Inspection mechanism for false welds and welding device comprising same

Abstract

The application discloses a virtual welding monitoring mechanism and a welding device with the same. The virtual welding monitoring mechanism comprises a rack, a first limiting piece, a vibration generating piece and an internal resistance detecting piece. The first limiting piece comprises a first limiting part connected with the rack, and is used for abutting against a first side of a tab. The first limiting piece further comprises a second limiting part, which is arranged in a first direction and is used for abutting against a second side of the tab. The vibration generating piece is connected with the rack and the second limiting part, and the first direction is a vibration direction of the vibration generating piece. The internal resistance detecting piece is electrically connected with the tab, and is used for detecting a change in internal resistance of the tab when the vibration generating piece vibrates. The virtual welding monitoring mechanism improves the detection accuracy and is not easy to cause damage to the battery.

Description

Technical Field

[0001] This disclosure generally relates to the field of battery technology, and more particularly to a faulty solder joint monitoring mechanism and a welding apparatus having the same. Background Technology

[0002] During battery production, components such as the tabs need to be welded. Due to the influence of materials or equipment, incomplete welds may occur during the welding process. Incomplete welds affect battery performance and even battery safety. Existing technology detects incomplete welds through tensile testing or DC and AC resistance testing.

[0003] However, tensile testing is a destructive test that can only be performed on a sample basis, while DC and AC resistance testing methods have the problem of insufficient detection. Utility Model Content

[0004] This invention provides a faulty solder joint monitoring mechanism and a welding device having the same, which improves the accuracy of detection and is less likely to damage the battery.

[0005] In a first aspect, this utility model provides a faulty solder joint monitoring mechanism, comprising a frame; a first limiting member, including a first limiting portion connected to the frame, the first limiting portion being used to abut against a first side of the electrode tab, the first limiting member further including a second limiting portion, the second limiting portion being spaced apart from the first limiting portion along a first direction and used to abut against a second side of the electrode tab; a vibration generating member, connected to the frame and connected to the second limiting portion, the first direction being the vibration direction of the vibration generating member; and an internal resistance detection member, used to be electrically connected to the electrode tab to detect changes in the internal resistance of the electrode tab when the vibration generating member vibrates.

[0006] As a possible implementation method, a first elastic element is also included; Along the first direction, the first limiting portion is connected to the frame via the first elastic member; and / or, along the first direction, the second limiting portion is connected to the vibration generating member via the first elastic member.

[0007] As an alternative implementation, a second limiting member is also included, the second limiting member including a third limiting member disposed on the same side as and connected to the first limiting member, for abutting against a first side of the tab connector; the vibration generating member is for abutting against a second side of the tab connector opposite to the first side; and the internal resistance detection member is for connecting to the tab connector.

[0008] As an alternative implementation, the second limiting member further includes a fourth limiting portion, which is spaced apart from the third limiting portion along the first direction. The fourth limiting portion is connected to the vibration generating member and is used to abut against the second side of the electrode tab.

[0009] As one possible implementation, the third limiting part is connected to the side of the first limiting part facing the second limiting part; The second limiting part is provided with a through hole, and the vibration end of the vibration generator passes through the through hole and is connected to the fourth limiting part. As a possible implementation method, a second elastic element is also included; Along the first direction, the third limiting part is connected to the first limiting part via the second elastic member; and / or, along the first direction, the fourth limiting part is connected to the vibration generating member via the second elastic member. As one possible implementation, the first limiting part includes a first limiting plate and a first limiting head connected at an angle to the first limiting plate. The first limiting plate is connected to the frame, and the first limiting head is used to abut against the first side of the electrode tab.

[0010] As an implementation method, at least the first limiting head is an electrical conductive element, and the internal resistance detection element is electrically connected to the first limiting head.

[0011] As an alternative implementation, a core fixing member connected to the frame is also included. The core fixing member includes a first fixing part and a second fixing part disposed opposite to each other, the first fixing part and the second fixing part being used to abut against opposite sides of the core respectively.

[0012] Secondly, this utility model provides a welding device, including the aforementioned faulty weld monitoring mechanism, a welding mechanism connected to the frame, and a transfer component connected to the frame, wherein the transfer component is used to transfer the electrode core from the welding mechanism to the faulty weld monitoring mechanism.

[0013] The above solution uses a first limiting member and a vibration generator arranged opposite each other along a first direction to limit the electrode tab on opposite sides. At the same time, when the vibration generator vibrates along the first direction, it can determine whether there is a cold solder joint on the electrode tab based on the change in the internal resistance of the internal resistance detection member connected to the electrode tab. The above detection method will not damage the electrode tab structure and can be used for full inspection. In addition, the in-situ vibration method avoids the problem of insufficient detection caused by metal overlap. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the cold solder joint monitoring mechanism according to an embodiment of this application; Figure 2 This is a partial three-dimensional structural schematic diagram of the weld detection mechanism according to an embodiment of this application; Figure 3 This is a partial side view of the weld detection mechanism according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the first limiting part of the weld detection mechanism according to an embodiment of this application; Figure 5 This is a partial top view of the weld detection mechanism according to an embodiment of this application; Figure 6 This is a top view of the welding apparatus according to an embodiment of this application.

[0015] Explanation of reference numerals in the attached figures: 100 cold solder joint monitoring agencies Frame 10, slide rail 11 First limiting member 20, first limiting part 21, first limiting plate 211, first limiting head 212, second limiting part 22, through hole 221. Vibration generator 30, slide 31, internal resistance detection element 40, first elastic element 50 Second limiting member 60, third limiting part 61, fourth limiting part 62 Second elastic element 70 Core fixing component 80, first fixing part 81, second fixing part 82 Welding device 1000, welding mechanism 200, electrode tab 300, electrode tab connector 400, electrode core 500. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0018] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0019] like Figures 1-3As shown, the weld defect monitoring mechanism 100 provided in the first aspect embodiment of this utility model includes a frame 10 for support. For example, the frame 10 may include a frame body, a back plate connected to the frame body, a top plate, side plates, and a floor connected to the back plate, etc.

[0020] like Figure 1 As shown, the cold solder joint monitoring mechanism 100 also includes a first limiting member 20, which includes a first limiting part 21 connected to the frame 10. The first limiting part 21 can be located at any position on the frame 10.

[0021] The first limiting portion 21 is used to abut against the first side of the electrode tab 300 to limit the electrode tab 300 on the first side. For example, the thickness direction of the electrode tab 300 is vertical, and the first limiting portion 21 can abut against the upper or lower side of the electrode tab 300. Preferably, the first limiting portion 21 abuts against the lower side of the electrode tab 300 to support and limit the electrode tab 300. Of course, it is understood that the first limiting portion 21 can abut against the entire surface of the first side of the electrode tab 300 or against a partial location on the first side of the electrode tab 300. Preferably, the first limiting portion 21 abuts against the welding position on the first side of the electrode tab 300.

[0022] like Figure 3 As shown, the first limiting member 20 also includes a second limiting part 22, which is spaced apart from the first limiting part 21 along the first direction and is used to abut against the second side of the tab 300.

[0023] By providing a second limiting part 22 that is spaced apart from the first limiting part 21 along a first direction, the first limiting part 21 and the second limiting part 22 can respectively abut against the opposite sides of the tab 300.

[0024] The second limiting part 22 and the first limiting part 21 may have the same or different structures. Preferably, as shown below... Figure 3 As shown, the first limiting part 21 and the second limiting part 22 have the same structure. For example, the first limiting part 21 can be L-shaped, etc. Figures 1-3 As shown, the weld defect monitoring mechanism 100 also includes a vibration generator 30, which generates vibration along a first direction. The vibration generator 30 is connected to the frame 10 and to the second limiting part 22. Specifically, the vibration direction of the vibration generator 30 can be vertical or horizontal, etc. In this application, the vibration direction of the vibration generator 30 is vertical.

[0025] The vibration generator 30 is connected to the second limiting part 22 so that the second limiting part 22 is connected to the frame 10. At the same time, the vibration generator 30 can apply in-situ vibration to the second side of the electrode tab 300 through the second limiting part 22. The second limiting part 22 can transmit vibration, and at the same time, it is not necessary to change the position of the vibration generator 30. By connecting different second limiting parts 22 or second limiting parts 22 with variable length and width, the vibration end of the vibration generator 30 can vibrate structures at a distance, thus improving the application range.

[0026] like Figure 1 As shown, the cold solder joint monitoring mechanism 100 also includes an internal resistance detection element 40. The internal resistance detection element 40 is electrically connected to the tab 300 to facilitate the measurement of the internal resistance of the tab 300. Thus, when the vibration generator 30 vibrates, the internal resistance change of the tab 300 is detected by the internal resistance detection element 40 to determine whether a cold solder joint exists. Specifically, if the tab 300 is firmly soldered, the detected internal resistance value of the tab 300 will be close to zero when the vibration generator 30 vibrates; if a cold solder joint exists in the tab 300, the detected internal resistance of the tab 300 will show a high internal resistance signal for a certain period of time when the vibration generator 30 vibrates, thus determining whether a cold solder joint exists in the tab 300.

[0027] Specifically, the detection effect can be effectively controlled by adjusting the vibration intensity of the vibration generator 30, such as amplitude, frequency, and duration, as well as the resistance change of the internal resistance detection element 40, to prevent missed detections or over-detection.

[0028] The above scheme, such as Figures 1-3 As shown, by setting the first limiting member 20 and the second limiting part 22 opposite to each other along the first direction, the electrode tab 300 is limited on opposite sides respectively. At the same time, when the vibration generating member 30 vibrates along the first direction, the internal resistance of the electrode tab 300 can be determined based on the change in the internal resistance of the electrode tab 300 by the internal resistance detection member 40 connected to the electrode tab 300. The above detection method will not damage the electrode tab 300 structure and can be used for full inspection. At the same time, the in-situ vibration method avoids the problem of insufficient detection caused by metal overlap.

[0029] In some embodiments, the vibration generator 30 can be an in-situ vibration generator. The internal resistance detection device 40 can be an internal resistance meter.

[0030] In some embodiments, such as Figures 1-3 As shown, the first limiting member 20 can be one or more. For example, there can be two first limiting members 20, which are used to abut against the first side of the positive and negative electrode tabs 300 respectively, so as to facilitate simultaneous detection of the welding status of the positive and negative electrode tabs 300. Correspondingly, the vibration generating member 30 can include one or more vibration ends. Preferably, there can be two vibration ends, which are used to abut against the second side of the positive and negative electrode tabs 300 respectively.

[0031] In some embodiments, the second limiting part 22 and the vibration generating element 30 can be fixedly connected or detachably connected. For example, they can be threaded or snap-fit ​​connected.

[0032] In some embodiments, the second limiting portion 22 may also be connected to the frame 10. Furthermore, the second limiting portion 22 may be movably connected to the frame 10 to be close to or away from the first limiting portion 21.

[0033] As a possible approach, such as Figure 3 As shown, the faulty weld monitoring mechanism 100 also includes a first elastic element 50, and along the first direction, the first limiting part 21 is connected to the frame 10 through the first elastic element 50; and / or, along the first direction, the second limiting part 22 is connected to the vibration generating element 30 through the first elastic element 50.

[0034] By setting a first elastic element 50 along the first direction, the vibration generating element 30 can play a buffering role when it vibrates along the first direction, reducing the possibility of mechanical damage to the tab 300.

[0035] Specifically, along the first direction, the first limiting part 21 is connected to the frame 10 via the first elastic member 50; at the same time, along the first direction, the second limiting part 22 is connected to the vibration generating member 30 via the first elastic member 50; or, along the first direction, the first elastic member 50 is connected between the first limiting part 21 and the frame 10, or, along the first direction, the second limiting part 22 is connected to the vibration generating member 30 via the first elastic member 50.

[0036] The first elastic element 50 can be a deformable structure such as a spring or rubber.

[0037] Along the first direction, the first limiting part 21 is connected to the frame 10 through the first elastic member 50. For example, the frame 10 includes a base plate, one end of the first elastic member 50 is connected to the first limiting part 21, and the other end is connected to the base plate.

[0038] Along the first direction, the second limiting part 22 is connected to the vibration generating part 30 through the first elastic member 50. For example, one end of the first elastic member 50 is connected to the second limiting part 22, and the other end is connected to the vibration generating part 30. Further, the first elastic member 50 is a spring, and the spring is provided with an elastic shaft that can deform along the first direction, or the spring is provided with a telescopic shaft that can extend and retract along the first direction.

[0039] The first elastic element 50 can be one or multiple elements spaced apart.

[0040] As a possible approach, such as Figure 3As shown, the cold solder joint monitoring mechanism 100 also includes a second limiting member 60, which includes a third limiting member 61 disposed on the same side as and connected to the first limiting member 21, for abutting against the first side of the electrode connector 400; a vibration generating member 30 for abutting against the second side of the electrode connector 400 relative to the first side; and an internal resistance detection member 40 for connecting to the electrode connector 400.

[0041] By setting a third limiting part 61 on the same side as and connected to the first limiting part 21, which abuts against the first side of the tab connector 400, and simultaneously the vibration generator 30 abuts against the second side of the tab connector 400 and vibrates, the internal resistance detection element 40 can determine whether there is a poor solder joint in the tab connector 400 based on the change in internal resistance within the tab connector 400. This allows for simultaneous monitoring of both the tab 300 and the tab connector 400, improving detection efficiency and simplifying the monitoring structure.

[0042] The third limiting part 61 can be fixedly connected to the first limiting part 21, for example, by welding or integral molding; the third limiting part 61 can be detachably connected to the first limiting part 21, for example, by threaded connection, snap-fit ​​connection, connector connection, etc.

[0043] The third limiting part 61 can be connected to one end of the first limiting part 21, or to the middle of the first limiting part 21, etc.; the third limiting part 61 and the first limiting part 21 can also be arranged in parallel and connected by a connecting structure, etc. In the present application, the first limiting part 21 and the third limiting part 61 are arranged in parallel.

[0044] The third limiting part 61 can be provided on the side of the first limiting part 21 facing the second limiting part 22, or it can be provided on the side of the first limiting part 21 away from the second limiting part 22.

[0045] As a possible approach, such as Figure 3 As shown, the second limiting member 60 also includes a fourth limiting part 62, which is spaced apart from the third limiting part 61 along the first direction. The fourth limiting part 62 is connected to the vibration generating member 30 and is used to abut against the second side of the electrode tab 300.

[0046] By providing a fourth limiting part 62 that is connected to the vibration generator 30 and spaced apart from the third limiting part 61 in the first direction, the third limiting part 61 and the fourth limiting part 62 can respectively abut against the opposite sides of the tab connector 400. At the same time, the vibration generator 30 can apply in-situ vibration to the tab connector 400 through the fourth limiting part 62.

[0047] The fourth limiting part 62 can transmit vibration, and at the same time, it is not necessary to change the position of the vibration generator 30. By connecting different fourth limiting parts 62 or fourth limiting parts 62 with variable length and width, the vibration end of the vibration generator 30 can vibrate structures at a greater distance, thus improving the application range.

[0048] The fourth limiting portion 62 may have the same structure as the third limiting portion 61, or they may be different. Preferably, the fourth limiting portion 62 has the same structure as the third limiting portion 61. For example, the fourth limiting portion 62 may be L-shaped or the like.

[0049] The fourth limiting part 62 and the vibration generating part 30 can be fixedly connected or detachably connected. For example, they can be connected by threads or by snap-fit.

[0050] As a possible approach, such as Figure 2 and Figure 3 As shown, the third limiting part 61 is connected to the side of the first limiting part 21 facing the second limiting part 22; the second limiting part 22 is provided with a through hole 221, the vibration end of the vibration generator 30 passes through the through hole 221 and is connected to the fourth limiting part 62.

[0051] By providing the third limiting part 61 on the side of the first limiting part 21 facing the second limiting part 22, and the fourth limiting part 62 on the side of the second limiting part 22 facing the first limiting part 21, the second limiting member 60 is located between the first limiting part 21 and the second limiting part 22, which facilitates the limiting of the tab connector 400 located on the side of the tab 300 in the horizontal direction.

[0052] Of course, this application is not limited to this. The first limiting member 20 and the second limiting member 60 may also be spaced apart along the direction from the tab 300 to the tab connector 400.

[0053] By providing a through hole 221 in the second limiting part 22, the vibration end of the vibration generator 30 passes through the through hole 221, which facilitates connection with the fourth limiting part 62 located in the second limiting part 22 facing the first limiting part 21, and the vibration of the vibration generator 30 to the second limiting part 22 and the fourth limiting part 62 does not affect each other.

[0054] Of course, this application is not limited to this. The fourth limiting part 62 can also be connected to the vibration generating member 30 through a clearance structure so that the vibration of the vibration generating member 30 does not affect the vibration of the second limiting part 22 and the fourth limiting part 62.

[0055] As a possible approach, such as Figure 3As shown, the weld detection mechanism 100 also includes a second elastic element 70; along the first direction, a third limiting part 61 is connected to a first limiting part 21 via the second elastic element 70; and / or, along the first direction, a fourth limiting part 62 is connected to a vibration generating element 30 via the second elastic element 70.

[0056] By providing a second elastic element 70 along the first direction, the vibration generator 30 can act as a buffer when it vibrates along the first direction, reducing the possibility of mechanical damage to the tab connector 400.

[0057] Specifically, along the first direction, the third limiting part 61 is connected to the first limiting part 21 via the second elastic member 70; at the same time, along the first direction, the fourth limiting part 62 is connected to the vibration generating member 30 via the second elastic member 70; alternatively, along the first direction, the second elastic member 70 is connected between the third limiting part 61 and the first limiting part 21, or along the first direction, the fourth limiting part 62 is connected to the vibration generating member 30 via the second elastic member 70.

[0058] The second elastic element 70 can be a deformable structure such as a spring or rubber.

[0059] Along the first direction, the fourth limiting part 62 is connected to the vibration generating member 30 through the second elastic member 70. For example, one end of the second elastic member 70 is connected to the fourth limiting part 62 and the other end is connected to the vibration generating member 30. Further, the second elastic member 70 is a spring, and the spring is provided with an elastic shaft that can deform along the first direction, or the spring is provided with a telescopic shaft that can extend and retract along the first direction.

[0060] The second elastic element 70 can be one or multiple elements spaced apart.

[0061] As a possible approach, such as Figure 4 As shown, the first limiting part 21 includes a first limiting plate 211 and a first limiting head 212 connected at an angle to the first limiting plate 211. The first limiting plate 211 is connected to the frame 10, and the first limiting head 212 is used to abut against the first side of the electrode tab 300. At least the first limiting head 212 is an electrical conductor, and the internal resistance detection element 40 is electrically connected to the first limiting head 212 through a wire.

[0062] By setting the first limiting part 21 to include a first limiting plate 211 and a first limiting head 212, the first limiting plate 211 is connected to the frame 10, and the first limiting head 212 is used to abut against the tab 300, so that the tab 300 at different positions can be abutted by changing the position of the first limiting head 212 on the first limiting plate 211.

[0063] The angle between the first limiting plate 211 and the first limiting head 212 can be a right angle, an acute angle, or an obtuse angle. In this application, the angle between the first limiting plate 211 and the first limiting head 212 is a right angle.

[0064] The first limiting plate 211 and the first limiting head 212 can be fixedly connected, for example, by welding or integral molding, or they can be detachably connected, for example, by threaded connection, snap-fit ​​connection, or connector connection.

[0065] The first limiting head 212 can be connected to the end and the middle of the first limiting plate 211. Preferably, the first limiting head 212 is connected to one end of the first limiting plate 211, and the other end of the first limiting plate 211 is connected to the frame 10.

[0066] The first limiting head 212 is a conductive element, and its specific material can be metal, non-metal, polymer material, etc., as long as it can conduct electricity and can press against the supporting tab 300. The first limiting plate 211 can be a conductive element or an insulator. When the first limiting plate 211 is a conductive element, the internal resistance detection element 40 can be connected to the first limiting head 212 or the first limiting plate 211.

[0067] In some embodiments, the structures of the second limiting part 22, the third limiting part 61, and the fourth limiting part 62 may be the same as the structure of the first limiting part 21.

[0068] In some embodiments, the vibration generator 30 is movably connected to the frame 10 so as to move closer to or further away from the first limiting part 21. For example, the vibration generator 30 can move along a first direction, a second direction at a certain angle to the first direction, a curve, etc.

[0069] In this application, the vibration generator 30 is slidably connected to the frame 10 along a first direction. For example... Figure 5 As shown, specifically, the frame 10 is provided with a slide rail 11 along the first direction, and the vibration generating element 30 is provided with a groove 31 that cooperates with the slide rail 11. Further, the slide rail 11 can be a T-shaped or I-shaped structure, and the groove 31 can be a corresponding inverted T-shaped structure. One or more slide rails 11 can be provided.

[0070] It is understood that the weld detection mechanism 100 also includes a drive component. For example, the drive component can be a linear motor, and the drive shaft of the linear motor is connected to the vibration generator 30 to drive the vibration generator 30 to slide along the slide rail 11 to achieve mutual approach and mutual distance with the first limiting member 20.

[0071] As a possible approach, such as Figure 3As shown, the faulty welding monitoring mechanism 100 also includes a core 500 fixing member 80 connected to the frame 10. The core 500 fixing member 80 includes a first fixing part 81 and a second fixing part 82 arranged opposite to each other. The first fixing part 81 and the second fixing part 82 are used to abut against the opposite sides of the core 500 respectively.

[0072] By setting the electrode core 500 fixing part 80, the electrode core 500 can be fixed, which facilitates the monitoring of poor solder joints of the electrode tab 300 and electrode tab connector 400 on the electrode core 500.

[0073] The first fixing part 81 and the second fixing part 82 are arranged opposite to each other, which facilitates fixing the pole core 500 on opposite sides and improves the stability of the fixing. The first fixing part 81 and the second fixing part 82 can be rotatably connected by a connector to move closer to or further away from each other; or at least one of the first fixing part 81 and the second fixing part 82 can be movably connected to the frame 10, for example, it can be slidably connected to the frame 10 to move closer to or further away from each other.

[0074] In some embodiments, the first fixing part 81 and the second fixing part 82 have the same structure. For example, the first fixing part 81 includes a fixing plate and a plurality of fixing heads spaced apart.

[0075] In some embodiments, the electrode core 500 fixing member 80 can be movably connected to the frame 10. For example, the electrode core 500 fixing member 80 can be slidably connected to the frame 10, or the electrode core 500 fixing member 80 can be movably connected to the frame 10 through a movable member so as to fix the electrode core 500 and then transfer the electrode core 500.

[0076] In some embodiments, the cold solder joint detection mechanism 100 further includes a controller, which is electrically connected to the internal resistance detection element 40. The controller determines whether there is a cold solder joint based on the internal resistance of the tab 300 and the tab connector 400 detected by the internal resistance detection element 40. If there is a cold solder joint, the battery is sent to the defective product area.

[0077] The welding apparatus 1000 provided in the second aspect embodiment of this utility model, such as Figure 6 As shown, it includes the cold solder joint monitoring mechanism 100 in the above embodiment, the welding mechanism 200 connected to the frame 10, and the transfer component connected to the frame 10. The transfer component is used to transfer the electrode core 500 from the welding mechanism 200 to the cold solder joint monitoring mechanism 100.

[0078] The welding device 1000 of this utility model integrates the welding mechanism 200 and the cold weld monitoring mechanism 100 together, which facilitates cold weld monitoring after welding and eliminates the need for a separate cold weld monitoring production line, thereby improving production efficiency.

[0079] The transfer component can be located between the welding mechanism 200 and the weld detection mechanism 100 to facilitate the transfer of the electrode core 500 from the welding mechanism 200 to the weld detection mechanism 100.

[0080] The transfer component can be the electrode core 500 fixing component 80, which serves to fix the electrode core 500 and transfer the electrode core 500 at the same time. One component has multiple uses, which simplifies the welding device 1000.

[0081] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A false solder monitoring mechanism, characterized by, include: frame; The first limiting member includes a first limiting part connected to the frame, the first limiting part being used to abut against a first side of the electrode tab; the first limiting member also includes a second limiting part, the second limiting part being spaced apart from the first limiting part along a first direction and being used to abut against a second side of the electrode tab. A vibration generator is connected to the frame and to the second limiting part, wherein the first direction is the vibration direction of the vibration generator; An internal resistance detection element is used to be electrically connected to the tab to detect changes in the internal resistance of the tab when the vibration generator vibrates.

2. The false solder monitoring mechanism according to claim 1, characterized in that, It also includes the first elastic element; Along the first direction, the first limiting portion is connected to the frame via the first elastic member; and / or, along the first direction, the second limiting portion is connected to the vibration generating member via the first elastic member.

3. The faulty weld monitoring mechanism according to claim 1, characterized in that, It also includes a second limiting member, which includes a third limiting member disposed on the same side as and connected to the first limiting member, for abutting against the first side of the electrode connector; the vibration generating member is used to abut against the second side of the electrode connector relative to the first side; and the internal resistance detection member is used to connect to the electrode connector.

4. The faulty weld monitoring mechanism according to claim 3, characterized in that, The second limiting member further includes a fourth limiting part, which is spaced apart from the third limiting part along the first direction. The fourth limiting part is connected to the vibration generating member and is used to abut against the second side of the electrode tab.

5. The faulty weld monitoring mechanism according to claim 4, characterized in that, The third limiting part is connected to the side of the first limiting part facing the second limiting part; The second limiting part is provided with a through hole, and the vibration end of the vibration generator passes through the through hole and is connected to the fourth limiting part.

6. The faulty weld monitoring mechanism according to claim 4, characterized in that, It also includes a second elastic element; Along the first direction, the third limiting part is connected to the first limiting part via the second elastic member; and / or, along the first direction, the fourth limiting part is connected to the vibration generating member via the second elastic member.

7. The faulty weld monitoring mechanism according to claim 1, characterized in that, The first limiting part includes a first limiting plate and a first limiting head connected at an angle to the first limiting plate. The first limiting plate is connected to the frame, and the first limiting head is used to abut against the first side of the electrode tab.

8. The faulty weld monitoring mechanism according to claim 7, characterized in that, At least the first limiting head is an electrical conductive element, and the internal resistance detection element is electrically connected to the first limiting head.

9. The faulty weld monitoring mechanism according to claim 1, characterized in that, It also includes a core fixing component connected to the frame, the core fixing component including a first fixing part and a second fixing part disposed opposite to each other, the first fixing part and the second fixing part being used to abut against opposite sides of the core respectively.

10. A welding apparatus, characterized in that, The device includes a faulty solder joint monitoring mechanism as described in any one of claims 1-9, a welding mechanism connected to the frame, and a transfer component connected to the frame, the transfer component being used to transfer the electrode core from the welding mechanism to the faulty solder joint monitoring mechanism.

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