Welding equipment and battery piece production system

Abstract

The embodiment of the utility model provides welding equipment and a battery piece production system. The welding equipment comprises a heating device, the heating device comprises a fixing plate, a mounting frame and a heating body, the heating body is arranged on the mounting frame in a floating mode, and the mounting frame is arranged in a lifting mode in the vertical direction relative to the fixing plate; the welding platform is used for bearing a battery piece with a welding strip, the welding platform is fixed to the fixing plate, the heating body is located below the welding platform, and the heating body is used for being matched with a pressing head to weld the welding strip. According to the welding equipment, the position of the heating body can be adjusted by driving the mounting frame and / or the heating body, so that the heating body is matched with the pressing head to weld the welding strip.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of mechanical equipment. More specifically, the embodiments of the present application relate to a welding device and a battery cell production system. Background Art

[0002] Solar panels are made up of cells, and two adjacent cells need to be welded together using welding ribbons.

[0003] Existing welding equipment is inefficient and of poor quality, which can easily cause battery cells to break, leading to problems such as poor quality of produced battery cells, desoldering, cold solder joints, and weld deviation.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0005] The purpose of this application is to provide a new technical solution for welding equipment and battery cell production system.

[0006] In a first aspect, an embodiment of the present application provides a welding device. The welding device includes:

[0007] The heating device comprises a fixing plate, a mounting frame and a heating body, wherein the heating body is floatably mounted on the mounting frame, and the mounting frame is vertically movable relative to the fixing plate;

[0008] The welding platform is used to carry the battery cell with the welding ribbon. The welding platform is fixed on the fixing plate. The heating body is located below the welding platform. The heating body is used to cooperate with the pressure head to weld the welding ribbon.

[0009] Optionally, the heating device further comprises a main drive mechanism, at least two auxiliary drive mechanisms and a transmission mechanism, wherein the at least two auxiliary drive mechanisms are respectively located on opposite sides of the main drive mechanism;

[0010] The auxiliary drive mechanism is linked with the main drive mechanism through the transmission mechanism. When the main drive mechanism drives the installation frame to move up and down, the auxiliary drive mechanism also drives the installation frame to move up and down.

[0011] Optionally, the main driving mechanism is close to a middle position of the mounting frame, and the auxiliary driving mechanism is close to an edge position of the mounting frame.

[0012] Optionally, the main driving mechanism includes a first driving component and a first telescopic component, one end of the first telescopic component is connected to the first driving component, and the other end of the first telescopic component passes through the fixing plate and is connected to the mounting frame.

[0013] Optionally, the auxiliary driving mechanism includes a second driving component and a second telescopic component, one end of the second telescopic component is connected to the second driving component, and the other end of the second telescopic component passes through the fixing plate and is connected to the mounting frame.

[0014] Optionally, the transmission mechanism includes a main transmission wheel, an auxiliary transmission wheel and a transmission belt, and the main transmission wheel and the auxiliary transmission wheel are connected by the transmission belt;

[0015] The main transmission wheel is connected to the first driving component, and the auxiliary transmission wheel is connected to the second driving component.

[0016] Optionally, the welding equipment includes two auxiliary drive mechanisms, each of which is provided with the auxiliary transmission wheel;

[0017] The transmission mechanism further comprises a connecting wheel assembly, and the transmission belt is wound around the connecting wheel assembly to connect the auxiliary transmission wheels on the two auxiliary drive mechanisms.

[0018] Optionally, the transmission mechanism further includes a transition wheel, and the transition wheel is located between the main transmission wheel and the auxiliary transmission wheel.

[0019] Optionally, the heating body is provided with a plurality of heating sub-bodies along its length direction, each of the heating sub-bodies is independently provided, and a plurality of strip-shaped welding heads are provided on the heating sub-bodies.

[0020] Optionally, a buffer mechanism is provided between the heating sub-body and the mounting frame, and the buffer mechanism drives the heating sub-body to float relative to the mounting frame.

[0021] Optionally, the buffer mechanism includes a connecting component and an elastic component, one end of the connecting component is connected to the mounting frame, and the other end is connected to one end of the elastic component; the other end of the elastic component is connected to the heating sub-body.

[0022] Optionally, the buffer mechanism further includes a limiting sleeve, which is sleeved outside the elastic component and one end of which is connected to the connecting component, and the limiting sleeve is used to limit the lower limit position of the floating heating sub-body.

[0023] Optionally, a limit block is provided on the upper surface of the heating sub-body close to the welding platform, and the limit block is used to limit the upper limit position of the floating of the heating sub-body.

[0024] Optionally, the heating sub-body includes a heating plate, and the strip welding head is arranged on the heating plate;

[0025] The heating plate includes a plate body and a heating component. A receiving cavity is provided in the plate body, and the heating component is located in the receiving cavity.

[0026] Optionally, the welding platform includes a carrier, which is provided with multiple grid areas along its length, each of which is used to support a battery cell provided with a welding strip; each of the grid areas is provided with multiple strip holes arranged along the width direction of the carrier, and the strip holes correspond to the positions of the welding strips.

[0027] Optionally, the carrier has an edge area, and the edge area surrounds the grid area; the edge area is provided with a heating module.

[0028] Optionally, a heat insulation plate is provided on a side of the mounting frame close to the heating body.

[0029] Optionally, the carrier further includes a heat-insulating component, and the heat-insulating component wraps the edge area.

[0030] Optionally, the welding platform further includes an air cooling pipeline, and the air cooling pipeline is arranged on the carrier.

[0031] Optionally, the welding tape is provided with a plurality of cured bonding portions, adjacent bonding portions are arranged at intervals, and the pressure head is located between adjacent bonding portions.

[0032] In a second aspect, an embodiment of the present application provides a battery cell production system, wherein the battery cell production system includes the welding device described in the first aspect.

[0033] Optionally, the battery cell production system further includes a welding transport device, which is used to transport the battery cell provided with the welding strip from the curing position to the welding equipment; the welding transport device includes the pressure head, which abuts against the welding strip.

[0034] According to an embodiment of the present application, the provided welding equipment can adjust the position of the heating body by driving the mounting frame and / or the heating body, so that the heating body and the pressure head can better cooperate to weld the welding strip, thereby improving the welding quality.

[0035] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0037] Figure 1 Shown is a structural diagram of the welding platform provided in an embodiment of the present application.

[0038] Figure 2 Shown is a side view of the welding platform provided in an embodiment of the present application.

[0039] Figure 3 Shown is a structural diagram of a heating device provided in an embodiment of the present application.

[0040] Figure 4 Shown is a side view of a heating device provided in an embodiment of the present application.

[0041] Figure 5 Shown is a structural diagram of the welding equipment provided in an embodiment of the present application.

[0042] Figure 6 The figure shows a side view of the welding device provided in the embodiment of the present application. Figure 1 .

[0043] Figure 7 Shown is a partial structural diagram of the heating device provided in an embodiment of the present application (the heating body is removed).

[0044] Figure 8 Shown is a side view of a partial structure of the heating device provided in an embodiment of the present application (the heating body is removed).

[0045] Figure 9 The figure shows a side view of the welding device provided in the embodiment of the present application. Figure 2 (Including air cooling pipes).

[0046] Figure 10 Shown is a top view of the welding equipment provided in an embodiment of the present application.

[0047] Figure 11 Shown is a structural diagram of the heating sub-body provided in an embodiment of the present application.

[0048] Description of reference numerals:

[0049] 1. Welding platform; 10. Carrier; 13. Edge area; 14. Heating module; 11. Grille area; 12. Strip holes; 15. Insulation components; 16. Air cooling pipes; 17. Support columns;

[0050] 2. Heating device; 20. Carrying body; 201. Fixing plate; 202. Mounting frame; 21. Heating body; 211. Heating sub-body; 212. Strip welding head; 213. Heating plate; 214. Plate body; 215. Accommodating cavity; 216. Heating component; 217. Limiting block; 203. Heat insulation board;

[0051] 22. Main driving mechanism; 221. First driving component; 222. First telescopic component;

[0052] 23. Auxiliary driving mechanism; 231. Second driving component; 232. Second telescopic component;

[0053] 24. Transmission mechanism; 241. Main transmission wheel; 242. Auxiliary transmission wheel; 243. Transmission belt; 244. Connecting wheel assembly; 245. Transition wheel;

[0054] 25. Buffer mechanism; 251. Connecting component; 252. Elastic component; 253. Limiting sleeve. DETAILED DESCRIPTION

[0055] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0056] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0057] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0058] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0059] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0060] An embodiment of the present application provides a welding device, which includes a heating device 2 and a welding platform 1. The heating body 21 of the heating device 2 can float and the mounting frame 202 of the heating device 2 can be raised and lowered. In this way, the vertical position of the heating device 2 can be adjusted, so that the heating body 21 and the pressure head can better cooperate to weld the welding strip, thereby improving the welding quality.

[0061] Reference Figure 5-Figure 6The welding equipment includes: a heating device 2 and a welding platform 1. The heating device 2 includes a fixed plate 201, a mounting frame 202, and a heating body 21. The heating body 21 is floatingly arranged on the mounting frame 202, and the mounting frame 202 is vertically movable relative to the fixed plate 201. The welding platform 1 is used to support battery cells with welding ribbons. The welding platform 1 is fixed to the fixed plate 201, and the heating body 21 is located below the welding platform 1. The heating body 21 is used to cooperate with the pressure head to weld the welding ribbon.

[0062] In this embodiment, the welding equipment includes a heating device 2. During the actual welding process, the heating body 21 of the heating device 2 is located below the battery cell, and the pressure head is located above the battery cell. The heating body 21 and the pressure head are both in contact with the welding strip, and the heating body 21 welds the welding strip.

[0063] Specifically, the heating device 2 includes a fixed plate 201, a mounting frame 202 and a heating body 21. The fixed plate 201 and the mounting frame 202 serve as the bearing body 20 that supports the heating body 21. Specifically, the fixed plate 201 serves as the basic supporting part of the entire heating device 2. The mounting frame 202 is arranged on the fixed plate 201 and can be raised and lowered in the vertical direction. Since the heating body 21 is arranged on the mounting frame 202, the mounting frame 202 can drive the heating body 21 to be raised and lowered in the vertical direction during the process of being raised and lowered in the vertical direction. The heating body 21 is installed on the mounting frame 202 and can be adjusted in a floating position. This means that the heating body 21 can not only be fixed on the mounting frame 202, but also can be slightly adjusted in position as needed to ensure precise docking with the welding strip.

[0064] For example, when welding a welding ribbon on the welding platform 1 using the heating device 2, the mounting frame 202 can first be driven to rise and fall in the vertical direction, thereby adjusting the general vertical position of the heating body 21, for example, adjusting the heating body 21 to a first position relatively close to the welding ribbon; then the heating body 21 can be driven to float in the vertical direction to further fine-tune the vertical position of the heating body 21, for example, driving the heating body 21 to float in the vertical direction to adjust the heating body 21 to a second position for welding the welding ribbon, and then the heating body 21 cooperates with the pressure head to weld the welding ribbon. Optionally, the vertical height of the second position can be slightly higher than the vertical height of the first position.

[0065] In this embodiment, the welding device further includes a welding platform 1, which is used to carry battery cells with welding strips. For example, the cured battery cells can be transported to the welding platform 1 by a welding transport device, and the welding platform 1 carries the battery cells.

[0066] The welding platform 1 is fixed on the fixing plate 201 and is located above the heating body 21. Figure 5 and Figure 6 The welding platform 1 is similar to a table structure. The welding platform 1 is larger than the heating body 21 as a whole, and the welding platform 1 is also larger than the mounting frame 202 as a whole, so that the heating body 21 and the mounting frame 202 are both located below the welding platform 1.

[0067] When the battery cell with the welding ribbon is placed on the welding platform 1, the pressure head can abut the welding and cooperate with the heating body 21, and the heating body 21 heats the welding ribbon to achieve welding.

[0068] For example, when welding is required, a cell with a solder ribbon is first placed on welding platform 1. Based on the position of the solder ribbon, the mounting frame 202 and / or the heater body 21 are driven to adjust the position and height of the heater body 21, ensuring precise alignment between the heater body 21 and the solder ribbon. With the heater body 21 and the press head in alignment, the heater body 21 heats the solder ribbon to perform welding.

[0069] Therefore, in this embodiment, the welding equipment can adjust the position of the heating body 21 by driving the mounting frame 202 and / or the heating body 21, so that the heating body 21 and the pressure head can better cooperate to weld the welding strip, thereby improving the welding quality.

[0070] In one embodiment, referring to Figure 4 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 10 The heating device 2 further includes a main drive mechanism 22, at least two auxiliary drive mechanisms 23 and a transmission mechanism 24, and the at least two auxiliary drive mechanisms 23 are respectively located on opposite sides of the main drive mechanism 22;

[0071] The auxiliary driving mechanism 23 is linked to the main driving mechanism 22 through the transmission mechanism 24 . When the main driving mechanism 22 drives the installation frame 202 to move up and down, the auxiliary driving mechanism 23 also drives the installation frame 202 to move up and down.

[0072] In this embodiment, the heating device 2 further includes a main driving mechanism 22, an auxiliary driving mechanism 23 and a transmission mechanism 24, which cooperate with each other to drive the mounting frame 202 to move up and down in the vertical direction.

[0073] Specifically, the main driving mechanism 22 is the main driving force source of the heating device 2 and is responsible for driving the mounting frame 202 to rise and fall in the vertical direction.

[0074] There are at least two auxiliary drive mechanisms 23, which are located on opposite sides of the main drive mechanism 22. Figure 9 and Figure 10 The heating device 2 includes two auxiliary drive mechanisms 23 , wherein one auxiliary drive mechanism 23 is located on the left side of the main drive mechanism 22 , and the other auxiliary drive mechanism 23 is located on the right side of the main drive mechanism 22 .

[0075] The auxiliary drive mechanism 23 assists the main drive mechanism 22 to jointly drive the installation frame 202 to move upward and downward, thereby increasing the stability and balance of the movement.

[0076] The transmission mechanism 24 connects the main drive mechanism 22 and the auxiliary drive mechanism 23 so that they can work in a linked manner. Specifically, when the main drive mechanism 22 starts, the auxiliary drive mechanism 23 is also driven simultaneously by the transmission mechanism 24, thereby acting together on the lifting of the mounting frame 202.

[0077] Therefore, in this embodiment, through the combined action of multiple drive mechanisms, the lifting and lowering of the mounting frame 202 can be more smoothly and accurately controlled, thereby improving the overall performance and stability of the heating device 2. At the same time, this design also increases the service life and reliability of the heating device 2.

[0078] It should be noted that the auxiliary drive mechanisms 23 include but are not limited to two, and the number of the auxiliary drive mechanisms 23 can be reasonably designed according to the size and shape of the mounting frame 202 .

[0079] In one embodiment, referring to Figure 4 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 10 The main driving mechanism 22 is close to the middle position of the mounting frame 202 , and the auxiliary driving mechanism 23 is close to the edge position of the mounting frame 202 .

[0080] In this embodiment, the main drive mechanism 22 is located in the middle of the mounting frame 202. Because it is in the center, the driving force generated by it can be more evenly transmitted to various parts of the mounting frame 202, which helps to achieve smooth lifting movement.

[0081] The auxiliary drive mechanism 23 is located close to the edge of the mounting frame 202. This arrangement helps to reduce the tilt or deviation of the mounting frame 202 during the lifting process because the auxiliary drive mechanism 23 can provide additional support and stability.

[0082] Therefore, in this embodiment, the layout of the main drive mechanism 22 and the auxiliary drive mechanism 23 optimizes the overall performance and stability of the heating device 2 and ensures the precise control and smooth movement of the mounting frame 202 during the lifting process.

[0083] In one embodiment, referring to Figure 4 、 Figure 6 、 Figure 8 and Figure 9 The main driving mechanism 22 includes a first driving component 221 and a first telescopic component 222 . One end of the first telescopic component 222 is connected to the first driving component 221 , and the other end passes through the fixing plate 201 and is connected to the mounting frame 202 .

[0084] In this embodiment, the first driving component 221 is the power source of the main driving mechanism 22 and is responsible for generating driving force. The first driving component 221 can be a motor, a cylinder, or other driving device capable of generating linear motion or rotational motion.

[0085] The first telescopic member 222 is connected to the first driving member 221 at one end and extends through the fixed plate 201 to connect it to the mounting frame 202 at the other end. The function of the first telescopic member 222 is to transmit the driving force generated by the first driving member 221 to the mounting frame 202, enabling it to be raised or lowered. The first telescopic member 222 can be a telescopic rod, push rod, connecting rod, or other component capable of transmitting linear motion.

[0086] In one embodiment, referring to Figure 4 、 Figure 6 、 Figure 8 and Figure 9 The auxiliary driving mechanism 23 includes a second driving component 231 and a second telescopic component 232 . One end of the second telescopic component 232 is connected to the second driving component 231 , and the other end passes through the fixing plate 201 and is connected to the mounting frame 202 .

[0087] In this embodiment, the second drive component 231 is the power source of the auxiliary drive mechanism 23 and is responsible for generating driving force. The second drive component 231 is similar to the first drive component 221 in the main drive mechanism 22 and can be a motor, a cylinder, or other drive device capable of generating linear motion or rotational motion.

[0088] The second telescopic member 232 is connected to the second drive member 231 at one end and extends through the fixed plate 201, connecting it to the mounting frame 202. The second telescopic member 232 transmits the driving force generated by the second drive member 231 to the mounting frame 202, assisting the main drive mechanism 22 in driving the mounting frame 202 upward and downward. Similar to the first telescopic member 222 in the main drive mechanism 22, the second telescopic member 232 can be a telescopic rod, push rod, connecting rod, or other component capable of transmitting linear motion.

[0089] For example, when the installation frame 202 needs to be raised or lowered, the main drive mechanism 22 and the auxiliary drive mechanism 23 simultaneously start operating to generate driving force. The driving force of the main drive mechanism 22 and the auxiliary drive mechanism 23 are respectively transmitted to the installation frame 202 through the first telescopic member 222 and the second telescopic member 232, and together act to raise or lower the installation frame 202.

[0090] In one embodiment, referring to Figure 10 The transmission mechanism 24 includes a main transmission wheel 241, an auxiliary transmission wheel 242 and a transmission belt 243, and the main transmission wheel 241 and the auxiliary transmission wheel 242 are connected by the transmission belt 243;

[0091] The main transmission wheel 241 is connected to the first driving component 221 , and the auxiliary transmission wheel 242 is connected to the second driving component 231 .

[0092] In this embodiment, the main drive mechanism 22 and the auxiliary drive mechanism 23 are connected together through a transmission mechanism 24, so that the main drive mechanism 22 and the auxiliary drive mechanism 23 can simultaneously drive the installation frame 202 to rise and fall.

[0093] Specifically, the main transmission wheel 241 is a main component of the transmission mechanism 24 and is connected to the first drive component 221 (i.e., the power source of the main drive mechanism 22). When the first drive component 221 is working, the first drive component 221 will drive the main transmission wheel 241 to rotate.

[0094] The auxiliary transmission wheel 242 is a secondary component of the transmission mechanism 24 and is connected to the second drive component 231 (i.e., the power source of the auxiliary drive mechanism 23). When the main transmission wheel 241 transmits power through the transmission belt 243, the auxiliary transmission wheel 242 will rotate accordingly, thereby driving the second drive component 231 to work.

[0095] The transmission belt 243 is a component connecting the main transmission wheel 241 and the secondary transmission wheel 242 for transmitting power. When the main transmission wheel 241 rotates, the main transmission wheel 241 drives the secondary transmission wheel 242 to rotate via the transmission belt 243.

[0096] For example, when the mounting frame 202 needs to be raised or lowered, the first drive component 221 activates, driving the main drive wheel 241 to rotate. The main drive wheel 241 transmits power to the auxiliary drive wheel 242 via the transmission belt 243, causing the auxiliary drive wheel 242 to rotate. The rotation of the auxiliary drive wheel 242 activates the second drive component 231, generating driving force. The driving forces of the main drive mechanism 22 and the auxiliary drive mechanism 23 act together on the mounting frame 202, enabling it to be raised or lowered vertically.

[0097] In one embodiment, referring to Figure 10 , the welding equipment includes two auxiliary drive mechanisms 23, each of the auxiliary drive mechanisms 23 is provided with the auxiliary transmission wheel 242;

[0098] The transmission mechanism 24 further includes a connecting wheel assembly 244 , and the transmission belt 243 is wound around the connecting wheel assembly 244 to connect the auxiliary transmission wheels 242 on the two auxiliary driving mechanisms 23 .

[0099] In this embodiment, the auxiliary transmission wheels 242 on the two auxiliary drive mechanisms 23 are connected together through the connecting wheel assembly 244, so that the two auxiliary drive mechanisms 23 can simultaneously follow the main drive mechanism 22 and drive the installation frame 202 to rise and fall.

[0100] Specifically, the welding device includes two auxiliary drive mechanisms 23, each of which is equipped with an auxiliary transmission wheel 242. A connecting wheel assembly 244 is newly added to the transmission mechanism 24 for connecting the auxiliary transmission wheels 242 on the two auxiliary drive mechanisms 23. The connecting wheel assembly 244 may include one or more connecting wheels, which are connected to the auxiliary transmission wheels 242 via a transmission belt 243. Figure 10 , the connecting wheel assembly 244 includes three connecting wheels.

[0101] In this embodiment, the transmission belt 243 not only connects the main transmission wheel 241 and the auxiliary transmission wheel 242, but also connects the auxiliary transmission wheels 242 on the two auxiliary drive mechanisms 23 by being wrapped around the connecting wheel assembly 244. When the main transmission wheel 241 rotates, power can be simultaneously transmitted to the two auxiliary transmission wheels 242 via the transmission belt 243, ensuring that the two auxiliary drive mechanisms 23 operate synchronously.

[0102] In one embodiment, referring to Figure 10 The transmission mechanism 24 further includes a transition wheel 245 , which is located between the main transmission wheel 241 and the auxiliary transmission wheel 242 .

[0103] In this embodiment, a transition pulley 245 is newly added to the transmission mechanism 24. This transition pulley 245 is located between the main transmission pulley 241 and the secondary transmission pulley 242. The primary function of transition pulley 245 is to redirect the transmission belt 243, enabling smoother power transmission from the main transmission pulley 241 to the secondary transmission pulley 242. The introduction of transition pulley 245 reduces friction and wear on the transmission belt 243 during power transmission, improving transmission efficiency.

[0104] In one embodiment, referring to Figure 3 、 Figure 4 、 Figure 9 and Figure 11 The heating body 21 is provided with a plurality of heating sub-bodies 211 along its length direction. Each heating sub-body 211 is independently provided. A plurality of strip-shaped welding heads 212 are provided on the heating sub-body 211 .

[0105] In this embodiment, the heating body 21 is composed of multiple heating sub-bodies 211, that is, the heating body 21 is made into multiple split heating sub-bodies 211. During the actual welding process, the heating sub-bodies 211 correspond to the battery cells one by one.

[0106] Specifically, the heating body 21 is divided along its length into a plurality of independent heating sub-bodies 211. This design allows each heating sub-body 211 to work independently, thereby improving the flexibility and accuracy of heating.

[0107] Each heating sub-body 211 is independently configured, which means that the temperature and heating time can be controlled independently. This independence makes the heating process more precise and the heating parameters of each heating sub-body 211 can be adjusted according to different welding requirements.

[0108] In addition, each heating sub-body 211 is provided with a plurality of strip-shaped welding heads 212. The design of the strip-shaped welding heads 212 makes the welding process more uniform and efficient.

[0109] For example, when welding is required, one or more heating sub-bodies 211 can be selectively activated based on the welding location. The strip welding heads 212 on the activated heating sub-bodies 211 begin heating and, in conjunction with the pressing head, weld the ribbon. Because each heating sub-body 211 is independently controlled, heating parameters such as temperature and heating time can be adjusted according to specific welding requirements.

[0110] In one embodiment, referring to Figure 4 、 Figure 6 and Figure 9 A buffer mechanism 25 is provided between the heating sub-body 211 and the mounting frame 202 , and the buffer mechanism 25 drives the heating sub-body 211 to float relative to the mounting frame 202 .

[0111] In this embodiment, a buffer mechanism 25 is provided between the heating sub-body 211 and the mounting frame 202. The buffer mechanism 25 can drive the heating sub-body 211 to float relative to the mounting frame 202. This floating function enables the heating sub-body 211 to better adapt to slight variations in the soldering ribbon and the surface being soldered during the soldering process, thereby maintaining stable soldering quality.

[0112] For example, when the heating sub-body 211 is subjected to external impact or vibration, the buffer mechanism 25 absorbs this energy, reducing its impact on the heating sub-body 211. At the same time, the buffer mechanism 25 can also automatically adjust the position of the heating sub-body 211 according to the unevenness of the welding surface or the slight movement of the welding strip, thereby maintaining the uniformity and continuity of the welding.

[0113] Continue to refer to Figure 4 、 Figure 6 and Figure 9 The buffer mechanism 25 includes a connecting component 251 and an elastic component 252. One end of the connecting component 251 is connected to the mounting frame 202, and the other end is connected to one end of the elastic component 252; the other end of the elastic component 252 is connected to the heating sub-body 211.

[0114] In this embodiment, the buffer mechanism 25 mainly includes a connecting component 251 and an elastic component 252. The connecting component 251 is responsible for connecting the buffer mechanism 25 to the mounting frame 202 and the heating sub-body 211. The elastic component 252 is responsible for providing buffering and floating functions.

[0115] One end of the connecting component 251 is connected to the mounting frame 202 to ensure that the buffer mechanism 25 can be stably mounted on the welding device. The other end is connected to one end of the elastic component 252 to transfer the buffering and floating functions of the elastic component 252 to the heating sub-body 211.

[0116] When the heating sub-body 211 is impacted or vibrated, the elastic component 252 absorbs this energy, reducing its impact on the heating sub-body 211. At the same time, the elastic component 252 can also automatically adjust the position of the heating sub-body 211 according to the unevenness of the welding surface or the slight movement of the welding strip.

[0117] Please continue to refer to Figure 4 、 Figure 6 and Figure 9 The buffer mechanism 25 also includes a limiting sleeve 253, which is sleeved outside the elastic component 252 and one end of the limiting sleeve 253 is connected to the connecting component 251. The limiting sleeve 253 is used to limit the lower limit position of the floating heating sub-body 211.

[0118] In this embodiment, when the heating sub-body 211 is subjected to a downward force, the elastic component 252 will compress and absorb this force. At the same time, the limiting sleeve 253 will limit the excessive compression of the elastic component 252, thereby limiting the lower limit position of the heating sub-body 211.

[0119] In this way, even during a high-intensity welding process, the heating sub-body 211 can maintain a stable floating range and will not be damaged or fail due to excessive compression.

[0120] Therefore, in this embodiment, the stability and reliability of the buffer mechanism 25 are further improved by providing the limiting sleeve 253. Specifically, the limiting sleeve 253 limits the lower limit position of the heating sub-body 211, avoiding welding quality problems caused by excessive floating.

[0121] In one embodiment, referring to Figure 3 and Figure 5 A limit block 217 is provided on the upper surface of the heating sub-body 211 close to the welding platform 1 , and the limit block 217 is used to limit the upper limit position of the floating of the heating sub-body 211 .

[0122] In this embodiment, when the heating sub-body 211 is subjected to an upward force, the elastic member 252 stretches and absorbs this force. At the same time, the stopper 217 contacts the welding platform 1 or other fixed components, thereby limiting the further rise of the heating sub-body 211.

[0123] In this way, the heating sub-body 211 can be kept within a predetermined floating range, and the welding quality will not be affected by excessive floating. In addition, the heating sub-body 211 will not damage the battery cell due to excessive upward floating.

[0124] In one embodiment, Figure 11 FIG. 2 shows the structure of a heating sub-body 211. Figure 9 and Figure 11 The heating sub-body 211 includes a heating plate 213, and the strip welding head 212 is arranged on the heating plate 213; the heating plate 213 includes a plate body 214 and a heating component 216, and a accommodating cavity 215 is opened in the plate body 214, and the heating component 216 is located in the accommodating cavity 215.

[0125] In this embodiment, the heating sub-body 211 mainly includes a heating plate 213, and the strip-shaped welding head 212 is disposed on the heating plate 213. For example, the strip-shaped welding head 212 and the heating plate 213 can be integrally formed.

[0126] The heating plate 213 consists of a plate body 214 and a heating element 216. Specifically, a cavity 215 is defined within the plate body 214 to accommodate and secure the heating element 216. Located within the cavity 215, the heating element 216 generates heat, which is then transferred to the strip welding head 212 via the heating plate 213. Upon receiving the heat, the strip welding head 212 heats the welding ribbon to the appropriate temperature, thereby achieving welding.

[0127] In one embodiment, referring to Figure 1 and Figure 2 The welding platform 1 includes a carrier 10, which is provided with a plurality of grid areas 11 along its length direction, and each of the grid areas 11 is used to carry a battery cell provided with a welding strip; each of the grid areas 11 is provided with a plurality of strip holes 12 arranged along the width direction of the carrier 10, and the strip holes 12 correspond to the positions of the welding strips.

[0128] In this embodiment, the welding platform 1 primarily comprises a carrier 10, which is used to support the cell. For example, the welding platform 1 also includes support columns 17, to which the carrier 10 is fixed. When the welding platform 1 is fixed to a fixed plate 201, the support columns 17 are actually fixedly connected to the fixed plate 201, with the heating body 21 and mounting frame 202 located below the carrier 10.

[0129] The platform 10 is divided into multiple grid areas 11 along its length. Each grid area 11 is designed to support a solar cell with a soldering ribbon. This design enables the welding platform 1 to process multiple solar cells simultaneously, improving welding efficiency.

[0130] Each grid area 11 is provided with a plurality of strip-shaped holes 12 arranged along the width direction of the carrier 10. The positions of these strip-shaped holes 12 correspond to the positions of the welding strips, ensuring that during the welding process, the strip-shaped welding head 212 of the heating body 21 accurately passes through the holes and contacts the welding strips to weld them.

[0131] In one embodiment, referring to Figure 1 and Figure 2 The carrier 10 has an edge area 13 , and the edge area 13 surrounds the grid area 11 ; a heating module 14 is provided in the edge area 13 .

[0132] In this embodiment, a heating module 14 is provided on the edge region 13 of the carrier 10. The heating module 14 is responsible for providing additional heat to assist the welding process or preheat the battery cell to improve the welding effect.

[0133] In one embodiment, referring to Figure 6 and Figure 7A heat insulation board 203 is provided on the side of the installation frame 202 close to the heating body 21.

[0134] In this embodiment, a heat insulation plate 203 is provided on the surface of the mounting frame 202 close to the heating body 21. The main function of the heat insulation plate 203 is to prevent the heat generated by the heating body 21 and the heat generated by the heating module 14 provided on the carrier 10 from being directly transferred to the mounting frame 202, thereby protecting the mounting frame 202 from the influence of high temperature and extending its service life.

[0135] In one embodiment, referring to Figure 9 The carrier 10 further includes a heat-insulating component 15 , which wraps the edge area 13 .

[0136] In this embodiment, the heat-insulating component 15 is designed to wrap the edge region 13 of the carrier 10. This means that the heat-insulating component 15 tightly covers the periphery of the edge region 13 to form a heat-insulating layer.

[0137] Specifically, a heating module 14 is provided at the edge of the carrier 10, and a heat preservation component 15 is wrapped around the edge area 13 to reduce heat loss of the heating module 14, so that the edge area 13 maintains a higher temperature, assists the welding process or preheats the battery cell, and improves the welding effect.

[0138] In one embodiment, referring to Figure 9 and Figure 10 The welding platform 1 further includes an air cooling pipeline 16 , which is disposed on the carrier 10 .

[0139] In this embodiment, an air cooling pipe 16 is also provided on the welding platform 1. After the heating device 2 completes welding the welding strip and the heating device 2 moves away from the carrier 10 of the welding platform 1, the air cooling pipe 16 is opened for air cooling to quickly cool the solder paste and improve the welding quality.

[0140] In one embodiment, the soldering tape is provided with a plurality of cured adhesive portions, adjacent adhesive portions are arranged at intervals, and the pressing head is located between adjacent adhesive portions.

[0141] In this embodiment, when welding the welding ribbon, the pressure head is located between the two adhesive parts, that is, the preliminary fixation of the welding ribbon by the adhesive is performed before the welding ribbon process, that is, in this embodiment, the welding ribbon is fixed to the battery cell by first dispensing glue and then welding, which improves the firmness of the welding ribbon fixed to the battery cell.

[0142] In a second aspect, embodiments of the present application provide a cell production system. The cell production system includes the welding device described in the first aspect. For example, the cell production system may be a cell string welding machine.

[0143] In one embodiment, the cell production system further includes a welding transport device for transporting the cell provided with the welding ribbon from the curing position to the welding platform 1; the welding transport device includes the pressing head, which abuts against the welding ribbon.

[0144] In this embodiment, the cell production system further includes a welding and handling device, which includes a pressing head. During the process of welding the welding strip, the pressing head cooperates with the strip welding head 212 of the heating body 21 to weld the welding strip.

[0145] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0146] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above examples may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A welding device, characterized in that: include: A heating device (2) comprises a fixing plate (201), a mounting frame (202) and a heating body (21), wherein the heating body (21) is arranged on the mounting frame (202) in a floating manner, and the mounting frame (202) is arranged to be raised and lowered in a vertical direction relative to the fixing plate (201); A welding platform (1) is used to carry a battery cell with a welding ribbon, the welding platform (1) is fixed on the fixing plate (201), the heating body (21) is located below the welding platform (1), and the heating body (21) is used to cooperate with a pressure head to weld the welding ribbon.

2. The welding equipment according to claim 1, characterized in that The heating device (2) further comprises a main drive mechanism (22), at least two auxiliary drive mechanisms (23) and a transmission mechanism (24), wherein the at least two auxiliary drive mechanisms (23) are respectively located on opposite sides of the main drive mechanism (22); The auxiliary drive mechanism (23) is linked to the main drive mechanism (22) through the transmission mechanism (24). When the main drive mechanism (22) drives the installation frame (202) to rise and fall, the auxiliary drive mechanism (23) also drives the installation frame (202) to rise and fall.

3. The welding equipment according to claim 2, characterized in that The main driving mechanism (22) is close to the middle position of the installation frame (202), and the auxiliary driving mechanism (23) is close to the edge position of the installation frame (202).

4. The welding equipment according to claim 2, characterized in that The main driving mechanism (22) comprises a first driving component (221) and a first telescopic component (222), one end of the first telescopic component (222) is connected to the first driving component (221), and the other end of the first telescopic component (222) passes through the fixing plate (201) and is connected to the mounting frame (202).

5. The welding device according to claim 4, characterized in that The auxiliary driving mechanism (23) comprises a second driving component (231) and a second telescopic component (232), one end of the second telescopic component (232) is connected to the second driving component (231), and the other end of the second telescopic component (232) passes through the fixing plate (201) and is connected to the mounting frame (202).

6. The welding device according to claim 5, characterized in that The transmission mechanism (24) comprises a main transmission wheel (241), a secondary transmission wheel (242) and a transmission belt (243), wherein the main transmission wheel (241) and the secondary transmission wheel (242) are connected via the transmission belt (243); The main transmission wheel (241) is connected to the first driving component (221), and the auxiliary transmission wheel (242) is connected to the second driving component (231).

7. The welding device according to claim 6, characterized in that The welding equipment comprises two auxiliary drive mechanisms (23), each of the auxiliary drive mechanisms (23) being provided with the auxiliary transmission wheel (242); The transmission mechanism (24) further comprises a connecting wheel assembly (244), and the transmission belt (243) is wound around the connecting wheel assembly (244) to connect the auxiliary transmission wheels (242) on the two auxiliary drive mechanisms (23).

8. The welding device according to claim 6, characterized in that The transmission mechanism (24) further includes a transition wheel (245), and the transition wheel (245) is located between the main transmission wheel (241) and the auxiliary transmission wheel (242).

9. The welding device according to any one of claims 1 to 8, characterized in that: The heating body (21) is provided with a plurality of heating sub-bodies (211) along its length direction, each heating sub-body (211) is independently provided, and a plurality of strip-shaped welding heads (212) are provided on the heating sub-body (211).

10. The welding device according to claim 9, characterized in that A buffer mechanism (25) is provided between the heating sub-body (211) and the mounting frame (202), and the buffer mechanism (25) drives the heating sub-body (211) to float relative to the mounting frame (202).

11. The welding device according to claim 10, characterized in that The buffer mechanism (25) comprises a connecting component (251) and an elastic component (252); one end of the connecting component (251) is connected to the mounting frame (202), and the other end is connected to one end of the elastic component (252); the other end of the elastic component (252) is connected to the heating sub-body (211).

12. The welding device according to claim 11, characterized in that The buffer mechanism (25) further comprises a limiting sleeve (253), wherein the limiting sleeve (253) is sleeved outside the elastic component (252) and one end of the limiting sleeve (253) is connected to the connecting component (251), and the limiting sleeve (253) is used to limit the lower limit position of the floating heating sub-body (211).

13. The welding device according to claim 9, characterized in that A limit block (217) is provided on the upper surface of the heating sub-body (211) close to the welding platform (1), and the limit block (217) is used to limit the upper limit position of the floating of the heating sub-body (211).

14. The welding device according to claim 9, characterized in that The heating sub-body (211) comprises a heating plate (213), and the strip welding head (212) is arranged on the heating plate (213); The heating plate (213) comprises a plate body (214) and a heating component (216); a receiving cavity (215) is provided in the plate body (214); and the heating component (216) is located in the receiving cavity (215).

15. The welding device according to claim 1, characterized in that The welding platform (1) comprises a carrier (10), wherein the carrier (10) is provided with a plurality of grid areas (11) along its length direction, each of the grid areas (11) being used to carry a battery cell provided with a welding strip; and each of the grid areas (11) is provided with a plurality of strip holes (12) arranged along the width direction of the carrier (10), wherein the strip holes (12) correspond to the positions of the welding strips.

16. The welding device according to claim 15, characterized in that The carrier (10) has an edge area (13), and the edge area (13) surrounds the grid area (11); the edge area (13) is provided with a heating module (14).

17. The welding device according to claim 1 or 16, characterized in that A heat insulation board (203) is provided on one side of the installation frame (202) close to the heating body (21).

18. The welding device according to claim 16, characterized in that The carrier (10) further comprises a heat-insulating component (15), wherein the heat-insulating component (15) wraps the edge region (13).

19. The welding device according to claim 15, characterized in that The welding platform (1) further comprises an air cooling pipeline (16), and the air cooling pipeline (16) is arranged on the carrier (10).

20. The welding device according to claim 1, wherein The welding strip is provided with a plurality of cured bonding portions, adjacent bonding portions are arranged at intervals, and the pressure head is located between the adjacent bonding portions.

21. A battery cell production system, characterized in that: The battery cell production system includes the welding equipment according to any one of claims 1 to 20.

22. The battery cell production system according to claim 21, characterized in that: The battery cell production system further includes a welding transport device, which is used to transport the battery cell provided with the welding ribbon from the curing position to the welding platform; the welding transport device includes the pressing head, which abuts against the welding ribbon.

Images