Welding assembly, welding device, and battery production system

Abstract

The application discloses a welding assembly, a welding device and a battery production system. The welding assembly comprises a base, a welding seat and a locking piece. The welding seat comprises a fixed part and a supporting part. The fixed part is arranged on the base, and the supporting part is connected to the fixed part and extends along a first direction. The projection area of the fixed part is larger than that of the supporting part on a projection plane perpendicular to the first direction. The locking piece is arranged through the base and is threadedly connected with the base. The locking piece is configured to clamp the fixed part in cooperation with the base. The outer surface of the fixed part comprises two first surfaces facing away from each other. The area of the first surface is larger than that of other surfaces of the fixed part. The locking piece and the base are clamped on the two first surfaces respectively, and the supporting part is arranged on the other surfaces of the fixed part. The technical scheme can improve the stability of the welding seat installation and improve the welding quality of the welding device.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a welding assembly, welding equipment, and battery production system. Background Technology

[0002] Welding apparatus in related technologies typically includes a base, a welding stand, and a welding head. The welding stand can be installed on the base and used to support the material to be welded, while the welding head can be used to weld the material on the welding stand.

[0003] However, when the welding device performs ultrasonic welding on the material to be welded, the welding head will vibrate at high frequency and transmit it to the welding seat, which can easily affect the stability of the welding seat installation, and thus affect the welding quality of the material to be welded. Utility Model Content

[0004] The main objective of this application is to provide a welding assembly designed to improve the stability of the welding socket installation, thereby enhancing the welding quality of the welding apparatus.

[0005] To achieve the above objectives, the welding assembly proposed in this application includes a base, a welding seat, and a locking member. The welding seat includes a fixing part and a supporting part. The fixing part is disposed on the base, and the supporting part is connected to the fixing part and extends along a first direction. On a projection plane perpendicular to the first direction, the projected area of ​​the fixing part is larger than the projected area of ​​the supporting part. The locking member passes through the base and is threadedly connected to the base. The locking member is configured to cooperate with the base to clamp the fixing part. The outer surface of the fixing part includes two back-to-back first surfaces, and the area of ​​the first surfaces is larger than the area of ​​other surfaces of the fixing part. The locking member and the base are respectively clamped on the two first surfaces, and the supporting part is disposed on other surfaces of the fixing part.

[0006] The technical solution of this application configures the welding socket as including a fixing part and a support part extending in a first direction. The projected area of ​​the fixing part on a plane perpendicular to the first direction is larger than that of the support part on the same plane. This allows the welding socket to connect to the base via the larger projected area of ​​the fixing part, thereby increasing the contact area between the two and improving the limiting effect of the base on the welding socket. Simultaneously, a locking member, threaded through and connected to the base, abuts against the fixing part, clamping it in conjunction with the base. This prevents the locking member from experiencing reciprocating tensile or shear forces when the welding socket is subjected to the force of the welding head, thus preventing its failure and ensuring stable abutment and limiting of the fixing part. Therefore, the structural design of the welding assembly in this solution, through the combination of the large-area limiting effect of the base and the stable abutment and limiting effect of the locking member, achieves stable fixation of the welding socket, improving the stability of the welding socket installation and thus enhancing the welding quality of the welding device. Furthermore, the locking element and the base are configured to clamp on the first surface with the largest area in the fixing part, which can further increase the contact area, thereby improving the clamping and limiting effect on the welding socket and further improving the stability of the welding socket installation.

[0007] In some embodiments, the outer surface of the fixing part further includes two back-to-back second surfaces and two back-to-back third surfaces, and the two first surfaces, two second surfaces, and two third surfaces are connected and configured as the outer surface of the fixing part; the support part is disposed on a second surface, and the area of ​​the second surface is larger than the area of ​​the third surface. Therefore, the support part and the fixing part can also have a larger contact area, which helps to improve the stability of the connection between them, thereby improving the overall strength of the welding base and its stability when installed on the base.

[0008] In some embodiments, the base is provided with a mounting groove and a threaded hole, the threaded hole communicating with the mounting groove; at least a portion of the fixing part is disposed within the mounting groove, at least a portion of the supporting part is disposed outside the mounting groove, and a locking member passes through the threaded hole. Thus, by accommodating the fixing part through the mounting groove, the contact area between the base and the fixing part can be further increased, thereby improving the limiting effect of the base on the fixing part and further enhancing the stability of the welding socket installation.

[0009] In some embodiments, the opening of the mounting groove is provided facing one side in the first direction, and the support portion protrudes from one side of the fixing portion in the first direction. In the first direction, the coverage ratio P of the fixing portion by the mounting groove is defined, satisfying the relationship: P ≥ 0.8. This facilitates the portable insertion and installation of the welding socket along its extension direction, and also allows the mounting groove to be set to better fit the fixing portion, improving the limiting effect on the fixing portion. The range of the coverage ratio P ensures that most of the fixing portion is inserted into the mounting groove, which helps to increase the contact area between the fixing portion and the base, thereby improving the limiting effect on the fixing portion.

[0010] In some embodiments, in the first direction, the projected size of the solder pad is defined as D1, and the projected size of the fixing part is defined as D2, satisfying the relationship: 0.3≤D2 / D1≤0.4. This achieves a good balance between limiting the position of the solder pad and minimizing its size.

[0011] In some embodiments, the base has a groove end face and a groove side face, the groove side face and the groove end face are configured to form a mounting groove, the groove end face is disposed facing the groove opening of the mounting groove; the fixing part abuts against the groove end face, one end of the threaded hole passes through the groove side face, the portion of the groove side face disposed facing the threaded hole cooperates with the locking member to clamp the fixing part, and there is a gap between the fixing part and part of the groove side face.

[0012] Therefore, the welding socket can be positioned to limit its movement when inserted into the mounting slot, while increasing the contact area between the base and the welding socket to improve the limiting effect. Furthermore, setting the fixing part and the mounting slot to a clearance fit reduces the possibility that machining errors may prevent the fixing part from being accurately inserted into the mounting slot.

[0013] In some embodiments, the gap between the fixing part and the side of the groove is defined as D3, satisfying the relationship: 0.2 mm ≤ D3 ≤ 0.4 mm. This allows for a better balance between machining errors and convenient insertion and installation of the welding socket, without affecting the positioning and limiting effect of the fixing part.

[0014] In some embodiments, the groove of the mounting slot is provided facing one side in the first direction, and the threaded hole extends along the second direction, which intersects with the first direction; the fixing part extends along the third direction, which intersects with the first direction and the second direction; the base extends along the second direction and has a first end and a second end opposite to each other in the second direction; the mounting slot is provided at the first end, and the threaded hole is provided on the side of the mounting slot away from the second end.

[0015] This allows the locking element to clamp the fixing part in the width direction of the fixing part, thereby improving the stability of its clamping and limiting. The mounting groove is located at the first end, and the threaded hole is located on the side of the mounting groove away from the second end, which helps to improve the overall compactness of the welding assembly structure. It also makes it less susceptible to the influence of the frame connected to the second end of the base in the welding device when the welding socket is installed on the base.

[0016] In some embodiments, the base is further provided with a receiving groove at the second end, the receiving groove extending at least through the end face of the second end facing away from the first end; the end of the threaded hole away from the mounting groove is connected to the receiving groove, the end of the locking member away from the fixing part is disposed in the receiving groove, and the receiving groove also extends through the surface of the base having the groove of the mounting groove.

[0017] This improves the compactness of the locking components mounted on the base, further reducing the size of the welded assembly in the second direction. Furthermore, the receiving groove extends through the surface of the base where the mounting groove is formed, increasing the accommodating space of the receiving groove for easier installation and arrangement of fasteners, while also simplifying the structure of the receiving groove and improving manufacturing convenience.

[0018] In some embodiments, the locking member and the base are clamped to the fixing part in a second direction, which intersects the first direction and is parallel to the vibration direction of the welding head in the welding device. This achieves targeted clamping and limiting of the welding seat in this vibration direction, which helps improve the stability of the welding seat clamping.

[0019] In some embodiments, the base is provided with a threaded hole, and the locking member passes through the threaded hole; in the second direction, the projected dimension of the base is defined as D4, and the extension length of the threaded hole is defined as D5, satisfying the relationship: 0.65≤D5 / D4≤0.75. Therefore, the clamping and limiting effect of the locking member on the welding seat and the minimization of its size can be effectively balanced.

[0020] In some embodiments, the number of locking members is at least two, and the at least two locking members are arranged along a third direction, which intersects with a first direction and a second direction. The projected dimension of the fixing part in the third direction is defined as D6, and the center distance between the two locking members with the largest interval in the third direction is defined as D7, satisfying the relationship: 0.6≤D7 / D6≤0.8. This achieves a better balance between the locking member's contact and limiting effect with the welding seat and the convenience of the locking member's installation arrangement.

[0021] In some embodiments, the number of locking members is at least two, and the at least two locking members are arranged along a first direction. The projected dimension of the fixing part in the first direction is defined as D2. Among the at least two locking members arranged in the first direction, the center distance between the two locking members with the largest interval is defined as D8, satisfying the relationship: 0.4 ≤ D8 / D2 ≤ 0.6. Therefore, the abutment and limiting effect of the locking members on the welding seat and the convenience of the locking member installation arrangement can be well balanced.

[0022] This application also proposes a welding apparatus, including a welding component and a welding head as described in any of the above embodiments; the welding head and the support portion in the welding component are disposed opposite each other in a first direction.

[0023] This application also proposes a battery production system, including the welding apparatus described above. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the welding apparatus of this application;

[0026] Figure 2 for Figure 1 A schematic diagram of the assembly structure of the welding components;

[0027] Figure 3 for Figure 2 Exploded view of the welding assembly;

[0028] Figure 4 for Figure 1 A partial structural diagram of the welding assembly.

[0029] Explanation of icon numbers:

[0030] 100. Welding device; 10. Welding assembly; 11. Base; 111. Base body; 111a. Mounting groove; 111b. Threaded hole; 1111. Groove end face; 1113. Groove side face; 111c. Receiving groove; 1115. First end; 1117. Second end; 113. Mounting plate; 113a. Mounting hole; 13. Welding base; 131. Fixing part; 1311. First surface; 1313. Second surface; 1315. Third surface; 133. Support part; 15. Locking element; 30. Welding head.

[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] Battery devices, which are devices used to store electrical energy, are widely used not only in energy storage power systems such as hydropower, thermal power, wind power and solar power plants, but also in electric vehicles such as electric bicycles, electric motorcycles, electric cars, rail trains and other fields.

[0037] The battery device may include a battery case and individual battery cells disposed within the battery case. The battery case may include a casing and a cover that fits over the casing to enclose a cavity for housing the individual battery cells. The individual battery cell is the smallest unit comprising the battery and typically includes a battery casing and an electrode assembly disposed within the battery casing. The electrode assembly is the component in the individual battery cell where the electrochemical reaction actually occurs, and may include a positive electrode, a negative electrode, and a separator located between them, formed by winding or stacking the positive electrode, negative electrode, and separator. The individual battery cell may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. Furthermore, the individual battery cell may be cylindrical, flat, cuboid, or other shapes. In addition, the battery case may contain multiple individual battery cells, which may be connected in series, in parallel, or in a hybrid connection including both series and parallel connections.

[0038] Furthermore, in the manufacturing process of battery devices, ultrasonic welding equipment is required to weld the first material to the second material, for example, welding the adapter piece to the tab using a welding equipment.

[0039] However, in related technologies, welding devices typically use screws to fix the welding base. During ultrasonic welding, the welding head vibrates at high frequency and this vibration is transmitted to the welding base. This causes the screws to be subjected to reciprocating tensile or shear forces, making them prone to failure. This affects the stability of the welding base installation and consequently the welding quality of the material being welded.

[0040] Therefore, based on the above considerations, in order to solve the problem of low stability of welding seats in welding devices in related technologies, this application proposes a novel welding assembly for use in welding devices. This welding assembly innovatively sets the welding seat to include a fixing part and a supporting part, with the projected area of ​​the fixing part in the extension direction of the supporting part being larger than that of the supporting part. This allows the fixing part to connect to the base through the larger area of ​​the fixing part, increasing the contact area between the two and improving the limiting effect of the base on the welding seat. Simultaneously, a locking member threaded into the base abuts and limits the fixing part, clamping it in conjunction with the base. This prevents the locking member from easily failing due to reciprocating tensile or shear forces when the welding seat is subjected to the force of the welding head, ensuring the locking member can stably perform its abutment and limiting function. Thus, through the large-area limiting effect of the base on the welding seat combined with the stable abutment and limiting effect of the locking member, a stable installation of the welding seat is achieved.

[0041] In addition, it should be noted that the welding equipment used in the welding components proposed in this application can be used for the production and manufacturing of battery devices as described above, or it can be used for the production and manufacturing of other products.

[0042] The structure of the welding assembly proposed in this application will be explained and illustrated below with examples:

[0043] Please refer to the reference. Figures 1 to 3 In one embodiment of this application, the welding assembly 10 proposed in this application includes a base 11, a welding seat 13, and a locking member 15; the welding seat 13 includes a fixing part 131 and a supporting part 133, the fixing part 131 is disposed on the base 11, the supporting part 133 is connected to the fixing part 131 and extends along a first direction; on a projection plane perpendicular to the first direction, the projected area of ​​the fixing part 131 is larger than the projected area of ​​the supporting part 133; the locking member 15 passes through the base 11 and is threadedly connected to the base 11, and the locking member 15 is configured to cooperate with the base 11 to clamp the fixing part 131.

[0044] The base 11 provides a mounting position for installing the welding support 13. To improve the ease of installation of the base 11 on the frame of the welding apparatus 100, the base 11 may include a base body 111 and a mounting plate 113. The base body 111 is used to install the welding support 13; the mounting plate 113 is connected to one end of the base body 111 and has mounting holes 113a for fasteners such as screws to secure it to the frame of the welding apparatus 100. Alternatively, the base 11 may consist only of the base body 111; this application does not limit the structural type of the base 11. Furthermore, the base body 111 may extend along a first direction, or it may extend along a direction intersecting the first direction. On a projection plane perpendicular to the extension direction, the projection of the base body 111 may be rectangular, square, or other shapes. When the welding apparatus 100 is in normal operating condition, with the ground as a reference, the first direction may be vertical. Of course, this application is not limited to this; the first direction can also be a horizontal direction or other directions.

[0045] The welding base 13 can be mounted on the base 11 via the fixing part 131, thus enabling the welding base 13 to be installed on the base 11. Simultaneously, the support part 133 can support the material to be welded. The fixing part 131 can be a base structure, or a block structure or a plate structure; this application does not limit the structural type of the fixing part 131. The projection of the fixing part 131 onto the projection plane perpendicular to the first direction can be rectangular, or square, etc. Furthermore, the fixing part 131 can be located on one side of the base 11 in the first direction, or it can be located on another side of the base 11. Moreover, it can be installed by inserting into the mounting groove 111a of the base 11 as described below, or it can be directly installed on the outer surface of the base 11. In addition, the support part 133 can be a column structure, or it can be a block structure; this application does not limit the structural type of the support part 133. The projection of the support part 133 onto the projection plane perpendicular to the first direction can be rectangular, or square, etc. Furthermore, the support portion 133 can be disposed on one side of the fixing portion 131 in the first direction, or it can be disposed on other sides of the fixing portion 131. Additionally, the fixing portion 131 and the support portion 133 can be an integral structure. This integral structure refers to being manufactured through an integral molding process, such as die casting, so that it can be formed as a whole after manufacturing. In this case, the overall structural strength of the welding base 13 can be improved, thereby improving the stability of the load-bearing capacity of the material to be welded during the welding process. Of course, in other embodiments, the fixing portion 131 and the support portion 133 can also be configured as separate structures, and then assembled by any connection method such as welding or bonding.

[0046] The locking member 15 can be threaded to the base 11 and abuts against the fixing part 131 to clamp and fix the welding seat 13 in cooperation with the base 11. At this time, since the locking member 15 and the welding seat 13 only have an abutting relationship, when the welding device 100 performs ultrasonic welding and the high-frequency vibration of the welding head 30 is transmitted to the welding seat 13, it will not cause reciprocating tensile or shearing forces on the locking member 15. The locking member 15 can be a screw. Furthermore, the number of locking members 15 can be one, or two, three, or more. In addition, the locking member 15 and the base 11 can clamp the welding seat 13 in a first direction, or in other directions; this application does not limit the clamping direction of the locking member 15 and the base 11 on the welding seat 13.

[0047] The technical solution of this application configures the welding base 13 as including a fixing part 131 and a support part 133 extending in a first direction. The projected area of ​​the fixing part 131 on the projection plane perpendicular to the first direction is larger than the projected area of ​​the support part 133 on the projection plane perpendicular to the first direction. This allows the welding base 13 to be connected to the base 11 through the fixing part 131 with a larger projected area, thereby increasing the contact area between the two and improving the limiting effect of the base 11 on the welding base 13. At the same time, a locking member 15, which passes through the base 11 and is threadedly connected to the base 11, abuts against the fixing part 131 to clamp the fixing part 131 in cooperation with the base 11. This ensures that when the welding base 13 is subjected to the force of the welding head 30, it will not cause reciprocating tensile or shearing forces on the locking member 15, which could easily lead to the failure of the locking member 15. This allows the locking member 15 to stably abut and limit the fixing part 131. Therefore, the structural design of the welding assembly 10 in this solution can achieve stable fixation of the welding base 13 by the combination of the large area limiting of the base 11 and the stable abutment limiting of the locking member 15, thereby improving the welding quality of the welding device 100 by improving the stability of the installation of the welding base 13.

[0048] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the outer surface of the fixing part 131 includes two back-to-back first surfaces 1311, the area of ​​the first surfaces 1311 being larger than the area of ​​the other surfaces of the fixing part 131; the locking member 15 and the base 11 are respectively clamped on the two first surfaces 1311, and the support part 133 is provided on the other surfaces of the fixing part 131.

[0049] The two first surfaces 1311 are the two surfaces of the fixing part 131 in the clamping direction of the locking member 15 and the base 11 welding seat 13. For example, when the locking member 15 and the base 11 are clamped to the fixing part 131 in the second direction as described below, the two first surfaces 1311 can be the two surfaces of the fixing part 131 in the second direction. The fact that the area of ​​the first surface 1311 is greater than the area of ​​the other surfaces of the fixing part 131 means that the first surface 1311 is the surface with the largest area in the fixing part 131, and its area is greater than the area of ​​any other surface.

[0050] In this embodiment, the locking member 15 and the base 11 are configured to clamp the two first surfaces 1311 with the largest area in the fixing part 131. This helps to further increase the contact area, thereby improving the clamping and limiting effect on the welding base 13 and further improving the stability of the welding base 13 installation. At the same time, a mechanism foundation can also be provided to arrange a larger number of locking members 15 to improve the contact and limiting effect on the welding base 13.

[0051] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the outer surface of the fixing part 131 further includes two back-to-back second surfaces 1313 and two back-to-back third surfaces 1315. The two first surfaces 1311, the two second surfaces 1313 and the two third surfaces 1315 are connected and configured as the outer surface of the fixing part 131. The supporting part 133 is disposed on one of the second surfaces 1313, and the area of ​​the second surface 1313 is larger than the area of ​​the third surface 1315.

[0052] When the support portion 133 is provided on one side of the fixing portion 131 facing the first direction as described above, the two second surfaces 1313 can be the two surfaces of the fixing portion 131 in the first direction.

[0053] In this embodiment, the area of ​​the second surface 1313 of the fixing part 131 used for mounting the support part 133 is set to be larger than the area of ​​the third surface 1315, so that the support part 133 and the fixing part 131 can also have a larger contact area, which is beneficial to improve the stability of the connection between the two, so as to improve the overall strength of the welding seat 13 and improve its stability when mounted on the base 11.

[0054] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the base 11 is provided with a mounting groove 111a and a threaded hole 111b, the threaded hole 111b communicating with the mounting groove 111a; at least a portion of the fixing part 131 is provided in the mounting groove 111a, at least a portion of the support part 133 is provided outside the mounting groove 111a, and the locking member 15 passes through the threaded hole 111b.

[0055] The mounting slot 111a is used for inserting and installing the fixing part 131. The shape of the mounting slot 111a can be adapted to the shape of the fixing part 131; for example, it can be uniformly rectangular. Alternatively, the shape of the mounting slot 111a can be different from that of the fixing part 131. The threaded holes 111b are used for inserting and installing the locking member 15. The number of threaded holes 111b can be adapted to the number of locking members 15.

[0056] In this example, by providing a mounting groove 111a on the base 11 to accommodate the fixing part 131, the contact area between the base 11 and the fixing part 131 can be further increased, thereby improving the limiting effect of the base 11 on the fixing part 131 and further improving the stability of the welding socket 13 installation. Furthermore, the mounting groove 111a can also position the welding socket 13, ensuring accurate installation at a preset position. In addition, by providing at least a portion of the support part 133 outside the mounting groove 111a, when the material to be welded is installed in the fixture during automated welding, the welding socket 13 can easily extend into the fixture to support the material to be welded.

[0057] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the groove of the mounting groove 111a is provided facing one side in the first direction, and the support part 133 protrudes from the fixing part 131 on one side in the first direction.

[0058] In this embodiment, the groove opening of the mounting groove 111a is positioned facing one side in the first direction, facilitating the convenient insertion and installation of the welding base 13 along its extension direction, i.e., the first direction. Furthermore, by having the support portion 133 protrude from the fixing portion 131 on one side in the first direction, the mounting groove 111a can be configured to better fit the fixing portion 131, improving the limiting effect on the fixing portion 131. Simultaneously, this allows the welding base 13 to have a linear structure, resulting in a simpler shape and higher structural strength.

[0059] In one embodiment of this application, in the first direction, the coverage of the fixing part 131 by the mounting groove 111a is defined as P, satisfying the relationship: P≥0.8.

[0060] The coverage of the fixing part 131 by the mounting groove 111a, that is, the ratio of the projected size of the area corresponding to the fixing part 131 in the first direction to the projected size of the fixing part 131 in the first direction.

[0061] In this embodiment, the coverage P of the mounting groove 111a of the fixing part 131 is set to be greater than or equal to 0.8, so that most of the fixing part 131 is inserted into the mounting groove 111a. This increases the contact area between the fixing part 131 and the base 11, thereby improving the limiting effect on the fixing part 131. The coverage P of the mounting groove 111a can be 0.8, 0.85, 0.9, 0.95, or 1, or any value within the above range.

[0062] In some embodiments, the surface of the fixing part 131 facing the support part 133, that is, a second surface 1313 described above, can be flush with the surface of the base 11 having the groove 111a, so as to improve the coverage of the fixing part 131 by the mounting groove 111a, while ensuring that the depth of the mounting groove 111a in the first direction is not too large and thus cannot effectively limit the fixing part 131.

[0063] Please refer to Figure 4 In one embodiment of this application, in the first direction, the projected size of the solder pad 13 is defined as D1, and the projected size of the fixing part 131 is defined as D2, satisfying the relationship: 0.3≤D2 / D1≤0.4.

[0064] In this embodiment, the projected size D2 of the fixing part 131 and the projected size D1 of the welding base 13 are set to 0.3 to 0.4. This ensures that the projected size of the fixing part 131 in the first direction is not too small, which would affect the contact area with the base 11 and the locking member 15 and thus affect the limiting effect. At the same time, it also ensures that the projected size of the fixing part 131 in the first direction is not too large, which would result in a large volume of the welding base 13 and a large space occupation. The ratio of D2 to D1 can be 0.3, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, or 0.4, or any value within the above range.

[0065] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the base 11 has a groove end face 1111 and a groove side face 1113. The groove side face 1113 and the groove end face 1111 are configured to form a mounting groove 111a. The groove end face 1111 is disposed facing the groove opening of the mounting groove 111a. The fixing part 131 abuts against the groove end face 1111. One end of the threaded hole 111b passes through the groove side face 1113. The portion of the groove side face 1113 disposed facing the threaded hole 111b cooperates with the locking member 15 to clamp the fixing part 131.

[0066] When the slot of the mounting slot 111a is provided on one side facing the first direction as described above, the slot end face 1111 can correspond to a second surface 1313 of the fixing part 131, and each slot side face 1113 can correspond to the first surface 1311 or the third surface 1315.

[0067] In this embodiment, the groove end face 1111 abuts against the fixing part 131. On the one hand, this can limit the welding seat 13 when it is inserted into the mounting groove 111a, thereby improving the accuracy of the installation of the welding seat 13. On the other hand, it can also increase the contact area between the base 11 and the welding seat 13, thereby improving the limiting effect of the welding seat 13.

[0068] In one embodiment of this application, there is a gap between the fixing part 131 and a portion of the groove side 1113.

[0069] The gap refers to the clearance fit between the fixing part 131 and the groove side 1113 of the mounting groove 111a, such that after the fixing part 131 is inserted into the mounting groove 111a and is stopped by the locking member 15, the part of the groove side 1113 used to clamp the fixing part 131 can abut against the fixing part 131. That is, the part of the groove side 1113 corresponding to a first surface 1311 of the fixing part 131 can abut against the fixing part 131, while the remaining part can form a gap with the fixing part 131.

[0070] In this embodiment, the fixing part 131 and the mounting groove 111a are configured to have a clearance fit, which can reduce the possibility that the fixing part 131 cannot be accurately inserted and installed into the mounting groove 111a due to the existence of processing errors.

[0071] In one embodiment of this application, the gap between the fixing part 131 and the side surface 1113 of the groove is defined as D3, which satisfies the relationship: 0.2 mm ≤ D3 ≤ 0.4 mm.

[0072] In this embodiment, the clearance in the clearance fit of the groove side 1113 of the mounting groove 111a of the fixing part 131 is set to 0.2 mm to 0.4 mm. This ensures that the clearance is not too small, which would affect the insertion and installation of the fixing part 131 due to the presence of processing errors. At the same time, it also ensures that the clearance is not too large, which would affect the positioning and limiting effect of the fixing part 131.

[0073] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the threaded hole 111b extends along a second direction, which intersects with the first direction; the fixing part 131 extends along a third direction, which intersects with the first and second directions.

[0074] In this embodiment, the threaded hole 111b extends along the second direction and the fixing part 131 extends along the third direction, so that the locking member 15 can clamp the fixing part 131 in the width direction of the fixing part 131, thereby improving the stability of its clamping and limiting.

[0075] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the base 11 extends along a second direction and has a first end 1115 and a second end 1117 opposite to each other in the second direction; the mounting groove 111a is provided at the first end 1115, and the threaded hole 111b is provided on the side of the mounting groove 111a away from the second end 1117.

[0076] When the base 11 includes a base body 111 and a mounting plate 113 as described above, the mounting plate 113 can be disposed at the second end 1117 of the base body 111, and the mounting groove 111a and the threaded hole 111b are disposed at the first end 1115, and fasteners can be inserted from the end face of the first end 1115 away from the second end 1117.

[0077] In this embodiment, setting the extension direction of the base 11 to intersect with the extension direction of the fixing part 131 is beneficial to improving the overall compactness of the welding assembly 10. Furthermore, the mounting groove 111a and threaded hole 111b are located at the first end 1115 of the base 11, which makes it less susceptible to the influence of the frame in the welding apparatus 100 connected to the second end 1117 of the base 11 when the welding socket 13 is mounted on the base 11. Simultaneously, when the welding socket 13 is inserted into the fixture to support the material to be welded as described above, this insertion action is also less susceptible to the influence of the structure of the second end 1117 of the base 11.

[0078] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the base 11 is further provided with a receiving groove 111c at the second end 1117. The receiving groove 111c penetrates at least through the end face of the second end 1117 facing away from the first end 1115. The end of the threaded hole 111b away from the mounting groove 111a is connected to the receiving groove 111c, and the end of the locking member 15 away from the fixing part 131 is provided in the receiving groove 111c.

[0079] In this embodiment, the accommodating groove 111c for the locking member 15 improves the compactness of the locking member 15's installation on the base 11, thereby further reducing the size of the welding assembly 10 in the second direction. Consequently, when the welding base 13 is inserted into the fixture as described above to support the material to be welded, the possibility of interference between the welding assembly 10 and the structure in the fixture can be reduced.

[0080] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the receiving groove 111c also penetrates the surface of the base 11 with the groove 111a.

[0081] In this embodiment, the receiving groove 111c is further configured to penetrate the surface of the base 11 with the groove 111a. On the one hand, this can increase the receiving space of the receiving groove 111c so as to install and arrange fasteners; on the other hand, it can also simplify the structure of the receiving groove 111c, thereby improving the convenience of processing the base 11.

[0082] Please refer to the reference. Figures 1 to 3 In one embodiment of this application, the locking member 15 and the base 11 are clamped to the fixing part 131 in a second direction, which is parallel to the vibration direction of the welding head 30 in the welding device 100.

[0083] In this embodiment, the clamping direction of the locking member 15 and the base 11 on the fixing part 131 is set to be parallel to the vibration direction of the welding head 30 in the welding device 100, and the direction in which the welding seat 13 is driven by the welding head 30 is also the vibration direction. This achieves targeted clamping and limiting of the welding seat 13 in the vibration direction, which is beneficial to improving the stability of clamping the welding seat 13.

[0084] In one embodiment of this application, in the second direction, the projected dimension of the base 11 is defined as D4, and the extension length of the threaded hole 111b is defined as D5, satisfying the relationship: 0.65≤D5 / D4≤0.75.

[0085] In this embodiment, the ratio of the extension length D5 of the threaded hole 111b to the projected size D4 of the base 11 is set to 0.65 to 0.75. This ensures that the extension length of the threaded hole 111b is not too short, which would affect the threaded connection effect of the locking member 15 and thus affect the clamping and limiting effect on the welding seat 13. On the other hand, it also ensures that the extension length of the threaded hole 111b is not too long, which would require a larger volume of the base 11 in the second direction and thus increase the space occupied.

[0086] Please refer to the reference. Figure 2 and Figure 4 In one embodiment of this application, to improve the contact and limiting effect of the locking member 15 with the welding seat 13, the number of locking members 15 can be set to at least two. These at least two locking members 15 can be arranged only along a third direction, or only along the first direction. Alternatively, a greater number of locking members 15 can be provided, with some arranged along the first direction and some along a third direction, the third direction intersecting the first and second directions.

[0087] Please refer to the reference. Figure 2 and Figure 4 In one embodiment of this application, at least two locking members 15 are arranged along a third direction. The projection dimension of the fixing part 131 in the third direction is defined as D6. Among the at least two locking members 15 arranged in the third direction, the center distance between the two locking members 15 with the largest interval is defined as D7, satisfying the relationship: 0.6≤D7 / D6≤0.8.

[0088] In this embodiment, setting the ratio of D7 to D6 to 0.6 to 0.8 ensures that the center distance D7 between the two largest locking members 15 is not too small, which would affect the contact and limiting effect of the welding seat 13 on both sides in the third direction; at the same time, it also ensures that the center distance D7 between the two largest locking members 15 is not too large, which would easily cause interference with other structures and affect their arrangement. The ratio of D7 to D6 can be 0.6, 0.65, 0.7, 0.75, or 0.8, or any value within the above range.

[0089] To achieve the same effect in the first direction, please refer to the reference. Figure 2 and Figure 4 In one embodiment of this application, at least two locking members 15 are arranged along a first direction. The projected dimension of the fixing part 131 in the first direction is defined as D2. Among the at least two locking members 15 arranged in the first direction, the center distance between the two locking members 15 with the largest interval is defined as D8, satisfying the relationship: 0.4≤D8 / D2≤0.6. The ratio of D8 to D2 can be 0.4, 0.45, 0.5, 0.55, or 0.6, or any value within the above range.

[0090] Please refer to the reference. Figure 2 and Figure 3In one embodiment of this application, the welding assembly 10 includes a base 11, a welding seat 13, and a locking member 15. The welding seat 13 includes a fixing part 131 and a supporting part 133. The fixing part 131 is disposed on the base 11, and the supporting part 133 is connected to the fixing part 131 and extends along a first direction. On a projection plane perpendicular to the first direction, the projected area of ​​the fixing part 131 is larger than the projected area of ​​the supporting part 133. The locking member 15 passes through the base 11 and is threadedly connected to the base 11. The locking member 15 is configured to cooperate with the base 11 to clamp the fixing part 131. The outer surface of the fixing part 131 includes two opposing first surfaces 1311, the area of ​​which is larger than the area of ​​the other surfaces of the fixing part 131. The locking member 15 and the base 11 are respectively clamped on the two first surfaces 1311, and the supporting part 133 is disposed on the other surfaces of the fixing part 131. The outer surface of the fixing part 131 also includes two opposing second surfaces 1313 and two opposing third surfaces 1315. The two first surfaces 1311, the two second surfaces 1313, and the two third surfaces 1315 are connected and configured to form the outer surface of the fixing part 131. The support part 133 is disposed on one of the second surfaces 1313, and the area of ​​the second surface 1313 is larger than the area of ​​the third surface 1315. The base 11 is provided with a mounting groove 111a and a threaded hole 111b, and the threaded hole 111b communicates with the mounting groove 111a. At least a portion of the fixing part 131 is disposed in the mounting groove 111a, at least a portion of the support part 133 is disposed outside the mounting groove 111a, and the locking member 15 passes through the threaded hole 111b. The opening of the mounting groove 111a is disposed facing one side in the first direction, and the support part 133 protrudes from one side of the fixing part 131 in the first direction. In the first direction, the coverage of the fixing part 131 by the mounting groove 111a is defined as P, satisfying the relationship: P≥0.8. In the first direction, the projected size of the welding base 13 is defined as D1, and the projected size of the fixing part 131 is defined as D2, satisfying the relationship: 0.3≤D2 / D1≤0.4. The base 11 has a groove end face 1111 and a groove side face 1113. The groove side face 1113 and the groove end face 1111 are configured to enclose the mounting groove 111a. The groove end face 1111 is provided facing the groove opening of the mounting groove 111a. The fixing part 131 abuts against the groove end face 1111. One end of the threaded hole 111b passes through the groove side face 1113. The portion of the groove side face 1113 that faces the threaded hole 111b cooperates with the locking member 15 to clamp the fixing part 131. The locking member 15 and the base 11 are clamped to the fixing part 131 in a second direction, which intersects with the first direction and is parallel to the vibration direction of the welding head 30 in the welding device 100. There are multiple locking members 15, and some locking members 15 are arranged along the first direction, while some locking members 15 are arranged along a third direction, which intersects with the first and second directions.

[0091] Please refer to Figure 1This application also proposes a welding apparatus 100, which includes a welding assembly 10 and a welding head 30. The specific structure of the welding assembly 10 is as described in the above embodiments. Since this welding apparatus 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The welding head 30 and the support portion 133 of the welding seat 13 in the welding assembly 10 are arranged opposite to each other in a first direction.

[0092] This application also proposes a battery production system, which includes a welding device 100. The specific structure of the welding device 100 is as described in the above embodiments. Since this battery production system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0093] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A welding assembly, characterized in that, include: Base; A welding socket, comprising a fixing part and a supporting part, wherein the fixing part is disposed on the base, and the supporting part is connected to the fixing part and extends along a first direction; on a projection plane perpendicular to the first direction, the projected area of ​​the fixing part is larger than the projected area of ​​the supporting part; as well as A locking member is provided through the base and threadedly connected to the base, and the locking member is configured to cooperate with the base to clamp the fixing part; The outer surface of the fixing part includes two back-to-back first surfaces, the area of ​​which is larger than the area of ​​the other surfaces of the fixing part; the locking member and the base are respectively clamped on the two first surfaces, and the support part is provided on the other surfaces of the fixing part.

2. The welding assembly as described in claim 1, characterized in that, The outer surface of the fixing part also includes two second surfaces facing each other and two third surfaces facing each other, and the two first surfaces, the two second surfaces and the two third surfaces are connected and configured as the outer surface of the fixing part; The support portion is disposed on a second surface, the area of ​​which is larger than the area of ​​the third surface.

3. The welding assembly as described in claim 1, characterized in that, The base is provided with a mounting groove and a threaded hole, the threaded hole being connected to the mounting groove; At least a portion of the fixing part is disposed within the mounting groove, at least a portion of the supporting part is disposed outside the mounting groove, and the locking member passes through the threaded hole.

4. The welding assembly as described in claim 3, characterized in that, The groove of the mounting slot is provided facing one side in the first direction, and the support part protrudes from the fixing part on one side in the first direction; in the first direction, the coverage rate of the fixing part by the mounting slot is defined as P, which satisfies the relationship: P≥0.

8.

5. The welding assembly as described in claim 4, characterized in that, In the first direction, the projected size of the welding base is defined as D1, and the projected size of the fixing part is defined as D2, satisfying the relationship: 0.3≤D2 / D1≤0.

4.

6. The welding assembly as claimed in claim 4, characterized in that, The base has a groove end face and a groove side face, the groove side face and the groove end face are configured to form the mounting groove, and the groove end face is disposed facing the groove opening of the mounting groove; The fixing part abuts against the end face of the groove, one end of the threaded hole penetrates the side surface of the groove, and a portion of the side surface of the groove facing the threaded hole cooperates with the locking member to clamp the fixing part, and there is a gap between the fixing part and a portion of the side surface of the groove.

7. The welding assembly as claimed in claim 6, characterized in that, The gap between the fixing part and the side of the groove is defined as D3, which satisfies the relationship: 0.2 mm ≤ D3 ≤ 0.4 mm.

8. The welding assembly as claimed in claim 3, characterized in that, The mounting groove is provided with its opening facing one side of the first direction, the threaded hole extends along the second direction and intersects with the first direction, and the fixing part extends along the third direction and intersects with the first direction and the second direction; The base extends along the second direction and has a first end and a second end opposite to each other in the second direction. The mounting groove is located at the first end, and the threaded hole is located on the side of the mounting groove away from the second end.

9. The welding assembly as claimed in claim 8, characterized in that, The base is further provided with a receiving groove at the second end, and the receiving groove at least penetrates the end face of the second end facing away from the first end; The end of the threaded hole away from the mounting groove is connected to the receiving groove, and the end of the locking member away from the fixing part is located in the receiving groove. The receiving groove also penetrates the surface of the base having the groove of the mounting groove.

10. The welding assembly as claimed in any one of claims 1 to 9, characterized in that, The locking member and the base are clamped to the fixing part in a second direction, which intersects with the first direction and is parallel to the vibration direction of the welding head in the welding device.

11. The welding assembly as claimed in claim 10, characterized in that, The base is provided with a threaded hole, and the locking member passes through the threaded hole; In the second direction, the projected dimension of the base is defined as D4, and the extension length of the threaded hole is defined as D5, satisfying the relationship: 0.65≤D5 / D4≤0.

75.

12. The welding assembly as claimed in claim 10, characterized in that, The number of locking elements is at least two, and the at least two locking elements are arranged along a third direction, which intersects the first direction and the second direction; The projection dimension of the fixing part in the third direction is defined as D6. Among the at least two locking members arranged in the third direction, the center distance between the two locking members with the largest interval is defined as D7, satisfying the relationship: 0.6≤D7 / D6≤0.

8.

13. The welding assembly as claimed in claim 10, characterized in that, The number of locking components is at least two, and the at least two locking components are arranged along the first direction; The projected dimension of the fixing part in the first direction is defined as D2. Among the at least two locking members arranged in the first direction, the center distance between the two locking members with the largest interval is defined as D8, satisfying the relationship: 0.4≤D8 / D2≤0.

6.

14. A welding apparatus, characterized in that, include: The welding assembly as described in any one of claims 1 to 13; and The welding head is disposed opposite to the support portion in the welding assembly in a first direction.

15. A battery production system, characterized in that, Includes the welding apparatus as described in claim 14.

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