Battery welding device and battery production system

Abstract

The invention relates to a battery welding device and a battery production system. The battery welding device comprises a support, a welding mechanism, a wire feeding mechanism and a first driving mechanism, the welding mechanism and the wire feeding mechanism are both arranged on the support, the welding mechanism comprises a welding head, the wire feeding mechanism comprises a wire feeding needle head used for conveying welding wires for welding of the welding head, and the wire feeding needle head and the welding head are arranged in a spaced mode in the first direction. The first driving mechanism is connected with the support and used for driving the support to rotate around a first axis parallel to the second direction. Wherein the first direction and the second direction intersect with each other, and the second direction is parallel to the direction, pointing to the bottom of the support, of the top of the support. According to the battery welding device, the welding mechanism and the wire feeding mechanism can be well utilized to weld workpieces to be welded in different directions on the circuit board, the welding requirement of the current circuit board can be better met, then the use convenience of the battery welding device is improved, and the application range of the battery welding device is widened.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a battery welding device and a battery production system. Background Art

[0002] In the related art, the temperature of the battery cell is usually collected by a temperature collection component provided on a circuit board. To this end, the temperature collection component needs to be welded to the circuit board. However, the traditional battery welding device cannot meet the current welding requirements of the circuit board. Summary of the invention

[0003] Based on this, it is necessary to provide a battery welding device and a battery production system to address the above technical problems, which can better meet the current welding needs of circuit boards, thereby improving the ease of use of the battery welding device and broadening the application scope of the battery welding device.

[0004] According to the first aspect of the present application, a battery welding device is provided, comprising a bracket, a welding mechanism, a wire feeding mechanism and a first driving mechanism, wherein the welding mechanism and the wire feeding mechanism are both arranged on the bracket, the welding mechanism comprises a welding head, the wire feeding mechanism comprises a wire feeding needle for conveying welding wire for welding the welding head, and the wire feeding needle and the welding head are arranged at intervals along a first direction. The first driving mechanism is connected to the bracket and is used to drive the bracket to rotate around a first axis parallel to a second direction. The first direction and the second direction intersect each other, and the second direction is parallel to the direction from the top of the bracket to the bottom of the bracket.

[0005] In the technical solution of the present application, when the battery welding device is in use, the first driving mechanism can be used to drive the bracket to rotate around the first axis parallel to the second direction, and the welding mechanism and the wire feeding mechanism on the bracket can be driven to rotate around the first axis parallel to the second direction. Since the second direction is parallel to the top of the bracket and points to the bottom of the bracket, the welding mechanism and the wire feeding mechanism can be rotated to different orientations around the first axis, and the welding mechanism and the wire feeding mechanism can be well utilized to weld workpieces to be welded at different orientations on the circuit board, which can better meet the current welding requirements of the circuit board, thereby improving the convenience of use of the battery welding device and broadening the application scope of the battery welding device.

[0006] In one embodiment, the bracket has a first end and a second end that are relatively arranged along a first direction, and the wire feed needle is arranged closer to the second end than the first end. The first driving mechanism is connected to the first end of the bracket and is used to drive the bracket to rotate around the first axis. Since the wire feed needle is arranged closer to the second end than the first end, the wire feed needle is farther away from the first axis along the first direction. In this way, in the process of driving the bracket to rotate around the first axis by the first driving mechanism, the wire feed needle can be driven to rotate in a large radial range, which is conducive to moving the wire feed needle and the welding head on one side to more pads in different directions on the circuit board.

[0007] In one embodiment, the battery welding device further includes a second driving mechanism, which is disposed on the bracket and connected to the wire feeding mechanism, and the second driving mechanism is used to drive the wire feeding mechanism to rotate around a second axis parallel to the second direction. The first axis and the second axis are spaced apart along the first direction. The second driving mechanism can be used to adjust the wire feeding angle of the wire feeding needle of the wire feeding mechanism relative to the welding head, that is, the angle of the welding wire output by the wire feeding needle relative to the welding head can be adjusted so as to better weld the circuit board and the workpiece to be welded together through the welding wire.

[0008] In one embodiment, the second axis coincides with the central axis of the welding head. The wire feeding needle can be driven to rotate around the central axis of the welding head by the second driving mechanism. During this process, the distance between the welding head and the wire feeding needle will not change. In this way, when the distance between the welding head and the wire feeding needle is adjusted, after adjusting the wire feeding angle of the wire feeding needle relative to the welding head, there is no need to adjust the distance between the welding head and the wire feeding needle, and the wire feeding needle can be used more conveniently to provide welding wire for the welding head.

[0009] In one embodiment, the battery welding device further includes a rotating platform and a rotating bearing, the rotating platform is connected to the second driving mechanism, the wire feeding mechanism is arranged on the rotating platform, and the second driving mechanism is used to drive the rotating platform and the wire feeding mechanism to rotate around the second axis; the rotating bearing has a central axis parallel to the second direction, and the rotating platform is connected to the bracket through the rotating bearing. In this way, the rotating platform and the wire feeding mechanism can be driven to rotate around the second axis more easily through the second driving mechanism, which can improve the reliability and service life of the battery welding device.

[0010] In one embodiment, the rotating platform and the rotating bearing respectively have passages for the welding head to pass through along the second direction, and the central axis of the passage coincides with the second axis. The welding head can pass through the passage, so as to be adjacent to and spaced from the wire feeding needle head, so as to facilitate the wire feeding needle head to rotate around the central axis of the welding head more conveniently, and after adjusting the wire feeding angle of the wire feeding needle head relative to the welding head, the wire feeding needle head can be used to more conveniently provide welding wire for the welding head.

[0011] In one embodiment, the battery welding device further includes a third driving mechanism, which is connected to the first driving mechanism and is used to drive the first driving mechanism to move along the second direction. The third driving mechanism can drive the first driving mechanism, the bracket, and the welding mechanism and wire feeding mechanism on the bracket to rise and fall along the second direction, thereby facilitating the adjustment of the height of the welding head and the wire feeding needle according to welding needs.

[0012] In one embodiment, the battery welding device further includes a distance detector and a controller, wherein the distance detector is disposed on one side of the welding head, and the distance detector is used to detect the distance between the welding head and the workpiece to be welded along the second direction. The controller is electrically connected to the distance detector and the third drive mechanism, respectively; wherein the controller is used to control the third drive mechanism to stop driving the first drive mechanism when the distance between the welding head and the workpiece to be welded along the second direction is less than or equal to a preset value. In this way, the distance between the welding head and the workpiece to be welded along the second direction can be made to be equal to the preset value, and then the distance between the welding head and the workpiece to be welded along the second direction can meet the welding requirements of the welding head, and then the welding head can be better used to perform welding operations on the circuit board and the workpiece to be welded.

[0013] In one of the embodiments, the wire feeding mechanism also includes a mounting seat, and the wire feeding needle is arranged on the bracket through the mounting seat, and the wire feeding needle is rotatably connected to the mounting seat around an axis parallel to the third direction. Among them, the first direction, the second direction and the third direction intersect each other. It is convenient to adjust the angle of the wire feeding needle relative to the target plane (the target plane is perpendicular to the second direction). For example, the wire feeding needle can be set at an acute angle relative to the target plane, which is convenient for the wire feeding needle to obliquely convey the welding wire to the welding head, thereby helping to improve the reliability of the welding operation. In addition, by adjusting the angle of the wire feeding needle relative to the target plane, the height of the welding wire output by the wire feeding needle can be adjusted to meet the welding requirements of workpieces to be welded at different heights.

[0014] In one embodiment, the wire feeding mechanism further includes an adjusting member, through which the wire feeding needle is connected to the mounting seat, and the adjusting member is used to enable the wire feeding needle to be rotatably connected to the mounting seat around an axis parallel to the third direction, so as to facilitate adjusting the angle of the wire feeding needle relative to the target plane and the height of the welding wire output by the wire feeding needle through the adjusting member.

[0015] In one embodiment, the mounting seat is provided with a connecting hole adapted to the adjusting member, and a plurality of alignment holes arranged at intervals around the connecting hole, and the wire feeding needle is detachably connected to the connecting hole through the adjusting member. In the process of adjusting the rotation angle of the wire feeding needle around the axis parallel to the third direction, the adjusting member can be first loosened to allow the wire feeding needle to rotate around the axis parallel to the third direction. When the wire feeding needle rotates to a suitable alignment hole, the wire feeding needle is then connected to the connecting hole through the adjusting member. In this way, the angle of the wire feeding needle relative to the target plane can be easily adjusted.

[0016] In one embodiment, the wire feeding mechanism further comprises a three-dimensional moving platform disposed on the bracket, the three-dimensional moving platform is connected to the wire feeding needle head, and is used to drive the wire feeding needle head to move along the first direction, the second direction and / or the third direction, wherein the first direction, the second direction and the third direction intersect with each other. In this way, it is convenient to adjust the position of the wire feeding needle head relative to the welding head along the first direction, the second direction and / or the third direction.

[0017] In one embodiment, the welding head is extended along the second direction, so that the welding head can be pressed on the integral structure formed by the circuit board and the temperature collection component, and the welding head can be used to weld the circuit board and the temperature collection component.

[0018] In one embodiment, the wire feeding needle is set at an angle ɑ to the target plane, wherein the target plane is perpendicular to the second direction; ɑ is an acute angle. The wire feeding needle is set obliquely relative to the welding head, so that the wire feeding needle can obliquely feed the welding wire to the welding head, thereby facilitating the reliability of the welding operation.

[0019] In one embodiment, 40°≤ɑ≤60°. This can facilitate the wire feeding needle to obliquely feed the welding wire to the welding head, thereby improving the reliability of the welding operation, and can also ensure that the height of the welding wire output by the wire feeding needle meets the welding requirements of the temperature collection component and the circuit board.

[0020] In one of the embodiments, the battery welding device is used to weld a circuit board and a temperature collection component, and the circuit board and the temperature collection component are electrically connected through the welding wire output by the wire feeding needle.

[0021] According to a second aspect of the present application, a battery production system is provided, comprising a battery welding device according to any one of the above embodiments.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0024] Figure 1 A schematic structural diagram of a battery welding device in an embodiment of the present application is shown.

[0025] Figure 2 A side view of a battery welding device in an embodiment of the present application is shown.

[0026] Figure 3 A schematic diagram of the structure of a circuit board with solder pads in different orientations is shown.

[0027] Figure 4 A schematic structural diagram of a wire feeding mechanism in an embodiment of the present application is shown.

[0028] Figure 5 A top view of a rotating platform and a mounting frame in one embodiment of the present application is shown.

[0029] Figure 6 A circuit block diagram of a third driving mechanism, a distance detector and a controller in an embodiment of the present application is shown.

[0030] Reference numerals: 10, battery welding device; 100, bracket; 110, frame; 101, first end; 102, second end; 200, welding mechanism; 210, welding head; 220, welding body; 230, welding seat; 300, wire feeding mechanism; 310, wire feeding needle; 320, mounting seat; 321, connecting hole; 322, alignment hole; 330, adjusting member; 340, three-dimensional moving platform; 350, wire feeding reel; 360, fourth driving mechanism; 371, Driving wheel; 372, driven wheel; 380, connecting seat; 410, first driving mechanism; 420, rotating shaft; 510, second driving mechanism; 520, rotating platform; 530, rotating bearing; 540, bearing seat; 550, mounting frame; 561, driving gear; 562, driven gear; 610, third driving mechanism; 620, lead screw; 630, lead screw nut; 700, distance detector; 800, controller; 20, welding wire; 30, circuit board; 40, welding pad. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] In the related art, a battery includes a battery cell, a circuit board and a temperature collection component. The temperature of the battery cell is usually collected by the temperature collection component provided on the circuit board. Therefore, the temperature collection component needs to be welded to the circuit board.

[0038] Due to the influence of the circuit layout of the circuit board, the position of the pads on the circuit board is not fixed, resulting in the inability of traditional battery welding devices to meet the current welding requirements of the circuit board.

[0039] In order to solve the technical problem that traditional battery welding devices cannot meet the current welding requirements of circuit boards, the present application designs a battery welding device and a battery production system, which can adjust the position of the welding mechanism and the wire feeding mechanism according to the orientation of the soldering pads of the circuit board, and can be suitable for the welding of soldering pads in different orientations and can meet the current welding requirements of circuit boards.

[0040] The battery welding device and / or battery production system disclosed in the embodiments of the present application can be used, but is not limited to, in the production of battery devices.

[0041] Figure 1 A schematic diagram of the structure of a battery welding device in an embodiment of the present application is shown. Figure 2 A side view of a battery welding device in an embodiment of the present application is shown.

[0042] Please refer to Figure 1 and Figure 2An embodiment of the present application provides a battery welding device 10, including a bracket 100, a welding mechanism 200, a wire feeding mechanism 300 and a first driving mechanism 410, wherein the welding mechanism 200 and the wire feeding mechanism 300 are both arranged on the bracket 100.

[0043] The welding mechanism 200 includes a welding head 210, and the wire feeding mechanism 300 includes a wire feeding needle 310 for feeding the welding wire 20 for welding of the welding head 210. The wire feeding needle 310 and the welding head 210 are spaced apart along the first direction F1. The first driving mechanism 410 is connected to the bracket 100 and is used to drive the bracket 100 to rotate around a first axis Z1 parallel to the second direction F2.

[0044] The first direction F1 and the second direction F2 intersect each other, and the second direction F2 is parallel to a direction from the top of the bracket 100 to the bottom of the bracket 100 .

[0045] The bracket 100 is a bracket for mounting components such as the welding mechanism 200, the wire feeding mechanism 300, and the first driving mechanism 410. The bracket 100 may be a whole, or may be formed by connecting a plurality of brackets 110. For example, the bracket 100 includes a plurality of connected brackets 110. Two adjacent brackets 110 may be connected by bolts, or may be welded together, and no specific limitation is made here.

[0046] The welding mechanism 200 is a mechanism disposed on the bracket 100 and used for welding the circuit board 30 and the temperature collecting member. The circuit board 30 may be a flexible circuit board (FPC for short).

[0047] The welding head 210 refers to a portion of the welding mechanism 200 that acts on the integral structure formed by the circuit board 30 and the temperature collection component and is used to perform welding operations on the circuit board 30 and the temperature collection component.

[0048] The wire feeding mechanism 300 is a mechanism for supplying the welding wire 20 for welding to the welding mechanism 200 .

[0049] The wire feeding needle 310 refers to a needle on the wire feeding mechanism 300 for outputting the welding wire 20. The welding wire 20 can be a tin wire.

[0050] The welding mechanism 200 can select existing or commercially available welding equipment. The welding mechanism 200 may include a welding body 220 and a welding seat 230. The welding body 220 is connected to the welding head 210 and is used to drive the welding head 210 to perform welding operations. The welding body 220 is installed on the bracket 100 through the welding seat 230.

[0051] The wire feeding mechanism 300 may be an existing or commercially available wire feeding mechanism.

[0052] The first driving mechanism 410 refers to a mechanism for driving the bracket 100 to rotate around the first axis Z1. The first driving mechanism 410 may be a rotary cylinder or a motor, which is not specifically limited herein.

[0053] The first direction F1 may be perpendicular to the second direction F2 . For example, the first direction F1 is parallel to the width direction of the bracket 100 , and the second direction F2 is parallel to the height direction of the bracket 100 .

[0054] When the battery welding device 10 of the present application is used, the first driving mechanism 410 can be used to drive the bracket 100 to rotate around the first axis Z1 parallel to the second direction F2, and the welding mechanism 200 and the wire feeding mechanism 300 on the bracket 100 can be driven to rotate around the first axis Z1 parallel to the second direction F2. Since the second direction F2 is parallel to the top of the bracket 100 and points to the bottom of the bracket 100, the welding mechanism 200 and the wire feeding mechanism 300 can be rotated to different orientations around the first axis Z1, and then the welding mechanism 200 and the wire feeding mechanism 300 can be well utilized to weld workpieces to be welded (such as temperature collection components, which can be temperature sensors, referred to as NTC) located at different orientations on the circuit board 30, which can better meet the current welding requirements of the circuit board 30, thereby improving the convenience of use of the battery welding device 10 and broadening the application scope of the battery welding device 10.

[0055] Figure 3 A schematic diagram of the structure of the circuit board 30 with pads 40 in different positions is given. Figure 3 In the figure, the dotted circle is the motion trajectory of the welding head 210 or the wire feeding needle head 310 rotating around the first axis Z1. Figure 3 It can be known that when the first driving mechanism 410 drives the bracket 100 to rotate around the first axis Z1, the welding head 210 and the wire feeding needle head 310 can be moved to above the welding pads 40 in different orientations, and then the battery welding device 10 can be used to perform corresponding welding operations between the workpiece to be welded and the welding pads 40 at the welding pads 40 in different orientations.

[0056] In some embodiments, the battery welding device 10 is used to weld a circuit board 30 and a temperature collection component, and the circuit board 30 and the temperature collection component are electrically connected through the welding wire 20 output by the wire feeding needle 310.

[0057] The wire feeding needle head 310 can be used to output the welding wire 20, and the welding head 210 of the welding mechanism 200 can be used to heat and melt the welding wire 20, so that the circuit board 30 and the temperature collection component can be welded together through the welding wire 20, thereby realizing the electrical connection between the circuit board 30 and the temperature collection component.

[0058] In some embodiments, the battery welding device 10 further includes a rotating shaft 420 connected to the bracket 100, and the first driving mechanism 410 is used to drive the rotating shaft 420 to rotate around a first axis Z1 parallel to the second direction F2, thereby driving the bracket 100, and the welding mechanism 200 and the wire feeding mechanism 300 on the bracket 100 to rotate around the first axis Z1 parallel to the second direction F2. It can be understood that the central axis of the rotating shaft 420 coincides with the first axis Z1.

[0059] In some embodiments, the bracket 100 has a first end 101 and a second end 102 that are relatively arranged along a first direction F1. Compared with the first end 101, the wire feeding needle head 310 is arranged closer to the second end 102. The first driving mechanism 410 is connected to the first end 101 of the bracket 100 and is used to drive the bracket 100 to rotate around the first axis Z1.

[0060] The first end 101 refers to an end of the bracket 100 that is farther away from the wire feeder needle 310 along the first direction F1, and the second end 102 refers to an end of the bracket 100 that is closer to the wire feeder needle 310 along the first direction F1.

[0061] Since the wire feeding needle 310 is arranged closer to the second end 102 than the first end 101, the wire feeding needle 310 is farther away from the first axis Z1 along the first direction F1. In this way, in the process of driving the bracket 100 to rotate around the first axis Z1 by the first driving mechanism 410, the wire feeding needle 310 can be driven to rotate in a large radial range, which is beneficial for moving the wire feeding needle 310 and the welding head 210 on one side to above more solder pads 40 in different orientations on the circuit board 30.

[0062] In some embodiments, Figure 4 As shown, the wire feeding mechanism 300 also includes a wire feeding drum 350, a fourth driving mechanism 360, a driving wheel 371 and a driven wheel 372. The welding wire 20 is wound on the wire feeding drum 350, and one end of the welding wire 20 away from the wire feeding drum 350 passes through the gap between the driving wheel 371 and the driven wheel 372, and is inserted into the wire feeding needle 310. The fourth driving mechanism 360 is connected to the driving wheel 371 to drive the driving wheel 371 to rotate. The driving wheel 371 is connected to the driven wheel 372 in a transmission connection. When the fourth driving mechanism 360 is running in the forward direction, the driving wheel 371 and the driven wheel 372 can be driven to rotate synchronously, and then the welding wire 20 is output through the wire feeding needle 310. After the welding operation is completed, the fourth driving mechanism 360 can also be reversed to realize the retraction of the welding wire 20 into the wire feeding needle 310. Among them, the fourth driving mechanism 360 can be a motor or a rotary cylinder.

[0063] In some embodiments, the battery welding device 10 also includes a second driving mechanism 510, which is disposed on the bracket 100 and is connected to the wire feeding mechanism 300. The second driving mechanism 510 is used to drive the wire feeding mechanism 300 to rotate around a second axis Z2 parallel to the second direction F2, and the first axis Z1 and the second axis Z2 are spaced apart along the first direction F1.

[0064] The second driving mechanism 510 refers to a mechanism for driving the wire feeding mechanism 300 to rotate around the second axis Z2. The second driving mechanism 510 may be a rotary cylinder or a motor, which is not specifically limited herein.

[0065] The wire feeding mechanism 300 can be driven to rotate around the second axis Z2 by the second driving mechanism 510, so that the wire feeding mechanism 300 rotates relative to the welding mechanism 200. The first axis Z1 and the second axis Z2 are arranged at intervals along the first direction F1. Therefore, the second driving mechanism 510 can be used to adjust the wire feeding angle of the wire feeding needle 310 of the wire feeding mechanism 300 relative to the welding head 210, that is, the angle of the welding wire 20 output by the wire feeding needle 310 relative to the welding head 210 can be adjusted, so as to better weld the circuit board 30 and the workpiece to be welded (such as a temperature collection component) together through the welding wire 20.

[0066] In addition, when the second driving mechanism 510 drives the wire feeding mechanism 300 to rotate around the second axis Z2, the welding wire 20 output by the wire feeding needle 310 may be reduced from being entangled or even interrupted due to the separate adjustment of the wire feeding needle 310, thereby improving the wire feeding reliability of the wire feeding mechanism 300.

[0067] In some embodiments, the second axis Z2 and the central axis of the welding head 210 coincide with each other.

[0068] In this embodiment, the welding head 210 is configured as a cylindrical structure.

[0069] Since the second axis Z2 coincides with the central axis of the welding head 210, the wire feeding needle 310 can be driven by the second driving mechanism 510 to rotate around the central axis of the welding head 210. During this process, the distance between the welding head 210 and the wire feeding needle 310 will not change. In this way, when the distance between the welding head 210 and the wire feeding needle 310 is adjusted, after adjusting the wire feeding angle of the wire feeding needle 310 relative to the welding head 210, there is no need to adjust the distance between the welding head 210 and the wire feeding needle 310, and the wire feeding needle 310 can be more conveniently used to provide the welding wire 20 for welding to the welding head 210.

[0070] In addition, when the wire feeding mechanism 300 is driven by the second driving mechanism 510 to rotate around the central axis of the welding head 210, the wire feeding needle 310 can be rotated slightly, which is convenient for quickly adjusting the wire feeding angle of the wire feeding needle 310 relative to the welding head 210, thereby helping to improve the welding efficiency of the battery welding device 10.

[0071] In some embodiments, the battery welding device 10 also includes a rotating platform 520 and a rotating bearing 530, the rotating platform 520 is connected to the second driving mechanism 510, the wire feeding mechanism 300 is arranged on the rotating platform 520, the second driving mechanism 510 is used to drive the rotating platform 520 and the wire feeding mechanism 300 to rotate around the second axis Z2, the rotating bearing 530 has a central axis parallel to the second direction F2, and the rotating platform 520 is connected to the bracket 100 through the rotating bearing 530.

[0072] The rotating platform 520 refers to a platform that can rotate around the second axis Z2 under the drive of the second driving mechanism 510 .

[0073] Since the rotating platform 520 is connected to the bracket 100 through the rotating bearing 530, and the rotating bearing 530 has a central axis parallel to the second direction F2, the rotating platform 520 and the wire feeding mechanism 300 can be more easily driven to rotate around the second axis Z2 through the second driving mechanism 510, thereby improving the reliability and service life of the battery welding device 10.

[0074] In some embodiments, the rotating bearing 530 is connected to the bracket 100 via a bearing seat 540 .

[0075] Combined with reference Figure 2 and Figure 5 The rotating platform 520 and the rotating bearing 530 respectively have a passage G for the welding head 210 to pass through along the second direction, and the central axis of the passage G coincides with the second axis Z2.

[0076] On the one hand, the second driving mechanism 510 can more easily drive the rotating platform 520 and the wire feeding mechanism 300 to rotate around the second axis Z2; on the other hand, the welding head 210 can pass through the aisle G, so as to be adjacent to and spaced apart from the wire feeding needle 310, so that the wire feeding needle 310 can be more conveniently rotated around the central axis of the welding head 210, and after adjusting the wire feeding angle of the wire feeding needle 310 relative to the welding head 210, the wire feeding needle 310 can be more conveniently used to provide the welding wire 20 for welding to the welding head 210.

[0077] In some embodiments, the battery welding device 10 further includes a driving gear 561 and a driven gear 562 meshing with each other, and the driven gear 562 is connected to the rotating platform 520. The output end of the second driving mechanism 510 is connected to the driving gear 561 to drive the driving gear 561 to rotate, thereby driving the driven gear 562 to rotate, and then driving the rotating platform 520 and the wire feeding mechanism 300 to rotate around the second axis Z2. It should be noted that the driven gear 562 also has the above-mentioned passage G so that the welding head 210 passes through the passage G of the rotating bearing 530, the rotating platform 520 and the driven gear 562 in sequence.

[0078] In some embodiments, the battery welding device 10 further includes a mounting frame 550 connected to the rotating platform 520 , and the fourth driving mechanism 360 is mounted on the mounting frame 550 , so as to facilitate the output and retraction of the welding wire 20 through the fourth driving mechanism 360 .

[0079] In some embodiments, the battery welding device 10 further includes a third driving mechanism 610 , which is connected to the first driving mechanism 410 , and is used to drive the first driving mechanism 410 to move along the second direction F2 .

[0080] The third driving mechanism 610 refers to a mechanism for driving the first driving mechanism 410 to move along the second direction F2. The third driving mechanism 610 may be a motor or a cylinder, and no specific limitation is made herein.

[0081] The third driving mechanism 610 can drive the first driving mechanism 410, the bracket 100, and the welding mechanism 200 and the wire feeding mechanism 300 on the bracket 100 to rise and fall in the second direction F2, thereby facilitating the adjustment of the height of the welding head 210 and the wire feeding needle head 310 according to welding requirements.

[0082] In some embodiments, the battery welding device 10 further includes a screw rod 620 extending along the second direction F2 and a screw nut 630 adapted to the screw rod 620 . The third driving mechanism 610 is connected to the screw rod 620 , and the screw nut 630 is connected to the first driving mechanism 410 .

[0083] In some embodiments, the battery welding device 10 further includes a distance detector 700 and a controller 800. The distance detector 700 is disposed on one side of the welding head 210. The distance detector 700 is used to detect the distance between the welding head 210 and the workpiece to be welded along the second direction F2; the controller 800 is electrically connected to the distance detector 700 and the third driving mechanism 610, respectively (such as Figure 6 ). The controller 800 is used to control the third driving mechanism 610 to stop driving the first driving mechanism 410 when the spacing between the welding head 210 and the workpiece to be welded along the second direction is less than or equal to a preset value.

[0084] The preset value may be set according to a suitable spacing between the welding head 210 and the workpiece to be welded along the second direction F2.

[0085] The distance detector 700 can be a distance sensor or a camera. The distance detector 700 is used to detect the distance between the welding head 210 and the workpiece to be welded along the second direction F2. When the distance between the welding head 210 and the workpiece to be welded along the second direction is less than or equal to a preset value, the controller 800 controls the third driving mechanism 610 to stop driving the first driving mechanism 410, so that the distance between the welding head 210 and the workpiece to be welded along the second direction F2 can approach to be equal to the preset value, thereby enabling the distance between the welding head 210 and the workpiece to be welded along the second direction F2 to meet the welding requirements of the welding head 210, thereby enabling the welding head 210 to be better utilized to perform welding operations on the circuit board 30 and the workpiece to be welded.

[0086] In some embodiments, the wire feeding mechanism 300 also includes a mounting seat 320, the wire feeding needle 310 is disposed on the bracket 100 through the mounting seat 320, and the wire feeding needle 310 is rotatably connected to the mounting seat 320 around an axis parallel to the third direction F3, wherein the first direction F1, the second direction F2 and the third direction F3 intersect each other.

[0087] The mounting seat 320 is used to mount the wire feeding needle head 310 .

[0088] Since the wire feeding needle 310 is rotatably connected to the mounting seat 320 around an axis parallel to the third direction F3, it is convenient to adjust the angle of the wire feeding needle 310 relative to the target plane (the target plane is perpendicular to the second direction F2). For example, the wire feeding needle 310 can be set at an acute angle relative to the target plane, which is convenient for the wire feeding needle 310 to obliquely transport the welding wire 20 to the welding head 210, thereby helping to improve the reliability of the welding operation. In addition, by adjusting the angle of the wire feeding needle 310 relative to the target plane, the height of the welding wire 20 output by the wire feeding needle 310 can be adjusted to meet the welding requirements of workpieces to be welded at different heights.

[0089] In some embodiments, the wire feeding mechanism 300 further includes an adjusting member 330, through which the wire feeding needle 310 is connected to the mounting seat 320, and the adjusting member 330 is used to rotatably connect the wire feeding needle 310 to the mounting seat 320 around an axis parallel to the third direction F3.

[0090] The adjusting member 330 can be used to conveniently adjust the angle of the wire feeding needle head 310 relative to the target plane and the height of the welding wire 20 output by the wire feeding needle head 310 .

[0091] In some embodiments, the mounting seat 320 is provided with a connecting hole 321 adapted to the adjusting member 330 , and a plurality of alignment holes 322 spaced around the connecting hole 321 , and the wire feeding needle head 310 is detachably connected to the connecting hole 321 through the adjusting member 330 .

[0092] The connection hole 321 refers to a hole provided on the mounting seat 320 and used for connecting the adjustment member 330 .

[0093] The alignment hole 322 refers to a hole provided on the mounting seat 320 and is used for angular alignment when the wire feeding needle head 310 rotates around an axis parallel to the third direction F3.

[0094] The plurality of alignment holes 322 may be arranged around the connection hole 321 at equal intervals.

[0095] For example, the adjusting member 330 is a bolt, and the connecting hole 321 is a threaded hole matched with the bolt.

[0096] In the process of adjusting the rotation angle of the wire feeding needle 310 around the axis parallel to the third direction F3, the adjusting piece 330 can be loosened first to allow the wire feeding needle 310 to rotate around the axis parallel to the third direction F3. When the wire feeding needle 310 is rotated to a suitable alignment hole 322, the wire feeding needle 310 is then connected to the connecting hole 321 through the adjusting piece 330. In this way, the angle of the wire feeding needle 310 relative to the target plane can be easily adjusted.

[0097] In some embodiments, the wire feeding mechanism 300 also includes a three-dimensional moving platform 340 disposed on the bracket 100, the three-dimensional moving platform 340 is connected to the wire feeding needle 310, and is used to drive the wire feeding needle 310 to move along the first direction F1, the second direction F2 and / or the third direction F3, wherein the first direction F1, the second direction F2 and the third direction F3 intersect each other.

[0098] The 3D moving stage 340 may be a commercially available electric 3D combined stage or a manual 3D moving stage.

[0099] In some embodiments, the first direction F1 , the second direction F2 , and the third direction F3 are perpendicular to each other.

[0100] The 3D moving stage 340 may be disposed at the bottom of the rotating platform 520 .

[0101] The wire feed needle head 310 can be driven to move along the first direction F1, the second direction F2 and / or the third direction F3 by the three-dimensional moving platform 340, so as to conveniently adjust the position of the wire feed needle head 310 relative to the welding head 210 along the first direction F1, the second direction F2 and / or the third direction F3.

[0102] In some embodiments, the wire feeding mechanism 300 further includes a connecting seat 380 , and the mounting seat 320 is disposed on the three-dimensional moving platform 340 via the connecting seat 380 .

[0103] In some embodiments, the welding head 210 is extended along the second direction F2.

[0104] The welding head 210 can be conveniently pressed onto the integral structure formed by the circuit board 30 and the temperature collection component, so that the welding head 210 can be better used to perform welding operations on the circuit board 30 and the temperature collection component.

[0105] In some embodiments, the wire feed needle head 310 is disposed at an angle ɑ to the target plane, wherein the target plane is perpendicular to the second direction F2 and ɑ is an acute angle.

[0106] The wire feeding needle 310 is tilted relative to the welding head 210, so that the wire feeding needle 310 can obliquely feed the welding wire 20 to the welding head 210, thereby facilitating the reliability of the welding operation.

[0107] In some embodiments, 40°≤ɑ≤60°.

[0108] For example, α may be 40°, 50°, or 60°.

[0109] Setting ɑ to satisfy the condition of 40°≤ɑ≤60° can not only facilitate the wire feeding needle 310 to obliquely feed the welding wire 20 to the welding head 210, thereby helping to improve the reliability of the welding operation, but also ensure that the height of the welding wire 20 output by the wire feeding needle 310 meets the welding requirements of the temperature collection component and the circuit board 30.

[0110] In addition, the adjustment range of the wire feeding needle 310 is small, which can reduce the possibility of the welding wire 20 output by the wire feeding needle 310 being entangled or even interrupted due to the single adjustment of the wire feeding needle 310, and can improve the wire feeding reliability of the wire feeding mechanism 300.

[0111] In some embodiments, the second driving mechanism 510 is used to drive the wire feeding mechanism 300 to rotate around a second axis Z2 parallel to the second direction F2, and the first axis Z1 and the second axis Z2 are spaced apart along the first direction F1.

[0112] On the one hand, the first driving mechanism 410 can be used to drive the welding mechanism 200 and the wire feeding mechanism 300 to rotate around the first axis Z1 to different orientations, so that the welding mechanism 200 and the wire feeding mechanism 300 can be well utilized to weld the workpieces to be welded at different orientations on the circuit board 30, which can better meet the current welding requirements of the circuit board 30; on the other hand, the angle of the welding wire 20 output by the wire feeding needle 310 relative to the welding head 210 can be adjusted so as to better weld the circuit board 30 and the workpiece to be welded (such as a temperature collection component) together through the welding wire 20.

[0113] An embodiment of the present application further provides a battery production system, comprising the battery welding device 10 of any of the above embodiments.

[0114] The battery welding device 10 can be used in the production of battery devices. The battery welding device 10 can be used to perform welding operations between a temperature collection component and a circuit board 30 so as to collect the temperature of a battery cell of the battery device using the temperature collection component of the battery device.

[0115] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A battery welding device, characterized in that: include: Bracket (100); A welding mechanism (200) and a wire feeding mechanism (300) are both arranged on the bracket (100); the welding mechanism (200) comprises a welding head (210); the wire feeding mechanism (300) comprises a wire feeding needle (310) for feeding welding wire for the welding head (210); the wire feeding needle (310) and the welding head (210) are arranged at intervals along a first direction; and A first driving mechanism (410) connected to the bracket (100) and used to drive the bracket (100) to rotate around a first axis (Z1) parallel to the second direction; The first direction and the second direction intersect each other, and the second direction is parallel to a direction from the top of the bracket (100) to the bottom of the bracket (100).

2. The battery welding device according to claim 1, characterized in that: The bracket (100) has a first end (101) and a second end (102) which are arranged opposite to each other along the first direction; Compared to the first end (101), the wire feeding needle head (310) is arranged closer to the second end (102); The first driving mechanism (410) is connected to the first end portion (101) of the bracket (100), and is used to drive the bracket (100) to rotate around the first axis (Z1).

3. The battery welding device according to claim 1, characterized in that: The battery welding device also includes a second driving mechanism (510); The second driving mechanism (510) is disposed on the bracket (100), and the second driving mechanism (510) is connected to the wire feeding mechanism (300), and the second driving mechanism (510) is used to drive the wire feeding mechanism (300) to rotate around a second axis (Z2) parallel to the second direction; The first axis (Z1) and the second axis (Z2) are arranged at intervals along the first direction.

4. The battery welding device according to claim 3, characterized in that: The second axis (Z2) and the central axis of the welding head (210) coincide with each other.

5. The battery welding device according to claim 3, characterized in that: The battery welding device also includes: a rotating platform (520) connected to the second driving mechanism (510), the wire feeding mechanism (300) being arranged on the rotating platform (520), the second driving mechanism (510) being used for driving the rotating platform (520) and the wire feeding mechanism (300) to rotate around the second axis (Z2); and A rotating bearing (530), the rotating bearing (530) having a central axis parallel to the second direction, and the rotating platform (520) is connected to the bracket (100) via the rotating bearing (530).

6. The battery welding device according to claim 5, characterized in that: The rotating platform (520) and the rotating bearing (530) respectively have a passage (G) for the welding head (210) to pass through along the second direction, and a central axis of the passage (G) coincides with the second axis (Z2).

7. The battery welding device according to any one of claims 1 to 6, characterized in that: The battery welding device further comprises a third driving mechanism (610), wherein the third driving mechanism (610) is connected to the first driving mechanism (410), and the third driving mechanism (610) is used to drive the first driving mechanism (410) to move along the second direction.

8. The battery welding device according to claim 7, characterized in that: The battery welding device also includes: a distance detector (700), arranged on one side of the welding head (210), the distance detector (700) being used to detect the distance between the welding head (210) and a workpiece to be welded along the second direction; and a controller (800), the controller (800) being electrically connected to the distance detector (700) and the third driving mechanism (610) respectively; The controller (800) is used to control the third driving mechanism (610) to stop driving the first driving mechanism (410) when the spacing between the welding head (210) and the workpiece to be welded along the second direction is less than or equal to a preset value.

9. The battery welding device according to any one of claims 1 to 6, characterized in that: The wire feeding mechanism (300) further comprises a mounting seat (320); The wire feeding needle head (310) is arranged on the bracket (100) via the mounting seat (320), and the wire feeding needle head (310) is rotatably connected to the mounting seat (320) around an axis parallel to the third direction; The first direction, the second direction and the third direction intersect each other.

10. The battery welding device according to claim 9, characterized in that: The wire feeding mechanism (300) further comprises an adjusting member (330); The wire feeding needle head (310) is connected to the mounting seat (320) via the adjusting member (330), and the adjusting member (330) is used to enable the wire feeding needle head (310) to be rotatably connected to the mounting seat (320) around an axis parallel to a third direction.

11. The battery welding device according to claim 10, characterized in that: The mounting seat (320) is provided with a connection hole (321) adapted to the adjustment member (330), and a plurality of alignment holes (322) arranged at intervals around the connection hole (321); The wire feeding needle head (310) is detachably connected to the connecting hole (321) via the adjusting member (330).

12. The battery welding device according to any one of claims 1 to 6, characterized in that: The wire feeding mechanism (300) further comprises a three-dimensional moving platform (340) arranged on the bracket (100), wherein the three-dimensional moving platform (340) is connected to the wire feeding needle head (310) and is used to drive the wire feeding needle head (310) to move along the first direction, the second direction and / or the third direction; The first direction, the second direction and the third direction intersect each other.

13. The battery welding device according to any one of claims 1 to 6, characterized in that: The welding head (210) is extended along the second direction.

14. The battery welding device according to any one of claims 1 to 6, characterized in that: The wire feeding needle head (310) is arranged at an angle ɑ to the target plane; Wherein, the target plane is perpendicular to the second direction; and ɑ is an acute angle.

15. The battery welding device according to claim 14, characterized in that: 40°≤ɑ≤60°.

16. The battery welding device according to any one of claims 1 to 6, characterized in that: The battery welding device is used to weld a circuit board (30) and a temperature collection component; The circuit board (30) and the temperature collecting component are electrically connected via the welding wire output by the wire feeding needle head (310).

17. A battery production system, characterized in that: Comprising a battery welding device as described in any one of claims 1-16.

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