Welding equipment and method for inductor

Abstract

The invention relates to the technical field of sensor production equipment, and discloses welding equipment and method for an inductor, and the welding equipment comprises a welding mechanism and a quality detection mechanism. The welding mechanism comprises a mounting seat, a welding turntable, a welding tool and a first welding machine; the welding tool comprises a welding base, a coil protection plate and a cover plate. The welding base is detachably installed on the welding rotary disc, one end of the cover plate is hinged to one end of the welding base, and the cover plate is used for opening and covering the welding base; the coil protection plate is used for covering the surface of the coil, the edge of the coil protection plate is recessed inwards to form an avoiding gap, and the avoiding gap is used for avoiding the joint of the coil and the busbar; and the cover plate is used for pressing the coil protection plate on the surface of the coil. According to the scheme, automatic welding of the inductor can be achieved, the structure is simple, reliability is high, and the technical problems of existing manual welding in the aspects of quality control, efficiency and reliability can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor production equipment, and in particular to a welding device and method for an inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. It generally includes a magnetic core and a coil wrapped around the surface of the magnetic core. An inductor is used to hinder the change of current. If there is no current flowing through the inductor, it will try to hinder the current when the circuit is connected. If there is current flowing through the inductor, when the circuit is disconnected, the inductor will try to maintain the current unchanged. It is also called a reactor.

[0003] In an inductor, a busbar is usually used to connect the lead-out terminals of the inductor, or to connect to other circuit components / loads to transmit current; in addition, a busbar can also connect multiple inductors in parallel or series to simplify the circuit connection method. Therefore, the busbar plays an important role in connection and transmission in the inductor, which can improve the performance and reliability of the circuit.

[0004] In the prior art, the busbar is generally connected to the lead-out end of the inductor by manual welding. This method is firmly connected and can withstand large currents. However, the manual welding method has many disadvantages in terms of quality control, efficiency and reliability. For example, first, the accuracy and consistency of manual welding are poor, and it is easy to have problems such as cold welding, false welding, and accumulation of welding beads. The above problems will lead to poor conductivity of the welding point, affecting the performance and reliability of the inductor. Second, during manual welding, it is difficult to accurately control the temperature, and it is easy to have too high or too low temperature: too high temperature may cause the coil insulation layer of the inductor to age or melt, or even damage the magnetic core of the inductor; while too low temperature may cause the solder to not fully melt, forming an unstable connection. Third, the manual welding speed is slow, which is difficult to meet the needs of large-scale production; at the same time, the welding parameters and operating postures need to be frequently adjusted during the manual welding process, which further reduces the production efficiency. Fourth, the strength of the solder joints of manual welding is usually low, and it is easy to fall off under mechanical vibration or external force, affecting the long-term reliability of the inductor.

[0005] Therefore, there is an urgent need for an inductor welding device with high reliability to realize automatic welding of inductors and solve the technical problems of existing manual welding in terms of quality control, efficiency and reliability. Summary of the invention

[0006] The purpose of the present invention is to provide an inductor welding device for realizing automatic welding of inductors, which has a simple structure and high reliability, can effectively solve the technical problems of existing manual welding in terms of quality control, efficiency and reliability, and overcome the shortcomings of the prior art.

[0007] Another object of the present invention is to provide a welding method for an inductor. Using the above welding equipment, the steps are simple and the operability is strong, which is conducive to improving the welding efficiency of the inductor and ensuring the welding quality of the inductor.

[0008] To achieve this object, the present invention adopts the following technical solutions: An inductor welding device comprises a welding mechanism and a quality detection mechanism, wherein a feeding end of the quality detection mechanism is arranged close to a feeding end of the welding mechanism, and the quality detection mechanism is used to detect the welding quality of the inductor; The welding mechanism comprises a mounting seat, a welding turntable, a welding tool and a first welding machine; the welding turntable is mounted on the bottom of the mounting seat, and the welding turntable rotates with the mounting seat as an axis; a plurality of welding tools are provided, and a plurality of welding tools are circumferentially mounted at intervals on the top edge of the welding turntable, and the welding tool is used to fix the inductor to be welded; the first welding machine is fixedly mounted on the mounting seat, and the welding gun of the first welding machine faces the upper surface of the welding turntable, and the first welding machine is used to weld the connection between the coil and the busbar of the inductor; The welding tool comprises a welding base, a coil protection plate and a cover plate; the welding base is detachably mounted on the welding turntable, and the welding base is used to support the inductor to be welded; one end of the cover plate is hinged to one end of the welding base, and the cover plate is used to open and close the welding base; The coil protection plate is used to cover the surface of the coil, and the edge of the coil protection plate is recessed inward to form an avoidance gap, and the avoidance gap is used to avoid the connection between the coil and the busbar; The cover plate is used to press the coil protection plate against the surface of the coil, and a relief area is provided on the surface of the cover plate, and the relief area is used to avoid the connection between the coil and the bus bar.

[0009] Preferably, the welding base includes a mounting platform, a support block and a support column; the mounting platform is detachably mounted on the welding turntable; the support blocks are protrudingly mounted on both sides of the middle part of the mounting platform, and the support blocks are used to abut against the magnetic core of the inductor; two support columns are provided, the two support columns are protrudingly mounted on the mounting platform, and the two support columns are located on the diagonal lines of the mounting platform, and the top ends of the two support columns are respectively used to abut against the cylindrical columns of the inductor.

[0010] Preferably, the welding base further comprises a hinge seat and a locking seat, and the hinge seat and the locking seat are respectively protrudingly mounted on both sides of the mounting platform; One end of the cover plate is hinged to the top end of the hinge seat; The other end of the cover plate is provided with a locking position, and the locking seat locks and unlocks the cover plate through the locking position.

[0011] Preferably, the locking seat comprises a locking base, an elastic member, a clamping block and a support beam; The locking base is protrudingly mounted on one side of the mounting platform; the clamping block is telescopically mounted on the upper portion of the inner wall of the locking base through the elastic member; the support beam is horizontally extended and protrudingly mounted on the upper portion of the inner wall of the locking base, and the upper surface of the support beam is used to abut against the bottom surface of the cover plate; When the cover plate is in a locked state, the clamping block passes through the locking position and clamps the edge of the locking position, and the bottom surface of the cover plate abuts against the upper surface of the support beam.

[0012] Preferably, the welding tool further comprises a pressing plate, wherein the pressing plate is mounted on the cover plate and arranged close to the avoidance area, and the pressing plate is used to press the busbar against the surface of the coil.

[0013] Preferably, the welding tool further comprises a pressing adhesive, which is protrudingly mounted on the bottom surface of the pressing sheet and is used to abut against the bus bar.

[0014] Preferably, the welding mechanism further comprises a second welder, the second welder is fixedly mounted on the mounting seat, and a welding gun of the second welder faces the upper surface of the welding turntable, and the second welder is used to weld the connection between the NTC sensor of the inductor and the NTC temperature signal transmission line; The first welding machine and the second welding machine are circumferentially installed on the mounting seat at intervals.

[0015] Preferably, a plate surface of the coil protection plate is provided with an avoidance position, and the avoidance position is used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line; The avoidance area is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line.

[0016] Preferably, the quality inspection mechanism includes a conveying device, a fixed tool and a camera; the fixed tool is installed on the top of the conveying device, and the fixed tool can move along the extension direction of the conveying device; the camera is installed at the end of the conveying device, and the camera is used to shoot and obtain the solder accumulation height of the inductor.

[0017] A method for welding an inductor, using the welding device for the inductor, comprises the following steps: (1) Placing the inductor to be welded on the welding base; (2) Connecting the NTC temperature signal transmission line to the NTC sensor of the inductor, and covering the coil protection plate on the surface of the coil; (3) Place the busbar on top of the coil and connect the busbar to the lead-out end of the coil; (4) closing the cover and locking the cover; (5) The welding tool of step (4) is transferred to the bottom of the first welding machine through the welding turntable to weld the connection between the coil and the busbar; (6) The welding tool of step (5) is transferred to the bottom of the second welding machine through the welding turntable, and the connection between the NTC sensor and the NTC temperature signal transmission line is welded; (7) Transfer the welding tooling of step (6) out of the second welding machine, open the cover plate and remove the coil protection plate; (8) The inductor welded in step (7) is placed in the quality inspection mechanism to inspect the welding quality of the inductor.

[0018] The technical solution provided by the present invention may include the following beneficial effects: 1. The welding equipment of this solution includes a welding mechanism for welding the inductor and a quality detection mechanism for detecting the welding quality of the welding mechanism, so as to take into account both the welding efficiency and quality of the welding equipment.

[0019] 2. In order to improve the welding quality of the inductor and ensure its long-term reliability, the present technical solution also proposes a welding tool for fixing the inductor, including a welding base, a coil protection plate and a cover plate. In addition to achieving effective fixation between the inductor and the parts to be welded, the coil can also be protected to prevent excessively high welding temperatures from causing aging or melting of the inductor's coil insulation layer, or even damaging the inductor's magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an inductor welding device of the present invention.

[0021] Figure 2 The present invention is a schematic structural diagram of a welding tool in an inductor welding device.

[0022] Figure 3 The present invention is a schematic structural diagram of a welding base and a cover plate in a welding device for an inductor.

[0023] Figure 4 The figure is a side view of a welding base and a cover plate in a welding device for an inductor according to the present invention.

[0024] Figure 5The present invention is a schematic structural diagram of a coil protection plate in an inductor welding device.

[0025] Figure 6 It is a schematic diagram of the installation of step (1) in a welding method of an inductor of the present invention.

[0026] Figure 7 It is a schematic diagram of the installation of step (2) in a welding method of an inductor of the present invention.

[0027] Figure 8 It is a schematic diagram of the installation of step (3) in a welding method of an inductor of the present invention.

[0028] Fig. 9 It is a schematic diagram of the installation of step (7) in a welding method of an inductor of the present invention.

[0029] in: Welding mechanism 1, mounting seat 11, welding turntable 12, welding tool 13, welding base 131, mounting platform 1311, support block 1312, support column 1313, hinged seat 1314, locking seat 1315, locking base 13151, clamping block 13152, support beam 13153, coil protection plate 132, avoidance gap 1321, avoidance position 1322, cover plate 133, avoidance area 1331, locking position 1332, pressing sheet 134, pressing glue 135, first welding machine 14, second welding machine 15; Quality inspection mechanism 2, conveying device 21, fixed tooling 22, camera 23; Inductor 3 , coil 31 , bus bar 32 , magnetic core 33 , cylinder 34 , NTC temperature signal transmission line 35 . DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further illustrated below through specific implementation methods.

[0031] An inductor welding device comprises a welding mechanism 1 and a quality detection mechanism 2, wherein a feeding end of the quality detection mechanism 2 is arranged close to a feeding end of the welding mechanism 1, and the quality detection mechanism 2 is used to detect the welding quality of the inductor 3; The welding mechanism 1 includes a mounting seat 11, a welding turntable 12, a welding tool 13 and a first welding machine 14; the welding turntable 12 is mounted on the bottom of the mounting seat 11, and the welding turntable 12 rotates around the mounting seat 11; a plurality of welding tools 13 are provided, and a plurality of welding tools 13 are circumferentially installed at intervals on the top edge of the welding turntable 12, and the welding tool 13 is used to fix the inductor 3 to be welded; the first welding machine 14 is fixedly mounted on the mounting seat 11, and the welding gun of the first welding machine 14 faces the upper surface of the welding turntable 2, and the first welding machine 14 is used to weld the connection between the coil 31 and the bus 32 of the inductor 3; The welding tool 13 includes a welding base 131, a coil protection plate 132 and a cover plate 133; the welding base 131 is detachably mounted on the welding turntable 12, and the welding base 131 is used to support the inductor 3 to be welded; one end of the cover plate 133 is hinged to one end of the welding base 131, and the cover plate 133 is used to open and cover the welding base 131; The coil protection plate 132 is used to cover the surface of the coil 31, and the edge of the coil protection plate 132 is recessed inward to form an avoidance gap 1321, and the avoidance gap 1321 is used to avoid the connection between the coil 31 and the bus bar 32; The cover plate 133 is used to press the coil protection plate 132 against the surface of the coil 31 , and a relief area 1331 is provided on the surface of the cover plate 133 . The relief area 1331 is used to avoid the connection between the coil 31 and the bus bar 32 .

[0032] In order to realize automatic welding of inductors and solve the technical problems of existing manual welding in terms of quality control, efficiency and reliability, this technical solution proposes an inductor welding device, such as Figure 1 As shown, it includes a welding mechanism 1 for welding the inductor 3, and a quality detection mechanism 2 for detecting the welding quality of the welding mechanism 1, so as to take into account both the welding efficiency and quality of the welding equipment.

[0033] Specifically, the welding mechanism 1 of the present solution includes a mounting base 11 for mounting a first welding machine 14, a welding turntable 12 for rotating the inductor 3 into and out of a welding station (i.e., directly below the first welding machine 14), a welding tool 13 for fixing the inductor 3 to be welded, and a first welding machine 14 for performing welding operations on the connection between the coil 31 and the busbar 32.

[0034] The welding process of the welding equipment of this scheme is as follows: first, the inductor 3 to be welded is installed on the welding jig 13; then, the welding jig 13 with the inductor 3 to be welded is transferred to the bottom of the first welding machine 14 through the welding turntable 12, and the connection between the coil 31 and the bus 32 in the inductor 3 is welded; after the welding is completed, the welding jig 13 is transferred out of the first welding machine 14, and the welded inductor 3 is removed from the welding jig 13; finally, the welded inductor 3 is placed in the quality detection mechanism 2 to detect the welding quality of the inductor 3.

[0035] Furthermore, in order to improve the welding quality of the inductor 3 and ensure its long-term reliability, the present technical solution also proposes a welding tool 13 for fixing the inductor 3, such as Figure 2-5 As shown, it includes a welding base 131, a coil protection plate 132 and a cover plate 133, which can not only realize the effective fixation between the inductor 3 and the parts to be welded, but also protect the coil 31 to prevent the excessively high welding temperature from causing the insulation layer of the coil 31 of the inductor 3 to age or melt, or even damage the magnetic core 33 of the inductor 3.

[0036] The installation process of the welding tool 13 of the present scheme is as follows: first, the inductor 3 (magnetic core 33 and coil 31) to be welded is placed on the welding base 131; then, the coil protection plate 132 is covered on the surface of the coil 31 to prevent excessively high temperature from directly acting on the insulation layer of the coil 31, thereby causing aging or melting of the insulation layer of the coil 31, or even damaging the magnetic core 33 of the inductor 3; then, the bus 32 to be welded is placed on the top of the coil 31, and the bus 32 is connected to the lead-out end of the coil 31; finally, the cover plate 133 is closed, and the cover plate 133 can prevent the coil protection plate 132 from being displaced during the welding process, thereby effectively ensuring that the coil protection plate 132 plays a protective role on the coil 31.

[0037] It should be noted that the first welding machine 14 of the present solution is a conventional device in the art that can realize welding functions, and its structure will not be described in detail here.

[0038] Further explained, the welding base 131 includes a mounting platform 1311, a support block 1312 and a support column 1313; the mounting platform 1311 is detachably mounted on the welding turntable 12; the support block 1312 is protrudingly mounted on both sides of the middle of the mounting platform 1311, and the support block 1312 is used to abut against the magnetic core 33 of the inductor 3; two support columns 1313 are provided, the two support columns 1313 are protrudingly mounted on the mounting platform 1311, and the two support columns 1313 are located on the diagonal line of the mounting platform 1311, and the top ends of the two support columns 1313 are respectively used to abut against the column 34 of the inductor 3.

[0039] In one embodiment of the present technical solution, the welding base 131 includes a mounting platform 1311, a support block 1312 and a support column 1313; wherein the support block 1312 is used to support the magnetic core 33 of the inductor 3, and the support column 1313 is used to support the cylinder 34 of the inductor 3, which is beneficial to improving the installation stability of the inductor 3 on the welding base 131, with a simple structure and reliable performance.

[0040] It should be noted that, in order to facilitate the fixing of the inductor on some power supply equipment, a cylinder (usually made of metal) with a hole in the middle is generally arranged around the inductor, and the through holes in the middle of the cylinder are used to pass through the screws or bolts used for installation and fixing, so as to achieve the fixing of the inductor. In order to facilitate the protection and installation of the inductor, the cylinder and the magnetic core and coil of the inductor are generally connected by an injection molding body to ensure good electrical insulation. The specific structure refers to the Chinese invention patent "An Inductor with Temperature Detection" with publication number CN115769321A.

[0041] To further illustrate, the welding base 131 further includes a hinge seat 1314 and a locking seat 1315, and the hinge seat 1314 and the locking seat 1315 are respectively protrudingly mounted on both sides of the mounting platform 1311; One end of the cover plate 133 is hinged to the top end of the hinge seat 1314; A locking position 1332 is formed at the other end of the cover plate 133 , and the locking seat 1315 locks and unlocks the cover plate 133 through the locking position 1332 .

[0042] In addition, in order to facilitate the opening and closing of the cover 133, the present solution further provides a hinge seat 1314 and a locking seat 1315 on the welding base 131, and one end of the cover 133 is hinged to the top of the hinge seat 1314 to facilitate the swing of the cover 133 relative to the welding base 131, and the cover 133 is locked and unlocked by the locking seat 1315, which has a simple structure and is easy to operate.

[0043] To further illustrate, the locking seat 1315 includes a locking base 13151, an elastic member, a clamping block 13152 and a support beam 13153; The locking base 13151 is protrudingly installed on one side of the installation platform 1311; the clamping block 13152 is telescopically installed on the upper part of the inner wall of the locking base 13151 through the elastic member; the support beam 13153 is horizontally extended and protrudingly installed on the upper part of the inner wall of the locking base 13151, and the upper surface of the support beam 13153 is used to abut against the bottom surface of the cover plate 133; When the cover plate 133 is in a locked state, the blocking block 13152 passes through the locking position 1332 and blocks the edge of the locking position 1332 , and the bottom surface of the cover plate 133 abuts against the upper surface of the support beam 13153 .

[0044] In one embodiment, the locking seat 1315 of the present solution includes a locking base 13151, an elastic member (not marked in the figure), a clamping block 13152 and a support beam 13153. The cover plate 133 can be quickly unlocked and locked by the telescopic clamping block 13152, which is beneficial to improving the installation speed of the operator when installing the inductor 3 to be welded on the welding tool 13.

[0045] When the cover plate 133 is in the unlocked state, the cover plate 133 swings around the top end of the hinge seat 1314 as an axis.

[0046] When the cover plate 133 is in the locked state, Figure 4 As shown, the block 13152 passes through the locking position 1332 and clamps the edge of the locking position 1332 , and the bottom surface of the cover plate 133 abuts against the upper surface of the support beam 13153 .

[0047] To further explain, the welding tool 13 also includes a clamping sheet 134 , which is installed on the cover plate 133 and is disposed close to the avoidance area 1331 . The clamping sheet 134 is used to press the bus 32 against the surface of the coil 31 .

[0048] In another preferred embodiment of the present technical solution, the welding tool 13 is further provided with a clamping plate 134 for pressing the bus 32 against the surface of the coil 31 to prevent the bus 32 from being displaced during the rotation of the welding turntable 13, and to ensure that when the welding tool 13 is transferred to the bottom of the first welding machine 14, the connection between the bus 32 and the coil 31 is not changed, so as to ensure the welding quality.

[0049] To further explain, the welding tool 13 further includes a pressing glue 135 , which is protrudingly installed on the bottom surface of the pressing sheet 134 , and the pressing glue 135 is used to abut against the bus bar 32 .

[0050] As a better embodiment of the above embodiment, in this solution, a pressing glue 135 is protrudingly installed on the bottom surface of the pressing sheet 134 , and the elasticity of the pressing glue 135 is used to prevent the pressing sheet 134 from making hard contact with the inductor 3 to avoid damage to the inductor 3 .

[0051] Preferably, the material of the compression glue 135 of this solution is rubber, silicone, etc.

[0052] Further, the welding mechanism 1 further includes a second welder 15, the second welder 15 is fixedly mounted on the mounting seat 11, and the welding gun of the second welder 15 faces the upper surface of the welding turntable 2, and the second welder 15 is used to weld the connection between the NTC sensor of the inductor 3 and the NTC temperature signal transmission line 35; The first welding machine 14 and the second welding machine 15 are circumferentially installed on the mounting seat 11 at intervals.

[0053] Also referring to the Chinese invention patent "An inductor with temperature detection" with publication number CN115769321A, when a high-power inductor is working, the heating of the inductor coil and the internal magnetic core will cause the overall temperature of the inductor to rise. In order to accurately detect and control the working temperature of the inductor, it is also necessary to install temperature sensing devices such as NTC sensors on the surface of the inductor coil to realize the temperature detection of the inductor coil.

[0054] Therefore, in order to further improve the welding efficiency of the welding equipment, the present solution further provides a second welding machine 15 for welding the connection between the NTC sensor (not shown) of the inductor 3 and the NTC temperature signal transmission line 35 .

[0055] It should be noted that the second welding machine 15 of the present solution is a conventional device in the art that can realize welding functions, and its structure will not be described in detail here.

[0056] Further, the coil protection plate 132 has a plate surface with an avoidance position 1322, and the avoidance position 1322 is used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line 35; The avoidance area 1331 is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line 35 .

[0057] It should be noted that the installation of the NTC temperature signal transmission line 35 can be carried out in step (2), that is, first connecting the NTC temperature signal transmission line 35 to the NTC sensor of the inductor 3, and then covering the coil protection plate 132 on the surface of the coil 31.

[0058] Further explained, the quality inspection mechanism 2 includes a conveying device 21, a fixed tool 22 and a camera 23; the fixed tool 22 is installed on the top of the conveying device 21, and the fixed tool 22 can move along the extension direction of the conveying device 21; the camera 23 is installed at the end of the conveying device 21, and the camera 23 is used to shoot and obtain the solder accumulation height of the inductor 3.

[0059] In another embodiment of the present technical solution, Figure 1As shown, the quality inspection mechanism 2 of the present solution includes a conveying device 21, a fixed tool 22 and a camera 23. The fixed tool 22 is used to capture and obtain the solder accumulation height of the inductor 3 during the conveying process of the conveying device 21, thereby realizing the inspection of the welding quality of the inductor 3.

[0060] Preferably, the fixed tooling 22 of the present scheme includes a conveying platform, a support block and a support column; the conveying platform can move along the extension direction of the conveying device 21; the support block is protrudingly installed on both sides of the middle part of the conveying platform, and the support block is used to abut against the magnetic core 33; there are two support columns, the two support columns are protrudingly installed on the conveying platform, and the two support columns are located on the diagonal of the conveying platform, and the top ends of the two support columns are respectively used to abut against the column 34; and the conveying platform has the same structure as the installation platform 1311, the support block has the same structure as the support block 1312, and the support column has the same structure as the support column 1313.

[0061] It should be noted that the conveying device 21 and the camera of the present solution are conventional devices in the art that can realize corresponding functions, and their structures are not described in detail here.

[0062] A method for welding an inductor, using the welding device for the inductor, comprises the following steps: (1) If Figure 6 As shown, the inductor 3 to be welded is placed on the welding base 131; (2) If Figure 7 As shown, the NTC temperature signal transmission line 35 is connected to the NTC sensor of the inductor 3, and the coil protection plate 132 is covered on the surface of the coil 31; (3) If Figure 8 As shown, the busbar 32 is placed on the top of the coil 31, and the busbar 32 is connected to the lead-out end of the coil 31; (4) If Figure 2 As shown, the cover plate 133 is closed and the cover plate 133 is in a locked state; (5) The welding tool 13 of step (4) is transferred to the position directly below the first welding machine 14 through the welding turntable 12 to weld the connection between the coil 31 and the bus bar 32; (6) The welding tool 13 of step (5) is transferred to the position directly below the second welding machine 15 through the welding turntable 12, and the connection between the NTC sensor and the NTC temperature signal transmission line 35 is welded; (7) Fig. 9 As shown, the welding tool 13 of step (6) is transferred out of the second welding machine 15, and the cover plate 133 is opened and the coil protection plate 132 is removed; (8) The inductor 3 welded in step (7) is placed in the quality inspection mechanism 2 to inspect the welding quality of the inductor 3.

[0063] The technical solution also proposes a welding method using the above welding equipment, which has simple steps and strong operability, and is conducive to improving the welding efficiency of the inductor and ensuring the welding quality of the inductor.

[0064] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A welding device for an inductor, characterized in that: It includes a welding mechanism and a quality detection mechanism, wherein the feeding end of the quality detection mechanism is arranged close to the unloading end of the welding mechanism, and the quality detection mechanism is used to detect the welding quality of the inductor; The welding mechanism comprises a mounting seat, a welding turntable, a welding tool and a first welding machine; the welding turntable is mounted on the bottom of the mounting seat, and the welding turntable rotates with the mounting seat as an axis; a plurality of welding tools are provided, and a plurality of welding tools are circumferentially mounted at intervals on the top edge of the welding turntable, and the welding tool is used to fix the inductor to be welded; the first welding machine is fixedly mounted on the mounting seat, and the welding gun of the first welding machine faces the upper surface of the welding turntable, and the first welding machine is used to weld the connection between the coil and the busbar of the inductor; The welding tool comprises a welding base, a coil protection plate and a cover plate; the welding base is detachably mounted on the welding turntable, and the welding base is used to support the inductor to be welded; one end of the cover plate is hinged to one end of the welding base, and the cover plate is used to open and close the welding base; The coil protection plate is used to cover the surface of the coil, and the edge of the coil protection plate is recessed inward to form an avoidance gap, and the avoidance gap is used to avoid the connection between the coil and the busbar; The cover plate is used to press the coil protection plate against the surface of the coil, and a relief area is provided on the surface of the cover plate, and the relief area is used to avoid the connection between the coil and the bus bar.

2. The inductor welding device according to claim 1, characterized in that: The welding base includes a mounting platform, a support block and a support column; the mounting platform is detachably mounted on the welding turntable; the support blocks are protrudingly mounted on both sides of the middle part of the mounting platform, and the support blocks are used to abut against the magnetic core of the inductor; two support columns are provided, the two support columns are protrudingly mounted on the mounting platform, and the two support columns are located on the diagonal lines of the mounting platform, and the top ends of the two support columns are respectively used to abut against the cylindrical columns of the inductor.

3. The inductor welding device according to claim 2, characterized in that: The welding base further comprises a hinge seat and a locking seat, and the hinge seat and the locking seat are respectively protrudingly mounted on both sides of the mounting platform; One end of the cover plate is hinged to the top end of the hinge seat; The other end of the cover plate is provided with a locking position, and the locking seat locks and unlocks the cover plate through the locking position.

4. The inductor welding device according to claim 3, characterized in that: The locking seat comprises a locking base, an elastic member, a clamping block and a support beam; The locking base is protrudingly mounted on one side of the mounting platform; the clamping block is telescopically mounted on the upper portion of the inner wall of the locking base through the elastic member; the support beam is horizontally extended and protrudingly mounted on the upper portion of the inner wall of the locking base, and the upper surface of the support beam is used to abut against the bottom surface of the cover plate; When the cover plate is in a locked state, the clamping block passes through the locking position and clamps the edge of the locking position, and the bottom surface of the cover plate abuts against the upper surface of the support beam.

5. The inductor welding device according to claim 1, characterized in that: The welding tool also includes a pressing plate, which is installed on the cover plate and is arranged close to the avoidance area. The pressing plate is used to press the busbar against the surface of the coil.

6. The inductor welding device according to claim 5, characterized in that: The welding tool also includes a pressing glue, which is protrudingly installed on the bottom surface of the pressing sheet and is used to abut against the busbar.

7. The inductor welding device according to claim 1, characterized in that: The welding mechanism further includes a second welder, the second welder is fixedly mounted on the mounting seat, and a welding gun of the second welder faces the upper surface of the welding turntable, and the second welder is used to weld the connection between the NTC sensor of the inductor and the NTC temperature signal transmission line; The first welding machine and the second welding machine are circumferentially installed on the mounting seat at intervals.

8. The inductor welding device according to claim 7, characterized in that: The coil protection plate is provided with an avoidance position, and the avoidance position is used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line; The avoidance area is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line.

9. The inductor welding device according to claim 1, characterized in that: The quality inspection mechanism includes a conveying device, a fixed tool and a camera; the fixed tool is installed on the top of the conveying device, and the fixed tool can move along the extension direction of the conveying device; the camera is installed at the end of the conveying device, and the camera is used to shoot and obtain the solder accumulation height of the inductor.

10. A method for welding an inductor, characterized in that: The welding device using the inductor according to any one of claims 7 to 8 comprises the following steps: (1) Placing the inductor to be welded on the welding base; (2) Connecting the NTC temperature signal transmission line to the NTC sensor of the inductor, and covering the coil protection plate on the surface of the coil; (3) Place the busbar on top of the coil and connect the busbar to the lead-out end of the coil; (4) closing the cover and locking the cover; (5) The welding tool of step (4) is transferred to the bottom of the first welding machine through the welding turntable to weld the connection between the coil and the busbar; (6) The welding tool of step (5) is transferred to the bottom of the second welding machine through the welding turntable, and the connection between the NTC sensor and the NTC temperature signal transmission line is welded; (7) Transfer the welding tooling of step (6) out of the second welding machine, open the cover plate and remove the coil protection plate; (8) The inductor welded in step (7) is placed in the quality inspection mechanism to inspect the welding quality of the inductor.

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