A welding device and method for an inductor

Abstract

The present invention relates to the technical field of sensor production equipment, and discloses a welding device and method for an inductor. Among them, the welding device includes a welding mechanism and a quality inspection mechanism. The welding mechanism includes a mounting base, a welding turntable, a welding tooling and a first welder; the welding tooling includes a welding base, a coil protection plate and a cover plate; the welding base is detachably mounted on the welding turntable, one end of the cover plate is hinged to one end of the welding base, and the cover plate is used to open and cover the welding base; the coil protection plate is used to cover the surface of the coil, and a relief notch is recessed inward at the edge of the coil protection plate, and the relief notch is used to avoid the connection between the coil and the bus bar; the cover plate is used to press the coil protection plate against the surface of the coil. This solution can be used to realize the automatic welding of inductors, with a simple structure and high reliability, and can effectively solve the technical problems in quality control, efficiency and reliability of existing manual welding.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor production equipment, and particularly to a soldering device and method for inductors. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. Generally, it includes a magnetic core and a coil wound around the surface of the magnetic core. Inductors are used to impede changes in current. If there is no current passing through the inductor, when the circuit is turned on, it will attempt to impede the current from passing through. And if there is current passing through, when the circuit is turned off, the inductor will attempt to maintain the current unchanged, also known as a reactor.

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

[0004] In the prior art, the bus bar is generally connected to the lead-out end of the inductor by manual soldering. This method has a firm connection and can withstand a large current. However, the manual soldering method has many drawbacks in terms of quality control, efficiency, and reliability. For example: First, the accuracy and consistency of manual soldering are poor, and problems such as false soldering, pseudo soldering, and solder ball accumulation are likely to occur. These problems will lead to poor conductivity of the solder joints and affect the performance and reliability of the inductor. Second, when manually soldering, it is difficult to precisely control the temperature, and situations of too high or too low temperature are likely to occur: too high temperature may cause the coil insulation layer of the inductor to age or melt, and even damage the magnetic core of the inductor; while too low temperature may cause the solder to not fully melt, forming an insecure connection. Third, the manual soldering speed is slow and it is difficult to meet the requirements of large-scale production; at the same time, during the manual soldering process, it is necessary to frequently adjust the soldering parameters and operating postures, further reducing the production efficiency. Fourth, the strength of the solder joints in manual soldering is usually low and is likely 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 a highly reliable inductor soldering device to achieve automatic soldering of inductors and solve the technical problems that occur in the existing manual soldering in terms of quality control, efficiency, and reliability. Summary of the Invention

[0006] The object of the present invention is to provide a soldering device for inductors, which is used to achieve automatic soldering of inductors, has a simple structure and high reliability, can effectively solve the technical problems that occur in the existing manual soldering in terms of quality control, efficiency, and reliability, and overcome the deficiencies in the prior art.

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

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] A soldering equipment for an inductor, comprising a soldering mechanism and a quality inspection mechanism. The feeding end of the quality inspection mechanism is arranged close to the discharging end of the soldering mechanism. The quality inspection mechanism is used for inspecting the soldering quality of the inductor.

[0010] The soldering mechanism includes a mounting base, a soldering turntable, a soldering tooling and a first soldering machine. The soldering turntable is installed at the bottom of the mounting base, and the soldering turntable rotates with the mounting base as the axis. A plurality of the soldering toolings are provided, and the plurality of soldering toolings are circumferentially installed at intervals on the top edge of the soldering turntable. The soldering tooling is used for fixing the inductor to be soldered. The first soldering machine is fixedly installed on the mounting base, and the welding torch of the first soldering machine faces the upper surface of the soldering turntable. The first soldering machine is used for soldering the connection between the coil and the busbar of the inductor.

[0011] The soldering tooling includes a soldering base, a coil protection plate and a cover plate. The soldering base is detachably installed on the soldering turntable. The soldering base is used for supporting the inductor to be soldered. One end of the cover plate is hinged to one end of the soldering base, and the cover plate is used for opening and closing the soldering base.

[0012] The coil protection plate is used for covering the surface of the coil, and an avoidance notch is recessed inward at the edge of the coil protection plate. The avoidance notch is used for avoiding the connection between the coil and the busbar.

[0013] The cover plate is used for pressing the coil protection plate against the surface of the coil, and an avoidance area is provided on the plate surface of the cover plate. The avoidance area is used for avoiding the connection between the coil and the busbar.

[0014] Preferably, the soldering base includes a mounting platform, a support block and a support column. The mounting platform is detachably installed on the soldering turntable. The support block is prominently installed on both sides of the middle of the mounting platform, and the support block is used for abutting against the magnetic core of the inductor. Two support columns are provided. The two support columns are prominently installed on the mounting platform, and the two support columns are located on the diagonal line of the mounting platform. The tops of the two support columns are respectively used for abutting against the cylindrical column of the inductor.

[0015] Preferably, the soldering base further includes a hinge seat and a locking seat. The hinge seat and the locking seat are respectively prominently installed on both sides of the mounting platform.

[0016] One end of the cover plate is hinged to the top end of the hinge seat;

[0017] 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.

[0018] Preferably, the locking seat comprises a locking base, an elastic member, a clamping block and a support beam;

[0019] 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;

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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;

[0024] The first welding machine and the second welding machine are circumferentially installed on the mounting seat at intervals.

[0025] 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;

[0026] The avoidance area is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line.

[0027] 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.

[0028] A welding method for an inductor, using the welding equipment for the above-mentioned inductor, includes the following steps:

[0029] (1) Place the inductor to be welded on the welding base;

[0030] (2) Connect the NTC temperature signal transmission line to the NTC sensor of the inductor, and cover the coil protection plate on the surface of the coil;

[0031] (3) Place the busbar on top of the coil and connect the busbar to the lead-out end of the coil;

[0032] (4) Close the cover plate and make the cover plate in a locked state;

[0033] (5) Transfer the welding tooling in step (4) under the direct bottom of the first welder through the welding turntable, and weld the connection between the coil and the busbar;

[0034] (6) Transfer the welding tooling in step (5) under the direct bottom of the second welder through the welding turntable, and weld the connection between the NTC sensor and the NTC temperature signal transmission line;

[0035] (7) Transfer the welding tooling in step (6) out of the second welder, and open the cover plate and remove the coil protection plate;

[0036] (8) Place the inductor welded in step (7) on the quality inspection mechanism to inspect the welding quality of the inductor.

[0037] The technical solution provided by the present invention may include the following beneficial effects:

[0038] 1. The welding equipment of this solution includes a welding mechanism for welding the inductor and a quality inspection mechanism for inspecting the welding quality of the welding mechanism, so as to take into account both the welding efficiency and quality of the welding equipment.

[0039] 2. In order to improve the welding quality of the inductor and ensure its reliability in long-term use, this technical solution also proposes a welding tooling for fixing the inductor, including a welding base, a coil protection plate and a cover plate. In addition to effectively fixing between the inductor and its parts to be welded, it can also protect the coil to prevent the coil insulation layer of the inductor from aging or melting due to excessive welding temperature, and even damage the magnetic core of the inductor. Brief Description of the Drawings

[0040] Figure 1 It is a schematic structural diagram of a welding equipment for an inductor of the present invention.

[0041] Figure 2It is a schematic structural diagram of a welding tooling in a welding device for an inductor of the present invention.

[0042] Figure 3 It is a schematic structural diagram of a welding base and a cover plate in a welding device for an inductor of the present invention.

[0043] Figure 4 It is a side view of a welding base and a cover plate in a welding device for an inductor of the present invention.

[0044] Figure 5 It is a schematic structural diagram of a coil protection plate in a welding device for an inductor of the present invention.

[0045] Figure 6 It is an installation schematic diagram of step (1) in a welding method for an inductor of the present invention.

[0046] Figure 7 It is an installation schematic diagram of step (2) in a welding method for an inductor of the present invention.

[0047] Figure 8 It is an installation schematic diagram of step (3) in a welding method for an inductor of the present invention.

[0048] Figure 9 It is an installation schematic diagram of step (7) in a welding method for an inductor of the present invention.

[0049] Wherein:

[0050] Welding mechanism 1, mounting base 11, welding turntable 12, welding tooling 13, welding base 131, mounting platform 1311, support block 1312, support column 1313, hinge seat 1314, locking seat 1315, locking base 13151, clamping block 13152, support beam 13153, coil protection plate 132, avoidance notch 1321, avoidance position 1322, cover plate 133, avoidance area 1331, locking position 1332, pressing piece 134, pressing glue 135, first welder 14, second welder 15;

[0051] Quality inspection mechanism 2, conveying device 21, fixing tooling 22, camera 23;

[0052] Inductor 3, coil 31, bus bar 32, magnetic core 33, cylinder column 34, NTC temperature signal transmission line 35. Specific embodiments

[0053] The technical solution of the present invention will be further described below through specific embodiments.

[0054] A welding device for an inductor, comprising a welding mechanism 1 and a quality inspection mechanism 2. The feeding end of the quality inspection mechanism 2 is arranged close to the discharging end of the welding mechanism 1. The quality inspection mechanism 2 is used for inspecting the welding quality of the inductor 3.

[0055] The welding mechanism 1 includes a mounting base 11, a welding turntable 12, a welding fixture 13 and a first welder 14. The welding turntable 12 is mounted at the bottom of the mounting base 11, and the welding turntable 12 rotates with the mounting base 11 as the axis. A plurality of welding fixtures 13 are provided, and the plurality of welding fixtures 13 are circumferentially mounted at intervals on the top edge of the welding turntable 12. The welding fixture 13 is used for fixing the inductor 3 to be welded. The first welder 14 is fixedly mounted on the mounting base 11, and the welding gun of the first welder 14 faces the upper surface of the welding turntable 2. The first welder 14 is used for welding the connection between the coil 31 and the bus bar 32 of the inductor 3.

[0056] The welding fixture 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 for supporting 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 for opening and closing the welding base 131.

[0057] The coil protection plate 132 is used for covering the surface of the coil 31, and an avoidance notch 1321 is recessed inward at the edge of the coil protection plate 132. The avoidance notch 1321 is used for avoiding the connection between the coil 31 and the bus bar 32.

[0058] The cover plate 133 is used for pressing the coil protection plate 132 against the surface of the coil 31, and an avoidance area 1331 is provided on the plate surface of the cover plate 133. The avoidance area 1331 is used for avoiding the connection between the coil 31 and the bus bar 32.

[0059] In order to realize the automatic welding of the inductor and solve the technical problems in quality control, efficiency and reliability of the existing manual welding, the present technical solution proposes a welding device for an inductor, as Figure 1 shown, including a welding mechanism 1 for welding the inductor 3 and a quality inspection mechanism 2 for inspecting the welding quality of the welding mechanism 1, so as to take into account both the welding efficiency and quality of the welding device.

[0060] Specifically, the welding mechanism 1 of this solution includes a mounting base 11 for installing the first welder 14, a welding turntable 12 for transferring the inductor 3 into and out of the welding station (i.e., directly below the first welder 14), a welding fixture 13 for fixing the inductor 3 to be welded, and a first welder 14 for welding the connection between the coil 31 and the bus bar 32.

[0061] The welding process of the welding equipment in this solution is as follows: First, install the inductor 3 to be welded on the welding fixture 13; then, use the welding turntable 12 to transfer the welding fixture 13 with the inductor 3 to be welded to directly below the first welder 14 and weld the connection between the coil 31 and the bus bar 32 in the inductor 3; after welding, transfer the welding fixture 13 out of the first welder 14 and remove the welded inductor 3 from the welding fixture 13; finally, place the welded inductor 3 on the quality inspection mechanism 2 to inspect the welding quality of the inductor 3.

[0062] Furthermore, in order to improve the welding quality of the inductor 3 and ensure its reliability during long-term use, this technical solution also proposes a welding fixture 13 for fixing the inductor 3, as Figures 2 - 5 shown, which includes a welding base 131, a coil protection plate 132, and a cover plate 133. In addition to effectively fixing the inductor 3 and its parts to be welded, it can also protect the coil 31 to prevent the insulation layer of the coil 31 of the inductor 3 from aging or melting due to excessive welding temperature, and even damage the magnetic core 33 of the inductor 3.

[0063] The installation process of the welding fixture 13 in this solution is as follows: First, place the inductor 3 (magnetic core 33 and coil 31) to be welded on the welding base 131; then, cover the coil protection plate 132 on the surface of the coil 31 to prevent excessive temperature from directly acting on the insulation layer of the coil 31, thereby causing the insulation layer of the coil 31 to age or melt, and even damage the magnetic core 33 of the inductor 3; then, place the bus bar 32 to be welded on the top of the coil 31 and connect the bus bar 32 to the lead-out end of the coil 31; finally, close the cover plate 133, which can prevent the coil protection plate 132 from shifting during the welding process and effectively ensure that the coil protection plate 132 protects the coil 31.

[0064] It should be noted that the first welder 14 in this solution is a conventional device in the field that can achieve the welding function, and its structure will not be elaborated here.

[0065] Further explanation, the welding base 131 includes an installation platform 1311, a support block 1312, and a support column 1313; the installation platform 1311 is detachably installed on the welding turntable 12; the support block 1312 is prominently installed on both sides of the middle of the installation platform 1311, and the support block 1312 is used to abut against the magnetic core 33 of the inductor 3; there are two support columns 1313, and the two support columns 1313 are prominently installed on the installation platform 1311, and the two support columns 1313 are located on the diagonal line of the installation platform 1311, and the tops of the two support columns 1313 are respectively used to abut against the cylinder column 34 of the inductor 3.

[0066] In an embodiment of the present technical solution, the welding base 131 includes an installation platform 1311, a support block 1312, and a support column 1313; among them, 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 column 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.

[0067] It should be noted that, in order to facilitate the fixation of the inductor on some power equipment, generally a cylinder column (usually made of metal) with a central opening is provided around the inductor, and the through holes in the middle of the cylinder column are all used to pass through screws or bolts for installation and fixation, so as to realize the fixation of the inductor. And in order to facilitate the protection and installation of the inductor, the cylinder column is generally connected to the magnetic core and coil of the inductor through an injection molding body to ensure good electrical insulation. For the specific structure, refer to the Chinese invention patent "An inductor with temperature detection" with the publication number CN115769321A.

[0068] Further explanation, 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 prominently installed on both sides of the installation platform 1311;

[0069] One end of the cover plate 133 is hinged to the top of the hinge seat 1314;

[0070] The other end of the cover plate 133 is provided with a locking position 1332, and the locking seat 1315 locks and unlocks the cover plate 133 through the locking position 1332.

[0071] In addition, in order to facilitate the opening and closing of the cover plate 133, the present solution also adds a hinge seat 1314 and a locking seat 1315 to the welding base 131, and one end of the cover plate 133 is hinged to the top of the hinge seat 1314, so as to facilitate the swing of the cover plate 133 relative to the welding base 131, and the locking seat 1315 locks and unlocks the cover plate 133, with a simple structure and convenient operation.

[0072] To further illustrate, the locking seat 1315 includes a locking base 13151, an elastic member, a clamping block 13152 and a support beam 13153;

[0073] 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;

[0074] 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 .

[0075] 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.

[0076] 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.

[0077] 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 .

[0078] 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 .

[0079] 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.

[0080] For further illustration, the welding tooling 13 further includes a pressing adhesive 135, which is prominently installed on the bottom surface of the pressing piece 134, and the pressing adhesive 135 is used to abut against the bus bar 32.

[0081] As a further optimization of the above embodiment, a pressing adhesive 135 is also prominently installed on the bottom surface of the pressing piece 134. The elasticity of the pressing adhesive 135 is utilized to avoid hard contact between the pressing piece 134 and the inductor 3, so as to prevent damage to the inductor 3.

[0082] Preferably, the pressing adhesive 135 in this solution is made of rubber, silicone, etc.

[0083] For further illustration, the welding mechanism 1 further includes a second welding machine 15, which is fixedly installed on the mounting base 11, and the welding torch of the second welding machine 15 faces the upper surface of the welding turntable 2. The second welding machine 15 is used to weld the connection between the NTC sensor of the inductor 3 and the NTC temperature signal transmission line 35;

[0084] The first welding machine 14 and the second welding machine 15 are circumferentially installed on the mounting base 11 at intervals.

[0085] Also referring to the Chinese invention patent "An Inductor with Temperature Detection" with the publication number CN115769321A, when a high-power inductor is working, the heat generated by 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, temperature sensing devices such as NTC sensors also need to be installed on the surface of the inductor coil to achieve temperature detection of the inductor coil.

[0086] Therefore, in order to further improve the welding efficiency of the welding equipment, a second welding machine 15 for welding the connection between the NTC sensor (not shown in the figure) of the inductor 3 and the NTC temperature signal transmission line 35 is added in this solution.

[0087] It should be noted that the second welding machine 15 in this solution is a conventional device in the field that can achieve the welding function, and its structure will not be elaborated here.

[0088] For further illustration, an avoidance position 1322 is formed on the plate surface of the coil protection plate 132, and the avoidance position 1322 is used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line 35;

[0089] The avoidance area 1331 is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line 35.

[0090] It should be noted that the NTC temperature signal transmission line 35 can be installed in step (2), that is, first connect the NTC temperature signal transmission line 35 to the NTC sensor of the inductor 3, and then cover the coil protection plate 132 on the surface of the coil 31.

[0091] Furthermore, the quality inspection mechanism 2 includes a conveying device 21, a fixing fixture 22, and a camera 23; the fixing fixture 22 is installed on the top of the conveying device 21, and the fixing fixture 22 can move along the extending 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 photograph and obtain the solder accumulation height of the inductor 3.

[0092] In another embodiment of the present technical solution, as Figure 1 shown, the quality inspection mechanism 2 of this solution includes a conveying device 21, a fixing fixture 22, and a camera 23. During the conveying process of the conveying device 21 by the fixing fixture 22, the solder accumulation height of the inductor 3 is photographed and obtained by the camera 23. Thereby, the welding quality of the inductor 3 is detected.

[0093] Preferably, the fixing fixture 22 of this solution includes a conveying platform, a supporting block, and a supporting column; the conveying platform can move along the extending direction of the conveying device 21; the supporting block is prominently installed on both sides of the middle of the conveying platform, and the supporting block is used to abut against the magnetic core 33; there are two supporting columns, and the two supporting columns are prominently installed on the conveying platform, and the two supporting columns are located on the diagonal line of the conveying platform, and the tops of the two supporting columns are respectively used to abut against the cylindrical column 34; and the conveying platform has the same structure as the installation platform 1311, the supporting block has the same structure as the support block 1312, and the supporting column has the same structure as the support column 1313.

[0094] It should be noted that the conveying device 21 and the camera in this solution are conventional devices in the art that can achieve the corresponding functions, and their structures will not be described in detail here.

[0095] A welding method for an inductor, using the above-mentioned inductor welding equipment, includes the following steps:

[0096] (1) As Figure 6 shown, place the inductor 3 to be welded on the welding base 131;

[0097] (2) As Figure 7 shown, connect the NTC temperature signal transmission line 35 to the NTC sensor of the inductor 3, and cover the coil protection plate 132 on the surface of the coil 31;

[0098] (3) AsFigure 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;

[0099] (4) If Figure 2 As shown, the cover plate 133 is closed and the cover plate 133 is in a locked state;

[0100] (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;

[0101] (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;

[0102] (7) Figure 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;

[0103] (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.

[0104] 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.

[0105] 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 soldering device for an inductor, characterized in that: It includes a welding mechanism and a quality inspection mechanism. The feeding end of the quality inspection mechanism is arranged close to the discharging end of the welding mechanism. The quality inspection mechanism is used to detect the welding quality of the inductor. The welding mechanism includes a mounting base, a welding turntable, welding jigs and a first welding machine. The welding turntable is installed at the bottom of the mounting base, and the welding turntable rotates with the mounting base as the axis. A plurality of welding jigs are provided, and the plurality of welding jigs are circumferentially installed at intervals on the top edge of the welding turntable. The welding jigs are used to fix the inductor to be welded. The first welding machine is fixedly installed on the mounting base, and the welding torch of the first welding machine faces the upper surface of the welding turntable. The first welding machine is used to weld the connection between the coil and the bus bar of the inductor. The welding jig includes a welding base, a coil protection plate and a cover plate. The welding base is detachably installed 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 cover the welding base. The coil protection plate is used to cover the surface of the coil, and an avoidance notch is recessed inward at the edge of the coil protection plate. The avoidance notch is used to avoid the connection between the coil and the bus bar. The cover plate is used to press the coil protection plate against the surface of the coil, and an avoidance area is provided on the plate surface of the cover plate. The avoidance area is used to avoid the connection between the coil and the bus bar. The welding mechanism further includes a second welding machine. The second welding machine is fixedly installed on the mounting base, and the welding torch of the second welding machine faces the upper surface of the welding turntable. The second welding machine is used to weld the connection between the NTC sensor and the NTC temperature signal transmission line of the inductor. The first welding machine and the second welding machine are circumferentially installed at intervals on the mounting base. The welding method of the welding equipment includes the following steps: (1) Place the inductor to be welded on the welding base. (2) Connect the NTC temperature signal transmission line to the NTC sensor of the inductor, and cover the coil protection plate on the surface of the coil. (3) Place the bus bar on the top of the coil and connect the bus bar to the lead-out end of the coil. (4) Close the cover plate and make the cover plate in a locked state. (5) Transfer the welding jig in step (4) under the first welding machine through the welding turntable to weld the connection between the coil and the bus bar. (6) Transfer the welding jig in step (5) under the second welding machine through the welding turntable to weld the connection between the NTC sensor and the NTC temperature signal transmission line. (7) Transfer the welding jig in step (6) out of the second welding machine, and open the cover plate and remove the coil protection plate. (8) Place the inductor welded in step (7) on the quality inspection mechanism to detect the welding quality of the inductor.

2. The soldering device for an inductor according to claim 1, characterized in that: The welding base includes an installation platform, a support block, and a support column; the installation platform is detachably installed on the welding turntable; the support block is prominently installed on both sides of the middle of the installation platform, and the support block is used to abut against the magnetic core of the inductor; there are two support columns, and the two support columns are prominently installed on the installation platform, and the two support columns are located on the diagonal line of the installation platform, and the tops of the two support columns are respectively used to abut against the cylindrical column of the inductor.

3. The welding device for an inductor according to claim 2, wherein: The welding base further includes a hinge seat and a locking seat, and the hinge seat and the locking seat are respectively prominently installed on both sides of the installation 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 soldering device for an inductor according to claim 3, wherein: The locking seat includes a locking base, an elastic member, a clamping block, and a support beam; The locking base is prominently installed on one side of the installation platform; the clamping block is telescopically installed on the upper part of the inner wall of the locking base through the elastic member; the support beam horizontally extends and is prominently installed on the upper part 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 the 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 welding device for an inductor according to claim 1, characterized in that: The welding tooling further includes a pressing piece, the pressing piece is installed on the cover plate, and the pressing piece is arranged close to the avoidance area, and the pressing piece is used to press the busbar against the surface of the coil.

6. The welding device for an inductor according to claim 5, characterized in that: The welding tooling further includes a pressing adhesive, the pressing adhesive is prominently installed on the bottom surface of the pressing piece, and the pressing adhesive is used to abut against the busbar.

7. The welding device for an inductor according to claim 1, characterized in that: The plate surface of the coil protection plate is provided with an avoidance position, and the avoidance position is used to avoid the connection part of the NTC sensor and the NTC temperature signal transmission line; The avoidance area is also used to avoid the connection part of the NTC sensor and the NTC temperature signal transmission line.

8. A soldering device for an inductor according to claim 1, characterized in that: The quality inspection mechanism includes a conveying device, a fixing tooling, and a camera; the fixing tooling is installed on the top of the conveying device, and the fixing tooling can move along the extending direction of the conveying device; the camera is installed at the end of the conveying device, and the camera is used to photograph and obtain the solder accumulation height of the inductor.

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