Inductor production process

Abstract

The invention provides an inductor production process, and relates to the technical field of inductor production, and the inductor production process comprises the following steps: wrapping a first heat-shrinkable sleeve on a magnetic core column; winding a wire on the magnetic core column coated with the first heat-shrinkable sleeve to form an inductance coil; a second heat-shrinkable sleeve is sleeved outside the inductance coil; two insulating seats are arranged on the outer side of the inductance coil coated with the second heat-shrinkable sleeve, each insulating seat is provided with a mounting groove, and the inductance coil is clamped between the two mounting grooves; an insulating tape is adhered to one end of the inductance coil, and two pins of the inductance coil are led out from the other end of the inductance coil and extend towards one side deviating from the insulating tape; and the inductance coil pasted with the insulating tape is inserted into a magnetic core with an annular frame structure, two pins of the inductance coil extend out of an opening of the magnetic core, and the inductor is obtained. The invention aims to improve the production efficiency and the product quality of the inductor.

Description

Technical Field

[0001] The present invention relates to the technical field of inductor production, and in particular to an inductor production process. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only blocks the change of current. If there is no current flowing through the inductor, it will try to block the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected. Inductors are also called chokes, reactors, and dynamic reactors.

[0003] The manufacturing of common inductors is to use wires tightly wound around a toroidal magnetic core to form a coil. Because the wire is long, it must repeatedly pass through the through holes formed by the magnetic core during the winding process. Due to the limitations of the magnetic core structure, the winding process often needs to be done manually by workers. Manual winding is cumbersome and time-consuming, and the winding process is prone to damage to the wire. The individual differences and proficiency of the operators also have a great impact on the quality of the product. Therefore, the traditional method of making inductors has low production efficiency and the product quality cannot be guaranteed. Summary of the invention

[0004] The main purpose of the present invention is to propose an inductor production process, aiming to provide an inductor manufacturing method that effectively improves production efficiency.

[0005] To achieve the above object, the present invention provides an inductor production process, comprising the following steps:

[0006] Wrapping a first heat shrinkable sleeve on the magnetic core column;

[0007] Winding a conducting wire around the magnetic core column covered with the first heat shrinkable sleeve to form an inductor coil;

[0008] A second heat shrinkable sleeve is disposed outside the inductor coil;

[0009] Two insulating seats are arranged on the outer side of the inductor coil covered with the second heat shrinkable sleeve, the insulating seat has a mounting groove, and the inductor coil is clamped between the two mounting grooves;

[0010] An insulating tape is pasted on one end of the inductor coil, and two pins of the inductor coil are led out from the other end of the inductor coil and extend toward a side away from the insulating tape;

[0011] The inductor coil with the insulating tape attached thereto is inserted into a magnetic core having a ring-shaped frame structure, and two pins of the inductor coil extend out of the opening of the magnetic core to obtain an inductor.

[0012] In one embodiment, the inductor production process further comprises the step of: subjecting the inductor to a paint dipping and drying process.

[0013] In one embodiment, the step of subjecting the inductor to a paint dipping and drying process comprises:

[0014] Preparation of insulating varnish;

[0015] Placing the wound inductor coil on a paint-dipping tray;

[0016] Put the paint dipping tray into a vacuum paint dipping machine, and inject the prepared insulating paint into a liquid storage tank of the vacuum paint dipping machine;

[0017] The vacuum coating machine is closed, vacuumed to the maximum vacuum degree, and the insulating varnish in the liquid storage tank is injected into the vacuum coating machine to cover the inductor coil;

[0018] Adjust the vacuum dipping machine to reversely pressurize 1.5-2.0 atmospheres for a preset dipping time;

[0019] After the preset varnish dipping time is over, the varnish dipping tray is taken out and placed in the air, and left to stand, waiting for the insulating varnish on the surface of the inductor coil to drain;

[0020] Flip the inductor coil on the paint dipping tray to separate the inductor coil from the paint dipping tray, and sequentially load the paint dipping tray into the moving device;

[0021] Push the mobile device into the oven, set the drying temperature of the oven to 90-110° C., and continue the drying for a preset time;

[0022] After the drying time is over, the oven is closed and left to stand until the inductor coil cools to 60° C., and then the mobile device is pushed out to allow the inductor coil to cool naturally.

[0023] In one embodiment, after the step of placing the wound inductor coil on the paint dipping tray and before the step of placing the wound inductor coil on the paint dipping tray, the method further includes the following steps:

[0024] Placing the paint dipping tray on a moving device and pushing it into an oven;

[0025] The drying temperature of the oven is set to 60°C and the heating time is set to a preset time;

[0026] After the preset heating time is over, the paint dipping tray on the mobile device is placed into the vacuum paint dipping machine.

[0027] In one embodiment, the inductor production process further comprises the steps of:

[0028] The inductors after the varnish dipping and drying treatment are sequentially placed in the cutting station of the pin cutting device, wherein the pin cutting device comprises a machine platform and a fixing mechanism and a cutting mechanism provided on the machine platform;

[0029] driving the fixing mechanism to fix the inductor to the cutting station;

[0030] Driving the shearing mechanism to perform a shearing operation on the two pins of the inductor coil;

[0031] The inductor after the pin cutting is completed is taken out from the pin cutting device.

[0032] In one embodiment, the shearing mechanism includes a first cutter, a second cutter and a driving structure; the first cutter, the shearing station and the second cutter are spaced apart in the first direction, and the first cutter has two knife grooves at one end facing the second cutter; the second cutter has two knife heads corresponding to the two knife grooves at one end facing the first cutter; the driving structure is used to drive the first cutter and the second cutter to move toward or away from each other along the first direction, so that the two pins of the inductor coil located at the shearing station can be respectively confined in the two knife grooves, and the two knife heads can shear the two pins of the inductor coil together with the two knife grooves.

[0033] In one embodiment, the pin shearing device further comprises a material transfer track provided on the machine, the material transfer track is used to transport the inductor; the material transfer track forms a first through channel, a second through channel and a third through channel, the first through channel and the second through channel both extend along the second direction, the third through channel extends along the third direction and the two ends of the third through channel are respectively connected to the first through channel and the second through channel, and the shearing station is formed at one end of the third through channel close to the second through channel;

[0034] The magnetic core is a block-shaped structure, the two pins of the inductor coil are located at the diagonals of the block structure, the inductor goes straight in and out in the third straight-through channel, and the driving structure drives the first cutter and the second cutter to move at an angle of 45° relative to the second direction or the third direction.

[0035] In one embodiment, the inductor production process further comprises the steps of:

[0036] Fixing the inductor after the pins are cut to a base;

[0037] The two pins of the inductor are welded to the signal pins of the base.

[0038] In one embodiment, after the step of fixing the inductor to the base after the pins are cut and before the step of soldering the two pins of the inductor coil to the signal pins of the base, the method further includes the following steps:

[0039] Pour the tin liquid into the grooves of the tinning pool;

[0040] Placing the two pins of the inductor coil in the groove and continuing the tinning for a preset time;

[0041] After the preset tinning time is over, the inductor is taken out and placed in the air, and then left to stand, waiting for the tin liquid on the surfaces of the two pins of the inductor coil to drain.

[0042] In one embodiment, after the step of pouring the tin liquid into the groove of the tin plating pool and before the step of placing the two pins of the inductor coil in the groove and continuing the tin plating for a preset time, the method includes:

[0043] Starting the cleaning device so that the scraper of the cleaning device moves closely against the groove wall of the groove;

[0044] The impurities scraped from the groove by the scraper are collected into recovery boxes on both sides of the tin plating pool by using an adsorption device.

[0045] The manufacturing method of the inductor provided by the embodiment of the present invention, firstly, the use of heat shrink tubing can effectively fix the wire and the magnetic core column, avoid displacement or looseness during the production process, thereby improving the production efficiency. At the same time, the heat shrink tubing can also provide additional insulation protection, reduce the risk of coil short circuit or leakage, and improve the quality of the product; secondly, the provision of an insulating seat can make the inductor coil more stable during the installation process, avoid displacement or deformation of the coil, and ensure the quality of the product. The design of the insulating seat can also make the installation of the coil easier and faster, further improving the production efficiency; in addition, the setting of the insulating tape and the pins also helps to improve the quality of the product. The insulating tape can effectively prevent the short circuit between the coil and the magnetic core, ensure the safety and stability of the product, and the setting of the pins makes the product easier to connect to other circuits, improving the reliability and convenience of the product. In general, the inductor production process provided by the present invention improves the production efficiency and product quality through reasonable design and use of auxiliary materials, making the inductor more stable and reliable during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0047] Figure 1 A schematic structural diagram of a first embodiment of an inductor production process provided by the present invention;

[0048] Figure 2 A schematic structural diagram of a second embodiment of an inductor production process provided by the present invention;

[0049] Figure 3 This is a schematic structural diagram of a third embodiment of the inductor production process provided by the present invention.

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0055] The invention provides an inductor production process.

[0056] In the first embodiment of the present invention, Figure 1 As shown, the inductor production process includes:

[0057] S10: Wrapping a first heat shrinkable tube on the magnetic core column;

[0058] It should be noted that before installation, it is necessary to ensure that the surface of the magnetic core column is clean, free of dust and oil, select the appropriate first heat shrink tube material and size according to the size of the magnetic core column and the required protection level, use a hot air gun or other heating tools to heat the heat shrink tube to a softened state, and then evenly wrap the softened heat shrink tube on the magnetic core column to ensure that the first heat shrink tube fits tightly with the magnetic core column. In this way, the magnetic core column or coil can be protected from the influence of the external environment and the reliability and performance of the inductor can be improved.

[0059] It should be added that the insulation performance of heat shrink tubing is crucial to protecting electronic components and circuits. Heat shrink tubing with good insulation performance can prevent current leakage, avoid short circuits and electrical failures, and ensure the safe operation of circuits.

[0060] S20: Winding a conductive wire around the magnetic core column covered with the first heat shrinkable sleeve to form an inductor coil;

[0061] S30: arranging a second heat shrinkable sleeve on the outer sleeve of the inductor coil;

[0062] It should be noted that during installation, it is necessary to ensure that the surface of the inductor coil is clean, free of dust and oil, and select the appropriate material and size of the second heat shrink tubing according to the size of the inductor coil and the required protection level. Use a hot air gun or other heating tool to heat the heat shrink tubing to a softened state, and evenly wrap the softened heat shrink tubing on the inductor coil to ensure that the second heat shrink tubing fits tightly against the coil. Then allow the second heat shrink tubing to cool naturally or use a fan to accelerate cooling so that it solidifies.

[0063] It should be added that the insulation performance of heat shrink tubing is crucial to protecting electronic components and circuits. Heat shrink tubing with good insulation performance can prevent current leakage, avoid short circuits and electrical failures, and ensure the safe operation of circuits.

[0064] S40: disposing two insulating seats on the outer side of the inductor coil covered with the second heat shrinkable tube, wherein the insulating seats have a mounting groove, and the inductor coil is clamped between the two mounting grooves;

[0065] It should be noted that the material of the insulating seat should have good insulation performance and mechanical strength, be able to withstand the expected mechanical stress, and the size and shape of the mounting groove should match the size of the inductor coil to ensure that the inductor coil can be firmly installed on the insulating seat. In this way, the installation stability and mechanical strength of the inductor can be enhanced.

[0066] S50: sticking an insulating tape on one end of the inductor coil, and two pins of the inductor coil are led out from the other end of the inductor coil and extend toward a side away from the insulating tape;

[0067] S60: inserting the inductor coil with the insulating tape into a magnetic core with a ring-shaped frame structure, and extending two pins of the inductor coil out of the opening of the magnetic core to obtain an inductor.

[0068] The manufacturing of common inductors is to use wires tightly wound around a toroidal magnetic core to form a coil. Because the wire is long, it must repeatedly pass through the through holes formed by the magnetic core during the winding process. Due to the limitations of the magnetic core structure, the winding process often needs to be done manually by workers. Manual winding is cumbersome and time-consuming, and the winding process is prone to damage to the wire. The individual differences and proficiency of the operators also have a great impact on the quality of the product. Therefore, the traditional method of making inductors has low production efficiency and the product quality cannot be guaranteed.

[0069] The manufacturing method of the inductor provided by the embodiment of the present invention, firstly, the use of heat shrink tubing can effectively fix the wire and the magnetic core column, avoid displacement or looseness during the production process, thereby improving the production efficiency. At the same time, the heat shrink tubing can also provide additional insulation protection, reduce the risk of coil short circuit or leakage, and improve the quality of the product; secondly, the provision of an insulating seat can make the inductor coil more stable during the installation process, avoid displacement or deformation of the coil, and ensure the quality of the product. The design of the insulating seat can also make the installation of the coil easier and faster, further improving the production efficiency; in addition, the setting of the insulating tape and the pins also helps to improve the quality of the product. The insulating tape can effectively prevent the short circuit between the coil and the magnetic core, ensure the safety and stability of the product, and the setting of the pins makes the product easier to connect to other circuits, improving the reliability and convenience of the product. In general, the inductor production process provided by the present invention improves the production efficiency and product quality through reasonable design and use of auxiliary materials, making the inductor more stable and reliable during the production process.

[0070] In a second embodiment of the present invention, Figure 2 As shown, the inductor production process also includes the steps of:

[0071] S70: performing a paint dipping and drying process on the inductor.

[0072] It should be noted that the material of the dip varnish should have good insulation performance, temperature resistance and chemical corrosion resistance, and the temperature and time of the drying treatment should be determined according to the curing characteristics of the dip varnish to ensure that the dip varnish is fully cured. The dip varnish drying treatment can further improve the environmental resistance of the inductor, protect the internal structure, and sometimes provide additional electrical insulation and mechanical strength.

[0073] Furthermore, in order to improve the effectiveness of the paint dipping and drying process, step S70 includes:

[0074] S71: Preparation of insulating varnish;

[0075] It is known that insulating varnish is a coating used for electrical insulation. It can be solvent-based or solvent-free, used to protect electronic components from electrical breakdown and environmental erosion. The choice of insulating varnish depends on many factors, including the required insulation level, operating temperature, chemical stability, mechanical strength, etc. Such as epoxy resin insulating varnish or silicone rubber insulating varnish.

[0076] S72: placing the wound inductor coil on a paint dipping tray;

[0077] S73: placing the paint dipping tray into a vacuum paint dipping machine, and injecting the prepared insulating paint into a liquid storage tank of the vacuum paint dipping machine;

[0078] S74: closing the vacuum paint dipping machine, evacuating to a maximum vacuum degree, and injecting the insulating paint in the liquid storage tank into the vacuum paint dipping machine to cover the inductor coil;

[0079] It can be known that under a vacuum state, the insulating paint will quickly fill the gaps between the inductor coils and evenly cover the surface of the inductor coils. After the insulating paint covers the inductor coils, the vacuum degree is appropriately adjusted to ensure that the insulating paint can fully penetrate into the interior of the inductor coils.

[0080] S75: adjusting the reverse pressure of the vacuum dipping machine to 1.5-2.0 atmospheres for a preset dipping time;

[0081] It should be noted that reverse pressurization helps to penetrate the insulating varnish more evenly into the interior of the inductor coil and fill the gaps between the coils, thereby improving the overall insulation performance. In a vacuum state, bubbles are more easily expelled, avoiding the formation of bubbles inside the inductor coil, which helps to improve the quality and uniformity of the insulation layer. By controlling the reverse pressurization and immersion time, it can be ensured that the insulating varnish forms a uniform and solid layer on the surface and inside of the inductor coil, thereby improving the durability of the inductor.

[0082] S76: After the preset paint dipping time is over, the paint dipping tray is taken out and placed in the air, and left to stand, waiting for the insulating paint on the surface of the inductor coil to drain;

[0083] S77: flipping the inductor coil on the paint dipping tray to separate the inductor coil from the paint dipping tray, and sequentially loading the paint dipping tray into the moving device;

[0084] S78: Push the mobile device into the oven, set the drying temperature of the oven to 90-110° C., and continue the drying for a preset time;

[0085] It can be known that the setting of drying temperature and time helps the curing of insulating varnish, forms a strong and durable insulating layer, and improves the insulation performance of the inductor. Through appropriate drying conditions, the stress generated during the curing process of the insulating varnish can be reduced, avoiding deformation or cracking of the inductor during subsequent use.

[0086] S79: After the drying time is over, the oven is closed and left to stand until the inductor coil cools to 60° C., and the moving device is pushed out to allow the inductor coil to cool naturally;

[0087] It should be noted that natural cooling to 60°C can prevent the inductor coil from generating thermal stress due to a rapid drop in temperature, thereby reducing the risk of deformation or rupture of the coil, helping to gradually release the stress inside the inductor coil and improving the long-term stability of the product. The natural cooling process does not require human intervention, which can reduce the labor intensity of operators.

[0088] Furthermore, in order to pre-dry the paint dipping tray to ensure quality control during the paint dipping process, the following steps are further included after step S72 and before step S73:

[0089] S721: placing the paint dipping tray on a moving device and pushing it into the oven;

[0090] S722: Setting the drying temperature of the oven to 60° C. for a preset heating time;

[0091] S723: After the preset heating time is over, the paint dipping tray on the mobile device is placed into the vacuum paint dipping machine.

[0092] It should be noted that the paint tray may absorb moisture during the production process, and this moisture may affect the curing and performance of the insulating paint during the paint dipping process. Pre-drying can remove this moisture and ensure the uniform curing of the insulating paint during the paint dipping process. It can also ensure that the paint tray will not have an adverse effect on the curing of the insulating paint during the paint dipping process, thereby improving the insulation performance of the inductor. In addition, pre-drying the paint tray can also reduce the pre-treatment work of the paint tray during the paint dipping process, simplify the operation process, improve production efficiency, and ensure the stable quality of the inductor products.

[0093] In a third embodiment of the present invention, Figure 3 As shown, the inductor production process also includes the steps of:

[0094] S80: placing the inductors after the varnish dipping and drying treatment in a cutting station of a pin cutting device in sequence, wherein the pin cutting device comprises a machine platform and a fixing mechanism and a cutting mechanism provided on the machine platform;

[0095] S90: driving the fixing mechanism to fix the inductor to the cutting station;

[0096] S100: driving the shearing mechanism to perform a shearing operation on the two pins of the inductor coil;

[0097] S110: taking the inductor after the pin cutting is completed out of the pin cutting device.

[0098] It can be known that through precise cutting operations, the length of the inductor pins can be ensured to meet the design requirements, thereby improving the performance and reliability of the inductor. Using automated equipment for cutting operations can reduce errors caused by human operations and improve the consistency and accuracy of cutting.

[0099] Further, the shearing mechanism includes a first cutter, a second cutter and a driving structure; the first cutter, the shearing station and the second cutter are spaced apart in the first direction, and the first cutter is provided with two knife grooves at one end facing the second cutter; the second cutter is provided with two knife heads corresponding to the two knife grooves at one end facing the first cutter; the driving structure is used to drive the first cutter and the second cutter to move toward or away from each other along the first direction, so that the two pins of the inductor coil located at the shearing station can be respectively confined in the two knife grooves, and the two knife heads can jointly shear the two pins of the inductor coil with the two knife grooves.

[0100] It should be noted that in actual operation, the staff or the automated conveying system places the inductor to be cut on the cutting station of the machine to facilitate the subsequent fixing and cutting operations. Then the fixing mechanism is started to firmly fix the inductor on the cutting station. Then the driving structure drives the first cutter and the second cutter to move toward each other along the first direction, so that the two cutter heads enter the two cutter grooves respectively. When the cutter heads completely enter the cutter grooves, the driving structure continues to act, so that the first cutter and the second cutter continue to move toward each other, until the cutter heads and the cutter grooves work together to apply a shearing force to the two pins of the inductor. After the shearing is completed, the driving structure acts in the opposite direction, so that the first cutter and the second cutter move away from each other along the first direction and move away from the inductor pins. Finally, the fixing mechanism is released, and the cut inductor can be taken out or automatically conveyed to the next process. In this way, the shearing efficiency of the inductor can be improved, the labor intensity can be reduced, the work safety can be improved, the manual intervention can be reduced, the shearing accuracy can be improved, the product has strong adaptability, is easy to maintain and adjust, is energy-saving and environmentally friendly, and conforms to the development trend of industrial automation and intelligent manufacturing.

[0101] It should be supplemented that the fixing mechanism can be a push rod mechanism or a clamping mechanism.

[0102] Further, the pin shearing device also includes a material transfer track provided on the machine, the material transfer track is used to transport the inductor; the material transfer track forms a first through channel, a second through channel and a third through channel, the first through channel and the second through channel both extend along the second direction, the third through channel extends along the third direction and the two ends of the third through channel are respectively connected to the first through channel and the second through channel, and the shearing station is formed at one end of the third through channel close to the second through channel;

[0103] The magnetic core is a block-shaped structure, the two pins of the inductor coil are located at the diagonals of the block structure, the inductor goes straight in and out in the third straight-through channel, and the driving structure drives the first cutter and the second cutter to move at an angle of 45° relative to the second direction or the third direction.

[0104] It should be noted that the layout of the feed track allows the inductor to be transported between different channels to achieve positioning before shearing and discharge after shearing. In addition, the vertical layout of the feed channel, which is approximately "Z"-shaped, helps to optimize the layout of the equipment in space and save floor space. At the same time, the first direction is set at an angle to the second direction and the third direction. This is because most inductors are block-shaped structures, and the pins are located at the diagonal of the block structure. The inductor goes straight in and out of the third straight-through channel. Therefore, when the second and third directions are set vertically, in order to ensure the simplicity of alignment, the drive structure needs to drive the first cutter and the second cutter to move at an angle of ° relative to the second direction or the third direction to cut into place. Through the design of this feed track, the inductor can be automatically transferred from one process flow to the next process flow, which not only reduces manual intervention, but also improves the continuity and automation level of the production line. In addition, this design also helps to achieve efficient batch processing of inductors, improving overall production efficiency and capacity.

[0105] In a fourth embodiment of the present invention, the inductor production process further comprises the steps of:

[0106] S120: fixing the inductor after the pins are cut to a base;

[0107] S130: Solder the two pins of the inductor coil to the signal pins of the base.

[0108] Through the above steps, a reliable electrical connection can be ensured between the inductor and the base, thereby improving the performance and reliability of the inductor and helping to ensure the quality and performance of the inductor.

[0109] Furthermore, after step S120 and before step S130, the method further includes the following steps:

[0110] S121: pouring tin liquid into the groove of the tin plating pool;

[0111] S122: placing the two pins of the inductor coil in the groove, and continuing the tinning for a preset time;

[0112] S123: After the preset tinning time is over, the inductor is taken out and placed in the air, and then left to stand, waiting for the tin liquid on the surfaces of the two pins of the inductor coil to drain;

[0113] It should be noted that tin plating can increase the conductivity and surface smoothness of the pins, thereby improving the reliability of welding and reducing welding defects such as cold solder joints, etc. The tin layer can protect the pins from chemical corrosion in the environment and extend the service life of the inductor. Through the preset tin plating time and draining process, it can be ensured that each inductor pin has a uniform tin layer, improving the quality consistency of the product.

[0114] In one embodiment, after step S121 and before step S122, the method includes:

[0115] S1211: starting the cleaning device so that the scraper of the cleaning device moves closely against the groove wall of the groove;

[0116] It should be noted that the cleaning device can remove impurities in the groove, such as oxides, dust, etc., thereby improving the purity of the tin liquid and ensuring the quality of tin plating.

[0117] S1212: using an adsorption device to collect the impurities scraped from the groove by the scraper into recovery boxes on both sides of the tin plating pool.

[0118] It should be noted that collecting impurities into a recycling bin can reduce the impact of impurities in the tin solution on the environment and achieve resource recycling.

[0119] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An inductor production process, characterized in that: The following steps are involved: Wrapping a first heat shrinkable sleeve on the magnetic core column; Winding a conducting wire around the magnetic core column covered with the first heat shrinkable sleeve to form an inductor coil; A second heat shrinkable sleeve is disposed outside the inductor coil; Two insulating seats are arranged on the outer side of the inductor coil covered with the second heat shrinkable sleeve, the insulating seat has a mounting groove, and the inductor coil is clamped between the two mounting grooves; An insulating tape is pasted on one end of the inductor coil, and two pins of the inductor coil are led out from the other end of the inductor coil and extend toward a side away from the insulating tape; The inductor coil with the insulating tape attached thereto is inserted into a magnetic core having a ring-shaped frame structure, and two pins of the inductor coil extend out of the opening of the magnetic core to obtain an inductor.

2. The inductor production process according to claim 1, characterized in that: The inductor production process also includes the step of: subjecting the inductor to a paint dipping and drying process.

3. The inductor production process according to claim 2, characterized in that: The step of performing a paint dipping and drying process on the inductor comprises: Preparation of insulating varnish; Placing the wound inductor coil on a paint-dipping tray; Put the paint dipping tray into a vacuum paint dipping machine, and inject the prepared insulating paint into a liquid storage tank of the vacuum paint dipping machine; The vacuum paint dipping machine is closed, vacuumed to the maximum vacuum degree, and the insulating paint in the liquid storage tank is injected into the vacuum paint dipping machine to cover the inductor coil; Adjust the vacuum dipping machine to reverse pressurize 1.5-2.0 atmospheres for a preset dipping time; After the preset varnish dipping time is over, the varnish dipping tray is taken out and placed in the air, and left to stand, waiting for the insulating varnish on the surface of the inductor coil to drain; Flip the inductor coil on the paint dipping tray to separate the inductor coil from the paint dipping tray, and sequentially load the paint dipping tray into the moving device; Push the mobile device into the oven, set the drying temperature of the oven to 90-110° C., and continue the drying for a preset time; After the drying time is over, the oven is closed and left to stand until the inductor coil cools to 60° C., and then the mobile device is pushed out to allow the inductor coil to cool naturally.

4. The inductor production process according to claim 3, characterized in that: After the step of placing the wound inductor coil on the paint dipping tray and before the step of placing the wound inductor coil on the paint dipping tray, the method further includes the following steps: Placing the paint dipping tray on a moving device and pushing it into an oven; The drying temperature of the oven is set to 60°C for a preset heating time; After the preset heating time is over, the paint dipping tray on the mobile device is placed into the vacuum paint dipping machine.

5. The inductor production process according to claim 2, characterized in that: The inductor production process also includes the steps of: The inductors after the varnish dipping and drying treatment are sequentially placed in the cutting station of the pin cutting device, wherein the pin cutting device comprises a machine platform and a fixing mechanism and a cutting mechanism provided on the machine platform; driving the fixing mechanism to fix the inductor to the cutting station; Driving the shearing mechanism to perform a shearing operation on the two pins of the inductor coil; The inductor after the pin cutting is completed is taken out from the pin cutting device.

6. The inductor production process according to claim 5, characterized in that: The shearing mechanism includes a first cutter, a second cutter and a driving structure; the first cutter, the shearing station and the second cutter are spaced apart in the first direction, and the first cutter is provided with two knife grooves at one end facing the second cutter; the second cutter is provided with two knife heads corresponding to the two knife grooves at one end facing the first cutter; the driving structure is used to drive the first cutter and the second cutter to move toward or away from each other along the first direction, so that the two pins of the inductor coil located at the shearing station can be respectively confined in the two knife grooves, and the two knife heads can shear the two pins of the inductor coil together with the two knife grooves.

7. The inductor production process according to claim 6, characterized in that: The pin shearing device further comprises a material transfer track provided on the machine platform, the material transfer track is used to transport the inductor; the material transfer track forms a first through channel, a second through channel and a third through channel, the first through channel and the second through channel both extend along the second direction, the third through channel extends along the third direction and the two ends of the third through channel are respectively connected to the first through channel and the second through channel, and the shearing station is formed at one end of the third through channel close to the second through channel; The magnetic core is a block-shaped structure, the two pins of the inductor coil are located at the diagonals of the block structure, the inductor goes straight in and out in the third straight-through channel, and the driving structure drives the first cutter and the second cutter to move at an angle of 45° relative to the second direction or the third direction.

8. The inductor production process according to claim 5, characterized in that: The inductor production process also includes the steps of: Fixing the inductor after the pins are cut to a base; The two pins of the inductor are welded to the signal pins of the base.

9. The inductor production process according to claim 8, characterized in that: After the step of fixing the inductor after the pin cutting is completed to the base and before the step of welding the two pins of the inductor coil to the signal pins of the base, the method further includes the following steps: Pour the tin liquid into the grooves of the tinning pool; Placing the two pins of the inductor coil in the groove and continuing the tinning for a preset time; After the preset tinning time is over, the inductor is taken out and placed in the air, and then left to stand, waiting for the tin liquid on the surfaces of the two pins of the inductor coil to drain.

10. The inductor production process according to claim 9, characterized in that: After the step of pouring the tin liquid into the groove of the tin plating pool and before the step of placing the two pins of the inductor coil in the groove and continuing the tin plating for a preset time, the method includes: Starting the cleaning device so that the scraper of the cleaning device moves closely against the groove wall of the groove; The impurities scraped from the groove by the scraper are collected into recovery boxes on both sides of the tin plating pool by using an adsorption device.

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