A manufacturing method of an inductor coil tape

Abstract

This application relates to the field of inductor coil tapes, and particularly to an inductor coil tape and a manufacturing method thereof. It includes a tape body and a welding piece. The material of the tape body is plastic. The welding piece is assembled on the tape body and has electrical conductivity. This application has the effect of reducing the production cost of the inductor coil tape.

Description

Technical Field

[0001] The present application relates to the field of inductor coil tapes, and in particular to an inductor coil tape and a manufacturing method thereof. Background Art

[0002] An integrated inductor is an electronic component applied to electronic devices, which includes a magnetic core, a coil, and pole pieces. The coil is located inside the magnetic core, and there are two pole pieces. The two pole pieces are respectively welded to both ends of the coil. The pole pieces are used to increase the connection area between the coil and the circuit board, and a solder pad modification layer is provided on the surface of the pole pieces. The solder pad modification layer is commonly used to improve physical properties such as the conductivity and weather resistance of the pole pieces, so that the pole pieces can meet different inductor usage scenarios.

[0003] In the existing related technologies, in order to facilitate the rapid welding of the coil to the pole pieces, the pole pieces usually need to be cut from the tape. The tape includes a frame body and a welding part. The materials of the frame body and the welding part are both conductive materials such as copper, and the welding part is integrally connected to the frame body. The welding part is used to weld the coil, and the welding part needs to be cut in subsequent processes to form the pole pieces. Exemplarily, reference can be made to the attached drawings of the specification of the patent No. CN 216287915 U. Figure 1 .

[0004] In view of the above related technologies, the frame body of the tape needs to be discarded during the production process, and the area of the frame body is larger than that of the welding part, so that the waste cost and recycling cost generated by the discarded frame body are relatively high, increasing the production cost of the inductor coil tape. Summary of the Invention

[0005] In order to reduce the production cost of the inductor coil tape, the present application provides an inductor coil tape.

[0006] The inductor coil tape provided by the present application adopts the following technical solutions:

[0007] An inductor coil tape includes a tape body and welding pads. The material of the tape body is plastic, and the welding pads are assembled on the tape body and have conductivity.

[0008] By adopting the above technical solutions, by improving the currently integrated inductor coil into a tape body and welding pads that need to be assembled, the tape body that needs to be discarded is manufactured with a material with a lower cost and a thinner thickness, thereby reducing the production cost of the tape body and effectively reducing the cost wasted due to the discard of the tape body.

[0009] In addition, it is also convenient to improve the applicability of the tape body and facilitate the connection of welding pads of various specifications to the tape body. Furthermore, when it is necessary to produce tapes of different specifications to produce inductors of different specifications, only the corresponding part of the welding pads needs to be modified or produced, reducing the mold opening cost.

[0010] Optionally, the tape body includes a tape frame and reinforcing ribs. There are two tape frames, and a plurality of reinforcing ribs are provided. The plurality of reinforcing ribs are all located between the two tape frames, and the plurality of reinforcing ribs are distributed along the length direction of the tape frame, and the plurality of reinforcing ribs are integrally connected to the tape frame.

[0011] By adopting the above technical solution, it is beneficial to reduce the molding difficulty of the tape body, thereby reducing the production cost of the tape body.

[0012] Optionally, the welding piece is assembled to the tape body by a thermal anchoring process. The welding piece is provided with a thermal anchoring perforation, and the tape body is provided with a thermal anchoring protrusion. The thermal anchoring protrusion is inserted and fitted into the thermal anchoring perforation.

[0013] By adopting the above technical solution, it is beneficial to reduce the assembly cost of the welding piece, and enables the welding piece to be stably connected to the tape body, reducing the occurrence of shaking of the tape body during the assembly process.

[0014] Optionally, the number of the thermal anchoring protrusions is more than three, and the number of the thermal anchoring perforations is the same as the number of the thermal anchoring protrusions.

[0015] By adopting the above technical solution, it is convenient to position the welding piece, reducing the occurrence of the welding piece being skewed.

[0016] Optionally, the thermal anchoring protrusion is integrally connected to the tape body, and the thermal anchoring protrusion extends along the length direction of the tape body.

[0017] By adopting the above technical solution, it is beneficial to reduce the molding difficulty of the thermal anchoring protrusion, making the thermal anchoring protrusion easier to be formed by a single die-cutting process.

[0018] Optionally, the welding piece is provided with a solder tab modification layer, and the solder tab modification layer is coated on the surface of the welding piece by an electroplating process.

[0019] By adopting the above technical solution, it is beneficial to increase the quantity of the solder tab modification layer during a single electroplating process, thereby improving the coating efficiency of the solder tab modification layer.

[0020] A manufacturing method of an inductor coil tape for manufacturing the above inductor coil tape, comprising the following steps:

[0021] S1. Manufacture the tape body;

[0022] S2. Manufacture the welding piece;

[0023] S3. Assemble the welding piece to the tape body.

[0024] By adopting the above technical solution, it is beneficial to reduce the production cost.

[0025] Optionally, the step S2 includes the following steps:

[0026] S21. Cut and form the welding piece;

[0027] S22. Coat a solder pad modification layer on the surface of the welding piece by barrel plating.

[0028] By adopting the above technical solution, it is beneficial to improve the coating efficiency of the solder pad modification layer and reduce the material, efficiency and power losses caused by the need to electroplate the tape rack.

[0029] Optionally, in the step S3, the tape body needs to be placed in an assembly jig before assembly. The assembly jig includes a jig base and a jig movable block;

[0030] The jig base is provided with a base movable groove. The inner diameter of the top of the base movable groove is smaller than the inner diameter of the bottom of the base movable groove. The jig movable block is arranged in the base movable groove. The jig movable block is elastically connected to the jig base, and the top of the jig movable block is in contact with the top of the base movable groove through a swing inclined surface;

[0031] The swing inclined surface is inclined downward and outward towards the outside of the base movable groove. The top of the jig movable block is provided with an assembly plane for assembling the welding piece and the tape body.

[0032] By adopting the above technical solution, when assembling the welding piece, if the thermal anchor perforation is aligned with the thermal anchor protrusion, the elastic member makes the movable inclined surface of the jig movable block always tightly fit against the base inclined surface of the jig base, thereby ensuring the assembly accuracy of the welding piece.

[0033] If the thermal anchor perforation is not aligned with the thermal anchor protrusion, the welding piece will tightly fit against one side of the thermal anchor protrusion and generate an eccentric force, causing the tape body and the jig movable block to move downward together and tilt to one side. After the jig movable block tilts, the thermal anchor protrusion will more easily slide into the thermal anchor perforation. Furthermore, when the thermal anchor perforation is not aligned with the thermal anchor protrusion, the welding piece can still be assembled to the tape body, thereby reducing the requirement for high alignment accuracy and lowering the production line cost.

[0034] Optionally, the bottom of the jig movable block is provided with a thermal anchor positioning groove, and the jig base is provided with a thermal anchor positioning post. When the jig movable block is close to the bottom of the jig movable groove, the thermal anchor positioning post is inserted and fitted into the thermal anchor positioning groove.

[0035] By adopting the above technical solution, the jig movable block moves downward along the vertical direction to the bottom of the jig movable slot, so that the thermal anchor positioning post is inserted and fitted into the thermal anchor positioning slot, and further, the jig movable block, the tape body and the welding piece are kept stable and do not shake during the hot pressing process of the thermal anchor processing.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. By improving the currently integrally formed inductor coil into a tape body and a welding piece that need to be assembled, the tape body to be discarded is manufactured with materials having lower costs and thinner thicknesses, thereby reducing the production cost of the tape body and effectively reducing the cost wasted due to the discard of the tape body;

[0038] In addition, it is also convenient to improve the applicability of the tape body and to connect welding pieces of various specifications to the tape body. Furthermore, when it is necessary to produce tapes of different specifications to produce inductors of different specifications, only the corresponding part of the welding piece needs to be modified or produced, reducing the mold opening cost;

[0039] 2. It is beneficial to reduce the forming difficulty of the tape body, thereby reducing the production cost of the tape body;

[0040] 3. It is beneficial to reduce the assembly cost of the welding piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is an overall schematic diagram of the inductor coil tape of Embodiment 1 of the present application.

[0042] Figure 2 is an exploded schematic diagram of the inductor coil tape of Embodiment 1 of the present application.

[0043] Figure 3 is a partial schematic diagram of the tape body of Embodiment 1 of the present application.

[0044] Figure 4 is an overall schematic diagram of the welding piece of Embodiment 1 of the present application.

[0045] Figure 5 is a partial schematic diagram of the tape body of Embodiment 2 of the present application.

[0046] Figure 6 is an overall schematic diagram of the welding piece of Embodiment 2 of the present application.

[0047] Figure 7 is an overall schematic diagram of the tape sheet of Embodiment 2 of the present application.

[0048] Figure 8 is an overall schematic diagram of the solder sheet of Embodiment 3 of the present application.

[0049] Figure 9 It is a schematic diagram of the implementation state of the strip assembly jig in Embodiment 4 of the present application.

[0050] Explanation of the reference numerals: 1. Strip body; 11. Strip frame; 111. Thermal anchor protrusion; 12. Reinforcing rib; 2. Welding piece; 201. Thermal anchor perforation; 3. Strip plate; 31. Thermal anchor rib; 4. Welding piece plate; 401. First welding piece part; 402. Second welding piece part; 403. Third welding piece part; 5. Jig base; 501. Base movable groove; 51. Elastic member; 52. Counter-pressure part; 53. Thermal anchor positioning column; 6. Jig movable block; 601. Assembly groove; 602. Thermal anchor positioning groove; 7. Swing inclined plane. Specific implementation manners

[0051] The following further describes the present application in detail with reference to the Figures 1-9 accompanying drawings.

[0052] Embodiment 1:

[0053] Embodiment 1 of the present application discloses an inductance coil strip. Refer to Figure 1 and Figure 2 . The inductance coil strip includes a strip body 1 and a plurality of welding pieces 2.

[0054] The material of the strip body 1 is a low-cost material, such as metals and their alloys with large production and simple processing, such as iron and aluminum, or plastics such as PE (Polyethylene) and PS (Polystyrene), so as to reduce the production cost of the strip body 1, and reduce the recycling burden and waste gas burden of the strip body 1. In addition, in order to further reduce the production cost of the strip body 1, the thickness of the strip body 1 can be appropriately reduced so that the thickness of the strip body 1 is less than the thickness of the welding piece 2, thereby reducing the material consumed by the strip body 1 during the production process.

[0055] Specifically, in Embodiment 1 of the present application, the material of the strip body 1 is PE to reduce the raw material cost and recycling cost.

[0056] Refer to Figure 3, the tape body 1 includes a tape frame 11 and reinforcing ribs 12. There are two tape frames 11, and the two tape frames 11 are arranged parallel to each other. There are several reinforcing ribs 12, and several reinforcing ribs 12 are all located between the two tape frames 11, and several reinforcing ribs 12 are distributed along the length direction of the tape frame 11. The length direction of the reinforcing ribs 12 is perpendicular to the length direction of the tape frame 11, and every two reinforcing ribs 12 and the two tape frames 11 are in a rectangular distribution, and the two ends of the reinforcing ribs 12 are integrally connected to the opposite sides of the two tape frames 11 respectively, so as to reduce the forming difficulty of the tape body 1. The tape body 1 can be produced by a punching process or a cutting process, so that the tape frame 11 and the reinforcing ribs 12 are formed together from the base material, reducing the processing cost.

[0057] Refer to Figure 1 and Figure 2 , several welding pads 2 are divided into two columns, and the two columns of welding pads 2 are distributed along the width direction of the tape body 1, and the two columns of welding pads 2 are both distributed along the length of the tape body 1. One welding pad 2 in one column is paired with one welding pad 2 in the other column, and the two paired welding pads 2 are respectively used for electrically connecting the two pins of the inductor coil.

[0058] The material of the welding pad 2 is a conductive material, such as metals and their alloys such as gold, silver, copper, aluminum, nickel, platinum, or composite materials with conductive properties such as conductive plastics, conductive rubbers, and conductive ceramics.

[0059] Specifically, in Embodiment 1 of the present application, the material of the welding pad 2 is copper.

[0060] The surface of the welding pad 2 is provided with a solder pad modification layer, and the solder pad modification layer is used to increase the physical properties of the welding pad 2. The number of the solder pad modification layers can be one layer or multiple layers, and the solder pad modification layer can be formed on the surface of the welding pad 2 by a brushing process or an electroplating process. Exemplarily, the solder pad modification layer can be: a silver plating layer for increasing the conductivity, a nickel oxide layer for increasing the weather resistance, or a DLC (Diamond-Like Carbon) coating for increasing the wear resistance.

[0061] Specifically, in Embodiment 1 of the present application, the solder pad modification layer is coated on the surface of the welding pad 2 by a barrel plating process, which is convenient for electroplating the solder pad modification layers of more welding pads 2 in a single electroplating process, reducing the occurrence of the continuous plating process with a small number of electroplated parts per single electroplating and low efficiency and high cost.

[0062] The welding piece 2 is assembled to the tape body 1. That is to say, the welding piece 2 and the tape frame body 11 are manufactured separately, and the welding piece 2 needs to be connected to the tape frame body 11 through an additional assembly process. The welding piece 2 can be permanently assembled to the tape body 1 to ensure the connection strength between the welding piece 2 and the tape body 1, thereby reducing the occurrence of the welding piece 2 falling off during the welding process of the inductor coil. On the contrary, the welding piece 2 can also be detachably assembled to the tape body 1 to make it more convenient for the welding piece 2 and the tape body 1 to be separated, thereby reducing the separation difficulty of the welding piece 2. The assembly method of the welding piece 2 and the tape body 1 should be appropriately adjusted according to the process to facilitate the reuse of the tape body 1, thereby reducing the loss caused during the process of replacing the specification of the welding piece 2.

[0063] Referring to Figure 3 , specifically, in Embodiment 1 of the present application, the welding piece 2 is permanently assembled to the tape frame body 11 through a thermal anchoring process. The tape frame body 11 is provided with a plurality of thermal anchoring protrusions 111. Every three of the plurality of thermal anchoring protrusions 111 are divided into a group, and each of the three thermal anchoring protrusions 111 in each group is used to connect each welding piece 2. The cross-section of the thermal anchoring protrusion 111 is circular, and one end of the thermal anchoring protrusion 111 is integrally and perpendicularly connected to the tape frame body 11. The end of the thermal anchoring protrusion 111 away from the tape frame body 11 is provided with a contraction end, and the contraction end can be in the shape of a frustum, a trapezoid or a dome, so as to facilitate the welding piece 2 to be aligned and inserted into the thermal anchoring protrusion 111. In addition, the three thermal anchoring protrusions 111 are linearly distributed along the length direction of the tape frame body 11 to reduce the area occupied by the thermal anchoring protrusions 111, and further reduce the area of the welding piece 2 that needs to be cut off in the subsequent process due to connection with the thermal anchoring protrusions 111, thereby reducing the waste loss of the welding piece 2.

[0064] [[ID=D8]]Referring to Figure 4 , the welding piece 2 is provided with three thermal anchoring through holes 201, and each of the three thermal anchoring through holes 201 is used for the corresponding thermal anchoring protrusion 111 to pass through. The inner diameter of the thermal anchoring through hole 201 matches the outer diameter of one end of the thermal anchoring protrusion 111 close to the tape frame body 11, so that after the thermal anchoring protrusion 111 passes through the thermal anchoring through hole 201, the welding piece 2 is not likely to shake, thereby reducing the adverse situation of virtual soldering caused by the offset of the solder joint position of the inductor coil.

[0065] In Embodiment 1 of the present application, in order to assemble the welding piece 2 to the tape body 1, first, the three thermal anchoring through holes 201 of the welding piece 2 need to be respectively aligned with the thermal anchoring protrusions 111, and then the welding piece 2 is moved in the direction close to the tape body 1, so that the contraction ends of the three thermal anchoring protrusions 111 respectively pass through and protrude from the thermal anchoring through holes 201. Finally, the protruding part of the thermal anchoring protrusion 111 needs to be hot-pressed by a thermal anchoring head, so that the protruding part of the thermal anchoring protrusion 111 melts and expands and forms an enlarged head with a diameter larger than the inner diameter of the thermal anchoring through hole 201 after cooling, thereby thermally anchoring the copper welding piece 2 to the plastic tape body 1.

[0066] In addition, when subsequently cutting the welding piece 2 and the coil from the tape body 1, the welding piece 2 should be cut from the side close to the coil, so that the tape body 1 is not likely to remain on the cut welding piece 2, reducing the subsequent need to spend production time on separating, screening, and peeling off the tape body 1 involved.

[0067] The implementation principle of Embodiment 1 of this application for an inductance coil tape is as follows: By improving the currently integrally formed inductance coil into two parts that need to be assembled, that is, the tape body 1 and the welding piece 2, the tape body 1 that needs to be discarded is manufactured with a lower-cost material and a thinner thickness, thereby reducing the production cost of the tape body 1 and effectively reducing the cost wasted due to the discard of the tape body 1. Moreover, it is also convenient to apply the inductance coil tape to the production of integrally formed inductors of different specifications by replacing welding pieces 2 of different specifications.

[0068] Embodiment 2:

[0069] The main difference between Embodiment 2 of this application, which discloses an inductance coil tape, and Embodiment 1 lies in the specific settings of the thermal anchor protrusion 111 and the thermal anchor perforation 201:

[0070] Referring to Figure 6 and Figure 7 , the thermal anchor protrusion 111 is arranged in a cuboid shape, and the thermal anchor protrusion 111 extends along the length direction of the tape frame body 11, and the surfaces at both ends of the thermal anchor protrusion 111 are flush with the side surfaces of the tape frame body 11. The thermal anchor perforation 201 is correspondingly arranged with the thermal anchor protrusion 111, and the thermal anchor perforation 201 also extends in a rectangular shape, and both ends of the thermal anchor perforation 201 extend to positions close to the side surfaces of the welding piece 2.

[0071] The tape frame body 11 is formed through a continuous extrusion process and a cutting process. Specifically, referring to Figure 7 , first, a long strip-shaped tape plate 3 is formed through a continuous extrusion process. The tape plate 3 is provided with thermal anchor ribs for forming the thermal anchor protrusion 111. There are two thermal anchor protrusions 111, and both ends extend to both ends of the tape plate 3. Subsequently, through the cutting process, the redundant parts of the tape frame body 11 are cut and hollowed out, so that the tape frame body 11 is formed from the tape plate 3. During the cutting process, the thermal anchor ribs will be synchronously cut into multiple segments of the thermal anchor protrusion 111, so that the thermal anchor protrusion 111 and the hollowed-out part of the tape frame body 11 are formed simultaneously, thereby enabling the rapid formation of the formed tape frame body 11 with a larger length dimension, reducing the forming difficulty of the thermal anchor protrusion 111, and thus reducing the manufacturing difficulty and cost of the tape frame body 11.

[0072] Embodiment 3:

[0073] Embodiment 3 of the present application discloses a manufacturing method for an inductor coil tape, which is used to manufacture the inductor coil tape described in Embodiment 1 or Embodiment 2:

[0074] S1. Manufacture the tape body 1.

[0075] The manufacturing process of the tape body 1 can be a cutting process and / or a die forming process.

[0076] S2. Manufacture the welding piece 2, including the following specific steps:

[0077] S21. Cut and form the welding piece 2.

[0078] The tape body 1 is cut and formed from the solder tab plate 4. The solder tab plate 4 is provided with a plurality of solder tab cutting areas, and the shapes of the plurality of solder tab cutting areas are all the same as the shape of the welding piece 2. Specifically, the solder tab cutting area is arranged in a "T" shape, and the solder tab cutting area includes a first solder tab portion 401, a second solder tab portion 402, and a third solder tab portion 403. The first solder tab portion 401 is arranged in a rectangle and is used to form the circuit board connection portion of the welding piece 2. The second solder tab portion 402 and the third solder tab portion 403 are both connected to the first solder tab portion 401, and the second solder tab portion 402 and the third solder tab portion 403 are located on the same side of the first solder tab portion 401. The second solder tab portion 402 is used to form the lead connection portion of the welding piece 2, and the third solder tab portion 403 is used to form the coil connection portion of the welding piece 2. The solder tab cutting area arranged in a "T" shape forms a plurality of convex areas and a plurality of concave areas. The convex areas and the concave areas of adjacent solder tab cutting areas are interspersed and close to each other to improve the cutting utilization rate of the solder tab plate 4 and further reduce the generation of waste.

[0079] Specifically, in Embodiment 3 of the present application, referring to Figure 8 , a plurality of solder tab cutting areas arranged in a "T" shape are distributed in a single-row linear shape, and the first solder tab portions 401 of two adjacent solder tab cutting areas are also distributed in a linear shape. The first solder tab portions 401 of adjacent solder tab cutting areas are interspersed and close to each other, and the first solder tab portions 401 of two adjacent solder tab cutting areas face two opposite directions along the width direction of the solder tab plate 4.

[0080] In order to cut the solder tab plate 4 of the solder tab cutting area into the welding piece 2 with a corresponding shape, cutting methods such as wire cutting, die cutting, or laser cutting can be used for cutting, so that a plurality of welding pieces 2 are cut and formed from the solder tab plate 4 in sequence or in batches. Preferably, in Embodiment 3 of the present application, the cutting process of the solder tab plate 4 is a continuous die cutting process.

[0081] S22. Electroplate and deposit a solder tab modification layer.

[0082] It is formed on the surface of the welding piece 2 through barrel plating process to facilitate increasing the number of welding pieces 2 in a single electroplating process, thereby improving the setting efficiency of the solder pad modification layer

[0083] S3. Assemble the welding piece 2 to the tape body 1, including the following specific steps:

[0084] S31. Convey the tape body 1 to the assembly plane.

[0085] The assembly plane is used to limit the tape body 1 to reduce the degree of freedom of the tape body 1, so that the tape body 1 remains stable during the assembly process.

[0086] S32. Convey the welding piece 2 to the position where the tape body 1 is located, align the thermal anchor protrusion 111 of the tape body 1 with the thermal anchor perforation 201 of the welding piece 2, and then insert the thermal anchor protrusion 111 through the thermal anchor perforation 201, so that the welding piece 2 is temporarily connected to the tape body 1.

[0087] Preferably, in Embodiment 3 of the present application, the welding piece 2 cut and formed from the solder pad sheet 4 is first conveyed to the flexible vibrating disk through a conveyor belt or a material channel, and is sorted and arranged through the flexible vibrating disk. Subsequently, the robot equipped with a vision system grabs and transfers the welding piece 2 to the position where the tape body 1 is located and aligns and inserts it. The parameters such as the degree of freedom of the robot should be specifically set according to the situation of the production line, and the robot can grab the welding piece 2 in a clamping and / or adsorption manner, and preferably in a vacuum adsorption manner.

[0088] S33. Thermally anchor the welding piece 2 to the tape body 1.

[0089] Embodiment 4:

[0090] Embodiment 4 of the present application discloses a tape assembly jig for implementing step S3 of the manufacturing method of the inductor coil tape described in Embodiment 3.

[0091] The tape assembly jig includes a jig base 5 and a jig movable block 6. A base movable groove 501 is opened at the top of the jig base 5. The top of the base movable groove 501 is open, and the inner diameter of the top of the base movable groove 501 is smaller than the inner diameter of the bottom of the base movable groove 501. The jig movable block 6 is located inside the base movable groove 501, and the jig movable block 6 is elastically connected to the jig base 5 through an elastic member 51. The elastic member 51 can be a spring, a reed and / or a rubber block, and in Embodiment 4 of the present application, the elastic member 51 is preferably a linear spring. The elastic member 51 is arranged in the vertical direction. The bottom of the elastic member 51 is fixedly connected to the jig base 5, and the top of the elastic member 51 is fixedly connected to the bottom of the jig movable block 6.

[0092] The top of the jig movable block 6 contacts the base movable groove 501 through a swinging inclined surface 7. The swinging inclined surface 7 can be arranged on the jig movable block 6 and / or the base movable groove 501, so that the jig movable block 6 is tightly fitted to the base movable groove 501 under normal conditions and gradually moves away from the base movable groove 501 under the action of an external force, so as to maintain stability under normal conditions and gradually increase the degree of freedom with the increase of the external force under the action of the external force.

[0093] Specifically, in Embodiment 4 of the present application, both the jig movable block 6 and the base movable groove 501 are provided with a swinging inclined surface 7. The swinging inclined surface 7 of the jig movable block 6 is set as a movable inclined surface, and the swinging inclined surface 7 of the base movable groove 501 is set as a base inclined surface. There are two movable inclined surfaces and two base inclined surfaces, and the two movable inclined surfaces and the two base inclined surfaces are respectively paired. The movable inclined surface and the base inclined surface are both inclined downward and outward from top to bottom, and both the jig movable block 6 and the base movable groove 501 are arranged in a frustum shape.

[0094] When the jig movable block 6 is in a normal state, only under the elastic force of the elastic member 51, the movable inclined surface is tightly fitted to the base inclined surface.

[0095] When the jig movable block 6 is under a vertical external force, the movable inclined surface gradually moves away from the base inclined surface in the vertical direction, so that the horizontal distance between the movable inclined surface and the base inclined surface gradually increases, and further the degree of freedom of the jig movable block 6 gradually increases and has a larger swinging space.

[0096] An assembly groove 601 is formed at the top of the jig movable block 6, and an assembly plane is arranged at the bottom of the assembly groove 601. The assembly groove 601 runs through the jig movable block 6 along the length direction thereof, so as to facilitate the tape body 1 of the tape frame 11 and the reinforcing rib 12 to pass through.

[0097] The top of the jig base 5 is provided with two anti-pressure portions 52, and the two anti-pressure portions 52 are distributed along the width direction of the jig base 5. When the tape body 1 passes through the assembly groove 601, the bottom of the jig base 5 is in abutting fit with the top of the tape body 1, so that the tape body 1 is not easily warped under the self-weight of the welding piece 2 and the pressing action of the thermal anchor head, resulting in the thermal anchor protrusion 111 being deflected and misaligned, and it is also beneficial to ensure that the tape body 1 moves together with the jig movable block 6 and reduce the occurrence of the tape body 1 shaking relative to the jig movable block 6.

[0098] When assembling the welding piece 2, if the thermal anchor perforation 201 is aligned with the thermal anchor protrusion 111, the elastic member 51 makes the movable inclined surface of the jig movable block 6 always tightly fit to the base inclined surface of the jig base 5, so as to ensure the assembly accuracy of the welding piece 2.

[0099] If the hot anchor perforation 201 is not aligned with the hot anchor protrusion 111, the welding piece 2 will be tightly fitted against one side of the hot anchor protrusion 111 and generate an eccentric force, causing the strip body 1 and the jig movable block 6 to move downward together and tilt to one side. After the jig movable block 6 tilts, the hot anchor protrusion 111 will more easily slide into the hot anchor perforation 201. Thus, when the hot anchor perforation 201 is not aligned with the hot anchor protrusion 111, the welding piece 2 can still be assembled to the strip body 1, thereby reducing the requirement for high alignment accuracy and lowering the production line cost.

[0100] A hot anchor positioning groove 602 is formed at the bottom of the jig movable block 6 and extends in the vertically upward direction. A hot anchor positioning post 53 is provided inside the base movable groove 501. The hot anchor positioning post 53 is arranged in the vertical direction and is used for plugging and mating with the hot anchor positioning groove 602.

[0101] When the hot anchor head does not contact the hot anchor protrusion 111, the hot anchor positioning post 53 is located outside the hot anchor positioning groove 602, enabling the jig movable block 6 to swing according to the alignment situation.

[0102] When the hot anchor head performs hot pressing on the hot anchor protrusion 111, the jig movable block 6 moves vertically downward to the bottom of the jig movable groove, causing the hot anchor positioning post 53 to be plugged and mated with the hot anchor positioning groove 602. Thus, the jig movable block 6, the strip body 1, and the welding piece 2 remain stable and do not shake during the hot pressing process of hot anchor processing, thereby ensuring the plugging accuracy, plugging applicability, and hot anchor accuracy of the strip assembly jig simultaneously.

[0103] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A manufacturing method of an inductor coil tape, characterized in that: For manufacturing an inductor coil strip, the inductor coil strip includes a strip body (1) and a welding piece (2). The material of the strip body (1) is plastic. The welding piece (2) is assembled on the strip body (1), and the welding piece (2) has electrical conductivity; The strip body (1) includes a strip frame body (11) and reinforcing ribs (12). There are two strip frame bodies (11). There are several reinforcing ribs (12). All the several reinforcing ribs (12) are located between the two strip frame bodies (11), and the several reinforcing ribs (12) are distributed along the length direction of the strip frame body (11), and all the several reinforcing ribs (12) are integrally connected to the strip frame body (11); The welding piece (2) is assembled on the strip body (1) by a thermal anchoring process. The welding piece (2) is provided with a thermal anchoring perforation (201), and the strip body (1) is provided with a thermal anchoring protrusion (111). The thermal anchoring protrusion (111) is inserted and fitted into the thermal anchoring perforation (201); The manufacturing method of the inductor coil strip includes the following steps: S1. Manufacture the strip body (1); S2. Manufacture the welding piece (2); S3. Assemble the welding piece (2) to the strip body (1); In the S3 step, the strip body (1) needs to be placed on an assembly jig before assembly. The assembly jig includes a jig base (5) and a jig movable block (6); The jig base (5) is provided with a base movable groove (501). The inner diameter of the top of the base movable groove (501) is smaller than the inner diameter of the bottom of the base movable groove (501). The jig movable block (6) is arranged in the base movable groove (501). The jig movable block (6) is elastically connected to the jig base (5), and the top of the jig movable block (6) is in contact with the top of the base movable groove (501) through a swing inclined surface (7); The swing inclined surface (7) is inclined downward and outward towards the outside of the base movable groove (501). The top of the jig movable block (6) is provided with an assembly plane for assembling the welding piece (2) and the strip body (1); The bottom of the jig movable block (6) is provided with a thermal anchoring positioning groove (602), and the jig base (5) is provided with a thermal anchoring positioning post (53). When the jig movable block (6) is close to the bottom of the jig movable groove, the thermal anchoring positioning post (53) is inserted and fitted into the thermal anchoring positioning groove (602).

2. The manufacturing method of an inductor coil tape according to claim 1, characterized in that: The number of the thermal anchoring protrusions (111) is more than three, and the number of the thermal anchoring perforations (201) is the same as the number of the thermal anchoring protrusions (111).

3. The manufacturing method of an inductor coil strip according to claim 1, characterized in that: The thermal anchoring protrusions (111) are integrally connected to the strip body (1), and the thermal anchoring protrusions (111) extend along the length direction of the strip body (1).

4. The manufacturing method of an inductance coil strip according to claim 1, characterized in that: The welding piece (2) is provided with a welding piece modification layer, and the welding piece modification layer is coated on the surface of the welding piece (2) by an electroplating process.

5. A manufacturing method of an inductor coil strip according to claim 1, characterized in that: The S2 step includes the following steps: S21. Cut and form the welding piece (2); S22. Coat the welding piece modification layer on the surface of the welding piece (2) by a barrel plating process.

Images