Inductor forming device

Abstract

The utility model discloses an inductor forming device, which comprises a forming main body, a pressing part, a pressing part and a pressing part, the forming main body comprises a main body part, and a protruding part is arranged at the top of the main body part and is used for supporting extruded powder; a forming groove is formed in the middle of the main body part and used for filling powder and containing a copper conductor, and a guide groove is formed in the bottom of the forming groove and used for reducing forming resistance. According to the utility model, the protruding part can provide a copper conductor placing space and support extruded powder, and can be far away from the end part of the copper conductor exposed after molding, and the molding groove and the guide groove can enable the filled powder to move towards the protruding part during molding, thereby reducing the resistance generated on the end surface during molding, effectively reducing the deformation displacement generated by the copper conductor, and prolonging the service life of the copper conductor. The problem of low yield caused by corner deformation of the copper conductor is solved; and secondary powder feeding is not needed during processing, and hot press molding can be completed only through one-time powder feeding, so that the process steps are effectively reduced, the processing difficulty is reduced, and automatic processing production is realized.

Description

Technical Field

[0001] This utility model relates to the field of inductor production equipment technology, specifically to an inductor forming device. Background Technology

[0002] An inductor is an electronic component that converts electrical energy into magnetic energy and stores it. It consists of a coil of wire. When current flows through the coil, it generates a magnetic field, thus storing energy. Inductors impede changes in current and are widely used in electronic circuits, such as for filtering, energy storage, and voltage transformation. Ultra-thin inductors are a special type of inductor, characterized by their small thickness, typically achieved through special design and manufacturing processes. While maintaining basic inductor performance, they can adapt to space-constrained applications, such as circuit boards in portable electronic devices like smartphones and tablets, contributing to the miniaturization and thinning of electronic devices.

[0003] Existing inductor production equipment requires filling a mold with powder before producing an inductor. Then, high-pressure powder molding is performed in the cavity to obtain the core. The core is then removed and combined with a copper conductor before being implanted into the mold cavity. Finally, powder is filled again for hot pressing. The entire production process is complex. Furthermore, when the core is combined with the copper conductor, the powder-containing part of the internal cavity will shift to the part without powder, causing severe deformation at the corners of the copper conductor. This results in low yield and low production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an inductor forming device in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] A molding body, the molding body including a main body part, the top of the main body part being provided with a protrusion, the protrusion being used to support the extruded powder;

[0007] A forming groove is provided in the middle of the main body. The forming groove is used to fill powder and accommodate copper conductors. A guide groove is provided at the bottom of the forming groove to reduce forming resistance.

[0008] As a further description of the above technical solution, the protrusion includes a flush portion, which includes a low flush portion and a high flush portion.

[0009] As a further description of the above technical solution, the end faces of the low-level flush portion and the high-level flush portion are parallel to each other, and the height of the high-level flush portion is higher than the height of the low-level flush portion.

[0010] As a further description of the above technical solution, a gradient portion is provided between the flush portions, and the gradient portion is connected to the flush portions by a smooth arc transition.

[0011] As a further description of the above technical solution, the forming groove is a trapezoidal groove, and the top width of the forming groove is greater than the bottom width.

[0012] As a further description of the above technical solution, the angle between the slope of the forming groove and the bottom of the main body is 95-100°.

[0013] As a further description of the above technical solution, the guide groove is a conical groove, and the width of the guide groove is smaller than the width of the trapezoidal groove.

[0014] As a further description of the above technical solution, the angle between the slope of the guide groove and the bottom of the main body is 100-105°.

[0015] As a further description of the above technical solution, the depth of the guide groove is 40-60% of the forming groove.

[0016] As a further description of the above technical solution, a stepped surface is provided between the guide groove and the forming groove.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, a protrusion is provided at the top of the main body, which can provide a space for the copper conductor to be placed and support the extruded powder, and can be away from the exposed end of the copper conductor after molding; the molding groove and guide groove opened inside the main body can allow the filled powder to move towards the protrusion during molding, reduce the resistance generated at the end face during molding, effectively reduce the deformation displacement of the copper conductor, and solve the problem of low yield caused by the deformation of the copper conductor corner;

[0019] 2. With this utility model, the entire device eliminates the need for secondary powder feeding during processing. Hot pressing can be completed with only one powder feeding, effectively reducing process steps, lowering processing difficulty, and realizing automated processing and production.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the inductor forming device of this utility model;

[0022] Figure 2 This is an exploded view of the inductor forming device of this utility model;

[0023] Figure 3This is a front view of the inductor forming device of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the main body of this utility model;

[0025] Figure 5 This is a front view of the molded main body of this utility model;

[0026] Figure 6 This is a top view of the molded main body of this utility model;

[0027] Figure 7 yes Figure 1 Enlarged view of section AA;

[0028] Figure 8 yes Figure 3 Enlarged diagram of section BB.

[0029] Figure label:

[0030] 1. Molding body; 11. Main body; 12. Protrusion; 121. Flat part; 1211. Low flat part; 1212. High flat part; 122. Gradient part; 13. Molding groove; 14. Guide groove; 15. Step surface; 2. Copper conductor; 3. Punch. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figures 1-8 As shown, in one embodiment, an inductor forming apparatus includes: a forming body 1; wherein, the forming body 1 mainly includes a main body portion 11, and a protrusion 12 is correspondingly provided on the top of the main body portion 11 for supporting the extruded powder; correspondingly, a forming groove 13 is provided in the middle of the main body portion 11 for filling the powder and accommodating the copper conductor 2; and a guide groove 14 is correspondingly provided at the bottom of the forming groove 13 for reducing the resistance of the powder during hot pressing.

[0033] Understandably, during the inductor forming process, after filling the powder and placing the copper conductor 2, hot pressing can be performed in one step using the punch 3. Compared to secondary powder feeding, this effectively reduces process steps, lowers processing difficulty, and enables automated production. Furthermore, as the punch 3 moves, the powder is gradually compacted and formed into a single unit with the copper conductor 2. During the stamping process, the components gradually move upwards from the bottom to fill the gaps without generating excessive pressure on the end face, effectively reducing the pressure generated at the end face during forming. Therefore, the hot pressing process can effectively solve the problem of deformation at the corners of the copper conductor 2, thereby effectively improving the yield rate.

[0034] Please continue reading. Figures 1-8 In this embodiment, the protrusion 12 includes a flush portion 121, which in turn includes a low flush portion 1211 on one side and a high flush portion 1212 on the other side. Specifically, the end faces of the low flush portion 1211 and the high flush portion 1212 are parallel to each other, and the height of the high flush portion 1212 is higher than the height of the low flush portion 1211.

[0035] Specifically, the volume of the protrusion 12 is equal to the volume of the molding body 1 minus the volume of the copper conductor 2. It is understandable that the volume of the protrusion 12 cannot be too large or too small: if the volume is too large, the density of the protrusion 12 will be insufficient, leading to free fall and causing some powder to fall onto the bottom surface of the copper conductor 2, thus rendering the product unusable; if the volume is too small, the amount of powder it can hold will be insufficient, causing deformation at the corners of the copper conductor 2.

[0036] It should be explained in detail that a gradient portion 122 is provided between the low-level portion 1211 and the high-level portion 1212, and the gradient portion 122 is connected to the low-level portion 1211 and the high-level portion 1212 by a smooth arc transition, so that after the hot pressing is completed, it can be far away from the end of the copper conductor 2 exposed after forming.

[0037] Please continue reading. Figures 1-8 In this embodiment, the forming groove 13 is a trapezoidal groove, and the top width of the forming groove 13 is greater than the bottom width; correspondingly, the guide groove 14 is a conical groove, and the width of the guide groove 14 is less than the width of the trapezoidal groove.

[0038] Specifically, the angle between the slope of the molding groove 13 and the bottom of the main body 11 is 95-100°, while the angle between the slope of the guide groove 14 and the bottom of the main body 11 is 100-105°, and the depth of the guide groove 14 is 40-60% of that of the molding groove 13.

[0039] It should be explained in detail that a stepped surface 15 is provided between the guide groove 14 and the forming groove 13, allowing the forming groove 13 to gradually transition to the guide groove 14 at the bottom. Understandably, the guide groove 14 reduces the surface area of ​​the end face, and during the hot pressing process, the powder moves upward under pressure, thus preventing excessive pressure on the end face and reducing forming resistance. Specifically, during processing, the greater the depth of the guide groove 14 and the smaller the slope angle, the lower the forming resistance, which can be determined according to the actual production requirements of the product.

[0040] Through the above technical solution, this application effectively reduces the deformation displacement of the copper conductor 2, solves the problem of low yield caused by the corner deformation of the copper conductor 2; and the whole device eliminates the need for secondary powder feeding during processing, and only one powder feeding is needed to complete the hot pressing molding, effectively reducing process steps, reducing processing difficulty, and realizing automated processing and production.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inductor forming apparatus, characterized in that, include: A molding body, the molding body including a main body part, the top of the main body part being provided with a protrusion, the protrusion being used to support the extruded powder; A forming groove is provided in the middle of the main body. The forming groove is used to fill powder and accommodate copper conductors. A guide groove is provided at the bottom of the forming groove to reduce forming resistance.

2. The inductor forming apparatus according to claim 1, characterized in that, The protrusion includes a flush portion, which includes a low flush portion and a high flush portion.

3. The inductor forming apparatus according to claim 2, characterized in that, The lower flush portion and the higher flush portion have parallel end faces, and the height of the higher flush portion is greater than the height of the lower flush portion.

4. The inductor forming apparatus according to claim 2, characterized in that, A gradient section is provided between the flush portions, and the gradient section is connected to the flush portions by a smooth arc transition.

5. The inductor forming apparatus according to claim 1, characterized in that, The forming groove is a trapezoidal groove, and the top width of the forming groove is greater than the bottom width.

6. The inductor forming apparatus according to claim 5, characterized in that, The angle between the slope of the molding groove and the bottom of the main body is 95-100°.

7. The inductor forming apparatus according to claim 1, characterized in that, The guide groove is a conical groove, and the width of the guide groove is smaller than the width of the trapezoidal groove.

8. The inductor forming apparatus according to claim 7, characterized in that, The angle between the slope of the guide groove and the bottom of the main body is 100-105°.

9. The inductor forming apparatus according to claim 1, characterized in that, The depth of the guide groove is 40-60% of the forming groove.

10. The inductor forming apparatus according to claim 9, characterized in that, A stepped surface is provided between the guide groove and the forming groove.

Images