Material channel feeding device for integrally-formed inductor

Abstract

The utility model relates to a material channel feeding device of an integrally-formed inductor. The material channel feeding device comprises a preparation mold, an upper punching needle assembly and a lower punching needle assembly. A horizontal material channel and a vertical material channel which are perpendicular to each other are formed in the preparation mold, the horizontal material channel comprises an inlet end and an outlet end, the outlet end of the horizontal material channel is communicated with the vertical material channel, the vertical material channel penetrates through the preparation mold, and the size of the horizontal material channel and the size of the vertical material channel are matched with the size of a prefabricated coil. The upper punching needle assembly is arranged at the upper end of the vertical material channel and is connected with the preparation mold; the lower punching needle assembly is arranged at the lower end of the vertical material channel and connected with the preparation mold. Due to the fact that the horizontal material channel and the vertical material channel which are perpendicular to each other are arranged, it can be guaranteed that the stress directions of the prefabricated coil and the magnetic powder are always in the vertical direction during pressing, the pressing effect can be improved, the size of the horizontal material channel and the size of the vertical material channel are the same as the size of the prefabricated coil, and the magnetic powder can keep the consistent shape during pressing; and therefore, the consistency of the shapes of the produced NR inductors is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of NR inductor preparation, in particular to a feeding device for a one-piece inductor on a material channel. Background Art

[0002] NR inductors have the following advantages: adopting a magnetic glue coating structure, greatly reducing the buzzing sound; directly metallizing the electrodes on the ferrite magnetic core, with strong anti-drop impact and long service life; a closed magnetic circuit structure design, less magnetic leakage and strong anti-EMI ability; under the same size conditions, the rated current is 30% higher than that of traditional power inductors; small volume, low profile, saving space and more power-saving; the application range of products: LED lighting; multifunctional mobile phones; flat-panel TVs; Blu-ray DVDs; set-top boxes; laptops, desktop computers, servers, graphics cards; portable, personal navigation systems, multimedia devices; the working temperature range of the products: -25 degrees Celsius to 120 degrees Celsius; the basic manufacturing process of NR inductors is to extrude a prefabricated coil and a magnetic block, and the magnetic block can be prefabricated from dry magnetic powder or wet magnetic powder.

[0003] In the prior art, when preparing NR inductors, hot pressing is usually used for preparation. However, during the preparation process, since the space of the cavity is larger than that of the prefabricated coil, during the pressing process of the prefabricated coil and the magnetic powder, the deformation of the magnetic powder is not controlled, resulting in differences in the shapes of the produced NR inductors, and the production efficiency of traditional preparation devices is relatively low. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a feeding device for a one-piece inductor on a material channel, aiming to solve the technical problem that the shapes of NR inductors produced by the existing feeding device for a one-piece inductor on a material channel are different.

[0005] To solve the above technical problems, a feeding device for a one-piece inductor on a material channel is provided, including:

[0006] A preparation mold, which is formed with a horizontal material channel and a vertical material channel arranged perpendicular to each other. The horizontal material channel includes an inlet end and an outlet end. The outlet end of the horizontal material channel is communicated with the vertical material channel. The vertical material channel penetrates through the preparation mold. The sizes of the horizontal material channel and the vertical material channel are adapted to the size of the prefabricated coil.

[0007] An upper punch needle assembly, which is arranged at the upper end of the vertical material channel and connected to the preparation mold;

[0008] A lower punch needle assembly, which is arranged at the lower end of the vertical material channel and connected to the preparation mold.

[0009] Furthermore, the preparation mold includes a mounting plate, a horizontal mold and a vertical mold, the mounting plate is formed with a horizontal mounting groove and a vertical mounting groove, the horizontal mold is arranged in the horizontal mounting groove, the vertical mold is arranged in the vertical mounting groove, the horizontal material channel is formed on the horizontal mold, and the vertical material channel is at least partially formed on the vertical mold.

[0010] Furthermore, the vertical material channel includes an inner material channel and an outer material channel, the inner material channel and the outer material channel are connected and their central axes coincide with each other, the inner material channel is formed on the horizontal mold, and the outer material channel is formed on the vertical mold.

[0011] Furthermore, the preparation mold also includes a powder filling plate and a driving member, the driving member is connected to the powder filling plate, a filling cavity is formed on the powder filling plate, and the driving member drives the powder filling plate to move along the X-axis direction to make the filling cavity approach or move away from the vertical material channel.

[0012] Furthermore, the material channel feeding device of the one-piece molded inductor also includes a powder feeding component, and the powder feeding component is connected to the filling cavity.

[0013] Furthermore, the upper punch assembly includes an upper driving component and an upper punch component, the upper punch component is connected to the upper driving component, and the upper driving component drives the upper punch component to move along the Z-axis direction so that the upper driving component at least partially enters the vertical material channel.

[0014] Furthermore, the upper punch assembly also includes a guide member, the guide member is connected to the upper driving component, and the powder filling plate is formed with a guide hole that cooperates with the guide member.

[0015] Furthermore, at least two horizontal material channels are provided, and the horizontal material channels are arranged in parallel with each other, and at least two vertical material channels are provided, and the vertical material channels are arranged in parallel with each other.

[0016] Further, the lower punch needle assembly includes a lower driving component and a lower punch needle component, the lower punch needle component is connected to the lower driving component, and the lower driving component drives the lower punch needle component to move along the Z-axis direction so that the lower driving component at least partially enters the vertical material channel.

[0017] Furthermore, an abutment surface is formed in the vertical material channel, the abutment surface is arranged on a side away from the horizontal material channel, and the abutment surface is arranged perpendicular to the horizontal material channel.

[0018] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0019] In the feeding device with a one-piece formed inductor of this embodiment, since a horizontal feeding channel and a vertical feeding channel perpendicular to each other are provided, the prefabricated coil can enter the cavity from the horizontal feeding channel, and the magnetic powder is pressed with the prefabricated coil from within the vertical feeding channel. This solution can ensure that the force directions of the prefabricated coil and the magnetic powder during pressing are always in the vertical direction, which is beneficial to improving the pressing effect. At the same time, the sizes of the horizontal feeding channel and the vertical feeding channel are the same as those of the prefabricated coil, enabling the magnetic powder to maintain a consistent shape during pressing, thereby ensuring the consistency of the shape of the produced NR inductor. In addition, this application provides two horizontal feeding channels and two vertical feeding channels, which can produce two NR inductors simultaneously, facilitating the improvement of the production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the front view of the feeding device with a one-piece formed inductor according to the embodiment of the present invention;

[0022] Figure 2 is the structural schematic diagram of the feeding device with a one-piece formed inductor according to the embodiment of the present invention;

[0023] Figure 3 is the top view of the feeding device with a one-piece formed inductor according to the embodiment of the present invention;

[0024] Figure 4 is Figure 3 the cross-sectional view along line A-A in

[0025] Figure 5 is Figure 4 the partial enlarged schematic diagram in

[0026] Figure 6 is the structural schematic diagram of the preparation mold according to the embodiment of the present invention;

[0027] Figure 7 is the structural schematic diagram of the preparation mold after removing the powder filling plate according to the embodiment of the present invention;

[0028] Figure 8 is the structural schematic diagram of the prefabricated coil;

[0029] Figure 9 is the structural schematic diagram of the produced NR inductor.

[0030] Among them: 100, the feeding device for the integrated inductor on the material path; 110, the preparation mold; 101, the horizontal material path; 102, the vertical material path; 1021, the inner material path; 1022, the outer material path; 1023, the abutting surface; 111, the mounting plate; 1111, the horizontal mounting groove; 1112, the vertical mounting groove; 1113, the guiding hole; 112, the horizontal mold; 113, the vertical mold; 114, the powder filling plate; 1141, the filling cavity; 115, the driving part; 120, the upper punch needle assembly; 121, the upper driving component; 122, the upper punch needle component; 123, the guiding component; 130, the lower punch needle assembly; 131, the lower driving component; 132, the lower punch needle component;

[0031] 60, the prefabricated coil; 61, the magnetic sheet; 62, the magnetic axis; 63, the coil; 64, the magnetic block; 70, the NR inductor. Specific embodiments

[0032] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] Please refer to Figures 1-9, an embodiment of the present utility model provides a feeding device 100 for an integrally formed inductor, which includes a preparation mold 110, an upper punch needle assembly 120, and a lower punch needle assembly 130. The preparation mold 110 is formed with a horizontal channel 101 and a vertical channel 102 that are perpendicular to each other. The horizontal channel 101 includes an inlet end and an outlet end. The outlet end of the horizontal channel 101 is communicated with the vertical channel 102. The vertical channel 102 penetrates through the preparation mold 110. The sizes of the horizontal channel 101 and the vertical channel 102 are adapted to the size of the prefabricated coil 60. The upper punch needle assembly 120 is disposed at the upper end of the vertical channel 102 and connected to the preparation mold 110; the lower punch needle assembly 130 is disposed at the lower end of the vertical channel 102 and connected to the preparation mold 110. Exemplarily, the channel structure of this device is common to dry and wet formed inductors. The horizontal channel 101 and the vertical channel 102 of the present application form a "T" shape after rotating 90° clockwise.

[0036] Please refer to Figure 4 , Figure 5 , in the feeding device 100 for the integrally formed inductor in this embodiment, due to the provision of the horizontal channel 101 and the vertical channel 102 that are perpendicular to each other, the prefabricated coil 60 can enter the cavity from the horizontal channel 101, and the magnetic powder is pressed with the prefabricated coil 60 from within the vertical channel 102. This solution can ensure that the force application directions of the prefabricated coil 60 and the magnetic powder are always in the vertical direction during pressing, which is beneficial to improving the pressing effect. At the same time, the sizes of the horizontal channel 101 and the vertical channel 102 are the same as those of the prefabricated coil 60, so that the magnetic powder can maintain a consistent shape during pressing, thereby ensuring the consistency of the shape of the produced NR inductor. In addition, the present application provides two horizontal channels 101 and two vertical channels 102, which can produce two NR inductors simultaneously, which is beneficial to improving the production efficiency of the device.

[0037] Please refer to Figure 4 , Figure 5 , in a possible implementation manner, the preparation mold 110 includes a mounting plate 111, a horizontal mold 112, and a vertical mold 113. A horizontal mounting groove 1111 and a vertical mounting groove 1112 are formed on the mounting plate 111. The horizontal mold 112 is disposed in the horizontal mounting groove 1111, and the vertical mold 113 is disposed in the vertical mounting groove 1112. The horizontal channel 101 is formed on the horizontal mold 112, and the vertical channel 102 is at least partially formed on the vertical mold 113.

[0038] Please refer to Figure 4 , Figure 5, in a possible implementation, the vertical material channel 102 includes an inner material channel 1021 and an outer material channel 1022. The inner material channel 1021 and the outer material channel 1022 are connected and their central axes coincide. The inner material channel 1021 is formed on the horizontal mold 112, and the outer material channel 1022 is formed on the vertical mold 113. Exemplarily, the inner material channel 1021 is connected to the horizontal material channel 101.

[0039] Please refer to Figure 6 、 Figure 7 , in a possible implementation, the preparation mold 110 further includes a powder filling plate 114 and a driving member 115. The driving member 115 is connected to the powder filling plate 114. A filling cavity 1141 is formed on the powder filling plate 114. The driving member 115 drives the powder filling plate 114 to move along the X-axis direction so that the filling cavity 1141 approaches or moves away from the vertical material channel 102. Exemplarily, the filling cavity 1141 is used to fill magnetic powder.

[0040] Please refer to Figure 6 、 Figure 7 , in a possible implementation, the material channel feeding device 100 for the integrally molded inductor further includes a powder feeding assembly (not shown in the figure), and the powder feeding assembly is connected to the filling cavity 1141.

[0041] Please refer to Figure 1 、 Figure 2 、 Figure 4 , in a possible implementation, the upper punch needle assembly 120 includes an upper driving member 121 and an upper punch needle member 122. The upper punch needle member 122 is connected to the upper driving member 121. The upper driving member 121 drives the upper punch needle member 122 to move along the Z-axis direction so that at least a part of the upper driving member 121 enters the vertical material channel 102.

[0042] Please refer to Figure 1 、 Figure 2 、 Figure 4 , in a possible implementation, the upper punch needle assembly 120 further includes a guiding member 123. The guiding member 123 is connected to the upper driving member 121. The powder filling plate 114 is formed with a guiding hole 1113 that cooperates with the guiding member 123. Exemplarily, the guiding member 123 is cylindrical, there are two guiding members 123, there are two guiding holes 1113, and the cooperation between the guiding member 123 and the guiding hole 1113 enables the upper punch needle assembly 120 to move along the vertical direction without deviation.

[0043] Please refer to Figure 1 、 Figure 4 、 Figure 5In a possible implementation, at least two horizontal channels 101 are provided, and the horizontal channels 101 are arranged in parallel, and at least two vertical channels 102 are provided, and the vertical channels 102 are arranged in parallel. Exemplarily, providing multiple horizontal channels 101 and vertical channels 102 is conducive to improving production efficiency.

[0044] Please refer to Figure 1 , Figure 2 , Figure 4 In a possible embodiment, the lower punch needle assembly 130 includes a lower driving component 131 and a lower punch needle component 132. The lower punch needle component 132 is connected to the lower driving component 131. The lower driving component 131 drives the lower punch needle component 132 to move along the Z-axis direction so that the lower driving component 131 at least partially enters the vertical material channel 102.

[0045] Please refer to Figure 1 , Figure 4 , Figure 5 In a possible implementation, a contact surface 1023 is formed in the vertical material channel 102, and the contact surface 1023 is arranged on a side away from the horizontal material channel 101, and the contact surface 1023 is arranged perpendicular to the horizontal material channel 101. Exemplarily, the contact surface 1023 ensures that each material is accurately positioned, so that multiple materials can be continuously fed.

[0046] Please refer to Figure 8 , Figure 9 When in use, the surface of the prefabricated coil 60 and the magnetic sheet 61 away from the magnetic axis 62 is placed in contact with the horizontal material channel 101, and the coil 63 is installed on the magnetic axis 62 and in contact with the magnetic sheet 61. It can be understood that a left ejector component (not shown in the figure) is also provided on the left side of the horizontal material channel 101. The left ejector component is used to push the prefabricated coil 60 through the horizontal material channel 101 to the intersection of the interface between the horizontal material channel 101 and the vertical material channel 102, and then the lower punch component 132 is moved upward to push the prefabricated coil 60 into the upper end of the vertical material channel 102; then the magnetic powder enters from the vertical material channel 102 and contacts the magnetic axis 62 of the prefabricated coil 60; use a Figure 8 The upper punching needle component 122 and the lower punching needle component 132 shown in the vertical material channel 102 respectively squeeze the NR inductor from the upper and lower sides, so that the prefabricated coil 60 and the magnetic powder are formed in the vertical material channel 102. Figure 9The fabricated NR inductor shown. The outer dimension of the magnetic sheet 61 of the prefabricated coil 60 in the plane perpendicular to the magnetic axis 62 is the same as the inner hole dimension of the vertical chute 102, and the outer dimensions of the upper punch component 122 and the lower punch component 132 entering from the vertical chute 102 are the same as the inner hole dimension of the vertical chute 102, ensuring that the prefabricated coil 60 and the magnetic powder are extruded in the positive direction during the extrusion process, preventing the magnetic powder from leaking during the extrusion process. By presetting the mass of the magnetic powder, as well as the mass and structure of the prefabricated coil 60, the total mass and structure of the fabricated product are ensured to be within a reasonable range, guaranteeing the performance parameters of the fabricated NR inductor and making the performance of multiple fabricated NR inductors stable.

[0047] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A material feeding device for an integrally molded inductor, characterized in that: include: A preparation mold, wherein the preparation mold is formed with a horizontal channel and a vertical channel arranged perpendicular to each other, the horizontal channel includes an inlet end and an outlet end, the outlet end of the horizontal channel is connected to the vertical channel, the vertical channel runs through the preparation mold, and the sizes of the horizontal channel and the vertical channel are adapted to the sizes of the prefabricated coil; An upper punch assembly is disposed at the upper end of the vertical material channel and connected to the preparation mold; A lower punch assembly is arranged at the lower end of the vertical material channel and connected to the preparation mold.

2. The material feeding device for the integrally molded inductor according to claim 1, characterized in that: The preparation mold includes a mounting plate, a horizontal mold and a vertical mold. A horizontal mounting groove and a vertical mounting groove are formed on the mounting plate. The horizontal mold is arranged in the horizontal mounting groove. The vertical mold is arranged in the vertical mounting groove. The horizontal material channel is formed on the horizontal mold. The vertical material channel is at least partially formed on the vertical mold.

3. The material feeding device for the integrally molded inductor according to claim 2, characterized in that: The vertical material channel includes an inner material channel and an outer material channel, the inner material channel and the outer material channel are connected and their central axes coincide with each other, the inner material channel is formed on the horizontal mold, and the outer material channel is formed on the vertical mold.

4. The material feeding device for the integrally molded inductor according to claim 2, characterized in that: The preparation mold also includes a powder filling plate and a driving member, wherein the driving member is connected to the powder filling plate, a filling cavity is formed on the powder filling plate, and the driving member drives the powder filling plate to move along the X-axis direction to make the filling cavity approach or move away from the vertical material channel.

5. The material feeding device for the integrally molded inductor according to claim 4, characterized in that: The material channel feeding device of the integrally formed inductor further includes a powder feeding component, and the powder feeding component is communicated with the filling cavity.

6. The material feeding device for the integrally molded inductor according to claim 4, characterized in that: The upper punch assembly includes an upper driving component and an upper punch component, wherein the upper punch component is connected to the upper driving component, and the upper driving component drives the upper punch component to move along the Z-axis direction so that the upper driving component at least partially enters the vertical material channel.

7. The material feeding device for the integrally molded inductor according to claim 6, characterized in that: The upper punch assembly further comprises a guide member, which is connected to the upper driving component, and the powder filling plate is formed with a guide hole which cooperates with the guide member.

8. The material channel feeding device for the integrally molded inductor according to claim 1, characterized in that: At least two horizontal material channels are provided, and the horizontal material channels are arranged in parallel with each other. At least two vertical material channels are provided, and the vertical material channels are arranged in parallel with each other.

9. The material feeding device for the integrally molded inductor according to claim 1, characterized in that: The lower punch needle assembly includes a lower driving component and a lower punch needle component, wherein the lower punch needle component is connected to the lower driving component, and the lower driving component drives the lower punch needle component to move along the Z-axis direction so that the lower driving component at least partially enters the vertical material channel.

10. The material feeding device for the integrally molded inductor according to claim 1, characterized in that: An abutting surface is formed in the vertical material channel. The abutting surface is arranged on a side away from the horizontal material channel, and the abutting surface is arranged perpendicular to the horizontal material channel.

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