Chip power inductor magnetic core winding packaging structure

Abstract

The utility model discloses a magnetic core winding packaging structure of a chip power inductor, relates to the technical field of inductors, and aims to solve the problem that the use effect is affected by internal high temperature due to the fact that a chip power inductor in the prior art generally does not have heat dissipation performance, and the following scheme is provided: the magnetic core winding packaging structure comprises a bottom shell, and the top of the bottom shell is connected with a sealing cover; a heat dissipation plate is embedded in the top of the sealing cover, and pins are inserted into the bottoms of the outer walls of the two sides of the bottom shell. A coil can be conveniently wound through the detachable winding assembly, the coil is connected to the bottom in the bottom shell in a screwed mode through the screw after being wound in the threaded wire groove of the winding column, the rotation angle of the winding column is positioned through the check block arranged in a matched mode, and therefore the winding assembly with the coil is fixed in the bottom shell. The heat of the coil is transferred to the heat-conducting fins through the winding column, and then is transferred to the heat dissipation plate through the heat-conducting rods by the heat-conducting fins, so that the heat in the bottom shell is favorably discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to inductance technical field especially relates to a kind of patch power inductance magnetic core winding packaging structure. BACKGROUND

[0002] Patch inductance is a property of closed loop. When the coil of patch inductance passes through current, patch inductance forms magnetic field induction in coil, and the induced magnetic field will generate induced current to resist the current passing through coil. The role of patch inductance in circuit is to generate changing magnetic field when passing through non-steady current, and this magnetic field will in turn affect current. Patch inductance is connected in series in power supply loop, and inductance is straight-through to direct current and high-resistance to high-frequency pulse, so it plays the role of passing direct current and resisting alternating current pulse.

[0003] Patch power inductance is widely used in present life, but the existing patch power inductance usually does not have heat dissipation, which affects the use effect due to high internal temperature. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of patch power inductance magnetic core winding packaging structure, overcome the deficiencies of prior art, effectively solve the problem that the existing patch power inductance usually does not have heat dissipation, which affects the use effect due to high internal temperature.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of patch power inductance magnetic core winding packaging structure, including bottom shell, the top of bottom shell is connected with cover, and the top of cover is embedded with heat sink, the bottom of the outer wall of both sides of bottom shell is inserted with pin, and the top of two pins is connected with first connecting block and second connecting block respectively, the first connecting block and second connecting block are connected with coil, and coil is wound with winding assembly, the winding assembly includes winding column, screw rod fixed to the bottom of winding column, fixed block fixed to the bottom of the outer wall of winding column, heat conduction sheet connected to the top of winding column.

[0007] The winding assembly is convenient for winding the coil by being detachable, and after the coil is wound in the thread-like line slot of winding column, the coil is screwed in the bottom of bottom shell by screw rod, and the rotation angle of winding column is positioned by the stop block arranged in cooperation, so that the winding assembly is fixed in bottom shell with coil, when using, the heat of coil is transferred to heat conduction sheet by winding column, and then transferred to heat sink by heat conduction rod, which is beneficial to discharging the heat in bottom shell.

[0008] Preferably, the top of cover is provided with a groove matched with heat sink, and a through hole is formed in the bottom of groove.

[0009] The heat dissipation plate is fixed on the top of the cover through the groove.

[0010] Preferably, the bottom of the second connecting block is fixed with a connecting rod, and the bottom of the connecting rod is fixed with the pin.

[0011] The second connecting block is fixed above the pin through the connecting rod.

[0012] Preferably, the outer wall of the winding column is provided with a spiral thread groove, and the thread groove is matched with the coil.

[0013] The coil is positioned and wound through the spiral thread groove.

[0014] Preferably, the bottom of the heat dissipation plate is fixed with a heat conduction rod inserted into the through hole, and the bottom end of the heat conduction rod abuts against the top of the heat conduction sheet.

[0015] The heat of the coil is transmitted to the heat conduction sheet through the winding column, and then transmitted to the heat dissipation plate through the heat conduction sheet.

[0016] Preferably, the bottom of the bottom shell is fixed with a thread groove, and the thread groove is threadedly matched with the screw rod, and one side of the thread groove is provided with a stop block fixed to the bottom of the bottom shell.

[0017] The winding column is screwed in the bottom of the bottom shell through the screw rod, and the rotation angle of the winding column is positioned through the stop block.

[0018] The beneficial effects of the present application are as follows:

[0019] The coil is wound through the detachable winding assembly, and after the coil is wound in the thread-shaped thread groove of the winding column, the winding column is screwed in the bottom of the bottom shell through the screw rod, and the rotation angle of the winding column is positioned through the stop block, so that the winding assembly with the coil is fixed in the bottom shell. When in use, the heat of the coil is transmitted to the heat conduction sheet through the winding column, and then transmitted to the heat dissipation plate through the heat conduction sheet, which is beneficial to discharging the heat in the bottom shell, and effectively solves the problem that the existing patch power inductance generally does not have heat dissipation, which affects the use effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 The present application provides a whole structure schematic view of a patch power inductance magnetic core winding packaging structure.

[0021] Fig. 2 The present application provides a bottom shell internal structure schematic view of a patch power inductance magnetic core winding packaging structure.

[0022] Fig. 3 The present application provides a winding assembly structure schematic view of a patch power inductance magnetic core winding packaging structure.

[0023] In the figure: 1, bottom shell; 2, cover; 3, heat dissipation plate; 4, pin; 5, first connecting block; 6, connecting rod; 7, second connecting block; 8, coil; 9, winding assembly; 10, winding column; 11, screw rod; 12, fixed block; 13, heat conduction sheet; 14, wire slot; 15, stop block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] Embodiment:

[0026] Referring to Figs. 1-3 A patch power inductance magnetic core winding packaging structure, including bottom shell 1, the top of bottom shell 1 is connected with cover 2, the top of cover 2 is embedded with heat dissipation plate 3, the bottom of the two side outer walls of bottom shell 1 is inserted with pin 4, the top of two pins 4 is connected with first connecting block 5 and second connecting block 7 respectively, first connecting block 5 and second connecting block 7 are connected with coil 8, coil 8 is wound with winding assembly 9, winding assembly 9 includes winding column 10, screw rod 11 fixed to the bottom of winding column 10, fixed block 12 fixed to the bottom of the outer wall of winding column 10, heat conduction sheet 13 connected to the top of winding column 10;

[0027] The top of cover 2 is provided with a groove matched with heat dissipation plate 3, a through hole is formed in the bottom of the groove, heat dissipation plate 3 is fixed to the top of cover 2 through the groove, the bottom of second connecting block 7 is fixed with connecting rod 6, the bottom of connecting rod 6 is connected and fixed with pin 4, second connecting block 7 is fixed above pin 4 through connecting rod 6, the outer wall of winding column 10 is provided with spiral wire slot 14 matched with coil 8, coil 8 is positioned and wound through spiral wire slot 14;

[0028] The bottom of heat dissipation plate 3 is fixed with heat conduction rod inserted into the through hole, the bottom end of heat conduction rod abuts against the top of heat conduction sheet 13, the heat of coil 8 is transmitted to heat conduction sheet 13 through winding column 10, and then transmitted to heat dissipation plate 3 through heat conduction sheet 13 and heat conduction rod, the bottom of bottom shell 1 is fixed with screw groove, the screw groove is in threaded connection with screw rod 11, one side of screw groove is provided with stop block 15 fixed to the bottom of bottom shell 1, winding column 10 is screwed in the bottom of bottom shell 1 through screw rod 11, and the rotation angle of winding column 10 is positioned through the arranged stop block 15.

[0029] Working principle:

[0030] The winding of the coil 8 is facilitated by the detachable winding assembly 9, and after the coil 8 is wound in the thread groove 14 of the winding column 10, the coil 8 is screwed in the bottom of the bottom shell 1 through the screw rod 11, the rotation angle of the winding column 10 is positioned by the stop block 15, the winding assembly 9 is fixed in the bottom shell 1 with the coil 8, and when in use, the heat of the coil 8 is transmitted to the heat-conducting sheet 13 through the winding column 10, and then transmitted to the heat-dissipating plate 3 through the heat-conducting rod, so that the heat in the bottom shell 1 is beneficially discharged.

[0031] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A surface-mount power inductor core winding package structure, comprising a bottom shell (1), characterized in that, The top of the bottom shell (1) is connected to a cover (2), and a heat sink (3) is embedded in the top of the cover (2). Pins (4) are inserted into the bottom of the outer walls on both sides of the bottom shell (1), and the top of the two pins (4) are respectively connected to a first connecting block (5) and a second connecting block (7). The first connecting block (5) and the second connecting block (7) are both connected to coils (8), and the coils (8) are wound with a winding assembly (9). The winding assembly (9) includes a winding post (10), a screw (11) fixed to the bottom of the winding post (10), a fixing block (12) fixed to the bottom of the outer wall of the winding post (10), and a heat-conducting plate (13) connected to the top of the winding post (10).

2. The surface-mount power inductor core winding packaging structure according to claim 1, characterized in that, The top of the cover (2) is provided with a groove that is compatible with the heat sink (3), and the bottom of the groove is provided with a through hole.

3. The surface mount power inductor core winding packaging structure according to claim 1, characterized in that, The bottom of the second connecting block (7) is fixed with a connecting rod (6), and the bottom of the connecting rod (6) is connected and fixed to the pin (4).

4. The surface-mount power inductor core winding packaging structure according to claim 1, characterized in that, The outer wall of the winding post (10) is provided with a spiral groove (14), and the groove (14) is adapted to the coil (8).

5. The surface mount power inductor core winding packaging structure according to claim 2, characterized in that, The bottom of the heat sink (3) is fixed with a heat-conducting rod inserted into the through hole, and the bottom end of the heat-conducting rod abuts against the top of the heat-conducting sheet (13).

6. The surface-mount power inductor core winding packaging structure according to claim 1, characterized in that, The bottom of the bottom shell (1) is fixed with a threaded groove, and the threaded groove and the screw (11) form a threaded engagement. A stop block (15) fixed to the bottom of the bottom shell (1) is provided on one side of the threaded groove.

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