Shielding chip inductor

Abstract

The utility model discloses a shielding chip inductor, and particularly relates to the technical field of chip inductors, which comprises a welding base, a shell is movably arranged at the upper end of the welding base, and a plurality of wiring terminals are arranged on two sides of the welding base; terminal protection devices for protecting the wiring terminals are arranged on the two sides of the welding base and are used for being movably connected with the wiring terminals; the terminal protection device comprises a plurality of conductive hinge seats, the conductive hinge seats are fixedly arranged on the two sides of the welding base respectively, and conductive blocks are fixedly arranged at the movable ends of the conductive hinge seats. Shell dismounting devices capable of being movably connected with the welding base are arranged on the two sides of the shell and used for installing the shell at the upper end of the welding base. According to the utility model, through the arrangement of the terminal protection device, movable connection of the wiring terminal is facilitated, so that the wiring terminal is protected, breakage of the wiring terminal caused by bending of the wiring terminal during installation is avoided, and through the arrangement of the housing dismounting device, the housing is facilitated to be installed at the upper end of the welding base.

Description

Technical Field

[0001] The utility model relates to the technical field of patch inductors, and more specifically, to a shielded patch inductor. Background Art

[0002] As electronic products become smaller and thinner, the size of magnetic components is also required to be smaller and thinner. At the same time, in the layout of circuit board components, as the size of components is getting smaller and smaller, the layout of components is becoming more and more dense. Due to the density of components and the increase in operating frequency, the electromagnetic interference between components is becoming more and more serious, and it is becoming more and more difficult for the whole product to pass the EMC-related standards. Inductors working in a switching mode (especially non-shielded inductors) have become the main source of interference and even noise for the whole machine.

[0003] After searching, for example, a Chinese patent application with application number CN202221229270.6 discloses a fully shielded chip inductor, which adopts the same I-shaped ferrite core as an ordinary inductor as the winding body, the I-shaped core is fixed on a welding base, the enameled wire winding is wound on the I-shaped core and the wire end is connected to the welding base, and the external square magnetic cover is fixed outside the I-shaped core to increase the inductance and improve magnetic leakage. A fully enclosed metal shell is added outside the square magnetic cover, and a wiring terminal connected to the PCB ground terminal is provided on the metal shell, so that the fully enclosed metal shell outside the inductor is in a grounded state during the operation of the product to shield the magnetic radiation of the inductor. The utility model has a simple structure, good shielding effect, and low manufacturing cost.

[0004] However, the wiring terminals of the above technical solution are connected to the welding base by welding. As is well known, the wiring terminals are prone to breakage during installation or disassembly, and the above solution welds the metal shell to the welding base. When the internal parts are damaged, they are difficult to repair and can only be replaced as a whole, which increases the cost of use. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a shielded chip inductor, and the technical problem to be solved is that the connection terminals are easily broken and it is difficult to disassemble the metal shell to repair the internal parts.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a shielded chip inductor, including a welding base:

[0007] A housing is movably provided at the upper end of the welding base, and a plurality of connection terminals are provided on both sides of the welding base;

[0008] Terminal protection devices for protecting the connection terminals are provided on both sides of the welding base and are used for movably connecting the connection terminals;

[0009] The terminal protection device comprises a plurality of conductive hinge seats, which are respectively fixedly arranged on both sides of the welding base, and a conductive block is fixedly arranged at the movable end of the conductive hinge seat;

[0010] Shell disassembly devices capable of being movably connected to the welding base are provided on both sides of the shell and are used to install the shell on the upper end of the welding base.

[0011] In a preferred embodiment, the lower end of the conductive block is fixedly connected to the upper end of the wiring terminal, the outer surface of the wiring terminal is covered with a heat dissipation insulating sleeve, and one end of the wiring terminal is provided with a wiring port.

[0012] In a preferred embodiment, the shell disassembly device includes two slide grooves, which are respectively opened on both sides of the shell, and push-pull blocks are movably provided inside the slide grooves. The grooves inside the slide grooves are slidably connected to the protrusions on both sides of the push-pull blocks.

[0013] In a preferred embodiment, a first hinge seat is fixedly provided on one side of the push-pull block, and a pulling rod is hingedly connected to the outer surface of the first hinge seat.

[0014] In a preferred embodiment, a third hinge seat is fixedly provided on one side of the shell, an L-shaped hook is hinged on the outer surface of the third hinge seat, a second hinge seat is fixedly provided on one side of the upper end of the L-shaped hook, and the outer surface of the second hinge seat is hinged to the lower end of the pull rod.

[0015] In a preferred embodiment, a spring is movably provided on one side of the L-shaped hook, one end of the spring is inserted into a groove inside the shell, a hanging block is fixedly provided on the inner wall of the welding base groove, and the L-shaped hook is buckled with the hanging block.

[0016] In a preferred embodiment, an I-shaped magnetic core is movably provided on the upper end of the welding base, four hanging ears are fixedly provided on the outer surface of the lower end of the I-shaped magnetic core, the four hanging ears are fixedly connected to the welding base by bolts, and an enameled wire winding is movably provided on the outer surface of the I-shaped magnetic core.

[0017] Technical effects and advantages of the utility model:

[0018] 1. The utility model is provided with a terminal protection device, which is conducive to the active connection of the terminal, thereby protecting the terminal and avoiding the terminal from being broken due to the need to bend the terminal during installation. The conductive hinge seat is movably connected, so that the conductive block and the terminal can rotate around the conductive hinge seat. When the terminal needs to be bent for installation, the terminal can be rotated to avoid bending and breaking. The heat dissipation insulation sleeve provides heat dissipation protection for the terminal, avoiding excessive resistance at the connection point, resulting in hot melting of the terminal, and improving the service life of the terminal as a whole, avoiding the terminal from being broken due to disassembly;

[0019] 2. The utility model is provided with a shell disassembly device, which is conducive to installing the shell on the upper end of the welding base. When the parts inside the shell are damaged, the shell can be easily disassembled for repair. The push-pull blocks slide in the slide groove. When disassembling, the push-pull blocks on both sides are pinched and pulled upward, thereby driving the pulling rod upward, and the pulling rod pulls the second hinge seat and the L-shaped hook, thereby separating the L-shaped hook from the hanging block. Therefore, the shell can be separated from the welding base, and the shell can be disassembled as a whole without using tools, thereby reducing the cost waste caused by replacing the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a side sectional view of the utility model.

[0022] Figure 3 It is a top view of the utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the terminal protection device of the present utility model.

[0024] Figure 5 It is a schematic diagram of the structure of the shell disassembly device of the utility model.

[0025] The accompanying drawings are marked as follows: 1. welding base; 2. terminal protection device; 3. shell disassembly device; 4. shell; 5. I-shaped magnetic core; 6. enameled wire winding; 7. hanging ear; 21. conductive hinge seat; 22. conductive block; 23. wiring terminal; 24. heat dissipation insulation sleeve; 25. wiring port; 31. slide groove; 32. push-pull block; 33. first hinge seat; 34. pulling rod; 35. second hinge seat; 36. L-shaped hook; 37. spring; 38. third hinge seat; 39. hanging block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field of chip inductors without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 , 2 As shown in Figure 3, the utility model provides a shielded chip inductor, including a welding base 1: a shell 4 is movably provided on the upper end of the welding base 1, an I-shaped magnetic core 5 is movably provided on the upper end of the welding base 1, four hanging ears 7 are fixedly provided on the outer surface of the lower end of the I-shaped magnetic core 5, the four hanging ears 7 are fixedly connected to the welding base 1 by bolts, and an enameled wire winding 6 is movably provided on the outer surface of the I-shaped magnetic core 5.

[0028] In order to protect the connection terminal 23 from breaking, terminal protection devices 2 for protecting the connection terminal 23 are provided on both sides of the welding base 1, and are used for movably connecting the connection terminal 23;

[0029] like Figure 4 As shown, the terminal protection device 2 includes a plurality of conductive hinge seats 21, a plurality of wiring terminals 23 are arranged on both sides of the welding base 1, and the plurality of conductive hinge seats 21 are respectively fixedly arranged on both sides of the welding base 1, a conductive block 22 is fixedly arranged at the movable end of the conductive hinge seat 21, the lower end of the conductive block 22 is fixedly connected to the upper end of the wiring terminal 23, the outer surface of the wiring terminal 23 is sleeved with a heat dissipation insulating sleeve 24, and a wiring port 25 is opened at one end of the wiring terminal 23. Through the movable connection of the conductive hinge seat 21, the conductive block 22 and the wiring terminal 23 can rotate around the conductive hinge seat 21. When the wiring terminal 23 needs to be bent for installation, the wiring terminal 23 can be rotated to avoid bending and fracture. The heat dissipation insulating sleeve 24 provides heat protection for the wiring terminal 23 to avoid excessive resistance at the wiring point, which causes the wiring terminal 23 to melt, thereby improving the service life of the wiring terminal 23 as a whole and avoiding the wiring terminal 23 from breaking due to disassembly.

[0030] Furthermore, in order to facilitate the removal of the housing 4, housing removal devices 3 that can be movably connected to the welding base 1 are provided on both sides of the housing 4, and are used to install the housing 4 on the upper end of the welding base 1;

[0031] like Figure 5As shown, the shell disassembly device 3 includes two slide grooves 31, and the two slide grooves 31 are respectively opened on both sides of the shell 4. A push-pull block 32 is movably provided inside the slide groove 31. The inner groove of the slide groove 31 is slidably connected with the protrusions on both sides of the push-pull block 32. A first hinge seat 33 is fixedly provided on one side of the push-pull block 32. A pulling rod 34 is hinged on the outer surface of the first hinge seat 33. A third hinge seat 38 is fixedly provided on one side of the shell 4. An L-shaped hook 36 is hinged on the outer surface of the third hinge seat 38. A second hinge seat 35 is fixedly provided on one side of the upper end of the L-shaped hook 36. The outer surface of the second hinge seat 35 is hinged on the lower end of the pulling rod 34. One side of the L-shaped hook 36 is movably provided. A spring 37 is provided, one end of which is inserted into the groove inside the shell 4. A hanging block 39 is fixedly provided on the inner wall of the groove of the welding base 1. The L-shaped hook 36 is buckled with the hanging block 39 and slides in the slide groove 31 through the push-pull block 32. When disassembling, the push-pull blocks 32 on both sides are pinched and pulled upward, thereby driving the pulling rod 34 upward, and the pulling rod 34 pulls the second hinge seat 35 and the L-shaped hook 36, thereby disengaging the L-shaped hook 36 from the hanging block 39. Therefore, the shell 4 can be separated from the welding base 1, and the shell 4 can be disassembled as a whole without using tools, thereby reducing the cost waste caused by replacing the whole.

[0032] The working principle is as follows: when the utility model is in use, the terminal protection device 2 protects the connection between the terminal 23 and the equipment, thereby protecting the terminal 23 and increasing the service life of the terminal 23. When the parts inside the utility model are damaged, the shell 4 is disassembled through the shell disassembly device 3, so that the parts inside the utility model can be repaired, reducing the cost waste of replacing the entire part due to damaged parts.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shielded chip inductor, comprising a welding base (1), characterized in that: A housing (4) is movably provided at the upper end of the welding base (1), and a plurality of connection terminals (23) are provided on both sides of the welding base (1); Terminal protection devices (2) for protecting the wiring ports (25) are provided on both sides of the welding base (1) and are used for movable connection wire terminals (23); The terminal protection device (2) comprises a plurality of conductive hinge seats (21), wherein the plurality of conductive hinge seats (21) are respectively fixedly arranged on both sides of the welding base (1), and a conductive block (22) is fixedly arranged at the movable end of the conductive hinge seat (21); Shell disassembly devices (3) capable of being movably connected to the welding base (1) are provided on both sides of the shell (4) and are used to install the shell (4) on the upper end of the welding base (1).

2. A shielded chip inductor according to claim 1, characterized in that: The lower end of the conductive block (22) is fixedly connected to the upper end of the wiring terminal (23); the outer surface of the wiring terminal (23) is sheathed with a heat dissipation insulating sleeve (24); and one end of the wiring terminal (23) is provided with a wiring port (25).

3. The shielded chip inductor according to claim 1, characterized in that: The shell disassembly device (3) comprises two slide grooves (31), the two slide grooves (31) are respectively arranged on both sides of the shell (4), a push-pull block (32) is movably arranged inside the slide groove (31), and the inner groove of the slide groove (31) is slidably connected with the protrusions on both sides of the push-pull block (32).

4. A shielded chip inductor according to claim 3, characterized in that: A first hinge seat (33) is fixedly provided on one side of the push-pull block (32), and a pulling rod (34) is hingedly connected to the outer surface of the first hinge seat (33).

5. The shielded chip inductor according to claim 4, characterized in that: A third hinge seat (38) is fixedly provided on one side of the housing (4), an L-shaped hook (36) is hingedly connected to the outer surface of the third hinge seat (38), a second hinge seat (35) is fixedly provided on one side of the upper end of the L-shaped hook (36), and the outer surface of the second hinge seat (35) is hingedly connected to the lower end of the pulling rod (34).

6. The shielded chip inductor according to claim 5, characterized in that: A spring (37) is movably provided on one side of the L-shaped hook (36), one end of the spring (37) is inserted into a groove inside the housing (4), a hanging block (39) is fixedly provided on the inner wall of the groove of the welding base (1), and the L-shaped hook (36) is buckled with the hanging block (39).

7. The shielded chip inductor according to claim 1, characterized in that: An I-shaped magnetic core (5) is movably provided on the upper end of the welding base (1), four hanging ears (7) are fixedly provided on the outer surface of the lower end of the I-shaped magnetic core (5), the four hanging ears (7) are fixedly connected to the welding base (1) by bolts, and an enameled wire winding (6) is movably provided on the outer surface of the I-shaped magnetic core (5).

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