Novel integrally-formed inductor

Abstract

The utility model relates to the technical field of inductors, and provides a novel integrally-formed inductor which comprises a shell, a coil conductor is arranged in the shell, terminals are fixedly connected to the two ends of the coil conductor, a cover is connected to one end of the shell in a buckled mode, and the shell is of a cylindrical structure with one end recessed inwards. A clamping groove is formed in the upper end of the shell, and a buckle is fixedly connected to the outer surface of the cover; the lower end of the cover is fixedly connected with a ring positioning part, and a clamping hole is formed in the position, corresponding to the ring positioning part, of the outer surface of the cover. An inner cavity part between the cover and the shell is filled with slurry, and the slurry is cured through baking; the number of the ring locators and the number of the terminals are both two, and the positions of the ring locators and the terminals are in one-to-one correspondence. By means of the technical scheme, the problems that an existing common inductor is low in utilization rate, high in integrated forming technology requirement, prone to product fragmentation in the forming process and high in cost are solved, the better application effect can be achieved, and the application prospect is good.

Description

Technical Field

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

[0002] Traditional inductors use enameled coils wound on a "ring-shaped" core with a certain number of turns. This has low space utilization, low efficiency, and is not conducive to mass production. After improvements, one-piece molding was adopted to improve space utilization. However, the workmanship of one-piece molding is more complicated than that of traditional inductors, and high requirements are placed on molding technology. The coil is easily damaged during the molding process, the product is easily broken, and the cost price is high.

[0003] Therefore, an inductor with simple process, low cost, high temperature resistance, high saturation, high space utilization, high reliability and high electromagnetic shielding effect is needed. This patent proposes a new type of integrated molded inductor to solve the above problems. Utility Model Content

[0004] The utility model provides a novel one-piece molded inductor, which solves the problems mentioned in the background technology that the existing common inductor has low utilization rate, high one-piece molding technology requirements, easy breakage of products during the molding process, and high cost.

[0005] The technical solution of the utility model is as follows:

[0006] A novel one-piece molded inductor comprises a shell, wherein a coil conductor is arranged inside the shell, terminals are fixedly connected to both ends of the coil conductor, a cover is snap-connected to one end of the shell, the shell is a cylindrical structure with one end recessed inward, a slot is provided at the upper end of the shell, and a snap is fixedly connected to the outer surface of the cover.

[0007] As a further technical solution of the utility model, a ring positioning is fixedly connected to the lower end of the cover, and a clamping hole is opened on the outer surface of the cover corresponding to the ring positioning.

[0008] As a further technical solution of the utility model, the inner cavity between the cover and the shell is filled with slurry, and the slurry is cured by baking.

[0009] As a further technical solution of the utility model, the number of the ring positioning and the number of the terminals are both two groups, and the positions of the two groups correspond one to one.

[0010] As a further technical solution of the utility model, the diameter of the clamping hole is equal to the diameter of the terminal.

[0011] As a further technical solution of the utility model, the buckle matches the slot, the number of the slots is several groups and distributed in a ring array, the number of the buckles is greater than two groups, and the buckles are distributed in a ring array, and a buckle connection is formed between the cover and the shell through the buckle and the slot.

[0012] As a further technical solution of the utility model, a middle column is arranged inside the center, and the slurry wraps the entire coil conductor and the middle column between the cover and the shell.

[0013] As a further technical solution of the utility model, the center column is a cylindrical or "T"-shaped columnar structure.

[0014] The working principle and beneficial effects of the utility model are:

[0015] The inductor magnetic circuit provided in the utility model is closed, has good magnetic shielding, small interference, and low space utilization; the reliability of the inductor is improved; the cover and the plastic shell cooperate with each other to position the coil conductor with good consistency; the shell saves the trouble of mold pressing, greatly improves production efficiency, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial structure inside the utility model;

[0019] Figure 3 It is a partial exploded view of the utility model;

[0020] Figure 4 A partial structural schematic diagram of a group of embodiments of the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of another group of embodiments of the utility model.

[0022] In the figure: 1. shell; 2. cover; 3. coil conductor; 4. slot; 5. buckle; 6. ring positioning; 7. hole; 8. terminal; 9. slurry; 10. center column. DETAILED DESCRIPTION

[0023] The following will be combined with 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 the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0024] like Figure 1~Figure 3 As shown, this embodiment proposes a new type of one-piece molded inductor, including a shell 1, a coil conductor 3 is arranged inside the shell 1, terminals 8 are fixedly connected to the two ends of the coil conductor 3, a cover 2 is connected to a buckle 5 at one end of the shell 1, the shell 1 is a cylindrical structure with one end recessed inward, a slot 4 is opened at the upper end of the shell 1, and a buckle 5 is fixedly connected to the outer surface of the cover 2.

[0025] A ring positioning 6 is fixedly connected to the lower end of the cover 2 , and a clamping hole 7 is provided on the outer surface of the cover 2 corresponding to the ring positioning 6 .

[0026] The cavity between the cover 2 and the housing 1 is filled with slurry 9, and the slurry 9 is cured by baking.

[0027] The number of the ring positioning 6 and the number of the terminals 8 are both two, and the positions of the two correspond one to one.

[0028] The diameter of the clamping hole 7 is equal to the diameter of the terminal 8 .

[0029] The buckle 5 matches the slot 4. The number of the slots 4 is several groups and distributed in a ring array. The number of the buckles 5 is greater than two groups and distributed in a ring array. The cover 2 and the shell 1 are connected by the buckle 5 and the slot 4.

[0030] In this embodiment, the shell 1 adopts a plastic shell 1, and the plastic shell 1 replaces the mold, and the mixed slurry 9 is poured into it, and the coil conductor 3 and the cover 2 are placed. There are two buckles 5 on the cover 2, which cooperate with the card slots 4 on the shell 1. There are also two ring positioning 6 at the matching position of the cover 2 and the coil conductor 3, which play a positioning role between the terminals 8 at both ends of the coil conductor 3 and the cover 2, ensuring that the coil conductor 3 is located in the middle of the plastic shell 1, and then put into an oven for curing and shaping. Example 2

[0031] Different from the first embodiment, a center column 10 is added to the inner side of the coil conductor 3. In this state, the inductor can obtain a higher comprehensive magnetic permeability and a lower loss, because the first soft magnetic body is formed by pressing the soft magnetic alloy powder, and the density and performance are much higher than the soft magnetic body obtained by wrapping the coil and solidifying the slurry 9;

[0032] The first soft magnetic body is solidified by magnetic slurry 9, and alloy powder and resin are mixed in proportion. The middle column 10 is obtained by pressing the alloy powder. The density and performance of the middle column 10 are much higher than those of the slurry 9. The coil conductor 3 (Φ1.8*6.5Ts) is inserted into the middle column 10 and then positioned by the cover 2. The coil conductor 3 and the middle column 10 are completely immersed in the slurry 9 and finally baked and solidified.

[0033] In this embodiment, the center column 10 adopts a cylindrical structure. Example 3

[0034] The difference from the second embodiment is that the middle column 10 in the second embodiment is replaced by a T-shaped magnetic core, which is a "T"-shaped structure, thereby obtaining a larger magnetic core volume, thereby improving the application performance of the inductor.

[0035] In summary, the practical inductor has a closed magnetic circuit and good magnetic shielding, and will not interfere with surrounding components; there is no gap between the magnet and the coil conductor 3, which improves space utilization;

[0036] No additional stress is generated during the molding process, and the coil does not need special treatment, which improves the reliability of the inductor; the plastic cover 2 adds a structure for the buckle 5 to connect, which has a positioning function and cooperates with the plastic shell 1 to ensure that the coil conductor 3 is at its center position with good consistency;

[0037] At the same time, the mold is replaced by the plastic shell 1, which saves the trouble of pressing with the mold, greatly improves the production efficiency and reduces the cost.

[0038] The above are only preferred embodiments of the present invention and are 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 new type of integrated inductor, It is characterized in that The invention comprises a shell (1), wherein a coil conductor (3) is arranged inside the shell (1), terminals (8) are fixedly connected to both ends of the coil conductor (3), one end of the shell (1) is snap-connected to a cover (2), the shell (1) is a cylindrical structure with one end recessed inwards, a slot (4) is provided at the upper end of the shell (1), and a snap (5) is fixedly connected to the outer surface of the cover (2).

2. According to the novel one-piece molded inductor of claim 1, It is characterized in that The lower end of the cover (2) is fixedly connected to a ring positioning (6), and a clamping hole (7) is provided on the outer surface of the cover (2) at a position corresponding to the ring positioning (6).

3. The novel one-piece molded inductor according to claim 1, It is characterized in that The inner cavity between the cover (2) and the outer shell (1) is filled with slurry (9), and the slurry (9) is cured by baking.

4. The novel one-piece molded inductor according to claim 2, It is characterized in that The number of the ring positioning (6) and the number of the terminals (8) are both two groups, and the positions of the two groups correspond one to one.

5. The novel one-piece molded inductor according to claim 2, It is characterized in that The diameter of the clamping hole (7) is equal to the diameter of the terminal (8).

6. The novel one-piece molded inductor according to claim 2, It is characterized in that The buckles (5) match the slots (4); the number of the slots (4) is several groups and they are distributed in a ring array; the number of the buckles (5) is greater than two groups and they are distributed in a ring array; the cover (2) and the housing (1) are connected by a buckle via the buckles (5) and the slots (4).

7. The novel one-piece molded inductor according to claim 3, It is characterized in that A center column (10) is arranged inside the center of the coil conductor (3), and the slurry (9) wraps the entirety of the coil conductor (3) and the center column (10) between the cover (2) and the housing (1).

8. The novel one-piece molded inductor according to claim 7, It is characterized in that The center column (10) is a cylindrical or T-shaped columnar structure.

Images