Combined inductor of mixed magnetic circuit

Abstract

The utility model relates to the technical field of inductors, in particular to a combined inductor of a mixed magnetic circuit, which comprises a magnetic core, a coil, a first fixing plate and a second fixing plate, one end of the magnetic core is rotatably connected with the first fixing plate, the coil is wound on the iron core, the other end of the magnetic core is detachably connected with the second fixing plate, and the first fixing plate is fixedly connected with the second fixing plate. The end of the magnetic core can be fixedly connected with the second fixing plate by rotating the magnetic core in one direction, and the magnetic core can be separated from the second fixing plate by rotating the magnetic core by an angle opposite to the direction. The two ends of the magnetic core are connected with the first fixing plate and the second fixing plate respectively, meanwhile, the coil is installed on the magnetic core so that the function of the inductor can be achieved, one end of the magnetic core is rotationally installed on the first fixing plate, the other end of the magnetic core is detachably connected with the second fixing plate, and therefore the magnetic core can be rapidly installed conveniently; and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to a combined inductor with a hybrid magnetic circuit. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only impedes the change of current. With the increasing development of the electronics industry towards high integration, miniaturization, and low cost, reducing the installation area of electronic components and modules, as well as the miniaturization and low cost of the electronic components themselves, has become one of the means to reduce the volume and weight of terminal devices.

[0003] Traditional inductor combinations usually need to use connecting pieces to connect two or even more inductors together to form a combined inductor, so as to improve the connection strength between the inductor and the circuit board and enhance the anti-vibration performance of the circuit board. However, the connecting pieces are mostly thin sheets, and since the connecting pieces only contact one side of the inductor, the binding force on the inductor is limited, making the combined inductor relatively loose. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a combined inductor with a hybrid magnetic circuit, which solves the problem of the insecure combination of multiple inductors.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined inductor with a hybrid magnetic circuit includes a magnetic core and a coil, and further includes a first fixing plate and a second fixing plate. One end of the magnetic core is rotatably connected to the first fixing plate, the coil is wound around the iron core, and the other end of the magnetic core is detachably connected to the second fixing plate. Rotating the magnetic core in one direction can fix the end of the magnetic core to the second fixing plate, and rotating the magnetic core in the opposite direction by an angle can separate it from the second fixing plate.

[0007] By adopting the above technical solutions: both ends of the magnetic core are respectively connected with a first fixing plate and a second fixing plate. At the same time, a coil is installed on the magnetic core to realize the function of the inductor. One end of the magnetic core is rotatably installed on the first fixing plate, and the other end is detachably connected to the second fixing plate, which is convenient for the quick installation of the magnetic core. The inductance main body is restricted by the two fixing plates, improving the stability.

[0008] One end of the magnetic core is fixedly provided with a rotary joint, the top of the rotary joint is connected with a retaining piece, the second fixing plate is provided with a first connection hole and a second connection hole corresponding to the rotary joint. A positioning cap for limiting the retaining piece is arranged in the first connection hole, a pull rod is axially slidably and circumferentially fixedly connected in the second connection hole, one end of the pull rod is fixedly connected with the positioning cap, and a spring is arranged on the pull rod outside the second fixing plate.

[0009] By adopting the above technical solution: the second fixing plate is provided with a first connection hole and a second connection hole, and the first connection hole is communicated with the second connection hole. A positioning cap is installed in the first connection hole for connection, and a pull rod is installed in the second connection hole. The positioning cap is used to connect the rotary joint, and the pull rod pulls the rotary joint inward in the first connection hole under the action of the spring, thereby ensuring the connection effect between the positioning cap and the rotary joint, and the magnetic core will not shake after installation, fully ensuring the installation stability of the magnetic core.

[0010] The retaining plates are arranged in pairs and symmetrically centered. The positioning cap is cylindrical and has a ring-shaped limiting rib on the mouth of the positioning cap. A notch corresponding to the retaining plate is formed on the limiting rib, so that the retaining plate can be inserted into the positioning cap from the notch, and the rotary joint is rotated by an angle so that the retaining plate abuts against the inner side of the limiting rib.

[0011] By adopting the above technical solution: the rotary joint is provided with a retaining plate, and the positioning cap is provided with a limiting rib. The retaining plate passes through the notch on the limiting rib and reaches inside the positioning cap, so that the retaining plate originally located outside the limiting rib enters the positioning cap and abuts against the inner wall of the limiting rib, realizing the connection between the rotary joint and the positioning cap.

[0012] A retaining ring is connected to the end of the pull rod away from the positioning cap, and the spring is sleeved on the pull rod. One end of the spring abuts against the outer vertical surface of the second fixing plate, and the other end abuts against the retaining ring.

[0013] By adopting the above technical solution: one end of the spring is connected to the retaining ring, and the retaining ring and the second fixing plate are used to limit the position of the spring. Under the action of the spring, the pull rod can continuously have an upward traction force.

[0014] The height of the positioning cap is less than the depth of the first connection hole.

[0015] By adopting the above technical solution: the rotary joint is connected to the positioning cap, and under the traction of the pull rod, the magnetic core can be closely attached to the second fixing plate, ensuring reliability.

[0016] Insulating plates are respectively installed between the first fixing plate, the second fixing plate and the two ends of the magnetic core. Leads are left on the coil, and a wire bundling hole for the leads to pass through is formed on the first fixing plate.

[0017] By adopting the above technical solution: ensure the reliability of the inductor.

[0018] The technical effects and advantages of the present utility model:

[0019] 1. In this solution, the two ends of the magnetic core are respectively connected to the first fixing plate and the second fixing plate. At the same time, a coil is installed on the magnetic core to realize the function of the inductor. One end of the magnetic core is rotatably installed on the first fixing plate, and the other end is detachably connected to the second fixing plate, which facilitates the quick installation of the magnetic core. The inductor body is constrained by the two fixing plates, improving the stability.

[0020] 2. In this solution, the second fixing plate is provided with a first connection hole and a second connection hole, and the first connection hole is communicated with the second connection hole. A positioning cap is installed in the first connection hole, and a pull rod is installed in the second connection hole. The positioning cap is used to connect the rotary joint, and the pull rod pulls the rotary joint inward in the first connection hole under the action of the spring, thereby ensuring the connection effect between the positioning cap and the rotary joint. After the magnetic core is installed, there will be no shaking, fully ensuring the installation stability of the magnetic core. Description of the Drawings

[0021] Figure 1 is the three-dimensional view of the combined inductor with a hybrid magnetic circuit provided by the present utility model;

[0022] Figure 2 is the structural diagram of the magnetic core and the first fixing plate in the embodiment of the present utility model;

[0023] Figure 3 is the three-dimensional view of the magnetic core in the embodiment of the present utility model;

[0024] Figure 4 is the three-dimensional view of the first fixing plate in the embodiment of the present utility model;

[0025] Figure 5 is the three-dimensional view of the positioning cap in the embodiment of the present utility model;

[0026] Figure 6 is Figure 2 the cross-sectional view of.

[0027] Reference numerals: 1, first fixing plate; 2, magnetic core; 3, second fixing plate; 301, first connection hole; 302, second connection hole; 4, insulating plate; 5, rotary joint; 501, retaining piece; 6, positioning cap; 601, limiting rib; 602, notch; 7, pull rod; 8, retaining ring; 9, spring; 10, rotating shaft; 11, coil; 1101, lead wire. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment

[0030] This embodiment provides a combined inductor of a hybrid magnetic circuit as shown in Figure 1 The combined inductor includes a first fixing plate 1 and a second fixing plate 3. There is a magnetic core 2 and a coil 11 between the first fixing plate 1 and the second fixing plate 3. One end of the magnetic core 2 is rotatably connected to the first fixing plate 1. The structure adopted in this embodiment can be as shown in Figure 6 As shown, a rotating shaft 10 is connected to the bottom end of the magnetic core 2. The outer end of the rotating shaft 10 and the second fixing plate 3 can achieve a rotating connection effect through an existing rotating part. Furthermore, this end of the magnetic core 2 can be inserted into the rotating shaft 10 or made into the shape of the rotating shaft 10 to be rotatably connected to the first fixing plate 1. At the same time, the coil 11 is wound around the iron core. The other end of the magnetic core 2 is detachably connected to the second fixing plate 3. Rotating the magnetic core 2 in one direction can fix this end of the magnetic core 2 to the second fixing plate 3. Rotating the magnetic core 2 in the opposite direction by an angle can separate it from the second fixing plate 3.

[0031] Both ends of the above-mentioned magnetic core 2 are respectively connected to the first fixing plate 1 and the second fixing plate 3. At the same time, a coil 11 is installed on the magnetic core 2 to realize the function of the inductor. One end of the magnetic core 2 is rotatably installed on the first fixing plate 1, and the other end is detachably connected to the second fixing plate 3, which is convenient for the quick installation of the magnetic core 2. The inductor body is restricted by two fixing plates to improve stability.

[0032] Specifically, as shown in Figure 2 and 3 As shown, a rotary joint 5 is fixedly provided at one end of the magnetic core 2. A retaining piece 501 is connected to the top end of the rotary joint 5. A first connection hole 301 and a second connection hole 302 corresponding to the rotary joint 5 are opened on the second fixing plate 3. A positioning cap 6 for limiting the retaining piece 501 is provided in the first connection hole 301. A pull rod 7 is axially slidably and circumferentially fixedly connected in the second connection hole 302. In this embodiment, a pull rod 7 with a special-shaped cross-section and a second connection hole 302 matching the pull rod 7 can be used to realize the axially sliding and circumferentially fixed connection of the pull rod 7 along the second connection hole 302. The special-shaped cross-section includes but is not limited to an elliptical cross-section, a rectangular cross-section, a polygonal cross-section, and a spline cross-section.

[0033] Furthermore, one end of the draw rod 7 is fixedly connected to the positioning cap 6. A spring 9 is provided on the draw rod 7 outside the second fixing plate 3. Since the first connection hole 301 and the second connection hole 302 are provided on the second fixing plate 3 and the first connection hole 301 communicates with the second connection hole 302, the positioning cap 6 is installed in the first connection hole 301 for connection, and the draw rod 7 is installed in the second connection hole 302. The positioning cap 6 is used to connect the rotary joint 5, and the draw rod 7 pulls the rotary joint 5 inward in the first connection hole 301 under the action of the spring 9, thereby ensuring the connection effect between the positioning cap 6 and the rotary joint 5, and the magnetic core 2 will not shake after installation, fully ensuring the installation stability of the magnetic core 2.

[0034] Furthermore, as Figure 4 shown, the retaining plates 501 are arranged in pairs and symmetrically centered. The positioning cap 6 is cylindrical and has a ring-shaped limiting rib 601 at the mouth of the positioning cap 6. A notch 602 corresponding to the retaining plate 501 is provided on the limiting rib 601, so that the retaining plate 501 can be inserted into the positioning cap 6 from the notch 602, and the rotary joint 5 is rotated by an angle so that the retaining plate 501 abuts against the inner side of the limiting rib 601.

[0035] As Figure 3 shown, the rotary joint 5 is provided with a retaining plate 501, and the positioning cap 6 is provided with a limiting rib 601. The retaining plate 501 passes through the notch 602 on the limiting rib 601 and reaches inside the positioning cap 6, so that the retaining plate 501 originally located outside the limiting rib 601 enters the positioning cap 6 and abuts against the inner wall of the limiting rib 601, realizing the connection between the rotary joint 5 and the positioning cap 6.

[0036] As Figure 2 and 5 shown, a retaining ring 8 is connected to the end of the draw rod 7 away from the positioning cap 6. The spring 9 is sleeved on the draw rod 7. One end of the spring 9 abuts against the outer surface of the second fixing plate 3, and the other end abuts against the retaining ring 8. It can be seen that one end of the spring 9 is connected to the retaining ring 8, and the retaining ring 8 and the second fixing plate 3 are used to limit the position of the spring 9. Under the action of the spring 9, the draw rod 7 can continuously have an upward pulling force.

[0037] To ensure the reliability of the installation of the magnetic core 2, the height of the positioning cap 6 is less than the depth of the first connection hole 301. Since the magnetic core 2 and the second fixing plate 3 are connected through the rotary joint 5 and the positioning cap 6, if the positioning cap 6 is higher than the depth of the first connection hole 301, the end face of the magnetic core 2 cannot fit with the second fixing plate 3, and thus it will shake and lose stability. In this embodiment, the positioning cap 6 is buried in the first connection hole 301, and then under the traction of the draw rod 7, the magnetic core 2 can be closely attached to the second fixing plate 3, ensuring reliability.

[0038] Specifically, insulating plates 4 are respectively installed between the two ends of the first fixed plate 1, the second fixed plate 3 and the magnetic core 2. A lead 1101 is left on the coil 11, and a wire bundling hole for the lead 1101 to pass through is formed on the first fixed plate 1, thereby ensuring the reliability of the inductor.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined inductor with a hybrid magnetic circuit, comprising a magnetic core (2) and a coil (11), characterized in that, It includes a first fixed plate (1) and a second fixed plate (3). One end of the magnetic core (2) is rotatably connected to the first fixed plate (1). The coil (11) is wound around the iron core. The other end of the magnetic core (2) is detachably connected to the second fixed plate (3). Rotating the magnetic core (2) in one direction can make this end of the magnetic core (2) fixedly connected to the second fixed plate (3), and rotating the magnetic core (2) counterclockwise by an angle can separate it from the second fixed plate (3).

2. The combined inductor with a hybrid magnetic circuit according to claim 1, characterized in that, One end of the magnetic core (2) is fixedly provided with a rotary joint (5). A retaining piece (501) is connected to the top of the rotary joint (5). A first connection hole (301) and a second connection hole (302) corresponding to the rotary joint (5) are formed in the second fixed plate (3). A positioning cap (6) for limiting the retaining piece (501) is arranged in the first connection hole (301). A pull rod (7) is axially slidably and circumferentially fixedly connected in the second connection hole (302). One end of the pull rod (7) is fixedly connected to the positioning cap (6). A spring (9) is arranged on the pull rod (7) outside the second fixed plate (3).

3. The combined inductor with a hybrid magnetic circuit according to claim 2, wherein The retaining pieces (501) are arranged in pairs and symmetrically centered. The positioning cap (6) is in a cylindrical shape and has a ring-shaped limiting rib (601) at the opening of the positioning cap (6). A notch (602) corresponding to the retaining piece (501) is formed in the limiting rib (601), so that the retaining piece (501) can be inserted into the positioning cap (6) from the notch (602), and the rotary joint (5) is rotated by an angle so that the retaining piece (501) abuts against the inner side of the limiting rib (601).

4. The combined inductor with a hybrid magnetic circuit according to claim 3, wherein A retaining ring (8) is connected to the end of the pull rod (7) away from the positioning cap (6). The spring (9) is sleeved on the pull rod (7). One end of the spring (9) abuts against the outer vertical surface of the second fixed plate (3), and the other end abuts against the retaining ring (8).

5. The combined inductor with a hybrid magnetic circuit according to claim 4, characterized in that, The height of the positioning cap (6) is less than the depth of the first connection hole (301).

6. The combined inductor with a hybrid magnetic circuit according to claim 1 or 4 or 5, characterized in that Insulating plates (4) are respectively installed between the first fixed plate (1), the second fixed plate (3) and the two ends of the magnetic core (2). A lead wire (1101) is left on the coil (11). A wire bundling hole for the lead wire (1101) to pass through is formed in the first fixed plate (1).

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