Surface mount type variable inductor

Abstract

The utility model discloses a patch type variable inductor, and relates to the technical field of variable inductors. The inductor comprises a base, a magnetic core is fixedly matched with one side of the base, and pins are wound around the periphery of the magnetic core in a matched mode. The winding part is fixedly matched with one side of the base, a T-shaped plate and two T-shaped blocks are elastically and slidably matched with one side of the winding part, an L-shaped plate is fixedly matched with the upper side of the T-shaped plate, and a rotating plate is rotatably matched between one side of the L-shaped plate and one side of each T-shaped block. According to the utility model, through the arrangement of the T-shaped plate, the rotating plate drives one side of the T-shaped plate to slide towards the direction of the base under the action of the T-shaped block, and the pin is positioned on the peripheral side of the winding part through the T-shaped plate, so that the effect of clamping and fixing the pin is achieved, and the problem that the pin falls off from the winding part is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of variable inductors, specifically, it relates to a surface-mount variable inductor. Background Technology

[0002] A variable inductor is an electronic component that changes its inductance by altering the relative position between the magnetic core and the coil. Most existing variable inductors mount the magnetic core on a base, allowing the core to rotate and move up and down relative to the base, thus changing the distance between the core and the coil to alter the inductance.

[0003] Patent application CN222281768U discloses a surface-mount variable inductor. Paragraph 0020 of the specification describes a base with a positioning groove, a mounting base slidably connected within the groove, and a winding post fixedly connected to the mounting base. The winding post and mounting base are integrally formed. To manufacture this inductor, the coil can be wound on the mounting base first, then the mounting base can be slidably connected to the mounting groove, and finally the mounting base and base can be fixed together. A magnetic core can then be screwed into the threaded hole. Furthermore, both sides of the bottom of the base have lead winding sections for winding the coil leads. After the mounting base with the wound coil is slidably inserted into the mounting groove, the coil leads are wound around the lead winding sections. This not only fixes the coil to the base but also allows the coil copper wire to be used as terminals for surface-mount assembly of the inductor and PCB circuitry, thus simplifying the inductor manufacturing and mounting process and making it more environmentally friendly.

[0004] However, in practical applications, it is necessary to wrap one end of the pin with the pin winding part. Since there is no snap-fit ​​structure on one side of the pin winding part, the wound pin is prone to falling off the pin winding part, which in turn causes the pin to be unable to be wound around the pin winding part.

[0005] To address these shortcomings, a surface-mount variable inductor is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a surface-mount variable inductor.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A surface-mount variable inductor includes a base, a magnetic core fixedly fitted on one side of the base, and leads wound around the periphery of the magnetic core;

[0009] A winding part is fixedly fitted on one side of the base. One side of the winding part is elastically and slidably fitted with a T-shaped plate and two T-shaped blocks. An L-shaped plate is fixedly fitted on the upper side of the T-shaped plate. A rotating plate is rotatably fitted between one side of the L-shaped plate and one side of the T-shaped block. Two placement cylinders are fixedly fitted on the upper side of the winding part.

[0010] Optionally, a winding post is fixedly fitted to one side of the base, one end of the magnetic core is fixedly fitted to one side of the winding post, and an adjustment groove is provided at the other end of the magnetic core.

[0011] Optionally, a guide groove is provided on one side of the winding portion, and the T-shaped plate is slidably fitted inside the guide groove.

[0012] Optionally, two first springs are fixedly fitted between one side of the T-shaped plate and one side of the winding portion.

[0013] Optionally, two U-shaped plates are fixedly fitted on the upper side of the winding part, and a T-shaped groove is opened on the upper side of the U-shaped plate, and the T-shaped block is slidably fitted inside the T-shaped groove.

[0014] Optionally, a second spring is fixedly fitted between one side of the T-shaped block and the inner wall of the T-shaped groove.

[0015] Optionally, a first fixing rod is fixedly fitted to one side of the T-shaped block, and a first through hole is opened at the first end of the rotating plate, with the first fixing rod located inside the first through hole.

[0016] Optionally, the upper side of the L-shaped plate is fixedly fitted with two second fixing rods, and the second end of the rotating plate is provided with a second through hole, with the second fixing rods located inside the second through hole.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The T-shaped plate is designed so that the rotating plate, under the action of the T-shaped block, drives one side of the T-shaped plate to slide towards the base. The T-shaped plate positions the pin on the periphery of the winding part, achieving the effect of pin clamping and fixing, and reducing the problem of pin falling off the winding part.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a bottom view of an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the winding part structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of an L-shaped plate structure according to an embodiment of the present invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] Base 100, winding post 101, magnetic core 102, adjusting groove 103, pin 104, winding part 105, guide groove 106, T-shaped plate 107, first spring 108, placement cylinder 109, U-shaped plate 110, T-shaped groove 111, T-shaped block 112, first fixing rod 113, L-shaped plate 114, second fixing rod 115, rotating plate 116, first through hole 117, second through hole 118, second spring 119.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figure 1-4 As shown, this embodiment provides a surface-mount variable inductor, including a base 100, a magnetic core 102 fixedly fitted on one side of the base 100, and pins 104 wound around the periphery of the magnetic core 102.

[0030] A winding portion 105 is fixedly fitted to one side of the base 100. A T-shaped plate 107 and two T-shaped blocks 112 are elastically and slidably fitted to one side of the winding portion 105. An L-shaped plate 114 is fixedly fitted to the upper side of the T-shaped plate 107. A rotating plate 116 is rotatably fitted between one side of the L-shaped plate 114 and one side of the T-shaped block 112. Two placement cylinders 109 are fixedly fitted to the upper side of the winding portion 105.

[0031] Working principle:

[0032] First, place one end of pin 104 inside the placement cylinder 109. Then, pull the T-shaped plate 107. The T-shaped plate 107 drives one end of the L-shaped plate 114 to position pin 104 inside the placement cylinder 109. The L-shaped plate 114 drives the T-shaped block 112 to slide on the upper side of the winding part 105 through the rotating plate 116. Then, the pin 104 is wound around the periphery of the winding part 105. Then, the T-shaped plate 107 is released. The T-shaped plate 107 returns to its original position under the action of elasticity. The pin 104 is wound around the periphery of the winding part 105 through the T-shaped plate 107.

[0033] The T-shaped plate 107 is designed so that the rotating plate 116, under the action of the T-shaped block 112, drives one side of the T-shaped plate 107 to slide towards the base 100. The T-shaped plate 107 positions the pin 104 on the periphery of the winding part 105, thereby achieving the effect of snapping and fixing the pin 104 and reducing the problem of the pin 104 falling off the winding part 105.

[0034] To make the sliding process of the T-shaped block 112 on one side of the U-shaped plate 110 more stable in this embodiment, the following structure is used for improvement, such as... Figure 1-4 As shown, in this embodiment, a winding post 101 is fixedly fitted to one side of the base 100, one end of the magnetic core 102 is fixedly fitted to one side of the winding post 101, and an adjustment groove 103 is provided at the other end of the magnetic core 102. A guide groove 106 is provided on one side of the winding portion 105, and a T-shaped plate 107 is slidably fitted inside the guide groove 106. Two first springs 108 are fixedly fitted between one side of the T-shaped plate 107 and one side of the winding portion 105. Two U-shaped plates 110 are fixedly fitted to the upper side of the winding portion 105, and a T-shaped groove 111 is provided on the upper side of the U-shaped plate 110. The T-shaped block 112 is slidably fitted inside the T-shaped groove 111. A second spring 119 is fixedly fitted between one side of the T-shaped block 112 and the inner sidewall of the T-shaped groove 111. A first fixing rod 113 is fixedly fitted to one side of the T-shaped block 112. A first through hole 117 is opened at the first end of the rotating plate 116. The first fixing rod 113 is located inside the first through hole 117. Two second fixing rods 115 are fixedly fitted on the upper side of the L-shaped plate 114. A second through hole 118 is opened at the second end of the rotating plate 116. The second fixing rod 115 is located inside the second through hole 118.

[0035] In this embodiment, the T-shaped plate 107 is first slid, and the T-shaped plate 107 slides inside the winding part 105 through the guide groove 106. The T-shaped plate 107 drives the T-shaped block 112 to slide inside the T-shaped groove 111 through the L-shaped plate 114 and compress the second spring 119. Then the pin 104 is wound around the periphery of the winding part 105. Then the T-shaped plate 107 is released, and the T-shaped plate 107 is reset under the elastic action of the first spring 108 and the second spring 119, and the pin 104 is fixed by the T-shaped plate 107.

[0036] The T-shaped groove 111 is provided so that the T-shaped block 112 slides inside the T-shaped groove 111 under the action of the rotating plate 116, and the T-shaped groove 111 guides the sliding direction of the T-shaped block 112, reducing the problem of the T-shaped block 112 tilting during sliding and improving the stability of the T-shaped block 112 during sliding.

[0037] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A patch variable inductor, characterized by, Include: The base (100), one side of the base (100) is fixedly matched with the magnetic core (102), and the peripheral side of the magnetic core (102) is wound and matched with the pin (104); The winding part (105) fixedly matched on one side of the base (100) is elastically and slidingly matched with a T-shaped plate (107) and two T-shaped blocks (112) on one side, the upper side of the T-shaped plate (107) is fixedly matched with an L-shaped plate (114), the one side of the L-shaped plate (114) is rotatably matched with a rotating plate (116) on one side of the T-shaped block (112), and the upper side of the winding part (105) is fixedly matched with two placing barrels (109).

2. A patch inductor according to claim 1, wherein One side of the base (100) is fixedly matched with a winding post (101), one end of the magnetic core (102) is fixedly matched on one side of the winding post (101), and the other end of the magnetic core (102) is provided with an adjusting groove (103).

3. A patch inductor according to claim 1, wherein One side of the winding part (105) is provided with a guide groove (106), and the T-shaped plate (107) is slidingly matched in the guide groove (106).

4. A patch inductor according to claim 1, wherein The one side of the T-shaped plate (107) and the one side of the winding part (105) are fixedly matched with two first springs (108).

5. A patch inductor according to claim 1, wherein The upper side of the winding part (105) is fixedly matched with two U-shaped plates (110), the upper side of the U-shaped plate (110) is provided with a T-shaped groove (111), and the T-shaped block (112) is slidingly matched in the T-shaped groove (111).

6. A patch inductor according to claim 5, wherein The one side of the T-shaped block (112) and the inner side wall of the T-shaped groove (111) are fixedly matched with a second spring (119).

7. A patch inductor according to claim 1, wherein The one side of the T-shaped block (112) is fixedly matched with a first fixed rod (113), the first end of the rotating plate (116) is provided with a first through hole (117), and the first fixed rod (113) is located in the first through hole (117).

8. A patch inductor according to claim 1, wherein The upper side of the L-shaped plate (114) is fixedly matched with two second fixed rods (115), the second end of the rotating plate (116) is provided with a second through hole (118), and the second fixed rod (115) is located in the second through hole (118).

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