Annular inductor without pins

Abstract

The utility model relates to the technical field of inductors, and discloses a pin-free annular inductor which comprises a base, four straight notches arranged in a matrix mode are formed in the front face of the base, a jack penetrating through the base is formed in each straight notch, and winding ends are inserted into the four jacks; a fixing cavity is formed in the front face of the base, communicating cavities are formed in the inner bottom walls of the two uppermost straight notches, and an extrusion assembly is arranged in the fixing cavity. According to the pin-free annular inductor, by rotating a rotating plate, the purpose that two extrusion blocks are driven to extrude two moving rods can be achieved, the effect that the moving rods drive fixing arcs to fix the winding end is achieved, the installation speed is effectively increased, a limiting rod is inserted into a limiting block, and the limiting rod is in interference fit with a limiting sleeve, so that the pin-free annular inductor is convenient to install. And the purpose of limiting the rotating plate can be achieved, then the effect of limiting the moving rod is achieved, and the stability when the winding end is fixed is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of inductors, and specifically to a leadless toroidal inductor. Background Art

[0002] An inductor is a property of a closed loop and is a physical quantity. When current passes through a coil, a magnetic field induction is formed in the coil, and the induced magnetic field will generate an induced current to resist the current passing through the coil. It is a circuit parameter that describes the effect of induced electromotive force caused by the change of coil current in the same coil or in another coil.

[0003] A prior patent (publication number: CN215342206U) discloses a toroidal inductor, including a base and an inductor body disposed on the base. A plurality of winding ends are formed on the inductor body. The base is formed with through holes that penetrate to the bottom and are used for the winding ends to penetrate. The winding ends are formed with bending portions at the positions where they penetrate out of the through holes. By the bending portions of the winding ends abutting against the bottom surface of the base, the position of the inductor body is fixed. The inductor is installed by directly inserting the protruding winding ends into the circuit board for welding, thereby eliminating the design of the base pins. Through the toroidal inductor with this structure, the production process of the winding ends of the inductor bypassing the side of the base and then welding with the pins of the base can be reduced, and high-efficiency automated production can be achieved through equipment, reducing production costs while improving production efficiency.

[0004] During the installation of the above toroidal inductor, the inductor is installed by directly inserting the protruding winding ends into the circuit board for welding, thereby eliminating the design of the base pins. However, during the installation process, when the worker welds the pins, the worker needs to have certain welding experience. After using it for a certain period of time, there is a risk of solder joint detachment at the welding point. Secondly, fixing by welding has low efficiency. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, this application provides a leadless toroidal inductor, which has the advantages of being easy to disassemble and assemble, etc., and solves the problems that the worker needs to have certain welding experience, there is a risk of solder joint detachment at the welding point after using it for a certain period of time, and secondly, fixing by welding has low efficiency.

[0006] To achieve the above object, this application provides the following technical solution: A leadless toroidal inductor includes a base. Four straight slots arranged in a matrix are opened on the front surface of the base. A through hole penetrating the base is opened inside each straight slot. Four winding ends are inserted into the four through holes;

[0007] A fixing cavity is opened on the front surface of the base. Communication cavities are opened on the inner bottom walls of the two uppermost straight slots. An extrusion component is arranged inside the fixing cavity;

[0008] The extrusion assembly includes a rotating plate, two extrusion blocks and a rotating shaft;

[0009] A fixing assembly is provided inside each of the straight notches;

[0010] Each fixing assembly includes a fixing arc, a slider and a moving rod.

[0011] Through the above solution, by rotating the rotating plate, the purpose of driving the two extrusion blocks to extrude the two moving rods can be achieved, and the effect of the moving rod driving the fixing arc to fix the winding end is achieved, effectively improving the installation speed. By inserting the limiting rod into the limiting block and making the limiting rod in interference fit with the limiting sleeve, the purpose of limiting the rotating plate can be achieved, and further the limiting effect on the moving rod is achieved, effectively improving the stability during the fixing of the winding end.

[0012] Further, the rear end of the rotating shaft is rotatably connected to the inner rear wall of the fixing cavity, the rotating plate is fixedly connected to the rotating shaft, and the two extrusion blocks are both fixedly connected to the rotating plate.

[0013] Through the above solution, through the setting of the rotating shaft, the purpose of driving the extrusion block to perform circular motion can be achieved.

[0014] Further, each moving rod is inserted into the base, each slider is slidably connected to the straight notch closest to it, each moving rod is fixedly connected to the slider closest to it, each fixing arc is fixedly connected to the slider closest to it, and the end of each moving rod close to the fixing cavity is provided with a rounded corner.

[0015] Through the above solution, through the setting of the moving rod, the purpose of driving the fixing arc to fix the winding end can be achieved.

[0016] Further, a synchronous plate is fixedly connected between every two adjacent moving rods, and each synchronous plate is located inside the communication cavity closest to it.

[0017] Through the above solution, through the setting of the synchronous plate, the purpose of synchronous movement of the four moving rods can be achieved.

[0018] Further, a cover plate is hinged to the front of the base, and the cover plate is located above the fixing cavity.

[0019] Through the above solution, through the setting of the cover plate, the purpose of protecting the fixing cavity can be achieved.

[0020] Further, the inner walls of the four fixing arcs are all set as rough surfaces.

[0021] Through the above solution, by setting the inner walls of the fixing arcs as rough surfaces, the frictional resistance between the winding end can be increased, effectively improving the fixing stability.

[0022] Further, a turntable is fixedly connected to the front end of the rotating shaft, and two limiting blocks are fixedly connected to the outer surface of the turntable.

[0023] Through the above solution, the setting of the turntable facilitates the user to rotate the rotating shaft.

[0024] Further, two limiting sleeves are fixedly connected to the inner rear wall of the fixed cavity, and a limiting rod is inserted into each of the limiting sleeves, and the limiting rod is in interference fit with the limiting sleeve close to it.

[0025] Through the above solution, the setting of the limiting rod facilitates the user to fix the limiting block.

[0026] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0027] For the pinless toroidal inductor, by rotating the rotating plate, the purpose of driving two pressing blocks to press two moving rods can be achieved, and the effect that the moving rods drive the fixed arc to fix the winding end is achieved, effectively improving the installation speed. By inserting the limiting rod into the limiting block and making the limiting rod in interference fit with the limiting sleeve, the purpose of limiting the rotating plate can be achieved, and further the limiting effect on the moving rod is achieved, effectively improving the stability when the winding end is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present application;

[0029] Figure 2 is a front view of the overall structure of the present application;

[0030] Figure 3 is a cross-sectional view of the front view of the overall structure of the present application;

[0031] Figure 4 is a cross-sectional view of the side view of the overall structure of the present application.

[0032] In the figure:

[0033] 1, base; 2, straight slot; 3, jack; 4, winding end; 5, fixed cavity; 6, communication cavity; 7, extrusion assembly; 701, rotating plate; 702, pressing block; 703, rotating shaft; 8, fixing assembly; 801, fixed arc; 802, slider; 803, moving rod; 9, synchronous plate; 10, cover plate; 11, turntable; 12, limiting block; 13, limiting sleeve; 14, limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 3 In this embodiment, a leadless toroidal inductor includes a base 1. Four straight slots 2 arranged in a matrix are formed on the front surface of the base 1. A through hole 3 penetrating the base 1 is formed inside each straight slot 2. A winding end 4 is inserted into each of the four through holes 3.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 4 A fixing cavity 5 is formed on the front surface of the base 1. A cover plate 10 is hinged to the front surface of the base 1. The cover plate 10 is located above the fixing cavity 5. Through the arrangement of the cover plate 10, the purpose of protecting the fixing cavity 5 can be achieved. Communication cavities 6 are formed on the inner bottom walls of the two uppermost straight slots 2. An extrusion assembly 7 is arranged inside the fixing cavity 5.

[0037] Please refer to Figure 2 、 Figure 3 and Figure 4 The extrusion assembly 7 includes a rotating plate 701, two extrusion blocks 702 and a rotating shaft 703. The rear end of the rotating shaft 703 is rotatably connected to the inner rear wall of the fixing cavity 5. The rotating plate 701 is fixedly connected to the rotating shaft 703. Both extrusion blocks 702 are fixedly connected to the rotating plate 701. Through the arrangement of the rotating shaft 703, the purpose of driving the extrusion blocks 702 to perform circular motion can be achieved. The front end of the rotating shaft 703 is fixedly connected to a turntable 11. Two limiting blocks 12 are fixedly connected to the outer surface of the turntable 11. Through the arrangement of the turntable 11, it is convenient for the user to rotate the rotating shaft 703.

[0038] A fixing assembly 8 is arranged inside each straight slot 2.

[0039] Please refer to Figure 1 、 Figure 2 and Figure 3, each fixing component 8 includes a fixing arc 801, a slider 802, and a moving rod 803. Each moving rod 803 is inserted into the base 1. Each slider 802 is slidably connected to the straight notch 2 adjacent to it. Each moving rod 803 is fixedly connected to the slider 802 adjacent to it. Each fixing arc 801 is fixedly connected to the slider 802 adjacent to it. One end of each moving rod 803 close to the fixing cavity 5 is rounded. Through the setting of the moving rod 803, the purpose of driving the fixing arc 801 to fix the winding end 4 can be achieved.

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 , a synchronizing plate 9 is fixedly connected between every two adjacent moving rods 803. Each synchronizing plate 9 is located inside the communicating cavity 6 adjacent to it. Through the setting of the synchronizing plate 9, the purpose of synchronously moving the four moving rods 803 can be achieved. The inner walls of the four fixing arcs 801 are all set as rough surfaces. By setting the inner walls of the fixing arcs 801 as rough surfaces, the frictional resistance between the winding end 4 can be increased, effectively improving the fixing stability.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 , two limiting sleeves 13 are fixedly connected to the inner rear wall of the fixing cavity 5. A limiting rod 14 is inserted into each limiting sleeve 13. The limiting rod 14 is in interference fit with the limiting sleeve 13 adjacent to it. Through the setting of the limiting rod 14, it is convenient for the user to fix the limiting block 12.

[0042] In a pinless toroidal inductor of this embodiment, by rotating the rotating plate 701, the purpose of driving two pressing blocks 702 to press two moving rods 803 can be achieved, achieving the effect that the moving rods 803 drive the fixing arcs 801 to fix the winding end 4, effectively improving the installation speed. By inserting the limiting rod 14 into the limiting block 12 and making the limiting rod 14 in interference fit with the limiting sleeve 13, the purpose of limiting the rotating plate 701 can be achieved, and then the limiting effect on the moving rods 803 is achieved, effectively improving the stability when the winding end 4 is fixed.

[0043] The working principle of the above embodiment is as follows: When in use, the winding end 4 is inserted into the jack 3, and then the limiting block 12 is rotated to drive the turntable 11 to rotate. During the rotation of the turntable 11, the rotating shaft 703 is driven to rotate. The rotating shaft 703 drives the rotating plate 701 and the pressing block 702 to rotate. The pressing block 702 presses the two moving rods 803 to move. The moving rods 803 drive the adjacent moving rods 803 to move through the synchronous plate 9, so that the fixed arc 801 clamps and fixes the winding end 4 under the limitation of the guiding block. Subsequently, the limiting rod 14 is inserted into the limiting block 12 and inserted into the limiting cylinder. Immediately afterwards, the cover plate 10 is closed, effectively improving the installation efficiency and facilitating the subsequent replacement of the coil.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0045] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pinless toroidal inductor, comprising a base (1), characterized in that: The front side of the base (1) is provided with four straight slots (2) arranged in a matrix, each straight slot (2) is provided with a plug hole (3) penetrating the base (1), and the four plug holes (3) are each plugged with a winding end (4); A fixing cavity (5) is provided on the front of the base (1), and a connecting cavity (6) is provided on the inner bottom walls of the two uppermost straight slots (2), and an extrusion assembly (7) is provided inside the fixing cavity (5); The extrusion assembly (7) comprises a rotating plate (701), two extrusion blocks (702) and a rotating shaft (703); A fixing component (8) is provided inside each straight slot (2); Each of the fixing components (8) comprises a fixing arc (801), a sliding block (802), and a moving rod (803).

2. The leadless toroidal inductor according to claim 1, characterized in that: The rear end of the rotating shaft (703) is rotatably connected to the inner rear wall of the fixed cavity (5), the rotating plate (701) is fixedly connected to the rotating shaft (703), and the two extrusion blocks (702) are both fixedly connected to the rotating plate (701).

3. The leadless toroidal inductor according to claim 1, characterized in that: Each of the movable rods (803) is plugged into the base (1), each of the sliders (802) is slidably connected to the adjacent straight slot (2), each of the movable rods (803) is fixedly connected to the adjacent slider (802), each of the fixed arcs (801) is fixedly connected to the adjacent slider (802), and one end of each of the movable rods (803) adjacent to the fixed cavity (5) is rounded.

4. The leadless toroidal inductor according to claim 1, characterized in that: A synchronization plate (9) is fixedly connected between each two adjacent moving rods (803), and each synchronization plate (9) is located inside the adjacent communicating cavity (6).

5. The leadless toroidal inductor according to claim 1, characterized in that: A cover plate (10) is hingedly connected to the front side of the base (1), and the cover plate (10) is located above the fixing cavity (5).

6. The leadless toroidal inductor according to claim 1, characterized in that: The inner walls of the four fixed arcs (801) are all set to be rough surfaces.

7. The leadless toroidal inductor according to claim 1, characterized in that: A rotating disk (11) is fixedly connected to the front end of the rotating shaft (703), and two limit blocks (12) are fixedly connected to the outer surface of the rotating disk (11).

8. The leadless toroidal inductor according to claim 1, characterized in that: Two limiting sleeves (13) are fixedly connected to the inner rear wall of the fixing cavity (5), a limiting rod (14) is inserted into the interior of each limiting sleeve (13), and the limiting rod (14) and the limiting sleeve (13) adjacent thereto are in interference fit.

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