Vibration-resistant t-core inductor

Abstract

Anti-vibration T-core inductor. Relates to the field of inductors. It comprises a base and a boss arranged at the top center of the base, the outer side of the boss is provided with a coil, the coil comprises a body and two pins, the two pins are bent to be in contact with the bottom of the base, the bottom of the base is provided with a through slot between the two pins; a plug is fitted in the through slot, a cover plate is arranged above the plug, a plurality of elastic bodies are arranged between the cover plate and the plug, and the cover plate is flush with the slot of the through slot. The base of the application is provided with a plug, a cover plate and an elastic body in the through slot at the bottom, which can offset the vibration generated during installation and use, reduce the risk of coil loosening or falling off.

Description

Technical Field

[0001] This application relates to the field of inductors, specifically to an anti-vibration T-core inductor. Background Technology

[0002] T-Core inductors are one-piece molded surface mount inductors that use advanced manufacturing processes to achieve ultra-thin, small-size designs, making them ideal for the miniaturization and integration needs of modern electronic products.

[0003] Chinese patent document CN216698054U discloses an inductor that can improve tensile strength, including a substrate, a T-shaped iron core, and a flat coil. The substrate is made of magnetic powder and covers the outside of the T-shaped iron core and the flat coil. The T-shaped iron core includes a base plate and a cylindrical protrusion. The flat coil is wound on the cylindrical protrusion. The base plate has a notch at each of its four corners. Each notch has a slope of a certain angle A at the bend of the flat coil, which is inclined upwards to one side of the solid. This effectively increases the pull-out reaction force when the bend is wound at that point. This patent can effectively improve the pull-out reaction force while avoiding the risk of short circuit.

[0004] However, the aforementioned patents are insufficient to counteract the vibrations generated during installation and use, which could lead to the risk of the coil becoming loose or falling off. Utility Model Content

[0005] To overcome the problem of weak vibration resistance of inductors in the prior art, this application provides a vibration-resistant T-core inductor.

[0006] This application adopts the following technical solution: an anti-vibration T-core inductor, including a base and a boss, the boss being disposed at the top center of the base, a coil being wound around the outside of the boss, the coil including a body and two pins, the two pins being bent to fit against the bottom of the base, the bottom of the base being provided with a through groove, the through groove being located between the two pins;

[0007] An insert plate is adapted to be provided in the through groove, and a cover plate is provided above the insert plate. Several elastic bodies are provided between the cover plate and the insert plate, and the cover plate is flush with the opening of the through groove.

[0008] Optionally, the through groove extends through the base along the width direction of the base, the inner diameter of the through groove gradually increases from top to bottom, the outer wall of the insert plate fits against the inner wall of the through groove, and the insert plate is inserted into the through groove along the width direction of the base.

[0009] Optionally, the groove opening is provided with a beveled surface, and there is a distance between the top of the cover plate and the beveled surface.

[0010] Optionally, the bottom of the cover plate is provided with a retaining ring, and the top of the insert plate is provided with a pressing groove. Both the retaining ring and the pressing groove are square rings. The retaining ring is adapted to be inserted into the pressing groove. The height of the retaining ring is less than the depth of the pressing groove, and the outer wall of the retaining ring is in contact with the inner wall of the pressing groove.

[0011] Optionally, a pair of receiving grooves are provided symmetrically on both sides of the through groove at the bottom of the base. The end of the receiving groove near the bend of the pin is connected to the side wall of the base, and the pin can be folded into the receiving groove.

[0012] Optionally, the inner diameter of the receiving groove gradually decreases from top to bottom, and a filling strip is provided at the bottom of the base and outside the opening of the receiving groove. The filling strip is used to fill the gap between the needle and the receiving groove after hot pressing.

[0013] Optionally, a slot is provided on both sides of the opening of the receiving groove, the slot extends along the length direction of the receiving groove, and an insert is provided at the bottom of the filling strip, the insert being adapted to be inserted into the insert;

[0014] The base is provided with several retention holes on one side that is connected to the end of the receiving groove. The retention holes are used for the base to deform during hot pressing.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The base is equipped with a slotted plate, cover plate and elastomer to counteract vibrations generated during installation and use, reducing the risk of coil loosening or falling off;

[0017] 2. The inner diameter of the through groove gradually increases from top to bottom, and the outer wall of the insert plate fits against the inner wall of the through groove, so that the insert plate is stably set in the through groove;

[0018] 3. The receiving groove allows the pins to be folded in, and the filler strip is filled in the gap between the pins and the receiving groove after hot pressing, which enhances the stability of the inductor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this application;

[0020] Figure 2 This is a reference diagram showing the explosion state of the base;

[0021] Figure 3 This is a cross-sectional view of the internal structure of the base;

[0022] Figure 4 This is a reference diagram showing the exploded state of the filler strip and the base;

[0023] In the diagram: 1. Base; 11. Through groove; 110. Beveled surface; 12. Receiving groove; 13. Slot; 14. Placement hole; 2. Boss; 3. Coil; 31. Body; 32. Pin; 4. Insert plate; 40. Pressing groove; 5. Cover plate; 50. Retaining ring; 6. Elastomer; 7. Filler strip; 70. Insert strip. Detailed Implementation

[0024] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] like Figures 1-4 As shown, the vibration-resistant T-core inductor includes a base 1 and a boss 2. The boss 2 is located at the top center of the base 1, so that the boss 2 can be firmly placed on the base 1, providing a stable support structure for the subsequent winding of the coil 3. The coil 3 is wound on the outside of the boss 2. The coil 3 includes a body 31 and two pins 32. The two pins 32 are bent to fit against the bottom of the base 1. Then, the base 1, the boss 2 and the coil 3 are hot-pressed to complete the inductor processing.

[0026] The base 1 has a through groove 11 at its bottom, located between two pins 32. The through groove 11 extends through the base 1 along its width, and its inner diameter gradually increases from top to bottom. This facilitates the insertion of the insert plate 4 into the through groove 11 and ensures a tight fit between the insert plate 4 and the inner wall of the through groove 11. The opening of the through groove 11 has a beveled surface 110. This beveled surface 110 not only facilitates the insertion of the insert plate 4 but also guides it to accurately enter the through groove 11. Furthermore, during the hot pressing process of the coil 3, the base 1 deforms at the beveled surface 110, thus reliably fitting against the cover plate 5. The insert plate 4 is fitted within the through groove 11, with its outer wall fitting against the inner wall of the through groove 11. The insert plate 4 is inserted into the through groove 11 along the width of the base 1. A cover plate 5 is provided above the insert plate 4, and several elastic bodies 6 are disposed between the cover plate 5 and the insert plate 4. The cover plate 5 is flush with the opening of the through groove 11. The elastic bodies 6 can be elastic components such as springs or rubber blocks. Taking a spring as an example, one end of the spring is connected to the insert plate 4, and the other end is connected to the cover plate 5. When the inductor vibrates, the spring will stretch and deform, thereby absorbing and buffering the vibration energy and reducing the impact of vibration on the coil 3. The function of the cover plate 5 is to protect the elastic bodies 6, and it also plays a certain limiting role to prevent the elastic bodies 6 from excessively deforming.

[0027] The bottom of the cover plate 5 is provided with a retaining ring 50, and the top of the insert plate 4 is provided with a pressing groove 40. Both the retaining ring 50 and the pressing groove 40 are square rings. The retaining ring 50 is fitted into the pressing groove 40, and the height of the retaining ring 50 is less than the depth of the pressing groove 40. The outer wall of the retaining ring 50 fits against the inner wall of the pressing groove 40. The cooperation between the retaining ring 50 and the pressing groove 40 further enhances the connection stability between the insert plate 4 and the cover plate 5. At the same time, it can also play a certain role in protecting and limiting the elastic body 6, preventing the elastic body 6 from shifting or being damaged during vibration. Furthermore, the setting of the retaining ring 50 can prevent the base 1 from extending between the cover plate 5 and the insert plate 4 during deformation, thereby ensuring that the elastic body 6 can reliably improve the elastic support force.

[0028] A pair of receiving slots 12 are symmetrically arranged at the bottom of the base 1, on both sides of the through slot 11. One end of the receiving slot 12 near the bend of the pin 32 communicates with the side wall of the base 1, allowing the pin 32 to be folded into the receiving slot 12. The receiving slot 12 provides installation space for the pin 32, enabling it to be arranged more neatly at the bottom of the base 1 and preventing mutual interference or loosening during inductor installation and use. The inner diameter of the receiving slot 12 gradually decreases from top to bottom, allowing the pin 32 to better fit the inner wall of the receiving slot 12 when inserted, improving the pin 32's fixation effect.

[0029] A filler strip 7 is provided at the bottom of the base 1 and outside the opening of the receiving groove 12. The filler strip 7 is used to fill the gap between the needle 32 and the receiving groove 12 after hot pressing. The material of the filler strip 7 is the same as that of the base 1. During the hot pressing process, the filler strip 7 will loosen and fill the gap between the needle 32 and the receiving groove 12, further enhancing the fixing effect of the needle 32 and preventing the needle 32 from loosening. A slot 13 is provided on both sides of the opening of the receiving groove 12. The slot 13 extends along the length of the receiving groove 12. The bottom of the filler strip 7 is provided with an insert 70, which is fitted into the slot 13. The cooperation between the slot 13 and the insert 70 allows the filler strip 7 to be accurately installed on the outside of the opening of the receiving groove 12, ensuring that the filler strip 7 can effectively fill the gap during the hot pressing process.

[0030] The implementation principle of this embodiment is as follows: by setting a through groove 11 at the bottom of the base 1, and installing the insert plate 4, cover plate 5 and elastomer 6 in the through groove 11, the elastic deformation of the elastomer 6 is used to absorb and buffer the vibration energy generated by the inductor during installation and use, thereby effectively offsetting the impact of vibration on the coil 3 and reducing the risk of the coil 3 becoming loose or falling off.

[0031] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. An anti-vibration T-core inductor, comprising a base (1) and a boss (2), wherein the boss (2) is disposed at the top center of the base (1), and a coil (3) is wound around the outer side of the boss (2), the coil (3) comprising a body (31) and two pins (32), the two pins (32) being bent to fit against the bottom of the base (1), characterized in that, The base (1) has a through groove (11) at its bottom, which is located between the two pins (32). A plate (4) is adapted to be installed in the through groove (11), and a cover plate (5) is installed above the plate (4). A plurality of elastic bodies (6) are provided between the cover plate (5) and the plate (4), and the cover plate (5) is flush with the opening of the through groove (11).

2. The vibration-resistant T-core inductor according to claim 1, characterized in that, The through groove (11) extends through the base (1) along the width direction. The inner diameter of the through groove (11) gradually increases from top to bottom. The outer wall of the insert plate (4) fits against the inner wall of the through groove (11). The insert plate (4) is inserted into the through groove (11) along the width direction of the base (1).

3. The vibration-resistant T-core inductor according to claim 2, characterized in that, The groove (11) has a beveled surface (110) at its opening, and there is a distance between the top of the cover plate (5) and the beveled surface (110).

4. The vibration-resistant T-core inductor according to claim 3, characterized in that, The bottom of the cover plate (5) is provided with a retaining ring (50), and the top of the insert plate (4) is provided with a pressing groove (40). Both the retaining ring (50) and the pressing groove (40) are square rings. The retaining ring (50) is inserted into the pressing groove (40) in a suitable manner. The height of the retaining ring (50) is less than the depth of the pressing groove (40). The outer wall of the retaining ring (50) is in contact with the inner wall of the pressing groove (40).

5. The vibration-resistant T-core inductor according to claim 1, characterized in that, A pair of receiving grooves (12) are symmetrically provided at the bottom of the base (1) and on both sides of the through groove (11). One end of the receiving groove (12) near the bend of the pin (32) is connected to the side wall of the base (1), and the pin (32) can be folded into the receiving groove (12).

6. The vibration-resistant T-core inductor according to claim 5, characterized in that, The inner diameter of the receiving groove (12) gradually decreases from top to bottom. A filling strip (7) is provided at the bottom of the base (1) and outside the groove of the receiving groove (12). The filling strip (7) is used to fill the gap between the needle (32) and the receiving groove (12) after hot pressing.

7. The vibration-resistant T-core inductor according to claim 6, characterized in that, The receiving groove (12) has a slot (13) on both sides of the groove opening. The slot (13) extends along the length direction of the receiving groove (12). The bottom of the filling strip (7) is provided with an insert (70). The insert (70) is adapted to be inserted into the insert (70). The base (1) is provided with a plurality of retention holes (14) on one side that is connected to the end of the receiving groove (12). The retention holes (14) are used for the base (1) to deform during hot pressing.

Images