A large particle low DCR non-curing inductor with good fixing effect

Abstract

The present application relates to a large-particle, low-DCR, non-cured inductor with good fixing effect, and relates to the field of inductors. The inductor is installed on a circuit board. The inductor includes a shell, and the shell includes a circle of convex edges. The lower surface of the convex edge is connected with two circles of sealing rings from the inside to the outside. The convex edge is located between the two sealing rings and has multiple plug-in holes. A material cavity is arranged around the plug-in holes, and the material cavity is filled with shock-absorbing particles; the circuit board is connected with a support rod corresponding to the plug-in holes, and the support rod is provided with a fixing component for fixing the convex edge and the circuit board; the lower surface of the sealing ring is provided with a material hole corresponding to and connected to the material cavity, and the material hole is located between the two circles of sealing rings, and a blocking component for controlling the opening and closing of the material hole is arranged in the cavity. The present application has the effect of improving the stability of the inductor.

Description

Technical Field

[0001] The present application relates to the field of inductors, and in particular to a large-particle, low-DCR, non-cured inductor with good fixing effect. Background Art

[0002] Large-particle, low-DCR, non-solidified inductors are installed on circuit boards. They usually play the main functions of filtering, oscillation, delay, trapping, etc. in the circuit. They also have the functions of screening signals, filtering noise, stabilizing current, and suppressing electromagnetic interference. The connection method between the inductor and the circuit board is usually to weld the pins of the inductor to the circuit board.

[0003] When the circuit board and the inductor are in a condition of frequent vibration, the connection between the inductor and the circuit board only by pin welding may be unstable, causing the welding position of the inductor and the circuit board to loosen, and the inductor cannot work normally, resulting in poor stability of the inductor. Summary of the invention

[0004] In order to improve the stability of the inductor, the present application provides a large-particle, low-DCR, non-cured inductor with good fixing effect.

[0005] The present application provides a large particle low DCR non-solidified inductor with good fixing effect, which adopts the following technical solution:

[0006] A large-particle, low-DCR, non-cured inductor with good fixing effect, mounted on a circuit board, the inductor comprises a shell, the shell comprises a circle of convex edges, the lower surface of the convex edges is connected with two circles of sealing rings from the inside to the outside, the convex edges are provided with a plurality of plug-in holes at a position between the two sealing rings, a material cavity is provided around the plug-in holes, and shock-absorbing particles are contained in the material cavity;

[0007] The circuit board is connected with support rods corresponding to the plug holes one by one, and the support rods are provided with fixing components for fixing the convex edge and the circuit board;

[0008] The lower surface of the sealing ring is provided with material holes corresponding to and connected with the material cavity one by one, the material holes are located between two circles of sealing rings, and a blocking component for controlling the opening and closing of the material holes is provided in the cavity.

[0009] By adopting the above technical solution, when the inductor needs to be fixed, the inductor is put in place, and the sealing component seals the material hole. The shock-absorbing particles are placed in the material cavity, and the plugging hole is aligned with the corresponding support rod. The shell is moved downward. After the shell is moved into place, the sealing ring is pressed against the circuit board, and the fixing component fixes the convex plate and the circuit board, so that the inductor and the circuit board are fixed. In the process of the fixing component fixing the convex plate and the circuit board, the sealing component opens the material hole, and the shock-absorbing particles fall between the two sealing rings, the convex plate and the circuit board. When the circuit board and the inductor vibrate, the shock-absorbing particles absorb the vibration, thereby reducing the vibration amplitude of the circuit board and the inductor, and improving the stability of the inductor.

[0010] Optionally, the fixing assembly includes a fixing block fixedly connected to the top of the support rod, the fixing block is slidably connected to connecting rods on two opposite sides, the connecting rod is connected to a connecting block at one end away from the fixing block, the lower surface of the connecting block is connected to a sealing plate, the upper surface of one side of the sealing plate is in contact with the lower surface of the fixing block, a connecting spring is provided between the fixing block and the connecting block, and the two ends of the connecting spring are respectively fixed to the fixing block and the connecting block.

[0011] By adopting the above technical solution, after the plug-in hole is aligned with the corresponding support rod, the two connecting blocks are moved in the direction of approaching each other to compress the connecting spring until the sealing plate and the connecting block can be inserted into the plug-in hole, and then the shell is moved downward to insert the connecting block and the sealing plate into the plug-in hole. The hole wall of the plug-in hole limits the connecting block and the sealing plate. When the shell is moved into place, the connecting block and the sealing plate move to above the convex edge. At this time, the connecting spring restores its deformation and pushes the corresponding connecting block and the sealing plate to move, so that the two connecting blocks move away from each other, the sealing plate contacts the upper surface of the convex edge, and the sealing plate and the convex edge cooperate to fix the circuit board and the inductor.

[0012] Optionally, the aperture of the plug-in hole gradually decreases from bottom to top, and when the connecting spring is not subjected to external force, the distance between the side walls of the two connecting blocks that are away from each other is smaller than the bottom aperture of the plug-in hole.

[0013] By adopting the above technical solution, the connecting block and the sealing plate can be better inserted into the plug-in hole, which reduces the occurrence of manual operation by staff to make the connecting block and the sealing plate enter the plug-in hole, thus saving manpower.

[0014] Optionally, the blocking assembly includes a blocking plate slidably connected to the cavity wall at the bottom of the material cavity, a limit spring is connected to the blocking plate, one end of the limit spring away from the blocking plate is fixed to the cavity wall corresponding to the material cavity, and the limit spring enables the blocking plate to block the material hole;

[0015] A driving rod is connected to the sealing plate, and a strip hole is provided on the upper surface of the convex edge for the driving rod to pass through and slide. The driving rod is inserted into the strip hole, and the driving rod is located on one side of the plug-in hole. A support plate is connected to the top of the driving rod near the plug-in hole. The driving rod is also fixedly connected to a top plate that fits with the upper surface of the material chamber and seals the strip hole.

[0016] By adopting the above technical scheme, when the sealing plate is located in cooperation with the convex edge, the limit spring causes the sealing plate to seal the material hole, the driving rod is located at one end of the strip hole close to the plug-in hole, and the top plate seals the strip hole. When the sealing plate of the connecting block moves outside the convex edge, the connecting spring drives the connecting block and the sealing plate to move, and the connecting block pushes the support plate, the driving rod and the top plate to move. At the same time, the support plate seals the strip hole, and the driving rod drives the sealing plate to move, and at the same time compresses the limit spring. As the sealing plate moves, the material hole gradually opens, and the shock-absorbing particles in the material cavity fall onto the circuit board.

[0017] Optionally, a slider is connected to the lower surface of the blocking plate, and a slide groove adapted to the slider is provided on the bottom cavity wall of the material cavity. The length direction of the slide groove is arranged along the length direction of the strip hole, and the slider is slidably inserted in the slide groove.

[0018] By adopting the above technical solution, the slider cooperates with the slide groove to enable the blocking plate to slide and cooperate with the convex edge.

[0019] Optionally, grooves corresponding to the sealing rings are formed on the circuit board.

[0020] By adopting the above technical solution, when the housing is moved into place, the sealing ring is inserted into the groove, and the sealing ring cooperates with the groove to improve the sealing performance of the space between the two sealing rings, the convex edge and the circuit board.

[0021] Optionally, an extrusion piece for extruding the sealing ring is provided in the groove.

[0022] By adopting the above technical solution, in the process of the sealing ring moving toward the groove, the extrusion piece works to deform the sealing ring, and the two arc-shaped side walls of the sealing ring are tightly pressed against the groove walls corresponding to the groove, thereby improving the space airtightness between the two sealing rings, the convex edge and the circuit board, and reducing the occurrence of leakage of shock-absorbing particles.

[0023] Optionally, the extrusion member includes an extrusion spring connected to the bottom wall of the groove, an extrusion plate is slidably inserted in the groove, and an end of the extrusion spring is fixed to the corresponding extrusion plate.

[0024] By adopting the above technical solution, when the sealing ring enters the groove, the sealing ring pushes the extrusion plate to move downward, and at the same time the extrusion plate compresses the extrusion spring. The sealing ring is deformed under the action of the elastic force of the extrusion spring, so that the arc surface of the sealing ring is pressed against the groove wall corresponding to the groove. When the sealing plate moves into place, the extrusion spring presses the convex edge against the sealing plate, thereby making the cooperation effect between the convex edge and the sealing plate better.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The stability of the inductor is improved by providing a circuit board, a housing, a support rod, a plug hole, a fixing component and a blocking component;

[0027] 2. The inductor and the circuit board can be fixed by setting a fixing block, a connecting rod, a connecting block, a sealing plate and a connecting spring;

[0028] 3. The opening and closing of the material hole can be controlled by setting a blocking plate, a driving rod, a limit spring and a top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the inductor according to an embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of the overall structure of the inductor according to the embodiment of the present application.

[0031] Figure 3 It is a cross-sectional view of the fixing component structure of an embodiment of the present application.

[0032] Figure 4 It is a cross-sectional view of the structure of the blocking component according to an embodiment of the present application.

[0033] Figure 5 It is a cross-sectional view of the extrusion structure of an embodiment of the present application.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. Circuit board; 11. Groove; 2. Shell; 21. Protrusion; 211. Plug hole; 222. Material cavity; 223. Material hole; 224. Slide groove; 225. Strip hole; 3. Support rod; 4. Fixing assembly; 41. Fixing block; 42. Connecting rod; 43. Connecting block; 44. Sealing plate; 45. Connecting spring; 5. Sealing ring; 6. Sealing assembly; 61. Sealing plate; 611. Slider; 62. Driving rod; 621. Support plate; 63. Limiting spring; 64. Top plate; 7. Extrusion piece; 71. Extrusion plate; 72. Extrusion spring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application embodiment discloses a large particle low DCR non-cured inductor with good fixing effect. Figure 1 and Figure 2 , mounted on a circuit board 1, the inductor includes a shell 2, the shell 2 has a circle of flanges 21, and also includes pins protruding from the shell 2; a plurality of plug holes 211 are opened on the flange 21, and the plug holes 211 penetrate the flange 21. The plurality of plug holes 211 are distributed along the circumference of the shell 2.

[0037] Reference Figure 2 and Figure 3 The circuit board 1 is fixedly connected with a support rod 3 corresponding to the plug holes 211, and a fixing assembly 4 is provided on the support rod 3 to fix the flange 21 and the circuit board 1. The fixing assembly 4 includes a fixing block 41 fixedly connected to the top of the support rod 3, and connecting rods 42 are slidably inserted on two opposite side walls of the fixing block 41. The connecting rod 42 is perpendicular to the support rod 3, and one end of the connecting rod 42 away from the fixing block 41 is fixedly connected to the connecting block 43; a connecting spring 45 is sleeved on the connecting rod 42, and the connecting spring 45 is located between the fixing block 41 and the connecting block 43, one end of the connecting spring 45 is fixed to the connecting block 43, and the other end of the connecting spring 45 is fixed to the fixing block 41.

[0038] In order to make the connection block 43 better enter the plug hole 211, the aperture of the plug hole 211 is gradually reduced from bottom to top, and when the connection spring 45 is not subjected to external force, the connection spring 45 makes the two connection blocks 43 move away from each other, and the distance between the side walls of the two connection blocks 43 moving away from each other is smaller than the maximum aperture of the plug hole 211. The lower surface of the connection block 43 is also fixedly connected with a sealing plate 44, the two sealing plates 44 are close to each other, and the lower surface of the sealing plate 44 contacts the lower surface of the fixed block 41.

[0039] After the inductor is in place on the circuit board 1, the support rod 3 is aligned with the corresponding plug hole 211, and then the housing 2 is pressed downward to insert the connection block 43 into the plug hole 211 and contact the hole wall of the plug hole 211; as the housing 2 continues to move downward, the hole wall of the plug hole 211 pushes the connection block 43, the sealing plate 44 and the connecting rod 42 to move, so that the two connection blocks 43 are close to each other, and the connection spring 45 is also compressed. When the flange 21 moves into place, the connection block 43 and the sealing plate 44 move upward to separate from the hole wall of the plug hole 211, and the connection spring 45 recovers its deformation and pushes the connection block 43, the sealing plate 44 and the connecting rod 42 to move, so that the two connection blocks 43 move away from each other, and at the same time, the connection block 43 drives the corresponding sealing plate 44 to move, so that the sealing plate 44 contacts the upper surface of the flange 21, and at this time, the sealing plate 44 cooperates with the flange 21 to fix the flange 21 and the circuit board 1.

[0040] Reference Figure 4 and Figure 5 Two circles of rubber sealing rings 5 ​​are fixedly connected to the lower surface of the convex edge 21. The sealing ring 5 is hollow, and all the plug-in holes 211 are located between the two sealing rings 5. The circuit board 1 is provided with grooves 11 corresponding to the sealing rings 5 ​​one by one; the convex edge 21 is provided with material cavities 222 corresponding to the plug-in holes 211 one by one, and the material cavities 222 surround the corresponding plug-in holes 211. The material cavities 222 are filled with shock-absorbing particles. The lower surface of the convex edge 21 is provided with material holes 223 connected to the material cavities 222, and the material cavity 222 is also provided with a blocking component 6 for controlling the opening and closing of the material holes 223.

[0041] The blocking assembly 6 includes a blocking plate 61 arranged in the material cavity 222, and a slider 611 is fixedly connected to the lower surface of the blocking plate 61. In this embodiment, there are two sliders 611, and the material hole 223 is located between the two sliders 611. A slide groove 224 corresponding to the slider 611 is opened on the bottom cavity wall of the material cavity 222. The length direction of the slide groove 224 is consistent with the length direction of the connecting rod 42. The slider 611 is slidably inserted in the slide groove 224. The slider 611 cooperates with the slide groove 224 to make the blocking plate 61 slidably connected to the convex plate, and the lower surface of the blocking plate 61 is in contact with the bottom cavity wall of the material cavity 222; a limiting spring 63 is fixedly connected to the slider 611, and one end of the limiting spring 63 away from the slider 611 is fixed to the cavity wall corresponding to the material cavity 222, and the limiting spring 63 enables the blocking plate 61 to block the material hole 223.

[0042] A driving rod 62 is fixedly connected to the upper surface of the blocking plate 61, and a strip hole 225 corresponding to the driving rod 62 is opened on the upper surface of the convex plate. The length direction of the strip hole 225 is arranged along the length direction of the slide groove 224. The driving rod 62 is inserted into the strip hole 225, and the upper end of the driving rod 62 protrudes from the upper surface of the convex edge 21; when the blocking plate 61 blocks the material hole 223, the driving rod 62 is located on one side of the plug-in hole 211, and the driving rod 62 is located at one end of the strip hole 225 close to the plug-in hole 211.

[0043] A support plate 621 is fixedly connected to the top of the driving rod 62, and the support plate 621 is located on the side of the driving rod 62 close to the plug hole 211. When the limit spring 63 is not subjected to external force, the support plate 621 is located on the side of the plug hole 211; the driving rod 62 is also fixedly connected to a top plate 64 for sealing the strip hole 225, and the top plate 64 is located on the side of the driving rod 62 away from the plug hole 211, and the upper surface of the top plate 64 is in contact with the top cavity wall of the material cavity 222.

[0044] In the process of pressing the shell 2 downward, the sealing ring 5 is inserted into the groove 11, and the sealing ring 5 cooperates with the groove 11 to form a closed cavity between the convex edge 21 and the circuit board 1. When the convex edge 21 moves into place, the connecting block 43 moves to the top of the convex edge 21, and the connecting spring 45 restores its deformation and pushes the connecting block 43 to move away from the fixed block 41. At the same time, the connecting block 43 contacts the driving rod 62 and pushes the support plate 621 and the driving rod 62 to move. The driving rod 62 drives the blocking plate 61 and the slider 611 to move. The movement of the slider 611 compresses the limit spring 63. As the blocking plate 61 moves, the material hole 223 opens, and the shock-absorbing particles in the material cavity 222 leak out to between the convex edge 21 and the circuit board 1; in the process of the driving rod 62 moving, the support plate 621 blocks the strip hole 225 to reduce the occurrence of shock-absorbing particles leaking out of the strip hole 225.

[0045] When the flange 21 moves into place, the sealing plate 44 cooperates with the flange 21 to fix the flange 21 and the circuit board 1, thereby fixing the housing 2 and the circuit board 1. When the circuit board 1 and the inductor vibrate, the shock-absorbing particles absorb the vibration, reducing the vibration amplitude of the circuit board 1 and the inductor, making the connection between the inductor and the circuit board 1 more stable, reducing the situation where the inductor is separated from the circuit board 1 due to vibration, thereby improving the stability of the inductor.

[0046] Reference Figure 5 An extrusion piece 7 for extruding the sealing ring 5 is also provided in the groove 11. The extrusion piece 7 includes an extrusion plate 71 slidably inserted in the groove 11. The extrusion plate 71 is annular. A plurality of extrusion springs 72 are fixedly connected to the lower surface of the extrusion plate 71. The plurality of extrusion springs 72 are distributed along the circumference of the groove 11, and the lower ends of the extrusion springs 72 are fixed to the bottom groove wall of the groove 11. When the extrusion spring 72 is not subjected to external force, the pressure spring causes the extrusion plate 71 to be located at the upper part of the groove 11.

[0047] When the sealing ring 5 moves into the groove 11, the sealing ring 5 first contacts the extrusion plate 71. As the sealing ring 5 continues to move downward, the extrusion plate 71 compresses the extrusion spring 72, and the lower end of the sealing ring 5 is also deformed under the action of the elastic force of the extrusion spring 72, so that the two annular side walls of the sealing ring 5 are in contact with the groove walls corresponding to the groove 11, so that the space airtightness between the two sealing rings 5, the flange 21 and the circuit board 1 is improved, and the leakage of shock-absorbing particles is further reduced; when the sealing plate 44 moves into place, the extrusion spring 72 makes the flange 21 and the sealing plate 44 press tightly, so that the sealing plate 44 and the flange 21 have a better matching effect.

[0048] The implementation principle of the large-particle, low-DCR, non-cured inductor with good fixing effect in the embodiment of the present application is as follows: put the inductor in place, align the plug hole 211 with the corresponding support rod 3, move the inductor downward, insert the sealing ring 5 into the groove 11, squeeze the spring 72 to deform the sealing ring 5, insert the sealing plate 44 and the connecting block 43 into the plug hole 211, and the two connecting blocks 43 move towards each other when the hole wall of the plug hole 211 is pressed, and the connecting spring 45 is also compressed; when the convex edge 21 moves into place, the sealing plate 44 moves to the top of the convex edge 21, the connecting spring 45 restores the deformation and pushes the connecting block 43 and the sealing plate 44 to move, and at the same time, the connecting block 43 pushes the support plate 621, the driving rod 62 and the blocking plate 61 to move, so that the material hole 223 is opened, and the damping particles enter between the convex edge 21, the circuit board 1 and the two sealing rings 5, and the shell 2 is released, and the spring 72 is squeezed to make the convex edge 21 abut against the sealing plate 44.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large particle, low DCR, non-cured inductor with good fixing effect, mounted on a circuit board (1), the inductor comprising a housing (2), the housing (2) comprising a ring of convex edges (21), characterized in that: The lower surface of the convex edge (21) is connected to two circles of sealing rings (5) from the inside to the outside, and the convex edge (21) is provided with a plurality of plug holes (211) at a position between the two sealing rings (5), and a material cavity (222) is provided around the plug holes (211), and the material cavity (222) is filled with shock-absorbing particles; The circuit board (1) is connected to support rods (3) corresponding one to one with the plug holes (211), and the support rods (3) are provided with fixing components (4) for fixing the convex edge (21) and the circuit board (1); The lower surface of the convex edge (21) is provided with a material hole (223) corresponding to and communicating with the material cavity (222). The material hole (223) is located between two circles of sealing rings (5). A blocking component (6) for controlling the opening and closing of the material hole (223) is provided in the material cavity (222).

2. According to claim 1, a large-particle, low-DCR, non-cured inductor with good fixing effect, characterized in that: The fixing assembly (4) comprises a fixing block (41) fixedly connected to the top of the support rod (3); two opposite sides of the fixing block (41) are slidably connected to connecting rods (42); one end of the connecting rod (42) away from the fixing block (41) is connected to a connecting block (43); a sealing plate (44) is connected to the lower surface of the connecting block (43); an upper surface of one side of the sealing plate (44) contacts the lower surface of the fixing block (41); a connecting spring (45) is provided between the fixing block (41) and the connecting block (43); two ends of the connecting spring (45) are respectively fixed to the fixing block (41) and the connecting block (43).

3. The large-particle, low-DCR, non-cured inductor with good fixing effect according to claim 2, characterized in that: The diameter of the plug hole (211) gradually decreases from bottom to top, and when the connection spring (45) is not subjected to external force, the distance between the side walls of the two connection blocks (43) that are away from each other is smaller than the bottom diameter of the plug hole (211).

4. The large-particle, low-DCR, non-cured inductor with good fixing effect according to claim 2, characterized in that: The blocking assembly (6) comprises a blocking plate (61) slidably connected to the bottom wall of the material cavity (222); a limit spring (63) is connected to the blocking plate (61); one end of the limit spring (63) away from the blocking plate (61) is fixed to the cavity wall corresponding to the material cavity (222); the limit spring (63) enables the blocking plate (61) to block the material hole (223); A driving rod (62) is connected to the blocking plate (61); a strip hole (225) is provided on the upper surface of the convex edge (21) for the driving rod (62) to pass through and slide; the driving rod (62) is inserted into the strip hole (225), and the driving rod (62) is located on one side of the plug hole (211); a support plate (621) is connected to the top of the driving rod (62) near the plug hole (211); and a top plate (64) is fixedly connected to the driving rod (62) and is in contact with the upper surface of the material chamber (222) and blocks the strip hole (225).

5. The large-particle, low-DCR, non-cured inductor with good fixing effect according to claim 4, characterized in that: A slider (611) is connected to the lower surface of the blocking plate (61), and a slide groove (224) adapted to the slider (611) is provided on the bottom cavity wall of the material cavity (222). The length direction of the slide groove (224) is arranged along the length direction of the strip hole (225), and the slider (611) is slidably inserted in the slide groove (224).

6. A large particle low DCR non-cured inductor with good fixing effect according to any one of claims 1 to 5, characterized in that: The circuit board (1) is provided with grooves (11) corresponding one to one with the sealing rings (5).

7. The large-particle, low-DCR, non-cured inductor with good fixing effect according to claim 6, characterized in that: An extrusion piece (7) for extruding the sealing ring (5) is provided in the groove (11).

8. The large-particle, low-DCR, non-cured inductor with good fixing effect according to claim 7, characterized in that: The extrusion member (7) comprises an extrusion spring (72) connected to the bottom wall of the groove (11), an extrusion plate (71) is slidably inserted in the groove (11), and an end of the extrusion spring (72) is fixed to the corresponding extrusion plate (71).

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