Anti-vibration automobile sound choking coil

Abstract

The utility model discloses an anti-vibration automobile sound choking coil, which comprises a filter inductor and a base, an elastic piece is arranged at the bottom of the filter inductor, the elastic piece is connected with the base, two conductive components are arranged on the base, each conductive component comprises an elastic guide sheet and a guide pillar, the elastic guide sheets and the guide pillars are connected with the base, and the elastic guide sheets and the guide pillars are connected with the base. The guide column is in contact with the elastic guide pieces, and the positive electrode and the negative electrode of the filter inductor abut against the two elastic guide pieces respectively. According to the anti-vibration automobile sound choking coil, the base and the filter inductor are separated, the weight of the bottom plate welded to the circuit board is reduced, and inertia force generated when the bottom plate vibrates is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, in particular to an anti-vibration choke coil for automotive audio. Background Art

[0002] A choke coil is a common-mode interference suppression device with a ferrite core. The existing structure of the choke coil is that two coils with the same size and the same number of turns are symmetrically wound on the same ferrite toroidal core respectively.

[0003] In an audio system, the choke coil inductance is mainly used to isolate sound signals, separate high-frequency and low-frequency signals, so as to make the sound clearer and more natural when playing music; increasing the inductance can make the performance of low frequencies better, the sound wider and fuller, while reducing the inductance can transmit high-frequency signals more accurately and improve the detailed performance of musical instruments.

[0004] However, the above-mentioned choke coil is welded to the circuit board of the audio by spot welding. Since the sound generated when the audio is running will cause the audio to vibrate, the vibration will cause the solder joints between the choke coil and the circuit board to become desoldered, resulting in the choke coil for optimizing the audio quality to stop running and the audio quality to deteriorate. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an anti-vibration choke coil for automotive audio, which separates the base from the filter inductor, reduces the weight of the bottom plate welded to the circuit board, and reduces the inertial force generated when the bottom plate vibrates.

[0006] The technical solution adopted by the anti-vibration choke coil for automotive audio disclosed by the utility model is as follows:

[0007] It includes a filter inductor and a base. An elastic member is provided at the bottom of the filter inductor. The elastic member is connected to the base. Two conductive components are provided on the base. The conductive components include elastic guide pieces and guide posts. The elastic guide pieces and the guide posts are both connected to the base. The guide posts are in contact with the elastic guide pieces. The positive and negative poles of the filter inductor respectively abut against the two elastic guide pieces.

[0008] As a preferred solution, two installation grooves are opened on the base. The ends of the installation grooves penetrate out of the top of the base. The elastic guide pieces are slidably inserted into the installation grooves and fixed. The tops of the elastic guide pieces extend out of the top of the base.

[0009] As a preferred solution, the elastic guide piece is of a rectangular frame structure.

[0010] As a preferred solution, two through grooves are opened on the base. The through grooves are communicated with the installation grooves. The guide posts are slidably inserted into the through grooves and fixed. The bottoms of the guide posts extend out of the bottom of the base.

[0011] As a preferred solution, the filtering inductor includes a magnetic core and a housing. A winding is wound around the outside of the magnetic core. The winding is fixedly connected to the housing. Both ends of the winding penetrate through the housing. The positive and negative poles of the filtering inductor are respectively located at both ends of the winding. Both ends of the winding respectively abut against two elastic guide sheets. The elastic member is fixedly connected to the housing.

[0012] The beneficial effects of an anti-vibration automotive audio choke coil disclosed by the present utility model are as follows:

[0013] The base is placed on the circuit board. Two guide posts are respectively spot-welded to the positive and negative poles on the circuit board. The base is separated from the filtering inductor through the elastic member, reducing the weight of the base plate, thereby reducing the inertial force generated when the base plate vibrates; the elastic member can weaken the vibration intensity transmitted from the base to the filtering inductor, thereby reducing the inertial force generated when the filtering inductor vibrates. The elastic member can also weaken the inertial force brought by the filtering inductor to the base, further reducing the tensile force received by the solder joints of this choke coil. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of an anti-vibration automotive audio choke coil of the present utility model.

[0015] Figure 2 is a partial cross-sectional view of the filtering inductor of an anti-vibration automotive audio choke coil of the present utility model.

[0016] Figure 3 is a schematic structural diagram of the base of an anti-vibration automotive audio choke coil of the present utility model.

[0017] Figure 4 is a schematic installation diagram of the conductive component of an anti-vibration automotive audio choke coil of the present utility model. Detailed Embodiment

[0018] The following further elaborates and explains the present utility model in conjunction with specific embodiments and the drawings of the specification:

[0019] Please refer to Figure 1 and Figure 2 。

[0020] An anti-vibration automotive audio choke coil disclosed by the present utility model includes a filtering inductor 1 and a base 2.

[0021] The filtering inductor 1 includes a magnetic core 11 and a housing 12; in this embodiment, the magnetic core 11 is preferably a hollow circular ring. A winding 111 is wound around the outside of the magnetic core 11. In this embodiment, the winding 111 is preferably made of copper wire. Each winding of the winding 111 passes through the center of the magnetic core 11;

[0022] Further, the top of the housing 12 is filled with glue, and the winding 111, the magnetic core 11 and the bottom are fixedly connected to the top of the housing 12 through the glue. Both ends of the winding 111 penetrate through the housing 12 and extend to the bottom of the housing 12. The positive and negative poles of the filter inductor 1 are respectively located at both ends of the winding 111. An elastic member 13 is provided at the bottom of the filter inductor 1. In this embodiment, the elastic member 13 is preferably a spring, and the top of the elastic member 13 is fixedly connected to the bottom of the housing 12.

[0023] Please refer to Figures 1-4 。

[0024] The bottom of the elastic member 13 is fixedly connected to the top of the base 2. The connection position between the elastic member 13 and the base 2 is located at the center of the base 2, so that the inertial force exerted by the elastic member 13 on the base 2 can be more evenly dispersed on the base 2;

[0025] Further, two conductive components 21 are provided on the base 2. The conductive component 21 includes an elastic conductive sheet 211 and a guide post 212. The elastic conductive sheet 211 is a rectangular frame structure. When the top of the elastic conductive sheet 211 is pressed, the elastic conductive sheet 211 can generate elastic deformation. When the downward pressure on the elastic conductive sheet 211 disappears, both ends of the elastic conductive sheet 211 pull the top of the elastic conductive sheet 211 to rebound;

[0026] Further, both the elastic conductive sheet 211 and the guide post 212 are connected to the base 2. Installation grooves 22 are opened on both sides of the base 2, and both ends of the installation groove 22 penetrate out of the top of the base 2. Through grooves 23 are opened on both sides of the base 2, the top of the through groove 23 is communicated with the bottom of the installation groove 22, and the bottom of the through groove 23 penetrates out of the bottom of the base 2;

[0027] Two elastic conductive sheets 211 are respectively inserted and fixed into the two installation grooves 22 by sliding from both sides of the base 2, and the top of the elastic conductive sheet 211 extends out of the top of the base 2 from both ends of the installation groove 22. Two guide posts 212 are respectively inserted and fixed into the two through grooves 23 by sliding from both sides of the base 2, and the bottom of the guide post 212 extends out of the bottom of the base 2 from the bottom of the through groove 23. The guide post 212 is in contact with the elastic conductive sheet 211, so that the current of the elastic conductive sheet 211 is conducted to the guide post 212, and both ends of the winding 111 respectively touch the top of the two elastic conductive sheets 211;

[0028] The bottom of the base 2 is placed on the circuit board, and the two guide posts 212 are respectively spot-welded to the positive and negative poles of the circuit board.

[0029] When the sound emitted by the audio causes the circuit board inside the audio to vibrate, the circuit board transfers the vibration to the base 2. Due to the low weight of the base 2, the inertial force generated by the base 2 during vibration is small, and the tensile force applied to the solder joints connecting the base 2 and the circuit board is small; when the vibration of the base 2 is transferred to the housing 12, the vibration intensity is weakened by the elastic member 13, making the vibration of the filter inductor 1 smaller, thereby reducing the inertial force generated by the filter inductor 1 during vibration. The elastic member 13 can also buffer the inertial force brought by the filter inductor 1 to the base 2, further reducing the inertial force generated by the choke coil during vibration and reducing the tensile force on the solder joints of the choke coil.

[0030] When the filter inductor vibrates, the two ends of the winding will respectively lift and press two elastic guide pieces. By using the elasticity of the elastic guide pieces themselves, the two elastic guide pieces can be constantly connected to the two ends of the winding.

[0031] The present utility model provides an anti-vibration automotive audio choke coil. The base is placed on the circuit board, and two guide posts are respectively spot-welded to the positive and negative poles on the circuit board. The base is separated from the filter inductor by an elastic member, reducing the weight of the base plate, thereby reducing the inertial force generated when the base plate vibrates; the elastic member can weaken the vibration intensity transferred from the base to the filter inductor, thereby reducing the inertial force generated by the filter inductor during vibration. The elastic member can also weaken the inertial force brought by the filter inductor to the base, further reducing the tensile force on the solder joints of this choke coil.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. An anti-vibration choke coil for automotive audio, characterized in that, It includes a filtering inductor and a base; An elastic member is provided at the bottom of the filtering inductor; The elastic member is connected to the base. Two conductive components are provided on the base. The conductive components include elastic guide pieces and guide posts. The elastic guide pieces and the guide posts are both connected to the base. The guide posts are in contact with the elastic guide pieces. The positive and negative electrodes of the filtering inductor respectively abut against the two elastic guide pieces.

2. The anti-vibration automotive audio choke coil according to claim 1, characterized in that, Two mounting grooves are formed on the base. The ends of the mounting grooves penetrate out from the top of the base. The elastic guide pieces are slidably inserted into the mounting grooves and fixed. The tops of the elastic guide pieces extend out of the top of the base.

3. The anti-vibration automotive audio choke coil according to claim 2, characterized in that, The elastic guide piece is of a rectangular frame structure.

4. The anti-vibration automotive audio choke coil according to claim 3, characterized in that, Two through grooves are formed on the base. The through grooves communicate with the mounting grooves. The guide posts are slidably inserted into the through grooves and fixed. The bottoms of the guide posts extend out of the bottom of the base.

5. The anti-vibration choke coil for automotive audio according to claim 4, characterized in that, The filtering inductor includes a magnetic core and a housing. A winding is wound around the outside of the magnetic core. The winding is fixedly connected to the housing. The two ends of the winding both penetrate through the housing. The positive and negative electrodes of the filtering inductor are respectively located at the two ends of the winding. The two ends of the winding respectively abut against the two elastic guide pieces. The elastic member is fixedly connected to the housing.

Images