Vehicle-mounted double-voice-coil loudspeaker

Abstract

The utility model discloses a vehicle-mounted double-voice-coil loudspeaker, which comprises a basin frame with an opening, U iron mounting parts are symmetrically arranged at the top of the basin frame, one end of each voice coil is fixed on a vibrating diaphragm, a conductive part is arranged between each voice coil and U iron, a PC (Personal Computer) interface connected with an external socket is arranged at the top of the basin frame and between magnets, and the PC interface is connected with the external socket. According to the utility model, the PC interface is arranged on the loudspeaker, so that the loudspeaker can be conveniently connected with an external electronic element, the wavy sealing ring is arranged on the outer wall of the voice coil, and the sealing ring can play a role in sharing the weight of the voice coil, so that the voice coil can be further stabilized while the weight of the voice coil is borne, the voice coil is more uniform and stable during vibration, and the service life of the loudspeaker is prolonged. Therefore, the service life of the vibrating diaphragm is longer, the non-deformability of the short side is improved, the non-deformability of the short side and the long side is improved, the condition of sound distortion or abnormal sound generation is improved, and the quality of the loudspeaker is improved.

Description

Technical Field

[0001] The utility model relates to the field of loudspeakers, in particular to a vehicle-mounted double-voice coil loudspeaker. Background Art

[0002] A speaker is actually a conversion device that converts electrical energy into sound. When different electronic energies are transmitted to the coil, the coil generates an energy that interacts with the magnetic field of the main magnet. This interaction causes the paper cone to vibrate. Because the electronic energy changes at any time, the speaker's coil will move forward or backward, so the speaker's paper cone will move with it. This action causes the density of the air to change and produce sound.

[0003] For example, the Chinese utility model patent with application number: CN2015201453719, the utility model invention is named a dual voice coil driven flat panel loudspeaker, which discloses "comprising a basin frame, a diaphragm, a voice coil and at least two magnetic circuit components, the magnetic circuit components comprising a magnet, a washer and a U iron, the diaphragm comprising a body and a suspension edge arranged around the outer edge of the body, the suspension edge is a runway shape formed by connecting two parallel sections in the center and arc sections at both ends, the basin frame comprises a square body, a contoured groove arranged on the body for suspending the diaphragm, at least two positioning holes arranged in the contoured groove for installing the voice coil and a limit block arranged on the side of the positioning hole, and a retaining ring for positioning the diaphragm is provided at the opening of the contoured groove , the two ends of the outer side of the profiling groove are provided with blocks for limiting the retaining ring. The above technical purpose is to achieve the purpose of improving the power and sensitivity of the speaker by connecting two voice coils in parallel on the diaphragm and using the double voice coils to push the diaphragm; the above document records that the magnetic circuit component is set under the voice coil, which is equivalent to the weight of the voice coil itself directly acting on the diaphragm. Because the weight of the voice coil itself is not light and the speaker needs to vibrate when working, the force of the voice coil directly acting on the diaphragm will be very large. Over time, the diaphragm will not be able to withstand the weight of the voice coil itself and will break. In addition, the above technology only records that the two voice coils are connected in parallel, so when connecting with external electronic components, only wiring can be used, which is also very troublesome to install. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle-mounted double voice coil loudspeaker.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme: a vehicle-mounted dual-voice coil speaker, comprising a basin frame with an opening, a U-iron mounting part is symmetrically provided on the top of the basin frame, a U-iron is provided in the U-iron mounting part, a magnet is provided in the U-iron, a diaphragm is provided at the opening, and voice coils are respectively sleeved on the magnets, one end of the voice coil is fixed on the diaphragm, a conductive part is provided between the voice coil and the U-iron, and a PC interface connected to an external socket is provided between the magnets at the top of the basin frame. The utility model is provided with a PC interface for conveniently connecting the speaker to external electronic components. The utility model is provided with a wavy sealing ring on the outer wall of the voice coil, which can share the weight of the voice coil. While bearing the weight of the voice coil, it can further stabilize the voice coil, so that the voice coil is more uniform and stable when vibrating, so that the service life of the diaphragm will be longer, the deformation resistance of the short side will be improved, the deformation resistance of the short side and the long side will be improved, the sound distortion or abnormal sound will be improved, and the quality of the speaker will be improved.

[0006] As a further solution of the utility model, the U-iron mounting portion includes a circular plate symmetrically arranged on the top of the basin frame, and a first through hole is provided on the circular plate that penetrates the circular plate from top to bottom. The U-iron is invertedly installed in the first through hole, and the top of the U-iron protrudes from the circular plate.

[0007] As a further solution of the utility model, the conductive part includes a first annular conductive sheet fixed on the outer wall of the magnet, and a second annular conductive sheet connected to the first annular conductive sheet is fixed on the top of the inner wall of the voice coil.

[0008] As a further solution of the utility model, a second through hole is provided on the top of the basin frame between the U-iron mounting parts, a step is provided in the second through hole, the PC interface is installed on the step, and one end of the PC interface extends into the second through hole.

[0009] As a further solution of the utility model, the PC interface and the two voice coils are connected in series via wires.

[0010] As a further solution of the utility model, a sealing ring coaxial with the voice coil is fixedly provided at the bottom of the first through hole, and the other end of the sealing ring is fixed to the outer wall of the voice coil.

[0011] As a preferred solution of the utility model, the sealing ring is a silicone plate and is wavy in shape.

[0012] As a preferred solution of the utility model, a plurality of first heat dissipation holes are sequentially provided along the circumference on the outer wall of the voice coil.

[0013] As a preferred solution of the utility model, a boss is provided on the outer edge of the bottom of the basin frame, and screw holes are provided at the four corners of the boss.

[0014] As a further solution of the utility model, a plurality of second heat dissipation holes are provided on the outer wall of the basin frame.

[0015] In summary, the utility model has the following beneficial effects compared with the prior art: the utility model is provided with a PC interface for conveniently connecting the speaker to external electronic components, and the utility model is provided with a wavy sealing ring on the outer wall of the voice coil, which can share the weight of the voice coil, and can further stabilize the voice coil while bearing the weight of the voice coil, so that the voice coil vibrates more evenly and stably, thereby extending the service life of the diaphragm, improving the deformation resistance of the short side, improving the deformation resistance of the short side and the long side, improving the situation of sound distortion or abnormal sound, and improving the quality of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional view of the utility model.

[0017] Figure 2 It is a cross-sectional view of the utility model.

[0018] Explanation of the reference numerals: 1. opening; 2. basin frame; 20. U-iron mounting portion; 3. U-iron; 4. magnet; 5. diaphragm; 6. voice coil; 40. conductive portion; 7. PC interface; 21. round plate; 22. first through hole; 41. first annular conductive sheet; 42. second annular conductive sheet; 51. second through hole; 52. step; 61. sealing ring; 71. first heat dissipation hole; 81. boss; 82. screw hole surface; 91. second heat dissipation hole. DETAILED DESCRIPTION

[0019] The following specific implementation content provides a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0020] In addition, space-related words may be used, such as "below", "lower side", "from the inside out", "above", "upper side" and similar words. These relative words are for the convenience of describing the relationship between one element or feature and another element or feature in the drawings. These spatial relative words include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotations or other orientations, and the space-related adjectives used therein may also be interpreted in the same way. Therefore, it cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods: Figure 1 to Figure 2 A vehicle-mounted dual voice coil speaker is shown, comprising a basin frame 2 with an opening 1, a U-iron mounting portion 20 is symmetrically provided on the top of the basin frame 2, a U-iron 3 is provided in the U-iron mounting portion 20, a magnet 4 is provided in the U-iron 3, a diaphragm 5 is provided at the opening 1, voice coils 6 are respectively sleeved on the magnets 4, one end of the voice coil 6 is fixed on the diaphragm 5, a conductive portion 40 is provided between the voice coil 6 and the U-iron 3, and a PC interface 7 connected to an external socket is provided between the magnets 4 at the top of the basin frame 2.

[0022] A further embodiment of the U-iron mounting portion 20 in the utility model: the U-iron mounting portion 20 includes a circular plate 21 symmetrically arranged on the top of the basin frame 2, and a first through hole 22 is provided on the circular plate 21 which penetrates the circular plate 21 from top to bottom. The U-iron 3 is installed upside down in the first through hole 22, and the circular plate 21 protrudes from the top of the U-iron 3. Because the speaker will generate heat after being used for a long time, if the temperature of the speaker is too high, the service life of the voice coil 6 will be reduced. The circular plate 21 protruding from the top of the U-iron 3 will play a role in heat dissipation, thereby increasing the service life of the voice coil 6.

[0023] A further embodiment of the conductive part 40 in the utility model: the conductive part 40 includes a first annular conductive sheet 41 fixed on the outer wall of the magnet 4, and a second annular conductive sheet 42 connected with the first annular conductive sheet 41 is fixed on the top of the inner wall of the voice coil 6. The first annular conductive sheet 41 and the second annular conductive sheet 42 are made of wear-resistant material to prevent the voice coil 6 from directly contacting the magnet 4 and causing continuous friction and wear between the voice coil 6 and the magnet 4 under the action of vibration.

[0024] A further embodiment of the basin frame 2 in the utility model: a second through hole 51 is provided at the top of the basin frame 2 between the U-iron mounting portion 20, a step 52 is provided in the second through hole 51, the PC interface 7 is installed on the step 52, and one end of the PC interface 7 extends into the second through hole 51. The PC interface is for facilitating the connection between the speaker and external electronic components.

[0025] A further embodiment of the PC interface 7 in the present invention: the PC interface 7 is connected in series with the two voice coils 6 through a wire. The disadvantage of parallel connection is that if the circuit is connected in parallel, the sum of the currents at each location is equal to the total current. It can be seen that the current consumption in the parallel circuit is large, because the current of the external power supply entering the speaker is constant, the total external current is 5A, and the two voice coils 6 are connected in parallel. The current that each voice coil 6 can obtain is only 2.5A. However, if the two voice coils 6 are connected in series, the current in the series circuit is equal everywhere, the total external current is 5A, and the current that the voice coils 6 in the series circuit can obtain is 5A. Therefore, when the total external current remains unchanged, the voice coils in the series circuit will have greater power than the voice coils in the parallel circuit.

[0026] A further embodiment of the first through hole 22 in the utility model: a sealing ring 61 coaxial with the voice coil 6 is fixedly provided at the bottom of the first through hole 22, and the other end of the sealing ring 61 is fixed to the outer wall of the voice coil 6. The sealing ring 61 can share part of the weight of the diaphragm 5 and at the same time support the voice coil 6, so that the voice coil 6 is more stable when vibrating, thereby increasing the service life of the diaphragm 5.

[0027] A further embodiment of the sealing ring 61 in the present invention is as follows: the sealing ring 61 is a silicone plate, and the sealing ring 61 is wavy in shape.

[0028] A further embodiment of the voice coil 6 in the present invention: a plurality of first heat dissipation holes 71 are sequentially arranged along the circumference on the outer wall of the voice coil 6 , and the first heat dissipation holes 71 and the second heat dissipation holes 91 have a heat dissipation function, thereby reducing the working temperature of the voice coil 6 and extending the service life of the voice coil 6 .

[0029] A further embodiment of the basin frame 2 in the present invention: a boss 81 is provided on the outer edge of the bottom of the basin frame 2 , and screw holes 82 are provided at the four corners of the boss 81 .

[0030] A further embodiment of the basin frame 2 in the present invention: a plurality of second heat dissipation holes 91 are provided on the outer wall of the basin frame 2 .

[0031] During use: Because the speaker will heat up after being used for a long time, if the temperature of the speaker is too high, the service life of the voice coil 6 will be reduced. The protruding circular plate 21 on the top of the U iron 3 will play a role in heat dissipation and increase the service life of the voice coil 6. The first annular conductive sheet 41 and the second annular conductive sheet 42 are made of wear-resistant material to prevent the voice coil 6 from directly contacting the magnet 4 and causing constant friction and wear between the voice coil 6 and the magnet 4 under the action of vibration. The PC interface is to facilitate the connection of the speaker with external electronic components. The disadvantage of parallel connection: If the circuit is connected in parallel, the sum of the currents at various places is equal to the total current. It can be seen that the current consumption in the parallel circuit is large, because the current entering the speaker from the external power supply is unchanged, and the external current The total is 5A, and the two voice coils 6 are connected in parallel. The current that each voice coil 6 can obtain is only 2.5A. However, if the two voice coils 6 are connected in series, the current in the series circuit is equal everywhere, and the total external current is 5A. The current that the voice coils 6 in the series circuit can obtain is 5A. Therefore, when the total external current remains unchanged, the voice coil in the series circuit will have greater power than the voice coil in the parallel circuit. The sealing ring 61 can share part of the weight of the diaphragm 5 and at the same time support the voice coil 6, making the voice coil 6 more stable when vibrating, thereby increasing the service life of the diaphragm 5. The first heat dissipation hole 71 and the second heat dissipation hole 91 have a heat dissipation effect, reduce the working temperature of the voice coil 6, and extend the service life of the voice coil 6.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vehicle-mounted dual voice coil loudspeaker, comprising a basin frame (2) having an opening (1), characterized in that: A U-iron mounting portion (20) is symmetrically arranged at the top of the basin frame (2), a U-iron (3) is arranged inside the U-iron mounting portion (20), a magnet (4) is arranged inside the U-iron (3), a diaphragm (5) is arranged at the opening (1), voice coils (6) are respectively sleeved on the magnets (4), one end of the voice coil (6) is fixed on the diaphragm (5), a conductive portion (40) is arranged between the voice coil (6) and the U-iron (3), and a PC interface (7) connected to an external socket is arranged between the magnets (4) at the top of the basin frame (2).

2. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: The U-iron mounting portion (20) comprises a circular plate (21) symmetrically arranged on the top of the basin frame (2); a first through hole (22) penetrating the circular plate (21) from top to bottom is provided on the circular plate (21); the U-iron (3) is mounted upside down in the first through hole (22); and the top of the U-iron (3) protrudes out of the circular plate (21).

3. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: The conductive part (40) comprises a first annular conductive sheet (41) fixed on the outer wall of the magnet (4), and a second annular conductive sheet (42) connected to the first annular conductive sheet (41) is fixed on the top of the inner wall of the voice coil (6).

4. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: A second through hole (51) is provided at the top of the basin frame (2) between the U-iron mounting portion (20), a step (52) is provided in the second through hole (51), the PC interface (7) is mounted on the step (52), and one end of the PC interface (7) extends into the second through hole (51).

5. The vehicle-mounted dual voice coil speaker according to claim 4, characterized in that: The PC interface (7) and the two voice coils (6) are connected in series via wires.

6. The vehicle-mounted dual voice coil speaker according to claim 2, characterized in that: A sealing ring (61) coaxial with the voice coil (6) is fixedly provided at the bottom of the first through hole (22), and the other end of the sealing ring (61) is fixed on the outer wall of the voice coil (6).

7. The vehicle-mounted dual voice coil speaker according to claim 6, characterized in that: The sealing ring (61) is a silica gel plate, and the sealing ring (61) is wavy.

8. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: A plurality of first heat dissipation holes (71) are sequentially arranged along the circumference on the outer wall of the voice coil (6).

9. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: A boss (81) is provided on the outer edge of the bottom of the basin frame (2), and screw holes (82) are provided at the four corners of the boss (81).

10. The vehicle-mounted dual voice coil speaker according to claim 1, characterized in that: A plurality of second heat dissipation holes (91) are provided on the outer wall of the basin frame (2).

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