Bass horn

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a woofer, which comprises a sound production part and a sound amplification part, a washer is arranged at the bottom end of the sound production part, a magnet is fixedly arranged on the front side surface of the washer, the washer is used for guiding a magnetic field generated by the magnet into a specific position, a T iron is fixedly arranged on the front side surface of the magnet, and a voice coil is arranged above the washer. The voice coil is sleeved on an iron core in the center of the T iron; the loudspeaker comprises a voice coil, a sound amplifying part is arranged on the voice coil, a support is arranged at the tail end of the sound amplifying part, a cone is arranged on the inner ring of the support, the loudspeaker further comprises an elastic limiting supporting part arranged on the periphery of the voice coil, the elastic limiting supporting part is composed of dampers, and the dampers limit the voice coil to vibrate within a fixed range. The voice coil is limited in a fixed range to vibrate, energy loss is reduced, the conversion rate of electric energy and sound energy is improved, and the outer edge of the damper is upwarped to protect the wire and prevent the wire from being in contact with the iron support to cause short circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a bass loudspeaker. Background Art

[0002] A speaker is a modern electro-acoustic component that converts electrical signals into sound. It is also called a loudspeaker. A woofer is a common type of speaker.

[0003] The existing woofer has a voice coil with a large vibration range and amplitude when in operation, which will lead to energy loss and thus reduce the conversion rate of electrical energy to sound energy. In view of this, we propose a woofer. Utility Model Content

[0004] The main purpose of the present invention is to provide a bass speaker to solve the problem in the related art that the bass speaker may be separated from the main body due to vibration, resulting in poor sound quality or even damage to the speaker.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a woofer is provided, including a sound-emitting part and a sound-reinforcing part, a washer is provided at the bottom end of the sound-emitting part, a magnet is fixedly provided on the front side of the washer, and the washer is used to direct the magnetic field generated by the magnet into a specific position, a T-iron is fixedly provided on the front side of the magnet, and a voice coil is provided above the washer, and the voice coil is sleeved on the iron core in the center of the T-iron; a bracket is provided at the end of the sound-reinforcing part, and a paper cone is provided on the inner ring of the bracket; and it also includes an elastic limiting support part provided on the periphery of the voice coil, the elastic limiting support part being composed of a spring wave, and the spring wave limits the voice coil to vibrate within a fixed range.

[0006] Furthermore, grooves are provided on both sides of the surface of the bracket to limit relative sliding with the main body, and the bracket is provided with a plurality of screw holes.

[0007] Furthermore, the paper basin is fixedly connected to the bracket.

[0008] Furthermore, a dust cap is provided at the center of the paper cone to separate the interior of the speaker from the external environment, and the dust cap is fixedly connected to the paper cone.

[0009] Furthermore, the front end surface of the voice coil is fixedly connected to the paper cone.

[0010] Furthermore, a wire is provided behind the paper cone to transmit the electrical signal to the voice coil, and one end of the wire is fixedly connected to the voice coil.

[0011] Furthermore, a terminal board is provided at the other end of the wire to transmit external electrical signals into the wire.

[0012] Furthermore, the terminal board is fixedly connected to the wire.

[0013] Furthermore, the damper sleeve is arranged outside the middle of the voice coil to limit the displacement of the voice coil.

[0014] Furthermore, the elastic wave is fixedly connected to the T-iron.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a spring to limit the displacement of the voice coil, reduces the lateral displacement of the voice coil, and limits the vibration of the voice coil to a fixed range, thereby reducing energy loss and improving the conversion rate of electrical energy to sound energy. In addition, the outer edge of the spring is raised to protect the wires and prevent the wires from contacting the iron bracket and causing a short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the sound-producing part of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sound reinforcement part of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the utility model.

[0020] Illustration:

[0021] 1. Sounding part; 101. Washer; 102. Magnet; 103. T-iron; 104. Damper; 105. Voice coil;

[0022] 2. Sound reinforcement unit; 201. Paper cone; 202. Dust cap; 203. Bracket; 204. Wire; 205. Terminal board. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figures 1 to 4 , this embodiment provides a bass speaker, including a sound-generating part 1 and a sound-reinforcing part 2, the sound-generating part 1 converts an external electrical signal into an acoustic signal, and the sound-reinforcing part 2 amplifies and propagates the acoustic signal;

[0025] A washer 101 is provided at the bottom of the sound-generating part 1, and a magnet 102 is fixedly provided on the front side of the washer 101. The washer 101 is used to direct the magnetic field generated by the magnet 102 to a specific position. A T-iron 103 is fixedly provided on the front side of the magnet 102. A voice coil 105 is provided above the washer 101, and the voice coil 105 is sleeved on the iron core in the center of the T-iron 103.

[0026] A bracket 203 is provided at the end of the sound amplification part 2, and a paper cone 201 is provided on the inner circle of the bracket 203. The characteristic is that it also includes an elastic limiting support part provided on the periphery of the voice coil 105, and the elastic limiting support part is composed of a spring 104. The spring 104 limits the vibration of the voice coil 105 to a fixed range.

[0027] The bracket 203 is used to fix the speaker on the corresponding main body. Grooves are provided on both sides of the surface of the bracket 203 to limit the relative sliding with the main body. The grooves are uneven and complementary to the corresponding main body, which increases the contact surface between the main body and also limits the displacement of the bracket 203, thereby fixing the speaker and preventing it from being displaced significantly and separated from the main body during operation. The bracket 203 is provided with a number of screw holes. The screws pass through the screw holes to fix the speaker to the main body through the bracket 203, thereby improving the firmness of the speaker and the main body.

[0028] The paper cone 201 is fixedly connected to the bracket 203. The paper cone 201 vibrates back and forth, causing the air around it to change in density, thereby converting the electrical signal into an acoustic signal and transmitting it out.

[0029] A dust cap 202 is provided in the center of the paper cone 201 to isolate the interior of the speaker from the external environment, preventing foreign matter from entering the speaker and corroding the voice coil 105 and the damper 104, thereby reducing the sound quality of the speaker. The dust cap 202 is fixedly connected to the paper cone 201.

[0030] The front end surface of the voice coil 105 is fixedly connected to the paper cone 201. When the voice coil 105 vibrates, it drives the paper cone 201 to vibrate together, converting the electrical signal into an acoustic signal.

[0031] A wire 204 is provided behind the paper cone 201 to transmit the electrical signal to the voice coil 105 . Under the action of the electrical signal, the voice coil 105 generates an electromagnetic field, and the electromagnetic field changes with the change of the electrical signal. One end of the wire 204 is fixedly connected to the voice coil 105 .

[0032] It should be noted that the outer edge of the damper 104 is tilted upwards to protect the wire 204 and prevent the wire 204 from contacting the iron bracket 203 and causing a short circuit.

[0033] A terminal board 205 is provided at the other end of the wire 204 to transmit external electrical signals to the wire 204 and facilitate the connection of an external power line to the wire 204 . The terminal board 205 is fixedly connected to the wire 204 .

[0034] The washer 101 is used to guide the magnetic field generated by the magnet 102 to a specific position, strengthen the magnetic field of the magnet 102, and improve the sound energy conversion rate.

[0035] The voice coil 105 is mounted on the core at the center of the T-iron 103. When current is applied, the voice coil 105 generates a magnetic field. The T-iron 103 concentrates the magnetic field generated by the voice coil 105 in the gap between the core of the T-iron 103 and the elastic wave 104. The magnetic fields of the voice coil 105 and the magnet 102 overlap and interact with each other, increasing the amplitude of the voice coil 105.

[0036] A damper 104 is provided on the outer side of the middle portion of the voice coil 105 to limit the displacement of the voice coil 105 , reduce the lateral displacement of the voice coil 105 , confine the vibration of the voice coil 105 to a fixed range, reduce energy loss, and improve the conversion rate of electrical energy to acoustic energy. The damper 104 is fixedly connected to the T-iron 103 .

[0037] The speaker is placed at the corresponding position of the main body that needs to be amplified, the bracket 203 is close to the main body, and the bracket 203 is fixed to the main body with screws. The grooves on the surface of the bracket 203 are uneven, which complement the corresponding main body, increasing the contact surface between the main body and the bracket 203 while limiting the displacement of the bracket 203, thereby fixing the speaker and preventing it from being displaced significantly during operation and separating from the main body, affecting the sound quality of the speaker or even damaging it; the power cord of the main body is connected to the terminal board 205, and the electrical signal is transmitted from the terminal board 205 to the voice coil 105 through the wire 204. After the electrical signal enters the voice coil 105, a magnetic field is generated due to electromagnetic induction. The T-iron 103 concentrates the magnetic field generated by the voice coil 105 between the iron core of the T-iron 103 and the elastic wave 104. The washer 101 concentrates the magnetic field generated by the magnet 102 in the gap between the T-iron 103 core and the elastic wave 104, causing the magnetic fields of the voice coil 105 and the magnet 102 to overlap and interact with each other. Since the electrical signal is constantly changing, the magnetic field generated by the voice coil 105 is also constantly changing, and the interaction force between the voice coil 105 and the magnet 102 is also constantly changing. The magnet 102 repels or attracts the voice coil 105 to move back and forth, and the elastic wave 104 restricts the voice coil 105 to vibrate within a fixed range, reducing energy loss and improving the conversion rate of sound energy. The voice coil 105 drives the paper cone 201 to vibrate, and the vibration of the paper cone 201 causes the air around it to change in density, thereby converting the electrical signal into an acoustic signal and transmitting it out.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A woofer, characterized in that: The woofer comprises a sound-generating part (1) and a sound-amplifying part (2), a washer (101) is provided at the bottom end of the sound-generating part (1), a magnet (102) is fixedly provided on the front side of the washer (101), a T-iron (103) is fixedly provided on the front side of the magnet (102), a voice coil (105) is provided above the washer (101), and the voice coil (105) is sleeved on the iron core at the center of the T-iron (103); a bracket (203) is provided at the end of the sound-amplifying part (2), and a paper cone (201) is provided on the inner ring of the bracket (203); It also includes an elastic limiting support portion arranged on the periphery of the voice coil (105), the elastic limiting support portion being composed of a spring wave (104), and the spring wave (104) limiting the vibration of the voice coil (105) within a fixed range.

2. A woofer according to claim 1, characterized in that: Grooves are provided on both sides of the surface of the bracket (203), and the bracket (203) is provided with a plurality of screw holes.

3. The woofer according to claim 1, characterized in that: The paper basin (201) is fixedly connected to the bracket (203).

4. The woofer according to claim 1, characterized in that: A dustproof cap (202) is provided at the center of the paper cone (201) to separate the interior of the speaker from the external environment, and the dustproof cap (202) is fixedly connected to the paper cone (201).

5. The woofer according to claim 1, characterized in that: The front end surface of the voice coil (105) is fixedly connected to the paper cone (201).

6. The woofer according to claim 1, characterized in that: A conductor (204) is provided at the rear of the paper cone (201) to transmit the electrical signal to the voice coil (105), and one end of the conductor (204) is fixedly connected to the voice coil (105).

7. The woofer according to claim 6, characterized in that: The other end of the wire (204) is provided with a terminal board (205) for transmitting external electrical signals into the wire (204).

8. The woofer according to claim 7, characterized in that: The terminal board (205) is fixedly connected to the wire (204).

9. The woofer according to claim 1, characterized in that: The elastic wave (104) is sleeved on the outside of the middle part of the voice coil (105) and is used to limit the displacement of the voice coil (105).

10. The woofer according to claim 1, characterized in that: The elastic wave (104) is fixedly connected to the T iron (103).

Images