Outdoor waterproof mid-high pitch loudspeaker

Abstract

The utility model relates to an outdoor waterproof alto-tweeter, which comprises a basin stand, a woofer and a tweeter. The bass horn comprises a bass magnetic circuit system and a bass vibration system. The bass magnetic circuit system comprises a T iron, a magnet and a Wass. The bass vibration system comprises a bass voice coil, a bass damper and a bass vibrating diaphragm. The high-pitch loudspeaker comprises a high-pitch support, a high-pitch magnetic circuit, a high-pitch vibrating diaphragm, a high-pitch voice coil, a phase plug, a high-pitch cup and a waterproof sealing piece. The tweeter and the woofer are coaxially arranged, and the tweeter and the woofer are accommodated in the woofer voice coil. The high pitch cup is fixedly arranged on one side of the high pitch support, one side of the waterproof sealing piece is fixedly connected with the low pitch vibrating diaphragm, the other side of the waterproof sealing piece is fixedly connected with the high pitch cup, and therefore the interior of the loudspeaker is sealed, and the loudspeaker has good waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of wide-range loudspeakers, and more particularly to an outdoor waterproof mid-high frequency loudspeaker. Background Technology

[0002] A loudspeaker is an electroacoustic device that converts electrical signals into sound signals. It is widely used in audio systems, automobiles, communication equipment, public address systems, and other fields. Loudspeakers typically include tweeters, midrange speakers, and woofers. To meet various needs, loudspeakers of different frequencies can be assembled together to increase the loudspeaker's range. For example, assembling a midrange speaker with a tweeter creates a mid-high frequency loudspeaker, and assembling a woofer with a midrange speaker creates a mid-bass loudspeaker, thus expanding the loudspeaker's range to meet the needs of different applications.

[0003] In existing technology, mid-high frequency loudspeakers typically place the tweeter cup in front of the voice coil and usually fix it to the voice coil and diaphragm of the loudspeaker. For example, utility model patent CN205566630U discloses a loudspeaker with a tweeter cup, which includes a bracket, a magnetic circuit system, a paper cone, a voice coil, and a tweeter cup mounted on the voice coil. One end of the tweeter cup is fixedly connected to the voice coil of the loudspeaker, while the other end is exposed at the sound outlet of the loudspeaker.

[0004] However, because the tweeter of the speaker is a horn-shaped body open at both ends, the inside of the speaker is directly connected to the external environment, making it difficult to achieve an effective seal and thus hindering its waterproof performance. Therefore, this speaker is unsuitable for most usage scenarios, such as most outdoor environments where waterproofing is required. Summary of the Invention

[0005] In view of this, the present invention provides an outdoor waterproof mid-high frequency speaker to solve the above problems.

[0006] An outdoor waterproof midrange / tweeter includes a frame, a woofer fixedly mounted on the frame, and a tweeter housed within the woofer. The woofer includes a bass magnetic circuit system located on one side of the bottom of the frame, and a bass resonator system housed within the frame. The bass magnetic circuit system includes a T-iron, a magnet sleeved on the T-iron, and a waveguide disposed on one side of the magnet. The bass resonator system includes a bass voice coil suspended within a magnetic gap, a bass spider fixedly connected to the bass voice coil, and a bass diaphragm fixedly connected to the bass voice coil. The tweeter and woofer are coaxially arranged. The tweeter includes a tweeter bracket, a tweeter magnetic circuit located on the side of the tweeter bracket facing the woofer magnetic circuit system, a tweeter diaphragm fixedly clamped on the tweeter bracket, a tweeter voice coil fixedly connected to one side of the tweeter diaphragm, a phase plug fixedly disposed on the side of the tweeter diaphragm opposite to the tweeter voice coil, a tweeter cup fixedly disposed on one side of the tweeter bracket, and a waterproof seal fixedly disposed at one end of the tweeter cup. One end of the tweeter magnetic circuit is inserted into the T-shaped iron, and the other end is inserted into the tweeter bracket, thereby mounting the tweeter inside the woofer voice coil. The tweeter cup is fixedly disposed on the side of the tweeter bracket opposite to the tweeter magnetic circuit. One side of the waterproof seal is fixedly bonded to the woofer diaphragm, and the other side is fixedly bonded to the tweeter cup, thereby forming a waterproof seal inside the tweeter.

[0007] Furthermore, the iron post of the T-iron has at least one through hole in the axial direction, and a mounting hole is provided at one end of the iron post of the T-iron near the bass vibration system.

[0008] Furthermore, the waterproof seal is made of a waterproof material.

[0009] Furthermore, the cross-section of the waterproof seal is arc-shaped.

[0010] Furthermore, the axial height of the tweeter is higher than the axial height of the bass voice coil.

[0011] Furthermore, the outer diameter of the tweeter bracket is smaller than the inner diameter of the bass voice coil.

[0012] Furthermore, the phase plug has a frustum structure on the side closer to the tweeter diaphragm and a bullet shape on the side farther from the tweeter diaphragm.

[0013] Furthermore, the tweeter bracket includes a lower bracket and an upper bracket fixedly connected to the lower bracket.

[0014] Compared with the prior art, the outdoor waterproof mid-high frequency speaker provided by this invention mounts the tweeter on the T-iron of the woofer and houses it within the woofer voice coil. The tweeter includes a tweeter bracket, a tweeter magnetic circuit located on the side of the tweeter bracket facing the woofer magnetic circuit system, a tweeter diaphragm fixedly clamped on the tweeter bracket, a tweeter voice coil fixedly connected to one side of the tweeter diaphragm, a phase plug fixedly disposed on the side of the tweeter diaphragm opposite to the tweeter voice coil, a tweeter cup fixedly disposed on one side of the tweeter bracket, and a waterproof seal fixedly disposed at one end of the tweeter cup. One end of the tweeter magnetic circuit is inserted into the mounting hole, and the other end is inserted into the tweeter bracket, thereby mounting the tweeter on the T-iron. The tweeter cup is disposed on the side of the tweeter bracket opposite to the tweeter magnetic circuit, and the axial height of the tweeter cup is higher than the axial height of the woofer voice coil. The waterproof seal is made of waterproof material and is fixedly connected to the bass diaphragm and the tweeter, thereby forming a waterproof seal inside the speaker and giving the speaker a good waterproof effect. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an outdoor waterproof mid-high frequency speaker provided by this utility model.

[0016] Figure 2 for Figure 1 A cross-sectional structural diagram of an outdoor waterproof mid-high frequency speaker.

[0017] Figure 3 for Figure 1 A schematic diagram of the T-iron structure of an outdoor waterproof midrange tweeter.

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the tweeter bracket of an outdoor waterproof mid-high frequency loudspeaker.

[0019] Figure 5 for Figure 1 A schematic diagram of the tweeter cup structure in an outdoor waterproof mid-high frequency loudspeaker. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below. It should be understood that the description of this utility model herein is not intended to limit the scope of protection of this utility model.

[0021] like Figures 1 to 5The diagram shown is a structural schematic of an outdoor waterproof mid-high frequency speaker provided by this utility model. The outdoor waterproof mid-high frequency speaker includes a frame 10, a woofer 20 fixedly mounted on the frame 10, and a tweeter 30 housed within the woofer 20. It is understood that the outdoor waterproof mid-high frequency speaker should also include other related functional components, such as an assembly housing, electrical connection components, fasteners, etc., all of which are prior art known to those skilled in the art and will not be described in detail here.

[0022] The frame 10 is used to support and fix the woofer 20, thereby facilitating the assembly of the various components of the woofer 20, as well as the woofer 20 and the tweeter 30, to form the entire speaker unit. The structure and dimensions of the frame 10 can be set according to the specifications of the speaker, so as to accommodate the assembly of the woofer 20 and the tweeter 30. Multiple terminals should also be provided on the outside of the frame 10. These terminals are used to supply power to the woofer 20 and the tweeter 30. The frame 10 itself is existing technology and will not be described in detail here.

[0023] The woofer 20 includes a bass magnetic circuit system 21 located on one side of the bottom of the frame 10, and a bass vibration system 22 housed within the frame 10.

[0024] The bass magnetic circuit system 21 includes a T-iron 211, a magnet 212 sleeved on the T-iron 211, and a Wheatstone 213 disposed on one side of the magnet 212.

[0025] The T-shaped iron 211 consists of a yoke plate and an iron column forming a T-shape. The T-shaped iron 211 is primarily used for constructing the magnetic circuit and conducting magnetism. When the speaker is powered on, the T-shaped iron 211, the magnet 212, and the washer 213 form a magnetic circuit, creating a magnetic field. The iron column of the T-shaped iron 211 has at least one through-hole in the axial direction. This through-hole can be used for heat dissipation and wiring, etc., which is existing technology and will not be described in detail here. A mounting hole 214 is provided at the end of the iron column of the T-shaped iron 211 near the bass vibration system 22. This mounting hole 214 is used to mount the tweeter 30, and will therefore be described in further detail below in conjunction with the tweeter 30.

[0026] The magnet 212 is mainly used to provide a magnetic field, thereby providing driving force for the bass vibration system 22. The washer 213 is located on one side of the magnet 212 and between the magnet 212 and the frame 10. The washer 213 and the T-iron 211 together form a magnetic circuit, thereby improving the efficiency of the magnetic field. The magnet 212 and the washer 213 are both spaced and sleeved on the iron post of the T-iron 211, thereby forming a magnetic gap between the magnet 212 and the iron post of the T-iron 211. The magnet 212 and the washer 213 are both existing technologies and will not be described in detail here.

[0027] The bass vibration system 22 includes a bass voice coil 221 disposed and suspended in the magnetic gap, a bass spider 222 fixedly connected to the bass voice coil 221, and a bass diaphragm 223 fixedly connected to the bass voice coil 221.

[0028] One end of the bass voice coil 221 is inserted into the magnetic gap formed by the magnet 212, the Wassel 213, and the T-iron 211. When a current with continuously changing direction and magnitude is applied, the electromagnetic field generated by the bass voice coil 221 interacts with the magnetic field of the magnetic circuit system 21, causing the bass voice coil 221 to move axially up and down within the magnetic gap, thereby driving the bass diaphragm 223 to vibrate and produce sound.

[0029] The outer ring of the bass spring 222 is fixedly connected to the frame 10, and its inner ring is fixedly connected to the outer wall of the bass voice coil 24. The bass spring 25 is used to support the bass voice coil 24 so that it can be suspended in the magnetic gap and move up and down along the axis under the action of the magnetic field.

[0030] The outer ring of the bass diaphragm 223 is fixedly clamped to one end of the frame 10, and the inner ring is similarly fixedly connected to the outer wall of the bass voice coil 221. When the bass voice coil 24 moves, it drives the bass diaphragm 26 to vibrate, thereby producing sound. The bass vibration system 22 itself is existing technology and will not be described in detail here.

[0031] The tweeter 30 and the woofer 20 are coaxially arranged and housed within the woofer voice coil 221. The tweeter 30 includes a tweeter bracket 31, a tweeter magnetic circuit 32 located on the side of the tweeter bracket 31 facing the woofer magnetic circuit system 21, a tweeter diaphragm 33 fixedly clamped on the tweeter bracket 31, a tweeter voice coil 34 fixedly connected to one side of the tweeter diaphragm 33, a phase plug 35 fixedly disposed on the side of the tweeter diaphragm 33 opposite to the tweeter voice coil 34, a tweeter cup 36 fixedly disposed on one side of the tweeter bracket 31, and a waterproof seal 37 fixedly disposed at one end of the tweeter cup 36.

[0032] The tweeter bracket 31 is mounted within the bass voice coil 221 via the tweeter magnetic circuit 32. It houses and secures the tweeter diaphragm 33, tweeter voice coil 34, phase plug 35, and tweeter cup 36, facilitating the assembly of the tweeter magnetic circuit 32, tweeter diaphragm 33, tweeter voice coil 34, phase plug 35, tweeter cup 36, and waterproof seal 37 into the overall tweeter 30. The outer diameter of the tweeter bracket 31 is smaller than the inner diameter of the bass voice coil 221, creating a gap between the tweeter bracket 31 and the inner wall of the bass voice coil 221. This prevents the tweeter bracket 31 from contacting and rubbing against the inner diameter of the bass voice coil 221, thus avoiding any impact on the function of the bass speaker 20.

[0033] like Figure 4 As shown, the tweeter bracket 31 includes a lower bracket 311 and an upper bracket 312 fixedly connected to the lower bracket 311. The lower bracket 311 and the upper bracket 312 are matched to each other so that they can be fixedly connected together. Specifically, multiple positioning slots are provided on the outer contour of the lower bracket 311, and multiple connecting holes are also provided on the lower bracket 311. Correspondingly, multiple positioning clips that fit the positioning slots of the lower bracket 311 are provided along the outer contour of the upper bracket 312, and multiple connecting holes corresponding to the lower bracket 311 are also provided on the upper bracket 312. Therefore, the lower bracket 311 and the upper bracket 312 can be engaged by positioning clips and slots, and fixed together by fasteners such as bolts through the connecting holes.

[0034] The tweeter magnetic circuit 32 is also composed of a tweeter T-iron, a tweeter magnet, a tweeter woofer, and other components. The tweeter T-iron has a cylindrical structure, with the magnet and woofer housed within it. A magnetic gap is formed between the outer walls of the magnet and woofer and the inner wall of the tweeter T-iron. The tweeter magnetic circuit 32 provides a magnetic field to drive the tweeter voice coil 34. The tweeter magnetic circuit 32 itself is existing technology and will not be described in detail here. One end of the tweeter T-iron is inserted into the mounting hole 214, and the other end is inserted into the tweeter bracket 31, thereby mounting the tweeter 30 on the T-iron 211 and housing it within the bass voice coil 221.

[0035] The tweeter diaphragm 33 is fixedly clamped between the upper support 312 and the lower support 311 of the tweeter bracket 31. One end of the tweeter voice coil 34 is fixedly connected to the tweeter diaphragm 33, and the other end is inserted into the magnetic gap of the tweeter magnetic circuit 32. Under the action of the magnetic field, the tweeter voice coil 34 moves up and down axially, causing the tweeter diaphragm 33 to vibrate. The tweeter diaphragm 33 and the tweeter voice coil 34 are existing technologies and will not be described in detail here.

[0036] The phase plug 35 is fixedly inserted in the middle of the tweeter diaphragm 33. Its main function is to compress the high frequencies and improve the phase consistency and frequency response characteristics of the sound waves. The phase plug 35 is usually made of metal materials, such as aluminum, or plastic materials. The working principle and function of the phase plug 35 are existing technologies and will not be described in detail here. The side of the phase plug 35 closest to the tweeter diaphragm 33 has a frustum structure, while the side furthest from the tweeter diaphragm 33 is bullet-shaped. Therefore, when guiding the sound waves of the tweeter diaphragm 33, the frustum-shaped side of the phase plug 35 has a focusing effect on the sound waves, and then diffuses them along the bullet-shaped end of the phase plug 35. At the same time, the bullet-shaped head of the phase plug 35 reduces the reflection of sound waves. Therefore, the phase plug 35 makes the sensitivity of the speaker about 10dB higher than that of conventional dome-type phase plugs.

[0037] The tweeter 36 is fixedly mounted on the upper bracket 312 and is used to optimize the high-frequency sound performance of the speaker and improve the overall sound quality of the speaker. Specifically, a mounting flange 313 is provided at the end of the upper bracket 312 facing the tweeter 36. Simultaneously, a mounting groove 361 is provided at the end of the tweeter 36 facing the tweeter bracket 312, corresponding to the mounting flange 313. When the tweeter 36 is mounted on the tweeter bracket 322, the mounting flange 313 is inserted into the mounting groove 361, thereby mounting the tweeter 36 on the tweeter bracket 322. The axial height of the tweeter 36 is higher than the axial height of the bass voice coil 221, thus preventing the waterproof seal 37 from being too low when mounted on the tweeter 36, which could affect the movement of the bass voice coil 221.

[0038] The waterproof seal 37 is made of a waterproof material, such as PU. The cross-section of the waterproof seal 37 is arc-shaped, with one side fixedly bonded to the inner wall of the bass diaphragm 223 and the other side fixedly bonded to the inner wall of the tweeter 36. Therefore, the tweeter 36 and the bass diaphragm 233 together mount the waterproof seal 37 above the bass voice coil 221, thereby creating a seal inside the speaker and providing dust and water protection.

[0039] Compared with the prior art, the outdoor waterproof mid-high frequency speaker provided by this invention mounts the tweeter 30 on the T-iron 211 of the woofer 20 and houses it within the woofer voice coil 221. The tweeter 30 includes a tweeter bracket 31, a tweeter magnetic circuit 32 located on the side of the tweeter bracket 31 facing the woofer magnetic circuit system 21, a tweeter diaphragm 33 fixedly clamped on the tweeter bracket 31, a tweeter voice coil 34 fixedly connected to one side of the tweeter diaphragm 33, a phase plug 35 fixedly mounted on the side of the tweeter diaphragm 33 opposite to the tweeter voice coil 34, a tweeter cup 36 fixedly mounted on one side of the tweeter bracket 31, and a waterproof seal 37 fixedly mounted at one end of the tweeter cup 36. One end of the tweeter magnetic circuit 32 is inserted into the mounting hole 214, and the other end is inserted into the tweeter bracket 31, thereby mounting the tweeter 30 on the T-iron 211. The tweeter cup 36 is located on the side of the tweeter bracket 31 opposite to the tweeter magnetic circuit 32, and the axial height of the tweeter cup 36 is higher than the axial height of the bass voice coil 221. The waterproof seal 37 is made of waterproof material and is fixedly connected to the bass diaphragm 223 and the tweeter cup 36, thereby forming a waterproof seal inside the speaker. The speaker's sensitivity is further improved by approximately 10 dB through further optimization of the phase plug 35. Therefore, the speaker not only has good waterproof performance but also optimized performance.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An outdoor waterproof mid-high frequency loudspeaker, characterized in that: The outdoor waterproof mid-high pitch loudspeaker comprises a frame, a bass loudspeaker fixedly arranged on the frame, and a treble loudspeaker accommodated in the bass loudspeaker, the bass loudspeaker comprises a bass magnetic circuit system arranged on one side of the bottom of the frame and a bass vibration system accommodated in the frame, the bass magnetic circuit system comprises a T-shaped iron, a magnet sleeved on the T-shaped iron, and a Wass arranged on one side of the magnet, the bass vibration system comprises a bass voice coil suspended in a magnetic gap, a bass reed fixedly connected to the bass voice coil, and a bass diaphragm fixedly connected to the bass voice coil, the treble loudspeaker is coaxially arranged with the bass loudspeaker, the treble loudspeaker comprises a treble support, a treble magnetic circuit arranged on one side of the treble support facing the bass magnetic circuit system, a treble diaphragm fixedly clamped on the treble support, a treble voice coil fixedly connected to one side of the treble diaphragm, a phase plug fixedly arranged on the side of the treble diaphragm away from the treble voice coil, a treble cup fixedly arranged on one side of the treble support, and a waterproof sealing element fixedly arranged on one end of the treble cup, one end of the treble magnetic circuit is inserted into the T-shaped iron, and the other end is inserted into the treble support, so that the treble loudspeaker is installed in the bass voice coil, the treble cup is fixedly arranged on the side of the treble support away from the treble magnetic circuit, one side of the waterproof sealing element is fixedly adhered to the bass diaphragm, and the other side is fixedly adhered to the treble cup, so as to form a waterproof seal inside the loudspeaker.

2. The outdoor waterproof mid-high pitch horn of claim 1, wherein: At least one through hole is formed in the iron column of the T-shaped iron in the axial direction, and a mounting hole is arranged on one end of the iron column of the T-shaped iron close to the bass vibration system.

3. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The waterproof sealing element is made of waterproof material.

4. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The cross section of the waterproof sealing element is arranged in an arc shape.

5. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The axial height of the treble cup is higher than the axial height of the bass voice coil.

6. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The outer diameter of the treble support is smaller than the inner diameter of the bass voice coil.

7. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The side of the phase plug close to the treble diaphragm is in a circular truncated cone structure, and the side of the phase plug away from the treble diaphragm is in a bullet head shape.

8. The outdoor waterproof mid-high pitch horn of claim 1, wherein: The treble support comprises a lower support and an upper support fixedly connected to the lower support.

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