Horn structure of sound box

Abstract

The utility model discloses a horn structure of a sound box, which can reduce the interference of mid-bass energy on high pitch energy and improve the high pitch quality of a ceiling sound box. The horn structure of the sound box comprises a metal basin frame, a magnetic circuit system, a supporting seat and a high-pitch horn, the magnetic circuit system is installed at the bottom of the metal basin frame, and a convex shaft coaxial with the metal basin frame is arranged on the face, facing the metal basin frame, of the magnetic circuit system. The end part of the inner side of the supporting seat is coaxially connected with the end surface of the convex shaft; the high-pitch horn comprises a high-pitch mounting seat, a high-pitch voice coil and a high-pitch loudspeaker; the inner side end part of the high pitch mounting seat is coaxially connected with the outer side end part of the supporting seat; the high-pitch voice coil is mounted in the high-pitch mounting seat; the tweeter comprises an annular connecting part and an annular baffle plate which is integrally connected to the outer side end part of the annular connecting part and outwards diffuses and extends along the radial direction of the tweeter, the annular connecting part and the tweeter mounting seat are coaxially arranged, and the annular connecting part is detachably connected with the outer side end part of the tweeter mounting seat.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling speakers, in particular to a horn structure of a speaker. Background Art

[0002] Ceiling speakers are typically installed in the suspended ceiling (also known as the ceiling) of indoor environments such as auditoriums and cinemas, or concealed within the walls. They are widely favored by designers because they do not take up floor space. With the development of related technologies, people have also put forward higher requirements for the sound quality of ceiling speakers.

[0003] Ceiling speakers are different from floor-standing speakers. Their overall size is relatively small, and they need to eliminate interference between low, mid and high tones through reasonable structural design. In particular, the tweeter horn is usually located in the middle of the front of the speaker as a whole, and the low and mid tones propagate forward from the rear of its sides. The mid-bass energy can easily interfere with the treble energy, thereby affecting the treble sound quality. Utility Model Content

[0004] The purpose of the utility model is to provide a horn structure of a speaker, which solves the problems existing in the prior art, can reduce the interference of mid-bass energy on treble energy, and improve the treble sound quality of the ceiling speaker.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] A horn structure of a speaker, comprising a metal basin, a magnetic circuit system, a support seat and a tweeter horn; the magnetic circuit system is installed at the bottom of the metal basin, and a convex shaft coaxial with the metal basin is provided on the side facing the metal basin; the inner end of the support seat is coaxially connected to the end face of the convex shaft; the tweeter horn comprises a tweeter mounting seat, a tweeter coil and a tweeter; the inner end of the tweeter mounting seat is coaxially connected to the outer end of the support seat; the tweeter coil is installed in the tweeter mounting seat; the tweeter comprises an annular connecting portion, and an annular baffle integrally connected to the outer end of the annular connecting portion and extending radially outward from the tweeter, the annular connecting portion is coaxially arranged with the tweeter mounting seat, and is detachably connected to the outer end of the tweeter mounting seat.

[0007] The tweeter is made of aluminum material through a metal stretching process.

[0008] A circle of chamfer is provided between the annular connecting portion and the annular baffle.

[0009] The tweeter speaker and the tweeter mounting seat are connected in a threaded manner to achieve detachable installation.

[0010] The horn structure of the speaker box also includes a spring; a step portion is provided in the metal basin frame, and the periphery of the spring is fixedly connected to the step portion.

[0011] Preferably, the periphery of the elastic wave is connected to the step portion by gluing.

[0012] Preferably, the horn structure of the speaker also includes a bass voice coil; the magnetic circuit system includes a first magnetic conductive plate, a magnet and a second magnetic conductive plate stacked in sequence; the first magnetic conductive plate is fixedly connected to the bottom of the metal basin; the second magnetic conductive plate is provided with the convex shaft, and the convex shaft is sequentially passed through the magnet, the first magnetic conductive plate and the bottom of the metal basin; the bass voice coil is sleeved on the circumference of the convex shaft, and the circumference of the bass voice coil abuts the first magnetic conductive plate; the elastic wave is located on the circumference of the bass voice coil, and the support seat passes through the bass voice coil.

[0013] Preferably, the horn structure of the speaker further comprises a paper cone frame arranged in the metal cone frame; the middle portion of the paper cone frame is sleeved on the circumference of the woofer voice coil, and the tweeter mounting seat is located in the groove structure of the paper cone frame.

[0014] After adopting the above technical solution, the utility model has the following technical effects:

[0015] The utility model optimizes the design of the tweeter horn. The tweeter is composed of an annular connecting part and a circular baffle. The circular baffle can block the mid-bass energy from the back of the circular baffle when the speaker is working, reducing the interference of the mid-bass energy on the treble energy emitted by the tweeter horn, thereby improving the treble sound quality of the speaker. It is especially suitable for smaller ceiling speakers, and the effect is better when the structural design of the various accessories of the speaker is compact. The tweeter 43 is a detachable accessory and can be flexibly replaced according to different product requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of a specific embodiment of the present utility model;

[0017] Figure 2 A cross-sectional view of a specific embodiment of the present utility model;

[0018] Description of Figure Numbers:

[0019] 1-metal basin frame; 11-step part; 2-magnetic circuit system; 21-first magnetic conductive plate; 22-magnet; 23-second magnetic conductive plate; 231-convex shaft; 3-support seat; 4-tweeter horn; 41-tweeter mounting seat; 42-tweeter voice coil; 43-tweeter; 431-annular connecting part; 432-annular baffle; 433-chamfer; 5-elastic wave; 6-woofer voice coil; 7-paper basin frame. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0021] refer to Figure 1-2 As shown, the utility model discloses a horn structure of a speaker, comprising a metal basin frame 1, a magnetic circuit system 2, a support base 3 and a tweeter horn 4;

[0022] The magnetic circuit system 2 is installed at the bottom of the metal basin frame 1, and a convex shaft 231 coaxial with the metal basin frame 1 is provided on the side facing the metal basin frame 1;

[0023] The inner end of the support seat 3 is coaxially connected to the end surface of the protruding shaft 231;

[0024] The tweeter horn 4 includes a tweeter mounting seat 41, a tweeter voice coil 42 and a tweeter 43; the inner end of the tweeter mounting seat 41 is coaxially connected to the outer end of the support seat 3; the tweeter voice coil 42 is installed in the tweeter mounting seat 41; the tweeter 43 includes an annular connecting portion 431, and an annular baffle 432 integrally connected to the outer end of the annular connecting portion 431 and extending radially outward of the tweeter 43; the annular connecting portion 431 is coaxially arranged with the tweeter mounting seat 41 and is detachably connected to the outer end of the tweeter mounting seat 41.

[0025] Through the above scheme, the utility model optimizes the design of the tweeter horn 4, and the tweeter 43 is composed of an annular connecting part 431 and an annular baffle 432. The annular baffle 432 can block the mid-bass energy from the back thereof, reduce the interference of the mid-bass energy on the treble energy emitted by the tweeter horn 4, thereby improving the treble sound quality of the speaker, which is especially suitable for smaller ceiling speakers, and has better effects when the structural design of the various accessories of the speaker is compact; the tweeter 43 is a detachable accessory and can be flexibly replaced according to different product requirements.

[0026] Specific embodiments of the present invention are shown below.

[0027] The tweeter 43 is made of aluminum through a metal drawing process.

[0028] A chamfer 433 is provided between the annular connecting portion 431 and the annular baffle 432 to achieve a smooth transition.

[0029] The tweeter 43 and the tweeter mounting seat 41 are connected by threaded connection to achieve detachable installation.

[0030] The present invention also includes a spring 5; a step portion 11 is provided in the metal basin frame 1, and the periphery of the spring 5 is fixedly connected to the step portion 11. In this embodiment, the periphery of the spring 5 is connected to the step portion 11 by gluing to achieve relative fixation with the step portion 11.

[0031] Furthermore, the present invention includes a woofer voice coil 6. The magnetic circuit system 2 includes a first magnetic conductive plate 21, a magnet 22, and a second magnetic conductive plate 23 stacked in sequence. The first magnetic conductive plate 21 is fixedly connected to the bottom of the metal frame 1. The second magnetic conductive plate 23 is provided with the aforementioned protruding shaft 231, which extends through the magnet 22, the first magnetic conductive plate 21, and the bottom of the metal frame 1 in sequence. The woofer voice coil 6 is sleeved on the circumference of the protruding shaft 231, and the circumference of the woofer voice coil 6 abuts the first magnetic conductive plate 21. The damper 3 is located on the circumference of the woofer voice coil 6, and the support base 3 extends through the woofer voice coil 6. The first and second magnetic conductive plates 21, 23 each serve to conduct magnetism, forming the S (-) and N (+) poles of the magnetic circuit, respectively. The magnet 22 provides magnetic field power.

[0032] Secondly, the present invention further comprises a paper cone frame 7 arranged in the metal cone frame 1 ; the middle portion of the paper cone frame 7 is sleeved on the circumference of the woofer voice coil 6 , and the tweeter mounting seat 41 is located in the groove structure of the paper cone frame 7 .

[0033] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A horn structure of a speaker, characterized by: Including metal basin frame, magnetic circuit system, support seat and tweeter horn; The magnetic circuit system is installed at the bottom of the metal basin frame, and a convex shaft coaxial with the metal basin frame is provided on the side of the magnetic circuit system facing the metal basin frame; The inner end portion of the support seat is coaxially connected to the end surface of the convex shaft; The tweeter horn includes a tweeter mounting seat, a tweeter coil and a tweeter; the inner end of the tweeter mounting seat is coaxially connected to the outer end of the support seat; the tweeter coil is installed in the tweeter mounting seat; the tweeter includes an annular connecting portion, and an annular baffle integrally connected to the outer end of the annular connecting portion and extending radially outward from the tweeter; the annular connecting portion is coaxially arranged with the tweeter mounting seat and is detachably connected to the outer end of the tweeter mounting seat.

2. The horn structure of the speaker according to claim 1, characterized in that: The tweeter is made of aluminum material through a metal stretching process.

3. The horn structure of the speaker according to claim 1, characterized in that: A circle of chamfer is provided between the annular connecting portion and the annular baffle.

4. The horn structure of the speaker according to claim 1, characterized in that: The tweeter speaker and the tweeter mounting seat are connected in a threaded manner to achieve detachable installation.

5. The horn structure of the speaker according to claim 1, characterized in that: It also includes a spring; a step portion is provided in the metal basin frame, and the periphery of the spring is fixedly connected to the step portion.

6. The horn structure of the speaker according to claim 5, characterized in that: The periphery of the elastic wave is connected to the step portion by gluing.

7. The horn structure of the speaker according to claim 5, characterized in that: It also includes a bass voice coil; the magnetic circuit system includes a first magnetic conductive plate, a magnet, and a second magnetic conductive plate stacked in sequence; the first magnetic conductive plate is fixedly connected to the bottom of the metal basin; the second magnetic conductive plate is provided with the convex shaft, and the convex shaft is sequentially passed through the magnet, the first magnetic conductive plate and the bottom of the metal basin; the bass voice coil is sleeved on the circumference of the convex shaft, and the circumference of the bass voice coil abuts the first magnetic conductive plate; the elastic wave is located on the circumference of the bass voice coil, and the support seat passes through the bass voice coil.

8. The horn structure of the speaker according to claim 7, characterized in that: It also includes a paper cone frame arranged in the metal cone frame; the middle part of the paper cone frame is sleeved on the circumference of the bass voice coil, and the tweeter mounting seat is located in the groove structure of the paper cone frame.

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