CN215898005U

CN215898005U - Compact coaxial loudspeaker

Info

Publication number: CN215898005U
Application number: CN202121543737.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Huizhou Difenni Acoustic Technology Co ltd
Current assignee: Huizhou Difenni Acoustic Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-02-22
Anticipated expiration: 2031-07-07

Abstract

The application provides a compact coaxial speaker, wherein same U iron of high pitch loudspeaker unit and woofer unit sharing, the U iron is provided with first cell body and the second cell body that the opening is opposite. First cell body is used for installing the relevant part of high pitch loudspeaker unit, and the second cell body is used for installing the relevant part of low pitch loudspeaker unit, because high pitch loudspeaker unit and low pitch loudspeaker unit have shared the U iron, but reduce height in magnetic circuit's setting to reduce coaxial speaker's overall dimension, satisfy electronic product's frivolousization requirement.

Description

Compact coaxial loudspeaker

Technical Field

The utility model relates to the technical field of loudspeaker manufacturing, in particular to a compact coaxial loudspeaker.

Background

The coaxial loudspeaker is that a high pitch loudspeaker and a low pitch loudspeaker are arranged on the same axle center and are respectively responsible for replaying high pitch and middle low pitch. In the existing coaxial loudspeaker, the high pitch loudspeaker is fixed above the cone of the low pitch loudspeaker through a support column at the bottom, and the loudspeaker is simple in structure and widely applied.

However, in the above-mentioned conventional coaxial speaker, the tweeter projects from the woofer, so that the overall size is high. With the development of light and thin electronic products, higher requirements are put on the size design of the coaxial speaker.

Chinese patent publication No. CN2636564Y discloses a two-unit coaxial speaker, which has a bidirectional T-iron with an axial center hole, wherein the upper and lower plate surfaces of the bidirectional T-iron plate are respectively provided with a cylindrical magnet and a magnetic conductive polar plate ring surrounding the upper and lower core columns of the bidirectional T-iron, and the lower cylindrical magnet and the magnetic conductive polar plate ring, the lower core column of the bidirectional T-iron, and a middle-pitch or high-pitch diaphragm voice coil mounted on the magnetic conductive polar plate ring form a middle-pitch or high-pitch unit. The coaxial speaker, although adjusted in size, requires a specific housing (cabinet) structure to fit it due to the need for two-way sound production.

Disclosure of Invention

In order to solve the above problems of the prior art, the present invention provides a compact coaxial speaker in which a tweeter unit and a woofer unit share the same U-iron, and the height can be reduced in the arrangement of a magnetic circuit system, thereby reducing the overall size of the coaxial speaker.

In order to achieve the purpose, the utility model provides the following technical scheme:

compact coaxial speaker, including tweeter unit and woofer unit, its characterized in that, a U-iron is shared to tweeter unit and woofer unit.

As further description of the technical scheme of the utility model, the U-shaped iron is provided with a first groove body and a second groove body with opposite openings.

As a further description of the technical solution of the present invention, the first tank is located above the second tank, and the opening diameter of the first tank is smaller than the opening diameter of the second tank.

As further described in the technical solution of the present invention, the tweeter unit includes a tweeter magnet, a tweeter washer, a tweeter voice coil, and a tweeter diaphragm; high pitch magnet and high pitch china fold and locate in the first cell body, and high pitch voice coil loudspeaker voice coil cover is located high pitch china periphery, and with the high pitch vibrating diaphragm is connected.

As a further description of the technical solution of the present invention, the tweeter unit further includes a tweeter cylinder disposed on the periphery of the tweeter diaphragm and above the U-iron.

As a further description of the technical scheme of the utility model, a high-pitch magnetic gap is formed between the high-pitch magnet and the high-pitch washer and the inner wall of the first groove body, and the high-pitch voice coil is positioned in the high-pitch magnetic gap.

As further described in the technical solution of the present invention, the woofer unit includes a frame, a woofer diaphragm, a woofer magnet, a bass washer, and a woofer voice coil, the frame is protruded upward in the middle to form a protruding portion, the woofer magnet and the bass washer are stacked on the protruding portion, and the woofer voice coil is sleeved on the periphery of the bass washer and connected to the woofer diaphragm; the bass vibrating diaphragm is fixed in the basin frame.

As further described in the technical solution of the present invention, the woofer unit further includes a first gasket, a second gasket, and a third gasket that are sequentially stacked on the bass washer, and the bass washer, the first gasket, the second gasket, and the third gasket are located in the second tank; bass washer, first gasket, second gasket and third gasket, with be bass magnetism clearance between the inner wall of second cell body, the bass voice coil loudspeaker voice coil is located bass magnetism clearance.

As a further description of the technical solution of the present invention, the woofer unit further includes a fastener, and the fastener sequentially passes through the woofer magnet, the bass washer, the first gasket, the second gasket, and the third gasket, and is fixedly connected to the second tank.

As a further description of the technical solution of the present invention, the woofer unit further includes an elastic wave, one end of the elastic wave is fixedly connected to the bottom of the bass voice coil, and the other end is fixedly connected to the step portion of the frame.

As a further description of the technical solution of the present invention, a heat dissipation bracket is disposed on the periphery of the U-shaped iron, and the heat dissipation bracket includes a horizontal portion and a vertical portion, the horizontal portion is abutted and fixed to the first tank body, and the vertical portion is abutted and fixed to the second tank body.

Based on the technical scheme, the utility model has the following technical effects:

the compact coaxial loudspeaker provided by the utility model adopts the U-shaped iron with the first groove body and the second groove body in opposite directions, and the high pitch loudspeaker monomer and the low pitch loudspeaker monomer share the U-shaped iron, so that the overall height of the coaxial loudspeaker can be reduced; while preserving the tonal qualities of the tweeter and the woofer.

Drawings

Fig. 1 is a cross-sectional view of a compact coaxial loudspeaker of the present invention.

Fig. 2 is an enlarged cross-sectional view of the tweeter unit of the present invention.

Fig. 3 is a schematic structural diagram of a compact coaxial speaker according to the present invention.

Detailed Description

In order that the utility model may be more fully understood, reference will now be made to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The terms "upper", "lower", "left" and "right" are used in reference to the drawings and are intended to indicate relative positions of elements and not to limit the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Fig. 1 shows a sectional view of a compact coaxial speaker of the present embodiment, fig. 2 shows an enlarged sectional view of a tweeter unit of the present embodiment, and with reference to fig. 1 and 2, a compact coaxial speaker includes a tweeter unit 1 and a woofer unit 2, the tweeter unit 1 being fixed above the woofer unit 2 in the same direction, and sharing the same U-iron 3.

The U-iron 3 has a first slot 31 and a second slot 32 with opposite opening directions. The first groove body 31 and the second groove body 32 can be fixed together by means of bonding and welding, and the U-shaped iron 3 can also be integrally formed. In this embodiment, an integrally formed U-shaped iron with two slots is adopted, and the opening diameter of the first slot 31 is smaller than that of the second slot 32. That is, the first tank 31 is mainly used for mounting the relevant parts of the tweeter unit 1, and the second tank 32 is used for mounting the relevant parts of the woofer unit 2.

Specifically, the tweeter unit 1 includes a tweeter magnet 11, a tweeter washer 12, a tweeter voice coil 13, and a tweeter diaphragm 14, wherein the tweeter magnet 11 is placed in the first groove 31, above which the tweeter washer 12 is disposed. The tweeter magnet 11 and the tweeter washer 12 stacked in the first groove 31 constitute a magnetic circuit system of the tweeter unit, providing a uniform magnetic field for the tweeter coil 13. The high-pitch magnet 11 and the high-pitch washer 12 have a high-pitch magnetic gap 15 with the inner wall of the first groove 31, and the high-pitch voice coil 13 is arranged in the high-pitch magnetic gap 15. Wherein, the lower end of the high pitch voice coil 13 is sleeved on the periphery of the high pitch washer 12, and the upper end of the high pitch voice coil 13 is connected with the high pitch vibrating diaphragm 14; and the tweeter coil 13 and the tweeter diaphragm 14 together constitute a vibration system of the tweeter unit. A tweeter horn 16 is also provided around the tweeter diaphragm 14. The tweeter horn 16 is fixed above the U-bar 3. The tweeter unit 1 can provide a good tweeter effect to the coaxial speaker.

With further reference to fig. 1, the woofer unit 2 includes a frame 21, a bass diaphragm 22, a woofer magnet 23, a bass washer 24, a bass voice coil 25, a first spacer 26, a second spacer 27, and a third spacer 28. The frame 21 serves as a main frame of the woofer unit 2 and the coaxial speaker, and a ridge 211 is formed at the center of the bottom of the frame so as to protrude upward. The periphery of the frame 21 is fixedly connected with a bass diaphragm 22.

Above the ridge portion 211, a bass magnet 23 and a bass washer 24 are placed. Wherein the bass magnet 23 is adapted to the shape of the protrusion 211. A first spacer 26, a second spacer 27 and a third spacer 28 are further placed above the bass washer 24, the second spacer 27 being a copper ring. The bass magnet 23, the bass washer 24, the bass voice coil 25, the first spacer 26, the second spacer 27 and the third spacer 28 together form a magnetic circuit system of the woofer unit 2, and provide a uniform magnetic field for the bass voice coil 25.

It should be noted that, in the woofer unit 2, the bass washer 24, the bass voice coil 25, the first gasket 26, the second gasket 27 and the third gasket 28 therein are located in the second groove 32 of the U-shaped iron, that is, the accommodating cavity formed by the second groove 32 with the opening facing downward covers the bass washer 24, the bass voice coil 25, the first gasket 26, the second gasket 27 and the third gasket 28. Moreover, a low-pitch magnetic gap 241 is formed between the low-pitch washer 24, the low-pitch voice coil 25, the first gasket 26, the second gasket 27 and the third gasket 28 and the inner wall of the second groove 32, and the low-pitch voice coil 25 is located in the low-pitch magnetic gap 241. Further, the upper end of the bass voice coil 25 is sleeved on the periphery of the bass washer 24, and the lower end is connected with the bottom of the diaphragm 22. Specifically, the lower end of the bass voice coil 25 is connected to the damper 221. And the other end of the elastic wave 221 is fixed on the step part 212 of the basin stand 21.

In order to fix the positions of the first gasket 26, the second gasket 27 and the third gasket 28, the embodiment further employs a fastening member 29, which sequentially passes through the bass magnet 23, the bass washer 24, the bass voice coil 25, the first gasket 26, the second gasket 27 and the third gasket 28, and is fixedly connected to the second groove 32, so that the bass washer 24, the first gasket 26, the second gasket 27 and the third gasket 28 are fixed in the accommodating cavity of the second groove 32. The woofer unit 2 can provide a good bass effect to the coaxial speaker.

Fig. 3 is a schematic structural diagram of the compact coaxial speaker of the present embodiment, and with reference to fig. 1 and fig. 3, a heat dissipation bracket 4 is disposed on the periphery of the U-shaped iron 3, and the heat dissipation bracket 4 includes a horizontal portion 41 and a vertical portion 42, wherein the horizontal portion 41 is fixed to the first tank 31 in an abutting manner, and the vertical portion 42 is fixed to the second tank 32 in an abutting manner, so as to fix the U-shaped iron; meanwhile, the heat of the woofer unit can be dissipated, and the heat exchange efficiency is improved.

Adopt the coaxial loudspeaker of above-mentioned structure, because tweeter unit and woofer unit have shared the U iron, can do the whole height with coaxial loudspeaker low, under the prerequisite of guaranteeing to have good high pitch effect and bass effect, realize compact structure to satisfy the requirement that present electronic product is frivolous.

The foregoing is merely exemplary and illustrative of the structures of the present invention, which are described in some detail and detail, and are not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the utility model.

Claims

1. The compact coaxial loudspeaker comprises a high pitch loudspeaker unit and a low pitch loudspeaker unit, and is characterized in that the high pitch loudspeaker unit and the low pitch loudspeaker unit share one U-shaped iron;

the U-shaped iron is provided with a first groove body and a second groove body with opposite openings

The first tank body is positioned above the second tank body, and the opening diameter of the first tank body is smaller than that of the second tank body;

the high pitch loudspeaker unit comprises a high pitch magnet, a high pitch washer, a high pitch voice coil and a high pitch vibrating diaphragm; the high-pitch magnet and the high-pitch washer are stacked in the first groove body;

the bass loudspeaker unit comprises a first gasket, a second gasket and a third gasket which are sequentially stacked on a bass washer, and the bass washer, the first gasket, the second gasket and the third gasket are located in the second groove body.

2. The compact coaxial loudspeaker of claim 1, wherein the tweeter voice coil is located around the tweeter washer and is connected to the tweeter diaphragm.

3. The compact coaxial speaker of claim 2, wherein the tweeter unit further comprises a tweeter horn disposed at a periphery of the tweeter diaphragm and above the U-iron.

4. The compact coaxial speaker of claim 2, wherein the tweeter magnet and tweeter washer are in tweeter magnetic gaps with the inner wall of the first channel, the tweeter voice coil being in the tweeter magnetic gaps.

5. The compact coaxial speaker of claim 1, wherein the woofer unit comprises a frame, a woofer diaphragm, a bass magnet, a bass washer and a bass voice coil, the frame is raised upwards in the middle to form a raised part, the bass magnet and the bass washer are stacked on the raised part, and the bass voice coil is sleeved on the periphery of the bass washer and connected with the bass diaphragm; the bass vibrating diaphragm is fixed in the basin frame.

6. The compact coaxial loudspeaker of claim 5, wherein the bass washer, the first gasket, the second gasket, and the third gasket form a bass magnetic gap with the inner wall of the second tank, and the bass voice coil is located in the bass magnetic gap.

7. The compact coaxial speaker of claim 6, wherein the woofer unit further comprises a fastener, the fastener passing through the woofer magnet, the bass washer, the first gasket, the second gasket, and the third gasket in sequence, and being fixedly connected with the second tank.

8. The compact coaxial speaker of claim 7, wherein the woofer unit further comprises a damper, one end of the damper is fixedly connected to a bottom of the woofer coil, and the other end of the damper is fixedly connected to the step of the frame.

9. The compact coaxial speaker of claim 1, wherein a heat dissipating bracket is disposed around the U-iron, the heat dissipating bracket comprises a horizontal portion and a vertical portion, the horizontal portion is secured to the first channel and the vertical portion is secured to the second channel.