CN212727397U

CN212727397U - Flat diaphragm low-frequency loudspeaker

Info

Publication number: CN212727397U
Application number: CN202021736940.4U
Authority: CN
Inventors: 李晶
Original assignee: Tianjin Yinuo Electroacoustic Technology Co ltd
Current assignee: Tianjin Yinuo Electroacoustic Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-03-16
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a flat diaphragm low frequency loudspeaker relates to speaker technical field. The flat diaphragm low-frequency loudspeaker comprises a shell, wherein a partition plate is fixedly connected inside the shell, a cover plate is arranged at the top of the shell, a loudspeaker assembly is arranged inside the shell, and a fixing assembly is arranged inside the shell; the loudspeaker subassembly includes magnet, magnetic conductive plate, magnetic conductive post, voice coil loudspeaker voice coil and flat diaphragm, fixed subassembly includes spring, pivot, cavity, bullet cap, horizontal pole, fixed plate and splint, spring top fixedly connected with fixed block, pivot one side is provided with the fixture block, the inside spacing groove of having seted up of cavity, bullet cap bottom sets up to the cusp. This flat diaphragm low frequency speaker splint wind the fixed plate and rotate downwards, fix the apron, stimulate the stay cord once more, splint and apron separation are favorable to carrying out the dismouting to the apron, if need overhaul speaker inside, can open the apron fast, raise the efficiency.

Description

Flat diaphragm low-frequency loudspeaker

Technical Field

The utility model relates to a speaker technical field specifically is a flat diaphragm low frequency loudspeaker.

Background

A speaker is a device that converts low-frequency electric signals into sound. Loudspeakers are sometimes subsumed under the term "acoustic transducer" or "horn". Sound generally refers to noise, tones, notes or other sound types, and loudspeakers are used in all areas of life such as cinema, television, and especially also in headphones or portable wireless electronic devices, in some loudspeaker chassis having dome-shaped or even flat membranes instead of funnel-shaped membranes, which have a good performance compared to the same type of loudspeaker.

Traditional flat diaphragm woofer outside is provided with the dust cover, but mostly is through the bolt fastening, is difficult to the dismouting, inconvenient maintenance, and loading and unloading efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a flat diaphragm woofer to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a flat diaphragm low-frequency loudspeaker comprises a shell, wherein a partition plate is fixedly connected inside the shell, a cover plate is arranged at the top of the shell, a loudspeaker assembly is arranged inside the shell, and a fixing assembly is arranged inside the shell;

the loudspeaker assembly comprises a magnet, a magnetic conduction plate, magnetic conduction columns, a voice coil and a flat diaphragm, wherein the magnetic conduction plate is fixedly connected to two sides of the bottom of the partition plate;

the fixing component comprises a spring, a rotating shaft, a cavity, a bullet cap, a cross rod, a fixing plate and a clamping plate, the spring is fixedly connected to the bottom end inside the shell, the top of the spring is fixedly connected with the fixing block, the rotating shaft is sleeved outside the fixing block and is rotatably connected with the fixing block, one side of the rotating shaft is provided with the clamping block, the top of the clamping block is arranged to be an inclined surface, the cavity is sleeved outside the rotating shaft and is movably sleeved with the rotating shaft, a limiting groove is formed inside the cavity, the bullet cap is sleeved outside the rotating shaft and is slidably connected with the rotating shaft, the bottom end of the bullet cap is arranged to be a tooth shape, one side of the bottom of the bullet cap is fixedly connected with a limiting block, one end of the cross rod is hinged with the rotating shaft, the cross rod penetrates through the shell and is slidably connected, the clamping plate is hinged with the guide rod.

Preferably, the bottom end of the bullet cap is fixedly connected with a pull rope, the pull rope penetrates through the rotating shaft and the fixing block and extends to the outer side of the shell, and one end of the pull rope, far away from the bullet cap, is fixedly connected with a pull ring, so that the bullet cap can be pulled downwards.

Preferably, the clamping blocks are matched with the saw teeth at the bottom end of the bullet cap, and the number of the saw teeth at the bottom end of the bullet cap is twice that of the clamping blocks, so that the clamping blocks can rotate to the adjacent saw teeth.

Preferably, the clamping block is connected to the inner part of the limiting groove in a sliding mode, and limiting of the rotating shaft is facilitated.

Preferably, the bottom end of the limiting groove is an inclined plane, and the length of the two adjacent limiting grooves is different, so that the fixing positions of the clamping blocks are different.

Preferably, the quantity of stopper equals with the quantity of spacing groove, stopper sliding connection is favorable to spacing to the bullet cap in the spacing inslot portion.

Preferably, the top of the shell is provided with a dust cover, which is beneficial to preventing dust from entering the shell.

Preferably, the cavity outside fixedly connected with support, support fixed connection is in the inside bottom of casing, is favorable to fixing the cavity.

Preferably, the number of the clamping blocks is set to be a plurality, and the plurality of clamping blocks are distributed on one side of the rotating shaft in an annular array, so that the stability of the rotating shaft is improved.

The utility model provides a flat diaphragm woofer, its beneficial effect who possesses as follows:

1. when the flat diaphragm low-frequency loudspeaker is descended to drive the rotating shaft to descend, the sawteeth at the bottom end of the elastic cap drive the clamping block to slide downwards along the limiting groove, when the clamping block slides out of the limiting groove, because the top of the clamping block is arranged to be an inclined plane and the top end of the clamping block is not matched with the sawteeth at the bottom end of the elastic cap, the rotating shaft is matched with the sawteeth at the bottom end of the elastic cap under the action of the elastic force of the spring, the inclined plane at the top of the clamping block is contacted with the adjacent limiting groove, so that the clamping block moves to the adjacent limiting groove, because the lengths of the adjacent limiting grooves are different, the clamping block is clamped on the shorter limiting groove to fix the clamping block, one end of the cross rod is hinged with the fixing block, when the fixing block descends to drive the other end of the cross rod to ascend, the cross rod drives the guide, is favorable for conveniently disassembling and assembling the cover plate.

2. This flat diaphragm low frequency speaker is favorable to preventing that the dust from getting into the casing, prevents that the dust from producing the influence to the speaker, and this device is favorable to carrying out the dismouting to the apron, if needs overhaul speaker inside, can open the apron fast, raises the efficiency, saves time.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a sectional view of the cavity of the present invention.

In the figure: 1. a housing; 2. a partition plate; 3. a cover plate; 4. a magnet; 5. a magnetic conductive plate; 6. a magnetically conductive post; 7. a voice coil; 8. a flat membrane sheet; 9. a spring; 10. a rotating shaft; 11. a cavity; 12. a bullet cap; 13. a cross bar; 14. a fixing plate; 15. a splint; 16. a fixed block; 17. a clamping block; 18. a limiting groove; 19. a limiting block; 20. pulling a rope; 21. a dust cover; 22. a support; 23. a guide rod.

Detailed Description

The embodiment of the utility model provides a flat diaphragm low frequency loudspeaker, as shown in fig. 1-4, including casing 1, casing 1 top is provided with dust cover 21, be favorable to preventing the dust to get into casing 1, bullet cap 12 bottom fixedly connected with stay cord 20, stay cord 20 runs through pivot 10 and fixed block 16 and extends to the casing 1 outside, stay cord 20 keeps away from bullet cap 12 one end fixedly connected with pull ring, be favorable to pulling bullet cap 12 downwards, casing 1 inside fixedly connected with baffle 2, casing 1 top is provided with apron 3, casing 1 inside is provided with the speaker subassembly, casing 1 inside is provided with the fixed subassembly;

the loudspeaker assembly comprises a magnet 4, a magnetic conduction plate 5, magnetic conduction columns 6, a voice coil 7 and a flat diaphragm 8, wherein the magnetic conduction plate 5 is fixedly connected to two sides of the bottom of the partition plate 2, the magnet 4 is fixedly connected to the bottom of the magnetic conduction plate 5, the magnetic conduction columns 6 are fixedly connected to the bottom of the partition plate 2, the voice coil 7 is fixedly connected to the top of the partition plate 2, and the flat diaphragm 8 is fixedly connected to one side inside the shell 1;

the fixing component comprises a spring 9, a rotating shaft 10, a cavity 11, an elastic cap 12, a cross rod 13, a fixing plate 14 and a clamping plate 15, the spring 9 is fixedly connected with the bottom end in the shell 1, the top of the spring 9 is fixedly connected with a fixing block 16, the rotating shaft 10 is sleeved outside the fixing block 16 and is rotatably connected with the fixing block 16, one side of the rotating shaft 10 is provided with a plurality of clamping blocks 17, the plurality of clamping blocks 17 are distributed on one side of the rotating shaft 10 in an annular array manner, so that the stability of the rotating shaft 10 is favorably improved, the clamping blocks 17 are matched with sawteeth at the bottom end of the elastic cap 12, the quantity of the sawteeth at the bottom end of the elastic cap 12 is twice that of the clamping blocks 17, so that the clamping blocks 17 can be rotated to adjacent sawteeth positions, the top of the clamping blocks 17 is arranged to be an inclined plane, the fixing device is beneficial to fixing the cavity 11, the limiting grooves 18 are formed in the cavity 11, the bottom ends of the limiting grooves 18 are arranged to be inclined planes, the lengths of two adjacent limiting grooves 18 are arranged to be different, the fixing positions of the clamping blocks 17 are different, the number of the limiting blocks 19 is equal to that of the limiting grooves 18, the limiting blocks 19 are connected in the limiting grooves 18 in a sliding mode to limit the elastic caps 12, the clamping blocks 17 are connected in the limiting grooves 18 in a sliding mode to limit the rotating shaft 10, the elastic caps 12 are sleeved on the outer side of the rotating shaft 10 and are connected with the rotating shaft 10 in a sliding mode, the bottom ends of the elastic caps 12 are arranged to be toothed, the limiting blocks 19 are fixedly connected to one side of the bottoms of the elastic caps 12, one ends of the cross rods 13 are hinged to the rotating shaft 10, the cross rods 13 penetrate through the shell 1 and are connected with the shell 1 in a, the clamp plate 15 is hinged to the guide rod 23.

The implementation mode is specifically as follows: the spring 9 is fixedly connected with the bottom end in the shell 1, the fixed block 16 is fixedly connected with the top end of the spring 9, the rotating shaft 10 is sleeved outside the fixed block 16 and is rotatably connected with the fixed block 16, the cavity 11 is movably sleeved outside the rotating shaft 10, the elastic cap 12 is sleeved outside the rotating shaft 10 and is slidably connected with the rotating shaft 10, the pull ring is pulled, the pull ring drives the pull rope 20 to move downwards, the pull rope 20 penetrates through the rotating shaft 10 and is fixedly connected with the bottom end of the elastic cap 12, the pull rope 20 moves downwards to drive the elastic cap 12 to move downwards, the limiting block 19 is fixedly connected to one side of the bottom of the elastic cap 12, limiting of the elastic cap 12 is facilitated, upward ejection of the elastic cap 12 is prevented, the bottom end of the elastic cap 12 is toothed, limiting of the clamping block 17 outside the rotating shaft 10 is facilitated, when the elastic cap 12 descends to drive the rotating shaft 10, the sawtooth at, when the fixture block 17 slides out of the limiting groove 18, because the top of the fixture block 17 is set to be an inclined surface and the top of the fixture block 17 is not matched with the saw teeth at the bottom end of the elastic cap 12, the rotating shaft 10 is matched with the saw teeth at the bottom end of the elastic cap 12 under the elastic force of the spring 9, so the inclined surface at the top of the fixture block 17 is contacted with the adjacent limiting groove 18, the fixture block 17 moves to the adjacent limiting groove 18, because the lengths of the adjacent limiting grooves 18 are different, the fixture block 17 is clamped on the shorter limiting groove 18 to fix the fixture block 17, meanwhile, one end of the cross rod 13 is hinged with the fixing block 16, the cross rod 13 penetrates through the shell 1 and is connected with the shell 1 in a sliding manner, when the fixing block 16 descends to drive the other end of the cross rod 13 to ascend, the end of the cross rod 13 far away from the fixing block 16 is hinged with the guide rod 23, the, and fixed plate 14 top runs through splint 15 and is connected with splint 15 rotation, so the guide arm 23 rises and drives splint 15 and rotate downwards around fixed plate 14, fix apron 3, stimulate stay cord 20 once more, bullet cap 12 descends and drives pivot 10 decline, fixture block 17 slides to next longer spacing groove 18, the pivot 10 is fixed to the elasticity of spring 9, fixed block 16 rises and drives horizontal pole 13 and keep away from 16 one end decline of fixed block, make guide arm 23 descend, guide arm 23 descends and drives splint 15 and rotate around fixed plate 14, splint 15 and apron 3 separation, be favorable to carrying out the dismouting to apron 3, if need overhaul speaker inside, can open apron 3 fast, the efficiency is improved, time saving.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A flat diaphragm woofer including a housing (1), characterized in that: a partition plate (2) is fixedly connected inside the shell (1), a cover plate (3) is arranged at the top of the shell (1), a loudspeaker assembly is arranged inside the shell (1), and a fixing assembly is arranged inside the shell (1);

the loudspeaker assembly comprises a magnet (4), a magnetic conduction plate (5), magnetic conduction columns (6), a voice coil (7) and a flat diaphragm (8), wherein the magnetic conduction plate (5) is fixedly connected to two sides of the bottom of the partition plate (2), the magnet (4) is fixedly connected to the bottom of the magnetic conduction plate (5), the magnetic conduction columns (6) are fixedly connected to the bottom of the partition plate (2), the voice coil (7) is fixedly connected to the top of the partition plate (2), and the flat diaphragm (8) is fixedly connected to one side inside the shell (1);

the fixing component comprises a spring (9), a rotating shaft (10), a cavity (11), an elastic cap (12), a cross rod (13), a fixing plate (14) and a clamping plate (15), the spring (9) is fixedly connected with the bottom end inside the shell (1), the top of the spring (9) is fixedly connected with the fixing block (16), the rotating shaft (10) is sleeved on the outer side of the fixing block (16) and is rotatably connected with the fixing block (16), a clamping block (17) is arranged on one side of the rotating shaft (10), the top of the clamping block (17) is arranged to be an inclined plane, the cavity (11) is sleeved on the outer side of the rotating shaft (10) and is movably sleeved with the rotating shaft (10), a limiting groove (18) is formed inside the cavity (11), the elastic cap (12) is sleeved on the outer side of the rotating shaft (10) and is slidably connected with the rotating shaft (10), the bottom end of the elastic cap (12) is arranged, horizontal pole (13) one end is articulated with pivot (10), horizontal pole (13) run through casing (1) and with casing (1) sliding connection, pivot (10) one end is kept away from in horizontal pole (13) articulates there is guide arm (23), guide arm (23) run through fixed plate (14) and with fixed plate (14) sliding connection, fixed plate (14) fixed connection is in casing (1) both sides, splint (15) are articulated with guide arm (23).

2. A flat diaphragm woofer as claimed in claim 1 wherein: the bottom end of the bullet cap (12) is fixedly connected with a pull rope (20), the pull rope (20) penetrates through the rotating shaft (10) and the fixing block (16) and extends to the outer side of the shell (1), and one end of the pull rope (20) far away from the bullet cap (12) is fixedly connected with a pull ring.

3. A flat diaphragm woofer as claimed in claim 1 wherein: the clamping blocks (17) are matched with the saw teeth at the bottom end of the bullet cap (12), and the number of the saw teeth at the bottom end of the bullet cap (12) is twice that of the clamping blocks (17).

4. A flat diaphragm woofer as claimed in claim 1 wherein: the clamping block (17) is connected in the limiting groove (18) in a sliding mode.

5. A flat diaphragm woofer as claimed in claim 1 wherein: the bottom end of each limiting groove (18) is set to be an inclined plane, and the length of each two adjacent limiting grooves (18) is set to be different.

6. A flat diaphragm woofer as claimed in claim 1 wherein: the number of the limiting blocks (19) is equal to that of the limiting grooves (18), and the limiting blocks (19) are connected inside the limiting grooves (18) in a sliding mode.

7. A flat diaphragm woofer as claimed in claim 1 wherein: the top of the shell (1) is provided with a dust cover (21).

8. A flat diaphragm woofer as claimed in claim 1 wherein: the cavity (11) outside fixedly connected with support (22), support (22) fixed connection is in the inside bottom of casing (1).

9. A flat diaphragm woofer as claimed in claim 1 wherein: the number of the clamping blocks (17) is set to be a plurality, and the clamping blocks (17) are distributed on one side of the rotating shaft (10) in an annular array mode.