Loudspeaker

Abstract

The loudspeaker comprises a frame and a mesh enclosure, the frame comprises a top ring frame, a mounting portion and a plurality of inclined arms, the top ring frame is connected with the mounting portion through the inclined arms, a ventilation window is formed between every two adjacent inclined arms, and the frame is provided with a hot melting column; the net cover comprises a frame and a breathable isolation net arranged on the frame, the breathable isolation net covers all the breathable windows, the frame is provided with hot melting hole grooves matched with the hot melting columns, and the frame is connected with the basin stand in a hot melting mode. The loudspeaker is provided with the mesh enclosure, so that the sound-absorbing particles can be isolated, and the sound-absorbing particles in the box body of the loudspeaker can be effectively prevented from invading into the loudspeaker to influence the sound production of the loudspeaker. According to the loudspeaker, low F0 can be obtained without adjusting compliance or weight, the production yield is high, the design of full-cavity powder filling of the loudspeaker box can be realized, the F0 of the loudspeaker box is greatly reduced, and the bass effect is more vigorous. The mesh enclosure is in hot melting connection with the frame, and the structural stability of the loudspeaker is better.

Description

Technical Field

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

[0002] The speaker includes a loudspeaker and a box with an opening. The loudspeaker is arranged at the opening. The loudspeaker and the inner surface of the box together form a back cavity. For the convenience of carrying, consumers often hope that the size of the Bluetooth speaker is relatively small. However, when the size of the speaker becomes smaller, the volume of the back cavity will also become smaller accordingly. When the volume of the back cavity becomes smaller, the F0 of the speaker will increase, resulting in poor bass effect.

[0003] To achieve good bass, traditional small-volume speakers often adjust the speaker's compliance or weight to achieve a low F0. However, blindly adjusting compliance and weight will reduce the speaker's production yield, undoubtedly increasing costs.

[0004] Setting sound-absorbing particles in the back cavity can enlarge the virtual back cavity, thereby making the speaker obtain a lower F0 and making the bass effect richer. However, the sound-absorbing particles sometimes enter the inside of the speaker and collide with the vibration components of the speaker to produce noise, affecting the acoustic performance of the speaker. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a loudspeaker with a new structure, which has a high production yield and can isolate sound-absorbing particles.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a speaker, comprising:

[0007] A basin frame, comprising a top ring frame, a mounting portion, and a plurality of inclined arms, wherein the top ring frame and the mounting portion are connected via the inclined arms, a ventilation window is formed between two adjacent inclined arms, and a heat-melting column is provided on the basin frame;

[0008] The mesh cover includes a frame and a breathable isolation net arranged on the frame, the breathable isolation net covers each of the breathable windows, the frame is provided with a hot melt hole groove that cooperates with the hot melt column, and the frame is hot-melt connected to the basin frame.

[0009] Furthermore, the heat-melting column is arranged on the top ring frame or the mounting portion.

[0010] Furthermore, the top ring frame and the mounting portion are respectively provided with the heat-melting columns.

[0011] Furthermore, the breathable isolation net is in a cone-shaped ring shape as a whole.

[0012] Furthermore, the breathable isolation net and the frame are an integral structure formed by integral injection molding.

[0013] Furthermore, the frame includes a lower fixing part, an upper fixing part and a plurality of connecting arms, the lower fixing part and the upper fixing part are connected to each other through the connecting arms, and a window is formed between two adjacent connecting arms for exposing the breathable isolation net, and the window corresponds to the breathable window.

[0014] Furthermore, the mounting portion is provided with a pressing groove for positioning the lower fixing portion, and the hot melt column is provided at the pressing groove.

[0015] Furthermore, the lower fixing portion has an inwardly protruding inner convex portion, and the hot melt hole groove is provided at the junction of the inward convex portion and the lower fixing portion.

[0016] Furthermore, the upper fixing portion has an outwardly protruding portion, and a hot melt hole groove is provided on the outwardly protruding portion.

[0017] Furthermore, the top ring frame has a boss arranged corresponding to the outer convex portion, the boss is in surface contact with the outer convex portion, and the hot melt column is provided on the boss.

[0018] The beneficial effects of the present invention are:

[0019] The speaker has a mesh cover that can isolate sound-absorbing particles, effectively preventing the sound-absorbing particles in the speaker box from invading the interior of the speaker and affecting the sound of the speaker.

[0020] The speaker does not need to adjust compliance or weight to obtain a low F0, has a high production yield, and is beneficial to controlling the manufacturing cost of the speaker.

[0021] When this speaker is used on a small speaker, it can realize the design of full-cavity powder filling of the speaker (the entire interior of the speaker is filled with sound-absorbing particles). When using speakers of the same performance, a larger virtual back cavity can be obtained, thereby greatly reducing the F0 of the speaker and making the bass effect more powerful.

[0022] The grille is connected to the frame by hot-melt connection, which improves the structural stability of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a loudspeaker according to Embodiment 1 of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the loudspeaker according to the first embodiment of the present invention;

[0025] Figure 3 This is a partial exploded view of the loudspeaker according to the first embodiment of the present invention.

[0026] Description of labels:

[0027] 1. Basin frame; 11. Top ring frame; 111. Boss; 12. Mounting portion; 121. Press groove; 13. Tilt arm; 14. Ventilation window; 15. Hot melt column;

[0028] 2. Mesh cover; 21. Frame; 211. Lower fixing portion; 212. Upper fixing portion; 213. Connecting arm; 214. Inner convex portion; 215. Outer convex portion; 22. Breathable isolation net; 23. Hot melt hole slot;

[0029] 3. Spring wave;

[0030] 4. Diaphragm assembly;

[0031] 5. Voice coil;

[0032] 6. Dust cap;

[0033] 7. Magnetic circuit components. DETAILED DESCRIPTION

[0034] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0035] Please refer to Figures 1 to 3 , a loudspeaker comprising:

[0036] The basin frame 1 includes a top ring frame 11, a mounting portion 12, and a plurality of inclined arms 13. The top ring frame 11 and the mounting portion 12 are connected by the inclined arms 13. A ventilation window 14 is formed between two adjacent inclined arms 13. The basin frame 1 is provided with a heat-melting column 15.

[0037] The mesh cover 2 includes a frame 21 and a breathable isolation net 22 arranged on the frame 21, the breathable isolation net 22 covers each of the breathable windows 14, and the frame 21 is provided with a hot melt hole groove 23 that cooperates with the hot melt column 15. The frame 21 is hot-melt connected to the basin frame 1.

[0038] From the above description, it can be seen that the beneficial effects of the present invention are: the present loudspeaker has a mesh cover 2, which can achieve isolation of sound-absorbing particles, and can effectively prevent the sound-absorbing particles in the speaker cabinet from invading the interior of the loudspeaker and affecting the sound of the loudspeaker. The present loudspeaker does not need to adjust compliance or weight to obtain a low F0, and has a high production yield, which is beneficial to the control of the manufacturing cost of the loudspeaker. The present loudspeaker is applied to a small speaker, and can realize the design of a full-cavity powder filling of the speaker (the entire interior of the speaker is filled with sound-absorbing particles). When using a loudspeaker of the same performance, a larger virtual back cavity can be obtained, thereby greatly reducing the F0 of the speaker and making the bass effect more powerful. The mesh cover 2 is hot-melt connected to the basin frame 1, and the structural stability of the speaker is better.

[0039] Furthermore, the heat-melting column 15 is provided on the top ring frame 11 or the mounting portion 12 .

[0040] As can be seen from the above description, the location of the heat-melting column 15 on the basin frame 1 can be selected as needed.

[0041] Furthermore, the top ring frame 11 and the mounting portion 12 are respectively provided with the heat-melting columns 15 .

[0042] As can be seen from the above description, the top ring frame 11 and the mounting portion 12 are respectively provided with heat-melting columns 15, which can form a more stable connection between the basin frame 1 and the frame 21, thereby improving the structural stability of the speaker.

[0043] Furthermore, the breathable isolation net 22 is in a cone-shaped ring shape as a whole.

[0044] As can be seen from the above description, the breathable isolation net 22 adopts an integral structure, which can facilitate the processing and manufacturing of the net cover 2.

[0045] Furthermore, the breathable isolation net 22 and the frame 21 are an integral structure formed by integral injection molding.

[0046] As can be seen from the above description, the grille 2 is easy to manufacture, which is beneficial to controlling the manufacturing cost of the loudspeaker.

[0047] Furthermore, the frame 21 includes a lower fixed part 211, an upper fixed part 212 and a plurality of connecting arms 213. The lower fixed part 211 is connected to the upper fixed part 212 through the connecting arms 213. A window is formed between two adjacent connecting arms 213 for exposing the breathable isolation net 22. The window corresponds to the breathable window 14.

[0048] As can be seen from the above description, the frame 21 has a simple structure and does not hinder the speaker from using the ventilation window 14 to exchange air.

[0049] Furthermore, a pressing groove 121 for positioning the lower fixing portion 211 is provided on the mounting portion 12 , and the heat-melting column 15 is provided at the pressing groove 121 .

[0050] It can be seen from the above description that the presence of the pressing groove 121 facilitates the positioning and installation of the mesh cover 2 .

[0051] Furthermore, the lower fixing portion 211 has an inwardly protruding inner portion 214 , and the hot melt hole groove 23 is provided at the junction of the inwardly protruding inner portion 214 and the lower fixing portion 211 .

[0052] It can be seen from the above description that the arrangement of the inner protrusion 214 allows the lower fixing portion 211 to have enough space for the hot melt hole 23 .

[0053] Furthermore, the upper fixing portion 212 has an outwardly protruding portion 215 , and a hot melt hole groove 23 is provided on the outwardly protruding portion 215 .

[0054] It can be seen from the above description that the provision of the outer protrusion 215 allows the upper fixing portion 212 to have enough space for disposing the hot melt hole groove 23 .

[0055] Furthermore, the top ring frame 11 has a boss 111 provided corresponding to the outer protrusion 215 , the boss 111 is in surface contact with the outer protrusion 215 , and the hot melt column 15 is provided on the boss 111 .

[0056] From the above description, it can be seen that the setting of the boss 111 can better support the outer protrusion 215. At the same time, the overall thickness of the top ring frame 11 does not need to be set too thick, which is beneficial to reducing the manufacturing consumables of the basin frame 1 and saving the manufacturing cost of the basin frame 1.

[0057] Example 1

[0058] Please refer to Figures 1 to 3 , embodiment 1 of the present invention is: a speaker that can be used in a sound box, the sound box includes a box body with an opening, the speaker is arranged at the opening, the inner surface of the box body and the speaker form a back cavity, and sound-absorbing particles are arranged in the back cavity.

[0059] The speaker includes a basin frame 1 and a mesh cover 2, the basin frame 1 includes a top ring frame 11, a mounting portion 12 and a plurality of inclined arms 13, the top ring frame 11 and the mounting portion 12 are connected through the inclined arms 13, and a ventilation window 14 is formed between two adjacent inclined arms 13, and a hot melt column 15 is provided on the basin frame 1; the mesh cover 2 includes a frame 21 and a breathable isolation net 22 provided on the frame 21, the breathable isolation net 22 covers each of the ventilation windows 14, and a hot melt hole groove 23 is provided on the frame 21 to cooperate with the hot melt column 15. The frame 21 and the basin frame 1 are hot-melt connected through the cooperation of the hot melt column 15 and the hot melt hole groove 23. The hot melt hole groove 23 can be either a through-hole structure or a notch structure.

[0060] It is easy to understand that the pore size of the breathable isolation net 22 is smaller than the particle size of the sound-absorbing particles.

[0061] The speaker also includes a damper 3, a diaphragm assembly 4, a voice coil 5, a dust cap 6 and a magnetic circuit assembly 7. The magnetic circuit assembly 7 is mounted on the mounting portion 12. The magnetic circuit assembly 7 has a magnetic gap for the voice coil 5 to move. The diaphragm assembly 4 connects the voice coil 5 and the top ring frame 11. The dust cap 6 is arranged on the diaphragm assembly 4. The dust cap 6 is arranged corresponding to the voice coil 5. The damper 3 connects the basin frame 1 and the voice coil 5.

[0062] To ensure the stability of the connection between the frame 21 and the basin frame 1, in this embodiment, the heat-seal posts 15 are respectively provided on the top ring frame 11 and the mounting portion 12. In other embodiments, the heat-seal posts 15 can be provided only on the top ring frame 11, or of course, the heat-seal posts 15 can also be provided only on the mounting portion 12.

[0063] The air-permeable isolation net 22 is in a cone-ring shape as a whole, which makes it easier to process and manufacture the net cover 2.

[0064] In order to facilitate processing and ensure the structural stability of the mesh cover 2, it is preferred that the breathable isolation net 22 and the frame 21 are an integral structure formed by integral injection molding; in this embodiment, the breathable isolation net 22 is a metal net, and the breathable isolation net 22 and the frame 21 are an integral structure formed by insert injection molding.

[0065] The frame 21 includes a lower fixing part 211, an upper fixing part 212 and a plurality of connecting arms 213. The lower fixing part 211 is connected to the upper fixing part 212 via the connecting arms 213. A window is formed between two adjacent connecting arms 213 for exposing the breathable isolation net 22. The window corresponds to the breathable window 14.

[0066] Optionally, the mounting portion 12 is provided with a pressing groove 121 for positioning the lower fixing portion 211, and the hot melt column 15 is provided at the pressing groove 121. In this embodiment, the lower fixing portion 211 has an inwardly protruding inner convex portion 214, and the hot melt hole groove 23 is provided at the junction of the inner convex portion 214 and the lower fixing portion 211. The upper fixing portion 212 has an outwardly protruding outer convex portion 215, and the hot melt hole groove 23 is provided on the outer convex portion 215.

[0067] In some embodiments, the top ring frame 11 has a boss 111 corresponding to the outer protrusion 215 , the boss 111 is in surface contact with the outer protrusion 215 , and the hot melt column 15 is provided on the boss 111 .

[0068] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: include A basin frame, comprising a top ring frame, a mounting portion, and a plurality of inclined arms, wherein the top ring frame and the mounting portion are connected via the inclined arms, a ventilation window is formed between two adjacent inclined arms, and a heat-melting column is provided on the basin frame; The mesh cover includes a frame and a breathable isolation net arranged on the frame, the breathable isolation net covers each of the breathable windows, the frame is provided with a hot melt hole groove that cooperates with the hot melt column, and the frame is hot-melt connected to the basin frame.

2. The loudspeaker according to claim 1, wherein The thermal melt column is arranged on the top ring frame or the mounting portion.

3. The loudspeaker according to claim 1, wherein The top ring frame and the mounting portion are respectively provided with the heat-melting columns.

4. The loudspeaker according to claim 1, wherein The breathable isolation net is in a cone ring shape as a whole.

5. The loudspeaker according to claim 1, wherein The breathable isolation net and the frame are an integral structure formed by integral injection molding.

6. The loudspeaker according to claim 1, wherein The frame includes a lower fixing part, an upper fixing part and a plurality of connecting arms. The lower fixing part is connected to the upper fixing part through the connecting arms. A window is formed between two adjacent connecting arms for exposing the breathable isolation net. The window corresponds to the breathable window.

7. The loudspeaker according to claim 6, characterized in that The mounting portion is provided with a pressing groove for positioning the lower fixing portion, and the hot melt column is provided at the pressing groove.

8. The loudspeaker according to claim 7, characterized in that The lower fixing portion has an inner convex portion protruding inward, and the hot melt hole groove is provided at the junction of the inner convex portion and the lower fixing portion.

9. The loudspeaker according to claim 6, wherein The upper fixing portion has an outwardly protruding portion, and a hot melt hole groove is provided on the outwardly protruding portion.

10. The loudspeaker according to claim 9, characterized in that The top ring frame has a boss arranged corresponding to the outer convex portion, the boss is in surface contact with the outer convex portion, and the hot melt column is arranged on the boss.

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