Loudspeaker with multiple voice coils

Abstract

The utility model provides a multi-voice coil loudspeaker, which is applied to the technical field of loudspeakers. According to the multi-voice-coil loudspeaker, a connecting groove is formed in the outer peripheral face of a voice coil connector, the connecting groove is connected with a voice coil, a fixing ring is arranged on the outer wall of the voice coil connector, the voice coil connector is installed on the front face of a voice coil connecting base, the connecting groove is formed in the outer peripheral face of the voice coil connector, and a protruding part is arranged on an inner ring of the voice coil. The protruding part is in sliding connection with the connecting groove, then the voice coil connector is in sliding connection with the voice coil, the outer wall of the voice coil connector is further detachably connected with the fixing ring, when the voice coil breaks down, the fixing ring is detached, the broken-down voice coil can be taken out and maintained or replaced, the broken-down voice coil can be replaced or maintained, and the voice coil connector is convenient to use. And the whole loudspeaker is prevented from being replaced when the voice coil fails. In this way, the cost of maintaining and repairing the loudspeaker by a user can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of loudspeakers, in particular to a multi - voice - coil loudspeaker. Background Art

[0002] A multi - voice - coil loudspeaker is a special loudspeaker. Different from traditional single - voice - coil loudspeakers, it has multiple independent driving units inside, and each unit is connected to an audio signal distributor. A multi - voice - coil loudspeaker can generate complex audio signals by separately controlling the movement of each voice coil. Therefore, higher audio resolution and more realistic sound effects can be obtained. In a multi - voice - coil loudspeaker, each voice coil can receive an audio signal separately and use an independent magnetic field to control vibration to generate specific sound components. By mixing the outputs of multiple voice coils together, a richer audio signal can be generated, and the output of each voice coil can be regarded as a specific spectrum and phase response designed by engineers.

[0003] Currently, in the prior art, the voice coils of a multi - voice - coil loudspeaker are usually connected to the voice - coil connector by welding the voice coil to the voice - coil connector or by installing multiple voice coils on the voice - coil connector with bolts. These two connection methods can firmly connect multiple voice coils to the voice - coil connector. However, when a certain voice coil fails and is damaged, the voice coil cannot be removed and replaced with a new one, and only the whole loudspeaker can be replaced, which will cause waste of users' funds. Therefore, there is an urgent need for a multi - voice - coil loudspeaker. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi - voice - coil loudspeaker in order to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A multi - voice - coil loudspeaker, comprising: a loudspeaker box body and a box cover detachably installed on the front surface thereof. In the middle of the inner wall of the back surface of the loudspeaker box body, a connection bracket is fixedly connected. On the front surface of the connection bracket, a connection plate is provided. On the front surface of the connection plate, a voice - coil connector is provided. In the middle of the front surface of the voice - coil connector, a columnar voice - coil connector is provided. On the outer peripheral surface of the voice - coil connector, a connection groove is provided. The connection groove is connected with a voice coil. On the outer wall of the voice - coil connector, a fixing ring is provided. On the bottom surface of the fixing ring, a buffer pad is provided. On the front surface of the voice - coil connector, a chassis is provided. On the top end of the inner wall of the chassis, a chassis cap is detachably installed.

[0007] Further: The back surface of the connection plate is welded to the front surface of the connection bracket, and the bottom surface of the connection plate is welded to the front surface of the voice - coil connector, and the voice - coil connector is located in the middle of the front surface of the connection plate

[0008] Further: The middle part of the front surface of the voice coil connection base is fixedly connected to the bottom surface of the voice coil connector. Four connection grooves are arranged in a circumferential array on the outer peripheral surface of the voice coil connector. Four protruding parts are arranged in a circumferential array on the inner ring of the voice coil, and the protruding parts are slidably connected to the connection grooves. The voice coil is slidably connected to the voice coil connector through the protruding parts.

[0009] Further: Threads are provided on the outer peripheral surface of the voice coil connector. The fixing ring is detachably connected to the voice coil connector through the threads. A cylindrical knob handle made of rubber is fixedly installed on the top surface of the fixing ring.

[0010] Further: The bottom surface of the fixing ring is fixedly connected to the middle part of the front surface of the buffer pad. The buffer pad is annular, and the inner ring diameter is the same as the diameter of the voice coil connector. The bottom surface of the buffer pad is completely attached to the top surface of the voice coil. Multiple voice coils are provided, and the bottom surface of one voice coil is completely attached to the top surface of another voice coil.

[0011] Further: The front surface of the voice coil connection base is detachably installed on the bottom surface of the speaker frame through bolts. Threads are provided at the top end of the inner wall of the speaker frame. The speaker cap is detachably installed on the top end of the inner wall of the speaker frame through the threads.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By installing a voice coil connector on the front surface of the voice coil connection base, connection grooves are provided on the outer peripheral surface of the voice coil connector, protruding parts are provided on the inner ring of the voice coil, and the protruding parts are slidably connected to the connection grooves, so that the voice coil connector is slidably connected to the voice coil. A fixing ring is also detachably connected to the outer wall of the voice coil connector. When a fault occurs in the voice coil, the fixing ring can be disassembled to remove the faulty voice coil, and the faulty voice coil can be maintained or replaced, realizing the replacement or maintenance of the faulty voice coil, avoiding the need to replace the entire speaker when the voice coil fails, reducing the cost of the user to maintain and repair the speaker, and at the same time, through the sliding connection between the protruding parts and the connection grooves, the voice coil is limited by the connection grooves to prevent it from rotating randomly on the outer wall of the voice coil connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 Shows a schematic structural diagram of a multi-voice coil speaker body according to the present utility model;

[0015] Figure 2 Shows a schematic side cross-sectional structural diagram of a multi-voice coil speaker according to the present utility model;

[0016] Figure 3 Shows the partial enlarged view of part A of a multi - voice - coil loudspeaker according to the present utility model; Figure 2 in the figure;

[0017] Figure 4 Shows the three - dimensional structure diagram of a multi - voice - coil loudspeaker according to the present utility model without the loudspeaker cabinet and the cabinet cover;

[0018] Figure 5 Shows the side - view sectional view of the three - dimensional structure of a multi - voice - coil loudspeaker according to the present utility model without the loudspeaker cabinet and the cabinet cover;

[0019] Figure 6 Shows the partial enlarged view of part B of a multi - voice - coil loudspeaker according to the present utility model; Figure 5 in the figure;

[0020] The description of the reference numerals is as follows:

[0021] 1, loudspeaker cabinet; 2, cabinet cover; 3, connecting bracket; 4, connecting plate; 5, voice - coil connecting seat; 6, voice - coil connector; 7, voice coil; 8, fixing ring; 9, buffer pad; 10, chassis; 11, dust cap; 601, connecting groove. Detailed implementation manners

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The present utility model will be further described below with reference to the accompanying drawings:

[0025] As Figures 1 - 6 shown, a multi-voice coil loudspeaker includes: a loudspeaker cabinet 1 and a cabinet cover 2 detachably installed on its front surface. By detachably installing the cabinet cover 2 on the front surface of the loudspeaker cabinet 1, when a fault occurs in the loudspeaker, the cabinet cover 2 can be removed to expose the loudspeaker inside the loudspeaker cabinet 1, which is convenient for repairing the loudspeaker. In the middle of the inner wall of the back surface of the loudspeaker cabinet 1, a connection bracket 3 is fixedly connected. A connecting plate 4 is arranged on the front surface of the connection bracket 3, and the connecting plate 4 is welded to the front surface of the connection bracket 3. In the middle of the front surface of the connecting plate 4, a voice coil connection seat 5 is arranged, and the bottom surface of the voice coil connection seat 5 is welded to the middle of the front surface of the connecting plate 4. In the middle of the front surface of the voice coil connection seat 5, there is a cylindrical voice coil connector 6, and the bottom surface of the voice coil connector 6 is fixedly connected to the middle of the front surface of the voice coil connection seat 5. A connection groove 601 is arranged on the outer peripheral surface of the voice coil connector 6. The connection grooves 601 are arranged in a circumferential array on the outer peripheral surface of the voice coil connector 6. There are four connection grooves 601. The voice coil 7 is connected to the connection groove 601. Among them, four protruding parts are arranged in a circumferential array on the inner ring of the voice coil 7, and the protruding parts are slidably connected to the connection groove 601. The voice coil 7 is slidably connected to the voice coil connector 6 through the protruding parts. The outer peripheral surface of the voice coil connector 6 is provided with threads, and a fixing ring 8 is further arranged on its outer wall. The fixing ring 8 is detachably connected to the voice coil connector 6 through the threads, and a cylindrical knob handle made of rubber material is fixedly installed on the top surface of the fixing ring 8. The fixing ring 8 can be driven to rotate and displace on the outer peripheral surface of the voice coil connector 6 through the knob handle. A buffer pad 9 is arranged on the bottom surface of the fixing ring 8. The front surface of the buffer pad 9 is fixedly connected to the bottom surface of the fixing ring 8. The buffer pad 9 is annular, and the inner diameter of its inner ring is the same as the diameter of the voice coil connector 6. When the fixing ring 8 is connected to the voice coil connector 6, the bottom surface of the buffer pad 9 is completely attached to the top surface of the voice coil 7. The buffer pad 9 is used to prevent the fixing ring 8 from directly contacting the voice coil 7 and avoid the bottom surface of the fixing ring 8 from wearing the outer wall of the voice coil 7. And multiple voice coils 7 can be arranged, and the bottom surface of one voice coil 7 is completely attached to the top surface of another voice coil 7.

[0026] In addition, a speaker frame 10 is provided on the front surface of the voice coil connection base 5. The bottom surface of the speaker frame 10 is detachably mounted on the front surface of the voice coil connection base 5 through bolts. And an internal thread is provided at the top end of the inner wall of the speaker frame 10. The voice coil cap 11 is detachably mounted on the top end of the inner wall of the speaker frame 10 through the thread. By detachably mounting the voice coil cap 11 and the speaker frame 10, when the voice coil 7 fails, the voice coil cap 11 and the speaker frame 10 can be disassembled to expose the voice coil 7 inside, and the voice coil 7 can be maintained or replaced.

[0027] By mounting a voice coil connector 6 on the front surface of the voice coil connection base 5, a connection groove 601 is provided on the outer peripheral surface of the voice coil connector 6. A protruding portion is provided on the inner ring of the voice coil 7. The protruding portion is slidably connected to the connection groove 601. Thus, the voice coil connector 6 is slidably connected to the voice coil 7. A fixing ring 8 is also detachably connected to the outer wall of the voice coil connector 6. When the voice coil 7 fails, the fixing ring 8 can be disassembled to remove the faulty voice coil 7, and the faulty voice coil 7 can be maintained or replaced, realizing that the faulty voice coil 7 can be replaced or maintained, avoiding the need to replace the entire speaker when the voice coil fails, reducing the cost for the user to maintain and repair the speaker. At the same time, by the sliding connection between the protruding portion and the connection groove 601, the voice coil is limited by the connection groove 601 to prevent it from rotating randomly on the outer wall of the voice coil connector 6.

[0028] Working principle: During use, connect the voice coil 7 and the voice coil connector 6, and the number of voice coils 7 is the same as the actual required number. After the voice coil 7 is connected, thread the fixing ring 8 onto the voice coil connector 6 and rotate the fixing ring 8 until the buffer pad 9 mounted on its bottom surface is completely attached to the voice coil 7. After mounting the voice coil cap 11 and the speaker frame 10, and then mounting the cabinet cover 2 on the front surface of the speaker cabinet 1, the multi-voice coil speaker can be used. When a certain voice coil 7 fails, disassemble the cabinet cover 2, the voice coil cap 11 and the fixing ring 8 respectively, and replace or repair the corresponding voice coil 7.

[0029] The speaker cabinet 1, the voice coil 7, the voice coil cap 11 and the speaker frame 10 are all common standard parts or known through conventional experimental methods, so no more description will be given here.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A multi-voice coil loudspeaker, comprising: A loudspeaker box (1) and a box cover (2) detachably mounted on the front thereof, characterized in that a connecting bracket (3) is fixedly connected to the middle end of the inner wall on the back of the loudspeaker box (1), a connecting plate (4) is arranged on the front of the connecting bracket (3), a voice coil connecting seat (5) is arranged on the front of the connecting plate (4), a columnar voice coil connector (6) is arranged on the middle end of the front of the voice coil connecting seat (5), a connecting groove (601) is arranged on the outer peripheral surface of the voice coil connector (6), a voice coil (7) is connected to the connecting groove (601), a fixing ring (8) is arranged on the outer wall of the voice coil connector (6), a buffer pad (9) is arranged on the bottom surface of the fixing ring (8), a basin frame (10) is arranged on the front of the voice coil connecting seat (5), and a basin cap (11) is detachably mounted on the top of the inner wall of the basin frame (10).

2. The multi-voice coil loudspeaker according to claim 1, characterized in that: The back side of the connecting plate (4) is welded to the front side of the connecting bracket (3), the front side of the connecting plate (4) is welded to the bottom side of the voice coil connecting seat (5), and the voice coil connecting seat (5) is located at the middle end of the front side of the connecting plate (4).

3. The multi-voice coil loudspeaker according to claim 2, characterized in that: The middle end of the front face of the voice coil connection seat (5) is fixedly connected to the bottom face of the voice coil connector (6); the outer circumferential surface of the voice coil connector (6) is provided with four connection grooves (601) in a circumferential array; the inner ring of the voice coil (7) is provided with four protrusions in a circumferential array, and the protrusions are slidably connected to the connection grooves (601); the voice coil (7) is slidably connected to the voice coil connector (6) via the protrusions.

4. The multi-voice coil loudspeaker according to claim 3, characterized in that: The outer peripheral surface of the voice coil connector (6) is provided with threads, and the fixing ring (8) is detachably connected to the voice coil connector (6) via the threads. A cylindrical knob handle made of rubber material is fixedly mounted on the top surface of the fixing ring (8).

5. The multi-voice coil loudspeaker according to claim 4, characterized in that: The bottom surface of the fixing ring (8) is fixedly connected to the middle end of the front side of the buffer pad (9), and the buffer pad (9) is annular, and the inner ring diameter is consistent with the diameter of the voice coil connector (6), the bottom surface of the buffer pad (9) is completely in contact with the top surface of the voice coil (7), and a plurality of voice coils (7) are provided, and the bottom surface of the voice coil (7) is completely in contact with the top surface of another voice coil (7).

6. The multi-voice coil loudspeaker according to claim 1, characterized in that: The front side of the voice coil connection seat (5) is detachably mounted on the bottom side of the basin frame (10) via bolts, the top of the inner wall of the basin frame (10) is provided with threads, and the basin cap (11) is detachably mounted on the top of the inner wall of the basin frame (10) via threads.

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