Coaxial loudspeaker and its cone module

Abstract

This utility model discloses a coaxial loudspeaker and its cone module. The cone module of the coaxial loudspeaker includes a mid-bass cone and a tweeter cone arranged coaxially, with the mid-bass cone surrounding the tweeter cone. The cone module also includes an elastic connecting ring, which is elastically deformable and has an outer edge and an inner edge. The outer edge is connected to the mid-bass cone, and the inner edge is connected to the tweeter cone. This utility model provides a coaxial loudspeaker cone module that facilitates a compact structure and easy assembly of the coaxial loudspeaker.

Description

Technical Field

[0001] This utility model belongs to the field of coaxial loudspeakers, specifically relating to a coaxial loudspeaker and its cone module. Background Technology

[0002] A coaxial speaker has a mid-bass driver and a tweeter on the same axis, responsible for reproducing high and mid-bass frequencies respectively. Its advantages include significantly increased bandwidth per speaker, easy installation (eliminating the need for a separate tweeter), and widespread use in car audio systems.

[0003] For example, patent CN208258066U discloses a coaxial loudspeaker, which includes a woofer and a tweeter coaxially arranged. The woofer includes a T-iron, a diaphragm, and a voice coil connected to the diaphragm. A housing is fixedly mounted on the T-iron, with the lower part of the housing passing through the voice coil to connect with the T-iron. The top part of the housing is located above the diaphragm, and the tweeter is located on the top part of the housing. The tweeter also includes a diaphragm and a magnetic circuit. In order to improve dust and water resistance, a dustproof ring is also set between the housing and the woofer. All of these factors contribute to the complexity of the overall structure of the coaxial loudspeaker and make assembly inconvenient.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a cone module for a coaxial loudspeaker, which facilitates a compact structure and convenient assembly of the coaxial loudspeaker. The present invention also provides a coaxial loudspeaker using this cone module, which has a simple structure and is easy to assemble.

[0006] The present invention adopts the following technical solution:

[0007] A cone module for a coaxial loudspeaker includes a mid-bass cone and a tweeter cone arranged coaxially, the mid-bass cone surrounding the tweeter cone; the cone module also includes an elastic connecting ring, the elastic connecting ring being elastically deformable and having an outer edge and an inner edge, the outer edge being connected to the mid-bass cone, and the inner edge being connected to the tweeter cone.

[0008] In a preferred embodiment, the elastic connecting ring has an annular protrusion that rises toward the front of the cone module or an annular recess that is recessed toward the back of the cone module.

[0009] In a more preferred embodiment, the elastic connecting ring has at least one annular protrusion and at least one annular recess between its outer and inner edges.

[0010] In a preferred embodiment, the outer edge of the elastic connecting ring is planar, and the planar connecting edge of the mid-bass cone is attached to and connected to the upper or lower surface of the outer edge.

[0011] In a preferred embodiment, the inner edge of the elastic connecting ring is tapered, and the edge of the tweeter cone and the inner edge of the elastic connecting ring are attached to and connected to the upper or lower surface of the inner edge.

[0012] In a preferred embodiment, the mid-bass cone has an open top and a bottom, the diameter of the top being larger than the diameter of the bottom; the bottom is connected to the tweeter cone via the elastic connecting ring, and the top is connected to an elastic suspension ring.

[0013] In a preferred embodiment, the elastic connecting ring is made of rubber.

[0014] In a more preferred embodiment, the material of the overhang is rubber.

[0015] In a more preferred embodiment, the tweeter cone has a voice coil groove in the middle for connecting the tweeter voice coil.

[0016] In a further preferred embodiment, the tweeter cone includes a first portion located outside the voice coil groove and a second portion located inside the voice coil groove. The first portion is generally truncated conical in shape, and the diameter of the bottom end of the first portion is larger than the diameter of its top end. The bottom end of the first portion is connected to the elastic connecting ring. The voice coil groove is located at the top end of the first portion. The second portion is higher than the bottom end of the first portion and lower than the top end of the mid-bass voice coil.

[0017] This utility model also adopts the following technical solution:

[0018] A coaxial loudspeaker includes the aforementioned cone module, wherein the mid-bass cone and mid-bass voice coil are connected, and the tweeter cone and tweeter voice coil are connected.

[0019] The present invention adopts the above solution and has the following advantages:

[0020] The cone module of this utility model integrates the mid-bass cone and the high-frequency cone into one unit through an elastic connecting ring. It can be responsible for the sound reproduction of the mid-bass and high-frequency ranges respectively. It is suitable for coaxial speakers and helps to make the structure of the coaxial speaker compact and easy to assemble. For example, the mid-bass and high-frequency sound units can share a magnetic circuit, without the need for additional housings or separate bonding of the mid-bass and high-frequency cones. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a cone module according to an embodiment of the present utility model.

[0023] Figure 2 This is another perspective view of a cone module according to an embodiment of the present utility model.

[0024] Figure 3 This is a front view of a cone module according to an embodiment of the present utility model.

[0025] Figure 4 This is a top view of a cone module according to an embodiment of the present utility model.

[0026] Figure 5 for Figure 4 Sectional view along the AA direction.

[0027] Figure 6 for Figure 5 A magnified view of a section at point B.

[0028] Figure 7 This is a perspective view of a coaxial loudspeaker according to an embodiment of the present invention.

[0029] Figure 8 This is a top view of a coaxial loudspeaker according to an embodiment of the present invention.

[0030] Figure 9 for Figure 8 A cross-sectional view along the CC direction.

[0031] in:

[0032] 100. Coaxial speaker;

[0033] 1. Cone module; 11. Mid-bass cone; 111. Top; 112. Bottom; 12. Tweeter cone; 120. Voice coil groove; 121. First part; 122. Second part; 13. Flexible connecting ring; 131. Outer edge; 132. Inner edge; 133. Annular protrusion; 134. Annular recess; 14. Suspension edge;

[0034] 2. Bracket;

[0035] 3. Mid-to-low frequency voice coil;

[0036] 4. High-frequency voice coil;

[0037] 5. Magnetic circuit;

[0038] 61. First wave; 62. Second wave. Detailed Implementation

[0039] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof.

[0040] In this document, the terms “upper,” “lower,” “front,” “rear,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] The embodiment relates to a cone module 1, suitable for coaxial loudspeakers, such as... Figures 1 to 6 As shown. The embodiment also relates to a coaxial loudspeaker 100 employing the cone module 1, as... Figures 7 to 9 As shown.

[0042] Reference Figures 1 to 6 As shown, the cone module 1 of the coaxial loudspeaker 100 includes a mid-bass cone 11 and a tweeter cone 12 arranged coaxially. The mid-bass cone 11 surrounds the tweeter cone 12, and the tweeter cone 12 is surrounded by the mid-bass cone 11. The mid-bass cone 11 is responsible for reproducing sound in the mid-low frequency range, and the tweeter cone 12 is responsible for reproducing sound in the high frequency range.

[0043] The mid-bass cone 11 is generally truncated conical in shape. The mid-bass cone 11 has a relatively open top end 111 and a bottom end 112, with the diameter of the top end 111 being larger than the diameter of the bottom end 112, thus possessing a truncated conical structure that is larger at the top and smaller at the bottom. Figure 4 As shown in the top-down view, the mid-bass cone 11 is circular in shape. The material of the mid-bass cone 11 can be paper, fabric, polymer materials (such as polypropylene), etc.

[0044] The tweeter cone 12 has a voice coil groove 120 in its center for connecting the tweeter voice coil. Further, the tweeter cone 12 includes a first portion 121 located outside the voice coil groove 120 and a second portion 122 located inside the voice coil groove 120. The first portion 121 has a truncated conical shape, wider at the bottom than the top, with the diameter of the bottom end larger than the diameter of the top end. The voice coil groove 120 is located at the top end of the first portion 121, and the second portion 122 is higher than the bottom end of the first portion 121 and lower than the top end of the mid-bass voice coil. In the example shown in the attached figures, the middle portion of the second portion 122 is recessed downwards relative to the top end of the first portion 121. Figure 4 From the top-down view shown, the first part 121 is annular in shape, and the second part 122 is circular in shape. The cone module 1 as a whole does not have a central hole, so a dust cap is not required, and it is not necessary to attach a dust cap to the cone module 1. The materials for the mid-bass cone 11 and the tweeter cone 12 can be paper, fabric, polymer materials (such as polypropylene), etc.

[0045] The cone module 1 also includes an elastic connecting ring 13. The elastic connecting ring 13 is elastically deformable and has an outer edge 131 and an inner edge 132. The outer edge 131 is connected to the mid-bass cone 11, and the inner edge 132 is connected to the tweeter cone 12. The elastic connecting ring 13 is made of rubber. While connecting the mid-bass cone 11 and the tweeter cone 12, it also allows relative displacement between the two cones, enabling the mid-bass cone 11 and the tweeter cone 12 to vibrate independently. The bottom end 112 of the mid-bass cone 11 is connected to the tweeter cone 12 via the elastic connecting ring 13, and the top end 111 is connected to an elastic suspension 14. This suspension 14 can be made of rubber.

[0046] like Figure 6 As shown, the elastic connecting ring 13 has an annular protrusion 133 rising towards the front of the cone module 1 or an annular recess 134 concave towards the back of the cone module 1. At least one annular protrusion 133 and at least one annular recess 134 are also present between the outer edge and inner edge of the elastic connecting ring 13. The annular protrusion 133 and the annular recess 134 are concentrically arranged. The outer edge 131 of the elastic connecting ring 13 is planar, and the planar connecting edge of the mid-bass cone 11 is attached to and connected to the outer edge 131 of the elastic connecting ring 13 on its upper or lower surface. The inner edge 132 of the elastic connecting ring 13 is tapered, and the edge of the tweeter 12 (specifically the bottom end of the first part 121) is attached to and connected to the inner edge 132 of the elastic connecting ring 13 on its upper or lower surface.

[0047] Reference Figures 7 to 9 As shown, the coaxial loudspeaker 100 includes Figures 1 to 6The cone module 1 has a mid-bass cone 11 connected to a mid-bass voice coil 3, and a tweeter cone 12 connected to a tweeter voice coil 4, specifically connected in the voice coil slot 120 of the tweeter cone 12. The mid-bass voice coil 3 and the tweeter voice coil 4 are coaxially arranged, with the tweeter voice coil 4 located inside the mid-bass voice coil 3. The suspension edge 14 of the cone module 1 is fixed to the upper end of the bracket 2, and a magnetic circuit 5 is fixed to the lower end of the bracket 2. The mid-bass voice coil 3 and the tweeter voice coil 4 are each inserted into two magnetic gaps in the magnetic circuit 5 to provide a magnetic field. A first spring 61 is fitted on the mid-bass voice coil 3, and the first spring 61 is fixedly connected between the mid-bass voice coil 3 and the bracket 2 to prevent the mid-bass voice coil 3 from shaking in a direction other than the expected direction (vertical direction). A second spring coil 62 is fitted onto the tweeter voice coil 4. The second spring coil 62 is fixedly connected between the tweeter voice coil 4 and the magnetic circuit 5 to prevent the tweeter voice coil 4 from shaking in any direction other than the intended vertical direction. The outer edge of the second spring coil 62 is specifically fixed to the upper surface of the magnetic circuit 5, such as the upper surface of the front plate. The lead wire of the tweeter voice coil 4 passes through the through hole on the mid-bass voice coil 3 and extends to the bracket 2. The lead wire of the mid-bass voice coil 3 also extends to the bracket 2.

[0048] The cone module 1 of the embodiment integrates the mid-bass cone 11 and the tweeter cone 12 into one unit through the elastic connecting ring 13. It can be responsible for the sound reproduction of the mid-bass and high frequency bands respectively. It is suitable for coaxial speaker 100 and helps to make the structure of coaxial speaker 100 compact and easy to assemble. For example, the mid-bass sound unit and the tweeter sound unit can share a magnetic circuit, without the need to set up an additional housing, and without the need to separately glue the mid-bass cone 11 and the tweeter cone 12.

[0049] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0050] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar.

[0051] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature.

[0052] The above embodiments are only for illustrating the technical concept and features of this utility model, and are preferred embodiments. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and should not be construed as limiting the protection scope of this utility model. All equivalent transformations or modifications made based on the principles of this utility model should be covered within the protection scope of this utility model.

Claims

1. A cone module of a coaxial loudspeaker, characterized by The device includes a coaxially arranged mid-bass cone and a tweeter cone, with the mid-bass cone surrounding the tweeter cone. The cone module also includes an elastic connecting ring, which is elastically deformable and has an outer edge and an inner edge. The outer edge is connected to the mid-bass cone, and the inner edge is connected to the tweeter cone.

2. The cone module of claim 1, wherein, The elastic connecting ring has an annular protrusion that rises towards the front of the diaphragm module or an annular recess that is recessed towards the back of the diaphragm module.

3. The cone module of claim 2, wherein, The elastic connecting ring has at least one annular protrusion and at least one annular recess between its outer and inner edges.

4. The cone module according to any one of claims 1 to 3, characterized in that, The outer edge of the elastic connecting ring is planar, and the planar connecting edge of the mid-bass cone is attached to and connected to the upper or lower surface of the outer edge.

5. The cone module according to any one of claims 1 to 3, characterized in that, The inner edge of the elastic connecting ring is tapered, and the edge of the tweeter cone and the inner edge of the elastic connecting ring are attached to and connected to the upper or lower surface of the inner edge.

6. The cone module according to claim 1, characterized in that, The mid-bass cone has an open top and a bottom, the diameter of the top being larger than the diameter of the bottom; the bottom is connected to the tweeter cone via the elastic connecting ring, and the top is connected to an elastic suspension ring.

7. The cone module according to claim 6, characterized in that, The elastic connecting ring is made of rubber, and the suspension edge is made of rubber.

8. The cone module according to claim 6, characterized in that, The tweeter cone has a voice coil groove in the middle for connecting the tweeter voice coil.

9. The cone module according to claim 8, characterized in that, The tweeter cone includes a first part located outside the voice coil groove and a second part located inside the voice coil groove. The first part is generally truncated cone-shaped, and the diameter of the bottom end of the first part is larger than the diameter of its top end. The bottom end of the first part is connected to the elastic connecting ring. The voice coil groove is located at the top end of the first part. The second part is higher than the bottom end of the first part and lower than the top end of the mid-bass cone.

10. A coaxial loudspeaker, characterized in that, Includes the cone module as described in any one of claims 1 to 9, wherein the mid-bass cone and the mid-bass voice coil are connected, and the tweeter cone and the tweeter voice coil are connected.

Images