A loudspeaker and its reflection cone

Abstract

The present invention relates to a loudspeaker and its reflection cone. The reflection cone has a concave side and a convex side. The concave side of the reflection cone is used to accommodate and install the magnetic circuit mechanism of the loudspeaker, and the convex side of the reflection cone is used to install the vibration mechanism of the loudspeaker. A channel is provided in the middle of the reflection cone for the voice coil of the vibration mechanism of the loudspeaker to pass through. Through the above structural design of the reflection cone, while having the function of the reflection cone, it can also serve as a support frame for the loudspeaker, providing installation positions and support for the vibration mechanism, magnetic circuit mechanism, etc. of the loudspeaker, so that the loudspeaker no longer needs to be provided with an additional support structure. The reflection cone with the above structure can be integrated with the loudspeaker structure into a whole, effectively reducing the height of the loudspeaker using the reflection cone, facilitating the miniaturization and ultra-thinning of electronic devices, and enabling the center of the speaker to be lower and more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of speakers, and particularly to a speaker and a reflection cone thereof. Background Art

[0002] Currently, the form of speakers is becoming more and more miniaturized and ultrathin, and 360-degree sound effects are pursued in terms of sound quality. In particular, smart speakers have become the mainstream products in the current speaker market. In order to collect signals by the MIC of smart speakers and avoid interference between the signals of the main body speaker and the MIC matrix, generally, the position of the speaker is designed at the bottom of the speaker box, so that the speaker is far away from the MIC matrix. Since the speaker is installed at the bottom of the speaker box facing the desktop, it will deteriorate the sound quality. In order to improve this shortcoming, a reflection cone design is usually added.

[0003] In the prior art, the reflection cone is provided as an independent component outside the speaker. This structure results in a relatively large height of the speaker with a reflection cone, which will occupy a relatively large volume of the inner cavity of the speaker box, and thus affects the miniaturization and ultrathinness of the speaker box. Summary of the Invention

[0004] The first object of the present invention is to provide a reflection cone, so that it can be integrated with the speaker as a whole, thereby reducing the height of the speaker with a reflection cone and facilitating the miniaturization and ultrathin design of the electronic device with this speaker.

[0005] The second object of the present invention is to provide a speaker based on the above reflection cone.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A reflection cone, the reflection cone has a concave side and a convex side. The concave side of the reflection cone is used to accommodate and install the magnetic circuit mechanism of the speaker, the convex side of the reflection cone is used to install the vibration mechanism of the speaker, and a channel for the voice coil of the vibration mechanism of the speaker to pass through is provided in the middle of the reflection cone.

[0008] Preferably, a plurality of sound radiation windows penetrating the reflection cone are circumferentially provided on the outer edge of the reflection cone.

[0009] Preferably, the reflection cone includes a cone body and a ring plate disposed on the periphery of the convex side of the cone body. The sound radiation window is provided on the ring plate and / or the cone body.

[0010] Preferably, a smooth transition connection is provided between the inner side wall of the ring plate and the surface of the convex side of the cone body.

[0011] Preferably, the conical surfaces of the convex side and the concave side of the cone body are both increasing in curvature from the edge to the middle.

[0012] A loudspeaker, comprising a vibration mechanism, a magnetic circuit mechanism, and a reflection cone as described in any one of the above, wherein the vibration mechanism and the magnetic circuit mechanism are respectively connected to the reflection cone in a mating manner, and the magnetic circuit mechanism is disposed on the concave side of the reflection cone, and the vibration mechanism is disposed on the convex side of the reflection cone, and the voice coil of the vibration mechanism passes through the reflection cone and extends into the magnetic gap detected by the magnetic circuit.

[0013] Preferably, an absorption damping annular pad surrounding the voice coil of the vibration mechanism is disposed in the channel of the reflection cone through which the voice coil of the vibration mechanism passes.

[0014] Preferably, a filter screen is disposed on the absorption damping annular pad and the end surface of the reflection cone facing the vibration mechanism.

[0015] Preferably, the magnetic circuit mechanism includes a U-shaped iron, a magnet, and a washer. The magnet is disposed on the inner bottom wall of the U-shaped iron, the washer is disposed on the magnet, and a magnetic gap is formed between the magnet and the washer and the side wall of the U-shaped iron. The reflection cone is connected to the side wall of the U-shaped iron in a mating manner.

[0016] Preferably, the vibration mechanism further includes an outer surround, a diaphragm, and an inner surround of the voice coil. A through hole for mating connection with the voice coil is disposed in the middle of the diaphragm. The outer peripheral edge of the diaphragm is connected to the outer surround and is connected to the reflection cone through the outer surround. The inner surround of the voice coil is disposed inside the voice coil.

[0017] Preferably, a support mechanism is disposed between the vibration mechanism and the magnetic circuit mechanism.

[0018] It can be seen from the above technical solutions that a reflection cone is disclosed in the present invention. The reflection cone has a concave side and a convex side. The concave side of the reflection cone is used to accommodate and install the magnetic circuit mechanism of the loudspeaker, and the convex side of the reflection cone is used to install the vibration mechanism of the loudspeaker. A channel for the voice coil of the vibration mechanism of the loudspeaker to pass through is disposed in the middle of the reflection cone; when the reflection cone is applied, the concave side is used to install the magnetic circuit mechanism of the loudspeaker, and the convex side is used to install the vibration mechanism of the loudspeaker. Through the above structural design of the reflection cone, while having the function of the reflection cone, it can also be used as a support frame of the loudspeaker to provide an installation position and support for the vibration mechanism, magnetic circuit mechanism, etc. of the loudspeaker, so that the loudspeaker does not need to be provided with an additional support structure. The reflection cone with the above structure can be integrated with the loudspeaker structure into a whole, effectively reducing the height of the loudspeaker using the reflection cone, facilitating the miniaturization and ultrathinning of electronic devices, and enabling the center of the speaker to be lower and more stable.

[0019] The present invention also provides a loudspeaker, which includes a vibration mechanism, a magnetic circuit mechanism, and the reflection cone as described above. The vibration mechanism and the magnetic circuit mechanism are respectively cooperatively connected to the reflection cone, and the magnetic circuit mechanism is disposed on the concave side of the reflection cone, and the vibration mechanism is disposed on the arched side of the reflection cone. The voice coil of the vibration mechanism passes through the reflection cone and extends into the magnetic gap for magnetic circuit detection. The above magnetic circuit mechanism can be an internal magnetic structure or an external magnetic structure. The above loudspeaker and the above reflection cone adopt an integrated structure, which can not only reduce the overall height, facilitate the miniaturization and ultra-thinning of electronic devices, but also dispose the magnetic circuit mechanism outside the cavity of the electronic device, thereby helping to increase the cavity volume of the electronic device, improving the low-frequency loss caused by the small cavity, enhancing the low-frequency energy, and also being beneficial to the placement of internal electronic components in the cavity. Since the electronic components and the WiFi / Bluetooth antenna are far away from the magnetic circuit mechanism of the loudspeaker, the interference of the magnetic circuit mechanism to them can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0021] Figure 1 It is a cross-sectional view of the loudspeaker provided by the embodiment of the present invention;

[0022] Figure 2 is Figure 1 a partial enlarged schematic view of part A in

[0023] Wherein:

[0024] 1 is the reflection cone; 101 is the cone body; 102 is the ring plate; 103 is the sound radiation window; 2 is the vibration mechanism; 201 is the voice coil; 202 is the diaphragm; 203 is the outer surround; 204 is the inner surround of the voice coil; 3 is the magnetic circuit mechanism; 301 is the U-shaped yoke; 302 is the magnet; 303 is the washer; 4 is the support column; 5 is the sound-absorbing damping annular pad; 6 is the filter net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] One of the cores of the present invention is to provide a reflection cone, and the structural design of the reflection cone enables it to be integrated with a loudspeaker as a whole, thereby reducing the height of the loudspeaker with a reflection cone and facilitating the miniaturization and ultra-thinning design of the electronic device with the loudspeaker.

[0026] Another core of the present invention is to provide a loudspeaker based on the above reflection cone.

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 , Figure 1 , which is a cross-sectional view of the speaker provided by the embodiment of the present invention.

[0029] In the embodiment of the present invention, a reflection cone 1 is disclosed. The reflection cone 1 has a concave side and a convex side. Its concave side is a concave conical surface, and its convex side is a convex conical surface. The concave side of the reflection cone 1 is used to accommodate and install the magnetic circuit mechanism 3 of the speaker, and the convex side of the reflection cone 1 is used to install the vibration mechanism 2 of the speaker. A channel for the voice coil 201 of the vibration mechanism 2 of the speaker to pass through is provided in the middle of the reflection cone 1.

[0030] It can be seen that compared with the prior art, when the reflection cone 1 provided by the embodiment of the present invention is applied, the concave side is used to install the magnetic circuit mechanism 3 of the speaker, and the convex side is used to install the vibration mechanism 2 of the speaker. Through the above structural design of the reflection cone 1, while having the reflection function of the reflection cone 1, it can also serve as a support frame for the speaker, providing installation positions and support for the vibration mechanism 2, magnetic circuit mechanism 3, etc. of the speaker, so that the speaker no longer needs to be provided with an additional support structure. The reflection cone 1 with the above structure can be integrated with the speaker structure into a whole, effectively reducing the height of the speaker using the reflection cone 1, facilitating the miniaturization and ultra-thinness of electronic devices, and enabling the center of the speaker to be lower and more stable.

[0031] Preferably, as Figure 1 shown, in the embodiment of the present invention, a plurality of sound radiation windows 103 penetrating the reflection cone 1 are circumferentially provided on the outer edge of the reflection cone 1, and the sound radiation windows 103 can accurately diffuse the sound field.

[0032] Furthermore, the above reflection cone 1 includes a cone body 101 and a ring plate 102 disposed around the periphery of the convex side of the cone body 101. The ring plate 102 is integrally connected with the cone body 101. The sound radiation window 103 is provided on the ring plate 102 and / or the cone body 101, and the ring plate 102 can serve as a support for the vibration mechanism 2.

[0033] Preferably, as Figure 1 shown, in the embodiment of the present invention, a smooth transition connection is provided between the inner side wall of the ring plate 102 and the surface of the convex side of the cone body 101.

[0034] Further optimize the above technical solution. The convex conical surface on the arched side and the concave conical surface on the concave side of the cone 101 both have an increasing curvature from the edge to the middle. That is, from the cross-sectional view, as Figure 1 shown, the constituent curves of the convex conical surface and the concave conical surface are both smooth and concave curves.

[0035] The embodiment of the present invention also provides a loudspeaker. As Figure 1 shown, the loudspeaker includes a vibration mechanism 2, a magnetic circuit mechanism 3, and a reflection cone 1 as described in any one of the above. The vibration mechanism 2 and the magnetic circuit mechanism 3 are respectively connected to the reflection cone 1 in cooperation. And the magnetic circuit mechanism 3 is arranged on the concave side of the reflection cone 1, and the vibration mechanism 2 is arranged on the arched side of the reflection cone 1. The voice coil 201 of the vibration mechanism 2 passes through the reflection cone 1 and extends into the magnetic gap of the magnetic circuit detection. The above magnetic circuit mechanism 3 can be an internal magnetic structure or an external magnetic structure. The above loudspeaker and the reflection cone 1 in the above embodiment adopt an integrated structure. The reflection cone 1 serves as both the reflection device of the loudspeaker and the installation support bracket of the loudspeaker. This structural design can not only reduce the overall height of the loudspeaker, facilitate the miniaturization and ultrathinning of electronic devices, but also arrange the magnetic circuit mechanism 3 outside the cavity of the electronic device, which helps to increase the cavity volume of the electronic device, can improve the low-frequency loss caused by the small cavity, enhance the low-frequency energy, and is also beneficial to the placement of electronic components inside the cavity of the electronic device. Because the electronic components and WiFi / Bluetooth antennas are far away from the magnetic circuit mechanism 3 of the loudspeaker, the interference of the magnetic circuit mechanism 3 to them can be reduced.

[0036] Preferably, as Figure 1 and Figure 2 shown, an absorbent damping annular pad 5 surrounding the voice coil 201 of the vibration mechanism 2 is arranged in the channel on the reflection cone 1 through which the voice coil 201 of the vibration mechanism 2 passes. The absorbent damping annular pad 5 and the magnetic gap of the magnetic circuit mechanism 3 can form a small sound cavity and damping characteristics, effectively absorbing the high-frequency peak formed by the loudspeaker and the reflection cone 1 and improving the sound quality.

[0037] Furthermore, in the embodiment of the present invention, as Figure 2 shown, a filter screen 6 is arranged on the absorbent damping annular pad 5 and the end surface of the reflection cone 1 facing the vibration mechanism 2. The filter screen 6 can effectively prevent particles from entering the magnetic gap of the magnetic circuit mechanism 3.

[0038] Preferably, in the embodiment of the present invention, the magnetic circuit mechanism 3 adopts an internal magnetic structure, which includes a U-shaped iron 301, a magnet 302, and a washer 303. The magnet 302 is arranged on the inner bottom wall of the U-shaped iron 301, the washer 303 is arranged on the magnet 302, and a magnetic gap is formed between the magnet 302 and the washer 303 and the side wall of the U-shaped iron 301. The reflection cone 1 is connected to the side wall of the U-shaped iron 301 in cooperation. As Figure 1As shown, at the top of the side wall of the U-shaped iron 301, there is an installation conical surface for mating with the concave conical surface on the reflection cone 1, and the concave conical surface of the reflection cone 1 is in contact and mating with this installation conical surface.

[0039] As Figure 1 shown, in addition to the voice coil 201, the above-mentioned vibration mechanism 2 further includes an outer folding ring 203, a speaker cone 202, and an inner voice coil folding ring 204. A through hole for mating and connecting with the voice coil 201 is provided in the middle of the speaker cone 202. The outer peripheral edge of the speaker cone 202 is connected to the outer folding ring 203 and is connected to the reflection cone 1 through the outer folding ring 203. The inner voice coil folding ring 204 is arranged inside the voice coil 201.

[0040] Preferably, in the embodiments of the present invention, a support mechanism is provided between the vibration mechanism 2 and the magnetic circuit mechanism 3. Specifically, as Figure 1 shown, this support mechanism is a support column 4. One end of the support column 4 is connected to the washer 303 of the magnetic circuit mechanism 3, and the other end is connected to the inner voice coil folding ring 204 of the vibration mechanism 2.

[0041] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reflection cone, characterized in that, the reflection cone has a concave side and a convex side. The concave side of the reflection cone is used to accommodate and install the magnetic circuit mechanism of the speaker, and the convex side of the reflection cone is used to install the vibration mechanism of the speaker. A channel for the voice coil of the vibration mechanism of the speaker to pass through is provided in the middle of the reflection cone; an absorbent damping annular pad surrounding the voice coil of the vibration mechanism is provided in the channel of the reflection cone through which the voice coil of the vibration mechanism passes. The absorbent damping annular pad and the magnetic gap of the magnetic circuit mechanism can form a sound cavity and absorb the high-frequency peak formed by the speaker and the reflection cone; a cavity communicating with the sound cavity is formed between the outer ring of the voice coil and the outer side wall of the outer ring of the magnetic gap. One end of the sound cavity far from the cavity has an opening, and the cross-section of the opening is smaller than the cross-section of the sound cavity, and the cross-section of the sound cavity is larger than the cross-section of the cavity.

2. The reflection cone according to claim 1, characterized in that, a plurality of sound radiation windows penetrating the reflection cone are circumferentially provided on the outer edge of the reflection cone.

3. The reflection cone according to claim 2, characterized in that, the reflection cone includes a cone body and a ring plate provided on the periphery of the convex side of the cone body. The sound radiation window is provided on the ring plate and / or the cone body.

4. The reflection cone according to claim 3, characterized in that, the inner side wall of the ring plate and the surface of the convex side of the cone body are smoothly transitionally connected.

5. The reflection cone according to any one of claims 1-4, characterized in that, the conical surfaces of the convex side and the concave side of the cone body both have an increasing curvature from the edge to the middle.

6. A speaker, characterized in that, it includes a vibration mechanism, a magnetic circuit mechanism and a reflection cone according to any one of claims 1-5. The vibration mechanism and the magnetic circuit mechanism are respectively connected in cooperation with the reflection cone. The magnetic circuit mechanism is arranged on the concave side of the reflection cone, and the vibration mechanism is arranged on the convex side of the reflection cone. The voice coil of the vibration mechanism passes through the reflection cone and extends into the magnetic gap of the magnetic circuit mechanism.

7. The speaker according to claim 6, characterized in that, a filter screen is provided on the absorbent damping annular pad and the end surface of the reflection cone facing the vibration mechanism.

8. The speaker according to claim 6 or 7, characterized in that, the magnetic circuit mechanism includes a U-shaped iron, a magnet and a washer. The magnet is arranged on the inner bottom wall of the U-shaped iron, the washer is arranged on the magnet, and a magnetic gap is formed between the magnet and the washer and the side wall of the U-shaped iron. The reflection cone is connected in cooperation with the side wall of the U-shaped iron.

9. The speaker according to claim 8, characterized in that, the vibration mechanism further includes an outer folding ring, a sound basin and an inner folding ring of the voice coil. A through hole for cooperating with the voice coil is provided in the middle of the sound basin. The outer peripheral edge of the sound basin is connected to the outer folding ring and is connected to the reflection cone through the outer folding ring. The inner folding ring of the voice coil is arranged inside the voice coil.

10. The speaker according to any one of claims 6, 7 and 9, characterized in that, A support mechanism is provided between the vibration mechanism and the magnetic circuit mechanism.

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