Loudspeaker with additional heat dissipation structure

Abstract

The utility model provides a loudspeaker with an additional heat dissipation structure, which comprises a magnetic conduction carrying component, a magnetic force driving component, a magnetic conduction matching component, an excitation stress component, a vibration sound production component, a sound production guide component and a driving heat dissipation component. Meanwhile, unnecessary vibration interference is reduced, a guide space is formed by a guide outer cylinder and a guide end of the sound production guide component, sound produced by the vibrating diaphragm is guided, directivity and distribution uniformity of the sound are improved, the sound is transmitted more intensively, and a heat dissipation cover ring of the driving heat dissipation component is made of a heat conduction material, so that heat dissipation efficiency is improved. The heat dissipation cover ring is arranged on the outer wall of the magnetic force driving component and connected to the outside of the driving magnetic ring, heat generated by the magnetic force driving component in the working process is effectively dispersed and released, the heat dissipation area is further increased through the heat dissipation ring groove formed in the outer wall of the heat dissipation cover ring, the heat dissipation efficiency is improved, and the stability and reliability of the loudspeaker in the working process can be kept.

Description

Technical Field

[0001] This utility model relates to loudspeakers, and more particularly to a loudspeaker with an additional heat dissipation structure. Background Technology

[0002] Patent document CN203015108U discloses a loudspeaker, which includes a loudspeaker body, a loudspeaker bracket, a loudspeaker diaphragm, a dust cap, a spider, a voice coil, a magnetic circuit structure, and a base. The loudspeaker diaphragm, dust cap, and spider are mounted on the loudspeaker bracket, the magnetic circuit structure is fixed on the base, and the voice coil is disposed within the magnetic circuit structure. The voice coil includes a first voice coil and a second voice coil, which are wound in opposite directions. The voice coil includes a voice coil frame and a voice coil wire, with the voice coil wire wound around the middle of the voice coil frame. At least one vent is provided at the upper end of the voice coil frame. This design is simplified, small in size, easy to assemble, and produces good sound quality. It can prevent the voice coil lead from breaking under stress, thus enhancing the audio effect. However, after long-term operation, the magnet of this loudspeaker vibrates under the action of the magnetic field force during operation. The interaction between the current and the magnetic field generates heat, which in turn raises the temperature of the magnet. As the temperature rises, the magnetic properties of the magnet gradually decrease. The increased temperature leads to a decrease in the magnetic energy product and coercivity of the magnet, thereby affecting the sound quality and performance of the loudspeaker. Therefore, it is necessary to optimize the structure of this loudspeaker to overcome the aforementioned defects. Utility Model Content

[0003] The purpose of this invention is to provide a speaker with an additional heat dissipation structure to improve its heat dissipation performance.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A loudspeaker with an additional heat dissipation structure, comprising:

[0006] A magnetically conductive support component having a support space;

[0007] A magnetic drive component is installed in a magnetically conductive support component, which generates a magnetic field in the magnetically conductive support component. The magnetically conductive support component supports the magnetic drive component and conducts the magnetic field of the magnetic drive component.

[0008] A magnetically conductive mating component is installed in a magnetically driven component and cooperates with a magnetically conductive support component. The magnetically conductive mating component conducts the magnetic field of the magnetically driven component and forms a driving magnetic field between the magnetically conductive mating component and the magnetically conductive support component.

[0009] An excitation force-bearing component is installed in the driving magnetic field between the magnetically conductive support component and the magnetically conductive mating component, and is connected to the power supply through a line, and can vibrate in the driving magnetic field.

[0010] A vibrating sound-generating component is installed in a magnetically conductive fitting and is connected to an excitation force-bearing component. The excitation force-bearing component drives the vibrating sound-generating component to produce sound.

[0011] A sound-generating guide component is installed in the magnetic support component and the magnetic mating component, and cooperates with the vibrating sound-generating component. The sound-generating guide component guides the sound emitted by the vibrating sound-generating component.

[0012] A heat dissipation drive component is installed in the magnetic drive component and can perform heat dissipation treatment on the magnetic drive component.

[0013] Specifically, the magnetically conductive support component includes:

[0014] The support base is made of ferromagnetic material and has a support space on its axial end face.

[0015] A magnetic core post is formed on the axial end face of the support base and protrudes outward along the axial direction of the support base. Its end has a magnetic outer edge that extends circumferentially along the magnetic core post and protrudes outward along the radial direction of the magnetic core post.

[0016] The magnetic drive component includes:

[0017] A driving magnetic ring, the bottom of which is placed on the axial end face of the support base and surrounds the outer side of the magnetic core column, and the magnetic field of the driving magnetic ring is conducted by the magnetic core column and the magnetic outer edge.

[0018] An isolation felt ring is filled between the inner wall of the drive magnetic ring and the outer wall of the magnetic core column, thereby isolating the drive magnetic ring and the magnetic core column.

[0019] The magnetically conductive mating components include:

[0020] The magnetic pressure ring is made of ferromagnetic material and is placed on top of the driving magnetic ring and surrounds the outer side of the magnetic core column. Its inner wall has a magnetic inner edge that extends circumferentially along the magnetic pressure ring and protrudes radially into the inner side of the magnetic pressure ring, corresponding to the position of the magnetic outer edge. The magnetic pressure ring and the magnetic inner edge conduct the magnetic field of the driving magnetic ring, forming a driving magnetic field between the magnetic outer edge and the magnetic inner edge.

[0021] The excitation force-bearing components include:

[0022] The force-bearing cylindrical shell is located between the outer edge and the inner edge of the magnetic field. Its outer wall is wrapped with an excitation coil, which is connected to the power supply through a circuit. The force-bearing cylindrical shell is driven to vibrate in the driving magnetic field by the driving magnetic ring.

[0023] The vibrating sound-generating components include:

[0024] A central support is installed on top of the magnetic core post;

[0025] Side support ring, which is installed on the top of the magnetic pressure ring and corresponds to the position of the central support;

[0026] The vibrating diaphragm is connected to the central support in the middle and its edge is connected to the side support ring. The end of the force-bearing cylinder is connected to the vibrating diaphragm. The force-bearing cylinder drives the vibrating diaphragm to vibrate and produce sound.

[0027] The sound-guiding components include:

[0028] The outer guide cylinder is inverted conical in shape, with one end installed on the top of the magnetic pressure ring and the diameter of the other end gradually expanding.

[0029] The guide end is tapered, with one end mounted on the top of the magnetic core column and pressed against the central support and the top of the diaphragm. The diameter of the other end gradually decreases, forming a guide space between the guide end and the guide outer cylinder. The diaphragm is exposed from the guide space, and the sound emitted by the diaphragm is guided by the guide outer cylinder and the guide end.

[0030] The driving heat dissipation components include:

[0031] The heat sink ring is made of thermally conductive material and is attached to the outside of the drive magnetic ring. Its outer wall has heat dissipation grooves to increase the heat dissipation area of ​​the heat sink ring, which dissipates heat from the drive magnetic ring.

[0032] The advantages of this utility model are:

[0033] The excitation force-bearing shell in the loudspeaker vibrates in the driving magnetic field, causing the diaphragm of the sound-generating component to vibrate and produce sound, ensuring the clarity and accuracy of the sound. The diaphragm can vibrate stably through the support of the central support and the side rings, while reducing unnecessary vibration interference. The guide outer cylinder and guide end of the sound-guiding component form a guide space to guide the sound emitted by the diaphragm, which helps to improve the directivity and uniformity of sound distribution, making the sound more concentrated and propagating to the listener's position, thus improving the listening experience. The heat dissipation ring of the drive heat dissipation component is made of thermally conductive material and is joined to the outside of the drive magnetic ring, effectively dispersing and releasing the heat generated by the magnetic drive component during operation. The heat dissipation ring grooves opened on the outer wall of the heat dissipation ring further increase the heat dissipation area and improve the heat dissipation efficiency, which helps to maintain the stability and reliability of the loudspeaker during operation. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the external structure of the speaker with an additional heat dissipation structure proposed in this utility model;

[0035] Figure 2 This is a cross-sectional structural diagram of the speaker. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0037] like Figure 1 , Figure 2 As shown, the loudspeaker with an additional heat dissipation structure proposed in this utility model includes a magnetic support component, a magnetic drive component, a magnetic coupling component, an excitation force-bearing component, a vibration sound-generating component, a sound-guiding component, and a driving heat dissipation component. The magnetic support component has a support space. The magnetic drive component is installed in the magnetic support component and generates a magnetic field in the magnetic support component. The magnetic support component supports the magnetic drive component and conducts the magnetic field of the magnetic drive component. The magnetic coupling component is installed in the magnetic drive component and cooperates with the magnetic support component. The magnetic coupling component conducts the magnetic field of the magnetic drive component and conducts the magnetic field of the magnetic drive component. A driving magnetic field is formed between the component and the magnetic support component. The excitation force-bearing component is installed in the driving magnetic field between the magnetic support component and the magnetic mating component, and is connected to the power supply through a line. It can vibrate in the driving magnetic field. The vibration sound-generating component is installed in the magnetic mating component and is engaged with the excitation force-bearing component. The excitation force-bearing component drives the vibration sound-generating component to emit sound. The sound-generating guide component is installed in the magnetic support component and the magnetic mating component and cooperates with the vibration sound-generating component. The sound-generating guide component guides the sound emitted by the vibration sound-generating component. The driving heat dissipation component is installed in the magnetic driving component and can dissipate heat from the magnetic driving component.

[0038] In this embodiment, the magnetic support component includes a support base 110 and a magnetic core column 120. The support base is made of ferromagnetic material and has a support space on its axial end face. The magnetic core column is formed on the axial end face of the support base and protrudes outward along the axial direction of the support base. Its end has a magnetic outer edge 121, which extends circumferentially along the magnetic core column and protrudes outward along the radial direction of the magnetic core column.

[0039] The magnetic drive component includes a drive magnetic ring 210 and an isolation felt ring 220. The bottom of the drive magnetic ring is placed on the axial end face of the support base and surrounds the outer side of the magnetic core column. The magnetic field of the drive magnetic ring is conducted by the magnetic core column and the outer edge of the magnetic core column. The isolation felt ring is filled between the inner wall of the drive magnetic ring and the outer wall of the magnetic core column, and the isolation felt ring isolates the drive magnetic ring from the magnetic core column.

[0040] The magnetic coupling component includes a magnetic pressure ring 300, which is made of ferromagnetic material. It is placed on top of the driving magnetic ring and surrounds the outer side of the magnetic core column. Its inner wall has a magnetic inner edge 310, which extends circumferentially along the magnetic pressure ring and protrudes radially into the inner side of the magnetic pressure ring. It corresponds to the position of the magnetic outer edge. The magnetic pressure ring and the magnetic inner edge conduct the magnetic field of the driving magnetic ring, forming a driving magnetic field between the magnetic outer edge and the magnetic inner edge.

[0041] The excitation force-bearing component includes a force-bearing cylindrical shell 400, which is located between the outer edge and the inner edge of the magnetic conductor. The outer wall of the shell is wrapped with an excitation coil, which is connected to the power supply through a line. The force-bearing cylindrical shell is driven to vibrate in the driving magnetic field by the driving magnetic ring.

[0042] The vibrating sound-generating component includes a central support 510, a side ring 520, and a vibrating diaphragm 530. The central support is installed on the top of the magnetic core column, the side ring is installed on the top of the magnetic pressure ring and corresponds to the position of the central support, the middle part of the vibrating diaphragm is engaged with the central support, its edge is engaged with the side ring, and the end of the force-bearing cylinder is engaged with the vibrating diaphragm. The force-bearing cylinder drives the vibrating diaphragm to vibrate and generate sound.

[0043] The sound-guiding component includes a guide outer cylinder 610 and a guide end 620. The guide outer cylinder is inverted conical, with one end mounted on the top of the magnetic pressure ring, and the diameter of the other end gradually expanding. The guide end is conical, with one end mounted on the top of the magnetic core column and pressed against the central support and the top of the diaphragm, and the diameter of the other end gradually decreasing. A guiding space is formed between the guide end and the guide outer cylinder, and the diaphragm protrudes from the guiding space. The sound emitted by the diaphragm is guided by the guide outer cylinder and the guide end. In this embodiment, an elastic pressure ring 611 is provided between the guide outer cylinder and the side support ring. The guide outer cylinder presses and positions the side support ring and the diaphragm through the elastic pressure ring.

[0044] The drive heat dissipation component includes a heat dissipation shroud ring 700, which is made of thermally conductive material and is joined to the outside of the drive magnetic ring. A heat dissipation ring groove 710 is formed on its outer wall to increase the heat dissipation area of ​​the heat dissipation shroud ring, thereby dissipating heat from the drive magnetic ring. In this embodiment, the heat dissipation shroud ring is made of an aluminum alloy ring.

[0045] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A loudspeaker with an additional heat dissipation structure, characterized in that, include: A magnetically conductive support component having a support space; A magnetic drive component is installed in a magnetically conductive support component, which generates a magnetic field in the magnetically conductive support component. The magnetically conductive support component supports the magnetic drive component and conducts the magnetic field of the magnetic drive component. A magnetically conductive mating component is installed in a magnetically driven component and cooperates with a magnetically conductive support component. The magnetically conductive mating component conducts the magnetic field of the magnetically driven component and forms a driving magnetic field between the magnetically conductive mating component and the magnetically conductive support component. An excitation force-bearing component is installed in the driving magnetic field between the magnetically conductive support component and the magnetically conductive mating component, and is connected to the power supply through a line, and can vibrate in the driving magnetic field. A vibrating sound-generating component is installed in a magnetically conductive fitting and is connected to an excitation force-bearing component. The excitation force-bearing component drives the vibrating sound-generating component to produce sound. A sound-generating guide component is installed in the magnetic support component and the magnetic mating component, and cooperates with the vibrating sound-generating component. The sound-generating guide component guides the sound emitted by the vibrating sound-generating component. A heat dissipation drive component is installed in the magnetic drive component and can perform heat dissipation treatment on the magnetic drive component.

2. A loudspeaker with an additional heat dissipation structure according to claim 1, characterized in that, The magnetically conductive support components include: The support base is made of ferromagnetic material and has a support space on its axial end face. A magnetic core post is formed on the axial end face of the support base and protrudes outward along the axial direction of the support base. Its end has a magnetic outer edge that extends circumferentially along the magnetic core post and protrudes outward along the radial direction of the magnetic core post.

3. A loudspeaker with an additional heat dissipation structure according to claim 2, characterized in that, The magnetic drive component includes: A driving magnetic ring, the bottom of which is placed on the axial end face of the support base and surrounds the outside of the magnetic core column; An isolation felt ring is used to fill the space between the inner wall of the drive magnetic ring and the outer wall of the magnetic core column.

4. A loudspeaker with an additional heat dissipation structure according to claim 3, characterized in that, The magnetically conductive mating components include: The magnetic pressure ring is made of ferromagnetic material and is placed on top of the driving magnetic ring and surrounds the outer side of the magnetic core column. Its inner wall has a magnetic inner edge that extends circumferentially along the magnetic pressure ring and protrudes radially into the inner side of the magnetic pressure ring, corresponding to the position of the magnetic outer edge. A driving magnetic field is formed between the magnetic outer edge and the magnetic inner edge.

5. A loudspeaker with an additional heat dissipation structure according to claim 4, characterized in that, The excitation force-bearing components include: The force-bearing cylindrical shell is located between the outer edge and the inner edge of the magnetically conductive shell. Its outer wall is wrapped with an excitation coil, which is connected to the power supply through a circuit.

6. A loudspeaker with an additional heat dissipation structure according to claim 5, characterized in that, The vibrating sound-generating components include: A central support is installed on top of the magnetic core post; Side support ring, which is installed on the top of the magnetic pressure ring and corresponds to the position of the central support; A vibrating diaphragm is connected to a central support at its center, and its edge is connected to a side support ring. The end of the force-bearing cylinder is connected to the vibrating diaphragm.

7. A loudspeaker with an additional heat dissipation structure according to claim 6, characterized in that, The sound-guiding components include: The outer guide cylinder is inverted conical in shape, with one end installed on the top of the magnetic pressure ring and the diameter of the other end gradually expanding. The guide end is tapered, with one end mounted on the top of the magnetic core column and pressed against the central support and the top of the diaphragm. The diameter of the other end gradually decreases, forming a guide space between the guide end and the guide outer cylinder, through which the diaphragm protrudes.

8. A loudspeaker with an additional heat dissipation structure according to claim 3, characterized in that, The driving heat dissipation components include: The heat sink ring is made of thermally conductive material and is attached to the outside of the drive magnetic ring. Its outer wall has heat sink grooves.

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