Ferrite high-frequency voice coil vibration module
By using copper columns and copper plates in the ferrite high-frequency voice coil vibration module for heat dissipation, the problem of low heat dissipation efficiency in the prior art is solved, and a more efficient heat dissipation effect is achieved, the problem of excessive temperature inside the speaker box is avoided, and the speaker box of different thicknesses is adapted.
Patent Information
- Application Number
- CN202421836611.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing ferrite high-frequency voice coil vibration module generates heat during use and has low heat dissipation efficiency, resulting in excessive internal temperature of the speaker box, affecting the accuracy of sound production.
By installing copper columns and copper plates in the audio box, the copper columns pass through the audio box plate and are fixed to the outside of the audio box plate through the copper plate. The thermal conductivity of copper is used to transfer heat to the outside of the audio box, improving heat dissipation efficiency.
It effectively reduces the temperature inside the speaker box, improves the heat dissipation efficiency, avoids the decrease in sound accuracy caused by high temperature, and adapts to speaker boxes of different thicknesses through telescopic components, increasing versatility.
Smart Images
Figure CN222869045U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high-frequency voice coils, and in particular relates to a ferrite high-frequency voice coil vibration module. Background Art
[0002] High-frequency voice coils, which generate sound by pushing air through a vibration module, are widely used as drivers in audio equipment because of their high sensitivity, high precision, and high efficiency. They are an important component of the mechanical wave system of electric speakers.
[0003] At present, the existing ferrite high-frequency voice coil vibration module will generate heat during use. The existing vibration module is installed on the inside of the speaker box. The heat dissipation effect is separated by a layer of box board, and the efficiency is poor, resulting in excessive temperature accumulation inside the speaker box, which easily affects the internal air volume and affects the accuracy of the sound.
[0004] Therefore, in order to solve the problem that the heat dissipation of the above-mentioned existing ferrite high-frequency voice coil vibration module is only carried out through the heat dissipation holes opened on the speaker box, and the heat dissipation efficiency is relatively low, a ferrite high-frequency voice coil vibration module is provided to achieve the effect of transferring heat to the outside of the speaker box by passing through the heat dissipation copper column of the speaker box. Utility Model Content
[0005] In order to overcome the problem that the existing ferrite high frequency voice coil vibration module only dissipates heat through the heat dissipation holes opened on the sound box, which has low efficiency.
[0006] The technical scheme of the utility model is: a ferrite high-frequency voice coil vibration module, comprising a voice coil body, a shell, a vibration component, a copper column, a copper plate, an extension plate and a telescopic component; the outer side of the voice coil body is sleeved with the shell, the vibration component is arranged in the shell, the voice coil body is inserted in the vibration component, the shell is inserted with a copper column connected to the vibration component, the front side of the copper column is fixedly connected with a copper plate, the left and right sides of the copper plate are movably connected with an extension plate with anchor holes on the surface, the copper column passes through an audio box plate, the extension plate is fixed on the audio box plate through an anchor, and a telescopic component for adjusting the length of the copper column is arranged in the shell.
[0007] Preferably, a copper column and a copper plate are added to the existing ferrite high-frequency voice coil vibration module. The copper column passes through the speaker box and is fixed to the outside of the speaker box through the copper plate. Copper has excellent thermal conductivity and can transfer heat to the outside of the speaker box, thereby improving the heat dissipation efficiency. The telescopic component can change the length of the copper column to adapt to speaker boxes of different thicknesses.
[0008] Preferably, a movable groove is provided on the opposite side of the extension plate, and the front and rear sides of the copper plate are fixedly connected with rotating shafts, which are movably connected in the movable groove. The extension plate is movably connected to the copper plate through the rotating shaft. During installation, the extension plate is folded up to facilitate the copper column and the copper plate to pass through the holes and grooves provided on the sound box plate, and then the extension plate is unfolded and fixed.
[0009] Preferably, the vibration component includes a ferrite magnet, a metal platform and a metal column; a ferrite magnet located in a shell is arranged on the rear side of the voice coil body, a metal platform is installed on the rear side of the ferrite magnet, a metal column is fixedly connected to the metal platform, the metal column passes through the ferrite magnet, the voice coil body is inserted in the gap between the metal column and the ferrite magnet, a support platform is installed on the front side of the ferrite magnet, a natural magnetic field is formed by the gap between the metal column passing through the ferrite magnet and the ferrite magnet, and the voice coil with power on becomes an electromagnet. According to the size of the current passing through, the voice coil body will move back and forth in the gap to varying degrees.
[0010] Preferably, the telescopic assembly includes a telescopic slot and a limit ring; a telescopic slot is opened on the outer shell, the copper column is movably connected in the telescopic slot, the front side of the copper column is fixedly connected to the limit ring, and the support platform is installed on the limit ring. The outer diameter of the copper column is smaller than the inner diameter of the telescopic slot opened on the outer shell, while the outer diameter of the limit ring is larger than the inner diameter of the telescopic slot. The limit ring cannot be removed from the telescopic slot and can only be fixed tightly to prevent the copper column and the vibration assembly from being disconnected from the outer shell.
[0011] Preferably, the telescopic assembly also includes a slot and an elastic buckle; the outer shell is provided with equidistantly arranged slots, and an elastic buckle matching the slot is elastically connected inside the limiting ring. The copper column moves inside the outer shell, and when the elastic buckle moves to the slot position, the elastic buckle that loses the squeezing of the inner wall of the outer shell pops out from the limiting ring and is snapped into the slot to be fixed.
[0012] Preferably, a power supply electrically connected to the voice coil body is installed on the limit ring, a diaphragm is fixedly connected to the voice coil body, a sound amplifying paper is fixedly connected to the front side of the diaphragm, the power supply provides current to the voice coil body, the movement of the voice coil body drives the diaphragm to vibrate, the diaphragm hits the air to produce sound, and the sound is amplified and transmitted through the sound amplifying paper.
[0013] Preferably, a spring is sleeved on the outside of the voice coil body, one end of the spring is fixedly connected to the rear side of the sound amplification paper, and the other end of the spring is fixed to the front end of the support platform. The current passing through the voice coil body is different in size, resulting in different amplitudes of movement of the voice coil body, thereby affecting the amplitude of the diaphragm. The spring can use its own elastic force to drive the voice coil body to reset.
[0014] Beneficial effects of the utility model:
[0015] 1. By adding a copper column connected to the vibration module and a copper plate fixed to the rear side of the copper column to the existing ferrite high-frequency voice coil vibration module, the copper column passes through the sound box board and is fixed to the outside of the sound box board through the copper plate. Copper has excellent thermal conductivity and can transfer the heat generated by the vibration module to the outside of the sound box. The copper plate is in unobstructed contact with the external air, which can improve the efficiency of heat dissipation and avoid excessive temperature in the sound box.
[0016] 2. The copper column can drive the limit plate to move in the outer shell, so as to change the distance between the copper column and the outer wall of the speaker box, so that it can adapt to speaker boxes of different thicknesses and increase its versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 What is shown is a schematic diagram of the first three-dimensional structure of the ferrite high-frequency voice coil vibration module of the utility model;
[0018] Figure 2 The three-dimensional structure diagram of the extension plate of the ferrite high-frequency voice coil vibration module of the utility model is shown;
[0019] Figure 3 The figure shows the three-dimensional structure of the copper column and copper plate of the ferrite high-frequency voice coil vibration module of the utility model;
[0020] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of the shell of the ferrite high-frequency voice coil vibration module of the utility model;
[0021] Figure 5 The three-dimensional structure diagram of the vibration component of the ferrite high-frequency voice coil vibration module of the utility model is shown;
[0022] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the voice coil body, spring and sound amplification paper of the ferrite high-frequency voice coil vibration module of the utility model.
[0023] Explanation of the reference numerals: 1. Voice coil body; 2. Housing; 3. Copper column; 4. Copper plate; 5. Extension plate; 6. Movable slot; 7. Rotating shaft; 801. Ferrite magnet; 802. Metal table; 803. Metal column; 901. Telescopic slot; 902. Limiting ring; 903. Card slot; 904. Elastic buckle; 10. Power supply; 11. Diaphragm; 12. Amplifying paper; 13. Spring. DETAILED DESCRIPTION
[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0025] See also Figure 1-Figure 6The utility model provides an embodiment: a ferrite high-frequency voice coil vibration module includes a voice coil body 1, a shell 2, a vibration component, a copper column 3, a copper plate 4, an extension plate 5 and a telescopic component; the outer side of the voice coil body 1 is sleeved with the shell 2, the vibration component is arranged in the shell 2, the voice coil body 1 is inserted in the vibration component, the shell 2 is inserted with a copper column 3 connected to the vibration component, the front side of the copper column 3 is fixedly connected with a copper plate 4, the left and right sides of the copper plate 4 are movably connected with an extension plate 5 with anchor holes on the surface, the copper column 3 passes through the sound box board, the extension plate 5 is fixed on the sound box board through anchors, and a telescopic component for adjusting the length of the copper column 3 is arranged in the shell 2. By adding the copper column 3 and the copper plate 4 to the existing ferrite high-frequency voice coil vibration module, the copper column 3 passes through the sound box board and is fixed to the outer side of the sound box board through the copper plate 4. The thermal conductivity of copper is excellent, and heat can be transferred to the outside of the sound box, which can improve the heat dissipation efficiency. The telescopic component can change the length of the copper column 3 to adapt it to sound boxes of different thicknesses.
[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 In this embodiment, a movable groove 6 is provided on the opposite side of the extension plate 5, and a rotating shaft 7 is fixedly connected to the front and rear sides of the copper plate 4, and the rotating shaft 7 is movably connected to the movable groove 6. The vibration component includes a ferrite magnet 801, a metal platform 802 and a metal column 803; a ferrite magnet 801 located in the housing 2 is arranged on the rear side of the voice coil body 1, and a metal platform 802 is installed on the rear side of the ferrite magnet 801, and a metal column 803 is fixedly connected to the metal platform 802, and the metal column 803 passes through the ferrite magnet 801, and the voice coil body 1 is inserted It is connected to the gap between the metal column 803 and the ferrite magnet 801. A support platform is installed on the front side of the ferrite magnet 801. During installation, the extension plate 5 is folded to facilitate the copper column 3 and the copper plate 4 to pass through the hole groove opened on the sound box plate. Then the extension plate 5 is unfolded and fixed. The metal column 803 passing through the ferrite magnet 801 and the gap between the ferrite magnet 801 will form a natural magnetic field, and the energized voice coil will become an electromagnet. According to the size of the current passing through, the voice coil body 1 will move back and forth in the gap to varying degrees.
[0027] See also Figure 1 , Figure 3 , Figure 4 , Figure 6In this embodiment, the telescopic assembly includes a telescopic slot 901 and a limit ring 902; a telescopic slot 901 is provided on the shell 2, and the copper column 3 is movably connected to the telescopic slot 901. The front side of the copper column 3 is fixedly connected to the limit ring 902, and the support platform is installed on the limit ring 902. The telescopic assembly also includes a card slot 903 and an elastic buckle 904; the shell 2 is provided with equidistantly arranged card slots 903, and the limit ring 902 is elastically connected with an elastic buckle 904 matching the card slot 903. A power supply 10 electrically connected to the voice coil body 1 is installed on the limit ring 902, and a diaphragm 11 is fixedly connected to the voice coil body 1, and a sound amplification paper 12 is fixedly connected to the front side of the diaphragm 11. A spring 13 is sleeved on the outside of the voice coil body 1, and one end of the spring 13 is fixedly connected to the rear side of the sound amplification paper 12, and the other end of the spring 13 is fixed to the front end of the support platform. The outer diameter of the copper column 3 is smaller than that of the shell 2. The inner diameter of the expansion slot 901 is provided, while the outer diameter of the limit ring 902 is larger than the inner diameter of the expansion slot 901. The limit ring 902 cannot be moved out of the expansion slot 901 and can only be closely attached to form a fixation, thereby preventing the copper column 3 and the vibration component from being disconnected from the shell 2. The copper column 3 moves in the shell 2. When the elastic buckle 904 moves to the slot 903 position, the elastic buckle 904 that has lost the squeezing of the inner wall of the shell 2 pops out from the limit ring 902 and is snapped into the slot 903 to form a fixation. The power supply 10 provides current to the voice coil body 1. The movement of the voice coil body 1 drives the diaphragm 11 to vibrate. The diaphragm 11 hits the air to generate sound, and the sound is amplified and transmitted through the sound amplification paper 12. The size of the current passing through the voice coil body 1 is different, resulting in different amplitudes of movement of the voice coil body 1, thereby affecting the amplitude of the diaphragm 11. The spring 13 can use its own elastic force to drive the voice coil body 1 to reset.
[0028] When working, the staff first installs the support platform on the limit ring 902, then installs the metal platform 802 on the support platform, and then installs the ferrite magnet 801 on the metal platform 802, so that the metal column 803 passes through the hole slot opened in the center of the ferrite magnet 801, and then inserts the voice coil body 1 into the gap between the metal column 803 and the ferrite magnet 801, and then adheres the diaphragm 11 to the voice coil body 1, adheres the sound amplification paper 12 to the diaphragm 11 and connects the two ends of the spring 13 to the support platform and the rear of the sound amplification paper 12 respectively, installs the power supply 10 on the support platform, and connects it to the wire on the voice coil body 1;
[0029] Pass the copper column 3 and the copper plate 4 fixed to the copper column 3 through the hole groove on the sound box board, then rotate the shaft 7 to extend the extension plate 5, and fix the extension plate 5 on the sound box board through the anchor, then press the elastic buckle 904 with one hand and pull the shell 2 outward with the other hand, the elastic buckle 904 loses its fixing ability under the squeeze, and the copper column 3 moves in the telescopic groove 901 until it moves to the appropriate position, and the user releases his hand, and the elastic buckle 904 pops out from the limit ring 902 and is clamped in the card slot 903 to be fixed;
[0030] When in use, the heat generated by the vibration component is transferred along the copper column 3 to the copper plate 4 outside the sound box, and then contacts with the air through the copper plate 4 exposed to the outside, thereby achieving the effect of rapid heat dissipation.
[0031] Through the above steps, a copper column 3 connected to the vibration module and a copper plate 4 fixed to the rear side of the copper column 3 are added to the existing ferrite high-frequency voice coil vibration module. The copper column 3 passes through the sound box board and is fixed to the outside of the sound box board through the copper plate 4. Copper has excellent thermal conductivity and can transfer the heat generated by the vibration module to the outside of the sound box. The copper plate 4 is in unobstructed contact with the external air, which can improve the heat dissipation efficiency and avoid excessive temperature in the sound box, so as to solve the problem that the existing ferrite high-frequency voice coil vibration module only dissipates heat through the heat dissipation holes opened on the sound box, which is inefficient.
[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A ferrite high-frequency voice coil vibration module, comprising a voice coil body (1) and a housing (2); characterized in that: The invention also comprises a vibration component, a copper column (3), a copper plate (4), an extension plate (5) and a telescopic component; the outer side of the voice coil body (1) is sleeved with a shell (2), the shell (2) is provided with a vibration component, the voice coil body (1) is inserted into the vibration component, the shell (2) is provided with a copper column (3) connected to the vibration component, the front side of the copper column (3) is fixedly connected with a copper plate (4), the left and right sides of the copper plate (4) are movably connected with an extension plate (5) with anchor holes on the surface, the copper column (3) passes through the sound box plate, the extension plate (5) is fixed to the sound box plate by anchoring pieces, and the shell (2) is provided with a telescopic component for adjusting the length of the copper column (3).
2. The ferrite high frequency voice coil vibration module according to claim 1, characterized in that: A movable groove (6) is provided on the opposite side of the extension plate (5), and a rotating shaft (7) is fixedly connected to both the front and rear sides of the copper plate (4), and the rotating shaft (7) is movably connected in the movable groove (6).
3. The ferrite high frequency voice coil vibration module according to claim 2, characterized in that: The vibration component comprises a ferrite magnet (801), a metal platform (802) and a metal column (803); a ferrite magnet (801) located in a housing (2) is arranged on the rear side of the voice coil body (1); a metal platform (802) is installed on the rear side of the ferrite magnet (801); a metal column (803) is fixedly connected to the metal platform (802); the metal column (803) passes through the ferrite magnet (801); the voice coil body (1) is inserted into the gap between the metal column (803) and the ferrite magnet (801); and a support platform is installed on the front side of the ferrite magnet (801).
4. The ferrite high frequency voice coil vibration module according to claim 3, characterized in that: The telescopic assembly comprises a telescopic slot (901) and a limiting ring (902); the shell (2) is provided with the telescopic slot (901), the copper column (3) is movably connected in the telescopic slot (901), the front side of the copper column (3) is fixedly connected to the limiting ring (902), and the support platform is mounted on the limiting ring (902).
5. The ferrite high frequency voice coil vibration module according to claim 4, characterized in that: The telescopic assembly further comprises a card slot (903) and an elastic card buckle (904); the outer shell (2) is provided with the card slots (903) arranged at equal intervals, and the limiting ring (902) is elastically connected with an elastic card buckle (904) matching the card slots (903).
6. The ferrite high frequency voice coil vibration module according to claim 5, characterized in that: A power source (10) electrically connected to the voice coil body (1) is mounted on the limiting ring (902), a diaphragm (11) is fixedly connected to the voice coil body (1), and a sound amplification paper (12) is fixedly connected to the front side of the diaphragm (11).
7. The ferrite high frequency voice coil vibration module according to claim 1, characterized in that: A spring (13) is sleeved on the outside of the voice coil body (1), one end of the spring (13) is fixedly connected to the rear side of the sound amplification paper (12), and the other end of the spring (13) is fixed to the front end of the support platform.