Sound structure and electronic device using same
Through the magnetic permeability structure and full-range speaker design, the low-frequency playback and magnetic leakage problems of small speakers are solved, and efficient low-frequency sound quality propagation is achieved.
Patent Information
- Application Number
- CN202422515033.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Small-sized speakers are difficult to play low-frequency sounds, and permanent magnet speakers affect the sound effect in magnetic leakage sensitive environments.
The combination design of magnetic permeable bowl, magnetic upper plate, magnetic base, magnetic plate column and magnet is adopted to reduce magnetic leakage, and reduce sound attenuation through the front sound design of full-range speakers and mask.
Effectively reduce magnetic leakage and improve low-frequency playback effect. The propagation of each frequency band of the sound is reduced in front of it, the low-frequency sound has good directionality, and the auditory effect is improved.
Smart Images

Figure CN223297697U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sound structures, and in particular relates to a sound structure and an electronic device using the sound structure. Background Art
[0002] Nowadays, electronic devices are developing towards miniaturization and multi-functionality, requiring more hardware to support rich functions. As a result, the space left for the speaker cavity in electronic devices is getting smaller and smaller, which requires the size of the speaker to be smaller and smaller. Due to the limitations of size and internal space, the vibration membrane of small-sized speakers is designed to be relatively small, and the vibration amplitude of the vibration membrane is also relatively small. This determines that it is difficult for small-sized speakers to obtain a relatively low resonant frequency, and it is impossible to reproduce the low-frequency part of the audio well.
[0003] A utility model patent with the announcement number CN 102387446 B discloses an acoustic structure, which includes a sound cavity shell and a speaker disposed in the sound cavity shell. The acoustic structure also includes a low-frequency resonance unit disposed in the sound cavity shell. The low-frequency resonance unit includes a vibrating body and a mass block connected to the vibrating body. The speaker is responsible for the mid- and high-frequency parts of the sound, and the low-frequency resonance unit is responsible for the low-frequency part of the sound. The present invention also provides an electronic device using the above-mentioned acoustic structure, the electronic device includes a housing, and the acoustic structure is disposed in the housing. The acoustic structure has the low-frequency resonance unit responsible for the low-frequency part of the sound, which makes up for the speaker's playback defect for the low-frequency part of the sound and improves the bass effect of the acoustic structure.
[0004] Regarding the above-mentioned related technologies, the utility model applicant believes that there are the following defects:
[0005] 1. The electric speaker used in the speaker adopts permanent magnets in its magnetic circuit, which may cause magnetic leakage. Therefore, in an environment that is sensitive to magnetic leakage, it is necessary to adopt an anti-magnetic leakage design for the speaker magnetic circuit to avoid affecting the sound effect.
[0006] Therefore, it is necessary to provide a new sound structure and an electronic device using the sound structure to solve the above technical problems. Utility Model Content
[0007] The technical problem solved by the utility model is to provide an acoustic structure which can reduce magnetic leakage through the cooperation of a magnetic bowl, a magnetic upper plate, a magnetic base, a magnetic plate column and a magnet, and an electronic device using the acoustic structure.
[0008] To solve the above technical problems, the present invention provides an audio structure and an electronic device using the same, comprising: a tweeter and a full-range speaker. The full-range speaker comprises a speaker body, a fixing ring, two connecting rods, a magnetic bowl, a magnetic upper plate, a magnetic base, a magnetic plate column, and a magnet. The fixing ring is provided on one side of the speaker body, and the two connecting rods are fixedly mounted on the fixing ring. The ends of the two connecting rods away from the fixing ring are fixedly connected to the speaker body.
[0009] The fixed ring is mounted on the magnetic bowl, the magnetic upper plate is mounted on the inner wall of the magnetic bowl, the magnetic base is mounted on the inner wall of the fixed ring, the magnetic plate column is mounted on the magnetic base, and both magnets are mounted on the magnetic plate column.
[0010] As a further solution of the present invention, the magnetic base and the two magnets are all located in the magnetic bowl, and the protrusion of the magnetic plate column is adapted to the inner hole of the magnetic upper plate.
[0011] As a further solution of the present invention, the diameter of the magnetic conductive upper plate is smaller than the inner diameter of the fixing ring, the magnetic conductive plate column is in contact with the speaker body, and the tweeter and full-range speaker have the same structure.
[0012] The utility model also provides an electronic device, including a tweeter, a full-range speaker and a shell, wherein a ventilation component is provided in the shell, and the ventilation component includes a bass reflex tube and a sealing ring, the bass reflex tube is installed in the shell, a ventilation hole is opened at the bottom of the shell, the bottom end of the bass reflex tube extends into the ventilation hole and is adapted to the ventilation hole, and the sealing ring is installed in the ventilation hole and is adapted to the bass reflex tube.
[0013] As a further solution of the present invention, the inner wall of the shell is provided with sound absorbing material, and one outer wall of the shell is provided with a first opening and a second opening, wherein the first opening is located above the second opening.
[0014] As a further solution of the present invention, the tweeter and the full-range speaker are both arranged in the tweeter and adapted to the first and second passages, and the first and second passages are provided with a first and second covering cloth respectively.
[0015] Compared with related technologies, the sound structure provided by the present invention and the electronic device using the sound structure have the following beneficial effects:
[0016] 1. The utility model can reduce magnetic leakage through the cooperation of the magnetic bowl, the magnetic upper plate, the magnetic base, the magnetic plate column and the magnet;
[0017] 2. The utility model sets the sound output direction of the full-range speaker forward. The front sound output mode has less attenuation on the sound in each frequency band, and can better reach the ears of the listener in the front. The shell outputs sound backward, and the low-frequency sound it emits is basically non-directional, which can better reach the ears of the listener. The use of a covering cloth can reduce the attenuation of sound. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 This is a schematic diagram of the structure of the sound system of the utility model;
[0020] Figure 2 This is a schematic diagram of the assembly of the housing, cover cloth 1 and cover cloth 2 in the electronic device of the present invention;
[0021] Figure 3 This is a schematic diagram of the assembly of a tweeter, a full-range speaker, a housing, a reflex port, and a sealing ring in the electronic device of the present invention;
[0022] Figure 4 The figure is a schematic diagram of the assembly of a tweeter, a full-range speaker, a bass reflex tube and a sealing ring in the electronic device of the present invention.
[0023] In the figure: 1. tweeter; 2. full-range speaker; 3. speaker body; 4. fixing ring; 5. connecting rod; 6. magnetic bowl; 7. magnetic upper plate; 8. magnetic base; 10. magnetic plate column; 11. magnet; 12. shell; 13. bass reflex tube; 14. sealing ring; 21. cloth cover 1; 22. cloth cover 2. DETAILED DESCRIPTION
[0024] Please refer to Figure 1 ,in, Figure 1 This is a schematic diagram of the structure of the sound system of the present invention. The sound system includes a tweeter 1 and a full-range speaker 2. The full-range speaker 2 consists of a speaker body 3, a fixing ring 4, two connecting rods 5, a magnetic bowl 6, a magnetic upper plate 7, a magnetic base 8, a magnetic plate column 10, and a magnet 11. The fixing ring 4 is provided on one side of the speaker body 3, and the two connecting rods 5 are fixedly mounted on the fixing ring 4. The ends of the two connecting rods 5 away from the fixing ring 4 are fixedly connected to the speaker body 3.
[0025] The fixing ring 4 is sleeved and installed on the magnetic bowl 6, the magnetic upper plate 7 is installed on the inner wall of the magnetic bowl 6, the magnetic base 8 is installed on the inner wall of the fixing ring 4, the magnetic plate column 10 is installed on the magnetic base 8, and the two magnets 11 are both installed on the magnetic plate column 10.
[0026] The magnetic base 8 and the two magnets 11 are all located in the magnetic bowl 6 , and the protrusion of the magnetic plate column 10 is adapted to the inner hole of the magnetic upper plate 7 .
[0027] The diameter of the magnetic conductive upper plate 7 is smaller than the inner diameter of the fixing ring 4 , the magnetic conductive plate column 10 is in contact with the speaker body 3 , and the tweeter 1 and the full-range speaker 2 have the same structure.
[0028] The traditional external magnetic circuit is replaced by the magnetic upper plate 7. The bottom of the fixing ring 4 can be S, the magnetic base 8 can be N, the contact surface between the magnet 11 and the magnetic plate column 10 is N, and the contact surface between the magnet 11 and the magnetic upper plate 7 is S. Therefore, based on the cooperation of the magnetic bowl 6, the magnetic upper plate 7, the magnetic base 8, the magnetic plate column 10 and the magnet 11, the leakage magnetic phenomenon can be reduced, and the heat dissipation effect can be achieved by exposing the magnetic bowl 6.
[0029] The present utility model also provides an electronic device, including a tweeter 1, a full-range speaker 2 and a housing 12. A ventilation component is provided in the housing 12, and the ventilation component includes a reflex pipe 13 and a sealing ring 14. The reflex pipe 13 is installed in the housing 12, and a vent hole is opened at the bottom of the housing 12. The bottom end of the reflex pipe 13 extends into the vent hole and adapts to the vent hole. The sealing ring 14 is installed in the vent hole and adapts to the reflex pipe 13.
[0030] The inner wall of the shell 12 is provided with sound absorbing material, and the outer wall of one side of the shell 12 is provided with a first opening and a second opening, wherein the first opening is located above the second opening.
[0031] The tweeter 1 and the full-range speaker 2 are both arranged in the tweeter 1 and adapted to the first and second passages. The first and second passages are provided with a first covering cloth 21 and a second covering cloth 22 respectively.
[0032] The sound output direction of the full-range speaker 2 is forward, and the front sound output mode has less attenuation on the sound in each frequency band, and can better reach the ears of the listener in front. The shell 12 outputs sound backward, and the low-frequency sound it emits is basically non-directional, which can better reach the ears of the listener. The use of a covering cloth can reduce the attenuation of sound.
[0033] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.
[0034] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.
Claims
1. A sound structure, characterized in that: include: A tweeter and a full-range speaker, the full-range speaker consists of a speaker body, a fixing ring, two connecting rods, a magnetic bowl, a magnetic upper plate, a magnetic base, a magnetic plate column and a magnet, the fixing ring is arranged on one side of the speaker body, the two connecting rods are fixedly mounted on the fixing ring, and the ends of the two connecting rods away from the fixing ring are fixedly connected to the speaker body; the fixing ring is sleeved and mounted on the magnetic bowl, the magnetic upper plate is mounted on the inner wall of the magnetic bowl, the magnetic base is mounted on the inner wall of the fixing ring, the magnetic plate column is mounted on the magnetic base, and the two magnets are mounted on the magnetic plate column.
2. The acoustic structure according to claim 1, characterized in that: The magnetic base and the two magnets are all located in the magnetic bowl, and the protrusion of the magnetic plate column is matched with the inner hole of the magnetic upper plate.
3. The acoustic structure according to claim 1, wherein: The diameter of the magnetic conductive upper plate is smaller than the inner diameter of the fixing ring, the magnetic conductive plate column is in contact with the speaker body, and the tweeter and the full-range speaker have the same structure.
4. An electronic device, characterized in that: The sound structure comprises the sound structure as described in claim 1, further comprising a shell, wherein a ventilation assembly is provided in the shell, wherein the ventilation assembly includes a bass reflex tube and a sealing ring, wherein the bass reflex tube is installed in the shell, a vent hole is provided at the bottom of the shell, the bottom end of the bass reflex tube extends into the vent hole and is adapted to the vent hole, and the sealing ring is installed in the vent hole and is adapted to the bass reflex tube.
5. The electronic device according to claim 4, wherein: The inner wall of the shell is provided with sound absorbing material, and the outer wall of one side of the shell is provided with a first opening and a second opening, wherein the first opening is located above the second opening.
6. The electronic device according to claim 4, wherein: The tweeter and the full-range speaker are both arranged in the tweeter and matched with the first and second passages. The first and second passages are provided with a first covering cloth and a second covering cloth respectively.
Citation Information
Patent Citations
Sound equipment structure and electronic device using the same
CN102387446B