Plane loudspeaker with box body

Abstract

The utility model discloses a plane loudspeaker with a box body, and relates to the technical field of loudspeakers. The front side of the box body is provided with an opening; the basin frame is erected in the box body and faces the opening direction, and a magnet assembly is arranged on the basin frame; and the vibrating plate sound basin is erected on the front side of the basin frame, and a voice coil matched with the magnet assembly is arranged on one side, close to the basin frame, of the vibrating plate sound basin. A mounting hole is formed in the middle of the frame, and the magnet assembly is clamped in the mounting hole; the magnet assembly comprises U iron, a first magnet, a washer and a second magnet, the U iron is clamped in the mounting hole, and a cavity is formed in the front side of the U iron; the first magnet, the washer and the second magnet are sequentially installed in the cavity from back to front. The peripheral side of the vibration plate sound basin is provided with a dangling edge, and the vibration plate sound basin is erected on the basin stand and the opening side of the box body through the dangling edge in an adhesion mode to form a closed sound cavity with the box body. According to the technical scheme, the sound box has the advantages of being provided with the box body, high in sensitivity, rich in sound details and high in sound quality.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a planar loudspeaker with a box body. Background Art

[0002] Among human sensory responses, hearing and vision are the most direct. Scientists have long been committed to developing related components or system technologies to produce products with better visual or auditory performance to meet consumer needs. Currently known types of speakers are mainly divided into cone unit speakers and planar unit speakers. Among them, planar speakers have the advantages of higher sound fidelity, lower attenuation, better directivity, and smaller size compared to traditional cone unit speakers due to their small phase difference and time difference.

[0003] In current planar unit speakers, a spring and a spring fixing bracket are provided between the vibration plate cone and the cone frame. This will increase the pulling force on the vibration plate cone and increase the weight of the vibration plate cone, thereby affecting the efficiency of the speaker and reducing the sensitivity of the speaker. In a small-volume planar speaker, the sound will be tight, unnatural and loose, and the details of the music will be easily lost. Utility Model Content

[0004] The utility model aims to provide a planar speaker with a built-in box body in view of the defects and shortcomings of the prior art, which has the advantages of built-in box body, high sensitivity, rich sound details and high sound quality.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a planar speaker with a box body, comprising:

[0006] A box body, wherein the front side of the box body is provided with an opening;

[0007] A basin frame is erected in the box and faces the opening, and a magnet assembly is disposed on the basin frame; and

[0008] The vibration plate sound basin is mounted on the front side of the basin frame, and a voice coil matched with the magnet assembly is arranged on the side of the vibration plate sound basin close to the basin frame.

[0009] The utility model is further configured that a mounting hole is provided in the middle of the basin frame, and the magnet assembly is clamped in the mounting hole;

[0010] The utility model is further provided that the magnet assembly includes: a U iron, a first magnet, a washer, and a second magnet; the U iron is clamped in the mounting hole, and a cavity is provided toward the front side; the first magnet, the washer, and the second magnet are sequentially installed in the cavity from back to front.

[0011] The utility model is further arranged that the first magnet, the washer and the second magnet are arranged in the middle of the cavity, and there is a gap between the first magnet, the washer and the second magnet and the surrounding side of the cavity; one end of the voice coil is fixed on the vibration plate cone, and the other end extends toward the cavity and is inserted into the gap between the surrounding side of the cavity and the first magnet, the washer and the second magnet.

[0012] The utility model is further arranged that the magnet components are provided with two groups, which are symmetrically arranged on the left and right sides of the basin frame.

[0013] The utility model is further provided that a dust cover matching with the opening is also provided on the front side of the vibration plate sound basin.

[0014] The utility model is further arranged that the box body is a column with a trapezoidal cross section, and the height of the opening side of the box body is greater than the height of the rear side.

[0015] The utility model is further arranged that the box body is made of ABS plastic or aluminum alloy.

[0016] The utility model is further arranged that the vibration plate sound basin comprises: a diaphragm, and a hanging edge arranged on the peripheral side of the diaphragm, and the vibration plate sound basin is bonded and mounted on the front side of the basin frame through the hanging edge.

[0017] The utility model is further arranged that the vibration membrane is a plane rectangular vibration plate synthesized from a carbon fiber honeycomb.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the present invention, the flat speaker comes with a box body, which enables the flat speaker to have a better playback effect. At the same time, all components of the flat speaker are integrated inside the box body, so that the flat speaker has better integrity, more beautiful appearance and is easier to install.

[0020] 2. In the utility model, the air damping inside the box generated by the volume of the sealed box is used to adjust the matching of the suspension edge of the vibration plate cone and the air damping inside the box, and the matching of the magnetic field interaction between the voice coil and the two magnets and the washer. The entanglement of the elastic wave and the elastic wave fixing bracket is reduced, and the weight of the elastic wave and the elastic wave fixing bracket is reduced, so that the vibration plate cone is more sensitive to the response, the efficiency and sensitivity of the speaker are improved, and the details of the music can be better restored and the details of the music are enriched.

[0021] 3. In the utility model, two magnets, the first magnet and the second magnet, are arranged in the magnet assembly, so that the magnetic force of the magnet assembly is stronger, and the force between the magnet assembly and the voice coil is greater, so that the response of the sound basin is easier, and the sensitivity of the speaker is further improved, so that the speaker can better restore the details of the sound. At the same time, the voice coil is inserted in the gap between the periphery of the cavity and the first magnet, the washer, and the second magnet. One of the two magnets is arranged at the rear side of the cavity, and the other is arranged at the front side of the cavity, so that the voice coil is always in a state of magnetic saturation. When the voice coil moves up and down, it can be better acted upon by the magnet assembly, so that the sound of the planar speaker is not easily distorted, and a better user experience is obtained.

[0022] 4. There are two groups of magnet assemblies, symmetrically arranged on the left and right sides of the basin frame. There are two groups of voice coils corresponding to the magnet assemblies. The two groups of voice coils are electrically connected in parallel. When the audio signal is input, the two groups of voice coils will simultaneously pull the sound basin to vibrate and make sounds under the action of the corresponding magnet assemblies, which can effectively improve the density, sound quality and energy of the flat speaker. Two voice coils 500 in parallel increase the rated power of the speaker. Greater power can improve the dynamics and sound pressure of the speaker. Each voice coil corresponds to two magnets. The combination of two voice coils and four magnets increases the magnetic field strength, which can reduce the distortion rate of the speaker, restore the details of the music more realistically, enrich the details of the music, and achieve a pleasant and pleasant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure explosion of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure explosion from another perspective of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure explosion from another perspective of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure explosion from another perspective of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the box body of the utility model;

[0030] Figure 7 It is a structural schematic diagram of the vibration plate sound basin of the utility model.

[0031] Explanation of the reference numerals: 100, cabinet; 200, basin frame; 300, vibration plate basin; 110, opening; 400, magnet assembly; 500, voice coil; 210, mounting hole; 410, U iron; 420, first magnet; 430, washer; 440, second magnet; 411, cavity; 600, dust cover; 120, mounting step; 310, diaphragm; 320, suspension edge. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0034] This embodiment relates to a planar speaker with a built-in box, such as Figure 1-7 As shown, it includes: a box body 100, a basin frame 200 and a vibration plate cone 300.

[0035] Among them, the front side of the box 100 is provided with an opening 110, the basin frame 200 is installed inside the box 100, and the magnet assembly 400 is arranged on the basin frame 200 facing the opening 110; the vibration plate sound basin is installed on the front side of the basin frame 200, and a voice coil 500 is arranged on the side of the vibration plate sound basin 300 close to the basin frame 200. The voice coil 500 cooperates with the magnet assembly 400. When an audio signal is input to the flat speaker, the voice coil 500 interacts with the magnet assembly 400, and the voice coil 500 pulls or pushes the sound basin to vibrate to emit sound to the side of the opening 110. The flat speaker with its own box 100 can make the flat speaker have a better playback effect, and at the same time, all components of the flat speaker are integrated inside the box 100, so that the flat speaker has better integrity, more beautiful appearance and is easier to install.

[0036] The sound basin is directly mounted on the basin frame 200, and there are no other connecting parts between the basin frame 200. The sound basin itself is light, and the basin frame 200 will not affect the sound basin, making the sound basin respond more easily, the flat speaker has higher sensitivity, and the flat speaker can have more sound details and a wider sound tolerance, thereby improving the sound quality performance of the flat speaker.

[0037] Specifically in this embodiment, the basin frame 200 is mounted in the box body 100, and a mounting hole 210 is set in the middle of the basin frame 200. The magnet assembly 400 is clamped in the mounting hole 210. The magnet assembly 400 is detachably mounted with the basin frame 200 through a clamping structure, making the assembly of the flat speaker and subsequent updating and maintenance more convenient. As a preferred solution, the magnet assembly 400 includes: a U iron 410, a first magnet 420, a washer 430, and a second magnet 440, wherein the U iron 410 is clamped in the mounting hole 210, and the U iron 410 is provided with a cavity 411 facing the front side, that is, facing the sound basin side; the first magnet 420, the washer 430, and the second magnet 440 are installed in the cavity 411 from back to front in sequence, and the first magnet 420, the washer 430, the second magnet 440 and the U iron 410 are installed through the magnetic force between them, without the need for glue or other fixings, the structure is simpler, and the production cost is saved; at the same time, it is also convenient for the installation and disassembly between the U iron 410 and the first magnet 420, the washer 430, and the second magnet 440. Since the magnet assembly 400 includes the first magnet 420 and the second magnet 440, the magnetic force of the magnet assembly 400 is stronger, and the force between the magnet group and the voice coil 500 is greater, making the response of the sound cone easier, further improving the sensitivity of the speaker, and allowing the speaker to better restore the details of the sound.

[0038] In this embodiment, the first magnet 420, the washer 430, and the second magnet 440 are arranged in the middle of the cavity 411 of the U iron 410, and there is a gap between the cavity 411 and the surrounding side. One end of the voice coil 500 is fixed on the vibration plate cone, and the other end extends toward the cavity 411 and is inserted into the gap between the surrounding side of the cavity 411 and the first magnet 420, the washer 430, and the second magnet 440. The voice coil 500 can move freely up and down in the gap without being restrained by other parts, thereby ensuring the flexibility of the cone. At the same time, the voice coil 500 is inserted in the gap between the periphery of the cavity 411 and the first magnet 420, the washer 430, and the second magnet 440. One of the two magnets is set at the rear side of the cavity 411, and the other is set at the front side of the cavity 411, so that the voice coil 500 is always in a state of magnetic saturation. When the voice coil 500 moves up and down, it can be better acted upon by the magnet assembly 400, so that the sound of the planar speaker is not easily distorted, and a better user experience is obtained.

[0039] As a preferred solution, two groups of magnet assemblies 400 are provided, symmetrically arranged on the left and right sides of the basin frame 200. Two groups of voice coils 500 are provided corresponding to the magnet assemblies 400, and the two groups of voice coils 500 are electrically connected in parallel. When an audio signal is input, the two groups of voice coils 500 will simultaneously pull the sound basin to vibrate and sound under the action of the corresponding magnet assemblies 400, which can effectively improve the density, sound quality and energy sense of the planar speaker. Two voice coils are fixed in parallel on the vibration plate cone 300. Each voice coil is composed of a first magnet 420, a washer 430, a second magnet 440 and a U iron 410. The powerful magnetic field force formed by the combination of the first magnet 420, the washer 430, the second magnet 440 and the U iron 410 drives the vibration plate cone 300 to work together. The two voice coils 500 are connected in parallel to increase the rated power of the speaker. The greater power can improve the dynamics and sound pressure of the speaker. Each voice coil 500 corresponds to two magnets. The combination of two voice coils 500 and four magnets improves the magnetic field strength, which can reduce the distortion rate of the speaker, more realistically restore the details of the music, enrich the details of the music, and achieve a pleasant and pleasant music effect.

[0040] In this embodiment, the flat speaker is also provided with a dust cover 600, which is arranged on the front side of the vibration plate sound basin 300 and cooperates with the opening 110 of the box 100 to achieve the installation of the dust cover 600. The dust cover 600 can prevent foreign objects from damaging the sound basin and causing the speaker to malfunction, and can also reduce the dust adhering to the sound basin, resulting in an increase in the weight of the sound basin, which affects the flexibility of the sound basin and reduces the sensitivity of the speaker. As a preferred solution, an installation step 120 for installing the dust cover 600 is provided on the inner side of the box 100, and a certain distance is set between the installation step 120 and the sound basin to prevent the dust cover 600 from interfering with the movement of the sound basin and affecting the playback effect of the speaker.

[0041] In this embodiment, the box 100 is a column with a trapezoidal cross section, and the height of one side of the opening 110 of the box 100 is greater than the height of the rear side of the box 100, so that the sound emitted by the speaker can be better diffused toward the side of the opening 110, the speaker has better directivity, and the use experience of the speaker is improved. As a preferred solution, the box 100 is made of ABS plastic or aluminum alloy in one piece to avoid abnormal noise from the box and ensure the sound quality of the speaker.

[0042] In this embodiment, the vibration plate cone 300 includes: a diaphragm 310, and a suspension 320 arranged on the side of the diaphragm 310. The diaphragm 310 is the main sound-generating part of the speaker. The suspension 320 is arranged on the side of the diaphragm 310. The diaphragm 310 is bonded to the front side of the basin frame 200 through the suspension 320, so that the vibration plate cone 300 is arranged on the side of the opening 110 of the box 100, and forms a closed sound cavity with the box 100; at the same time, the setting of the suspension 320 makes the diaphragm 310 have a larger suspension space and vibration flexibility, so that the speaker has better sensitivity and loudness. As a preferred solution, the diaphragm 310 is a flat rectangular diaphragm synthesized by carbon fiber honeycomb, so that the diaphragm 310 has the characteristics of light weight and high rigidity, and can provide more accurate, faster response speed and better audio resolution. At the same time, it has excellent performance in waterproofing, moisture-proofing and corrosion-proofing, and improves the durability of the speaker. The suspension edge 320 is configured as a rubber suspension edge 320, which has greater elasticity, so that the flexibility of the diaphragm 310 is further improved. Of course, in other embodiments, the diaphragm 310 can also be configured as other materials or configured in other shapes to ensure the sound effect of the speaker.

[0043] In this embodiment, the air damping in the box 100 generated by the volume of the sealed box 100 is used, and the vibration plate cone 300 is arranged on the side of the opening 110 of the box 100 to form a closed sound cavity with the box 100. The matching of the hanging edge 320 of the vibration plate cone 300 and the air damping in the box 100, the matching of the magnetic field interaction between the voice coil 500 and the two magnets and the washer 430 are adjusted, and the entanglement of the elastic wave and the elastic wave fixing bracket and the weight of the elastic wave and the elastic wave fixing bracket are reduced, so that the vibration plate cone 300 is more sensitive, the efficiency and sensitivity of the speaker are improved, and the details of the music can be better restored and the detailed expression of the music is enriched;

[0044] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A planar speaker with a built-in box, characterized in that: include: A box body (100), wherein the front side of the box body (100) is provided with an opening (110); A basin frame (200) is erected in the box (100) and faces the opening (110), and a magnet assembly (400) is arranged on the basin frame (200); as well as The vibration plate sound basin (300) is mounted on the front side of the basin frame (200), and a voice coil (500) matching with the magnet assembly (400) is arranged on one side of the vibration plate sound basin (300) close to the basin frame (200).

2. The planar speaker with its own box according to claim 1, characterized in that: A mounting hole (210) is provided in the middle of the basin frame (200), and the magnet assembly (400) is clamped in the mounting hole (210).

3. The planar speaker with its own box according to claim 2, characterized in that: The magnet assembly (400) comprises: a U iron (410), a first magnet (420), a washer (430), and a second magnet (440); the U iron (410) is clamped in the mounting hole (210), and a cavity (411) is provided toward the front; the first magnet (420), the washer (430), and the second magnet (440) are sequentially mounted in the cavity (411) from back to front.

4. The planar speaker with a built-in box according to claim 3, characterized in that: The first magnet (420), the washer (430), and the second magnet (440) are arranged in the middle of the cavity (411), and there is a gap between them and the surrounding side of the cavity (411); one end of the voice coil (500) is fixed on the vibration plate cone, and the other end extends toward the cavity (411) and is inserted into the gap between the surrounding side of the cavity (411) and the first magnet (420), the washer (430), and the second magnet (440).

5. The planar speaker with a built-in box according to claim 1, characterized in that: The magnet components (400) are provided in two groups and are symmetrically arranged on the left and right sides of the basin frame (200).

6. The planar speaker with a built-in box according to claim 1, characterized in that: A dust cover (600) matching the opening (110) is also provided on the front side of the vibration plate cone.

7. The planar speaker with a built-in box according to claim 1, characterized in that: The box body (100) is a column with a trapezoidal cross section, and the height of the box body (100) on the side of the opening (110) is greater than the height of the rear side.

8. The planar speaker with a built-in box according to claim 1, characterized in that: The box body (100) is made of ABS plastic or aluminum alloy.

9. The planar speaker with a built-in box according to claim 1, characterized in that: The vibration plate sound basin (300) comprises: a diaphragm (310) and a hanging edge (320) arranged on the peripheral side of the diaphragm (310); the vibration plate sound basin (300) is bonded and mounted on the front side of the basin frame (200) via the hanging edge (320).

10. The planar speaker with its own box according to claim 9, characterized in that: The diaphragm (310) is a planar rectangular diaphragm made of carbon fiber honeycomb.

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