Skeleton, sound production monomer and electronic device

Abstract

The utility model discloses a kind of framework, sound-emitting monomer and electronic equipment, including framework body and the support arm connected with framework body, support arm includes first extension, bending part and second extension, first extension is connected with framework body, the extension direction of first extension and the extension direction of second extension is set with angle, support arm is provided with the reinforcing rib sequentially distributed in first extension, bending part and second extension. According to the framework of the utility model, reinforcing rib design is carried out on support arm, increases the strength of framework under the premise that space occupation volume does not need to be enlarged, can promote the reliability margin of product, effectively improve the service life of product;Only need to carry out special design processing to framework on structure, simple and convenient, change cost is low, and improvement effect is good;Sound-emitting monomer and electronic equipment can promote the reliability margin of product, effectively improve the service life of product due to the adoption of the above framework.

Description

Technical Field

[0001] This utility model relates to the field of acoustic and electronic technology, and in particular to a skeleton, a sound-generating unit based on the skeleton, and an electronic device. Background Technology

[0002] In recent years, with the development of mobile phones, the volume required for products has been increasing, and the requirements for speaker amplitude have become higher. Given the limitations of product structure and size, improving product lifespan and reliability margins has become crucial.

[0003] For sound-generating devices with a frame design, the frame design cannot occupy too much internal space of the product, especially for products with a high degree of product integration, where the space utilization of the frame is very limited. Therefore, the frame is generally designed to be relatively thin. A thin frame will seriously affect the reliability and service life of the product. Therefore, how to design a high-performance frame within a limited space structure is a very important technical issue at present. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a skeleton.

[0005] To solve the above-mentioned technical problems, the first technical solution of this utility model is: a frame, including a frame body and a support arm connected to the frame body, wherein the support arm includes a first extension, a bent portion and a second extension, the first extension is connected to the frame body, the bent portion is connected to the first extension and the second extension respectively, the extension direction of the first extension and the extension direction of the second extension are set at an angle, and the support arm is provided with reinforcing ribs sequentially distributed on the first extension, the bent portion and the second extension.

[0006] According to some embodiments of the present invention, the support arm is provided with at least two spaced reinforcing ribs, the support arm has a first surface and a second surface disposed opposite to each other, and the reinforcing ribs are recessed from the first surface to the second surface so that a groove is formed between two adjacent reinforcing ribs.

[0007] In some embodiments of this utility model, the support arm has a first surface and a second surface disposed opposite to each other, and the reinforcing rib includes a rib that protrudes relative to the first surface and / or the second surface.

[0008] According to some embodiments of the present invention, the skeleton body is formed into a square structure, and there are two support arms, which are respectively located at a pair of opposite corners of the skeleton body; or, there are four support arms, which are respectively located at the four corners of the skeleton body.

[0009] In some embodiments of this utility model, the support arm and the frame body are integrally stamped structures.

[0010] The beneficial effects of this utility model are as follows:

[0011] The skeleton described in this utility model includes a skeleton body and a support arm connected to the skeleton body. The support arm includes a first extension, a bent portion, and a second extension. The first extension is connected to the skeleton body, and the bent portion is connected to both the first and second extensions. The extension directions of the first and second extensions are set at an angle. The support arm is provided with reinforcing ribs sequentially distributed on the first extension, the bent portion, and the second extension. By designing reinforcing ribs on the support arm of the skeleton, the strength of the skeleton is increased without increasing the space occupied, thereby improving the reliability margin of the product and effectively extending its service life. The above improvement only requires special design treatment of the skeleton, which is simple, convenient, low in modification cost, and has good improvement effect.

[0012] The second technical solution of this utility model is: a sound-generating unit, including a shell, a magnetic circuit system and a vibration system, wherein the vibration system includes a diaphragm, a voice coil, a skeleton as described above and a centering component;

[0013] The magnetic circuit system includes a magnetic gap, one end of the voice coil is correspondingly positioned to the magnetic gap, the other end of the voice coil is connected to one side of the frame body, the side of the frame body away from the voice coil is connected to the diaphragm, and the centering assembly includes a centering support plate, one end of the centering support plate is connected to the housing, and the other end of the centering support plate is connected to the end of the support arm away from the frame body.

[0014] According to some embodiments of the present invention, the support arm has a first surface and a second surface disposed opposite to each other, the reinforcing rib is recessed from the first surface to the second surface so that a groove is formed between two adjacent reinforcing ribs, the voice coil has a lead wire portion, the lead wire portion is routed along the extension direction of the support arm and is located in the groove.

[0015] In some embodiments of this utility model, the centering support includes a fixed part and a cantilever part. The fixed part is fixedly connected to the housing. One end of the cantilever part is connected to the fixed part, and the other end of the cantilever part is connected to the support arm. Along the vibration direction of the vibration system, a portion of the cantilever part is opposite to the housing to form a first cantilever. The housing is provided with an avoidance groove that is opposite to the first cantilever.

[0016] According to some embodiments of the present invention, the magnetic circuit system includes a central magnetic part and a side magnetic part arranged around the outer periphery of the central magnetic part. A magnetic gap is provided between the central magnetic part and the side magnetic part. The side magnetic part is formed into a square structure and has four corners. A centering support is provided on the outside of the corresponding corner. The second extension extends to the outside of the corner and is connected to the centering support.

[0017] The beneficial effects of this utility model are as follows:

[0018] The sound-generating unit of this utility model includes a housing, a magnetic circuit system, and a vibration system. The vibration system includes a diaphragm, a voice coil, a frame as described above, and a centering assembly. One end of the voice coil is connected to one side of the frame body, and the side of the frame body away from the voice coil is connected to the diaphragm. One end of the centering support of the centering assembly is connected to the housing, and the other end is connected to the end of the support arm away from the frame body. According to the sound-generating unit of this utility model, the frame is connected to the voice coil, diaphragm, and centering support. Due to the reinforcing rib design of the frame, the strength of the frame is greatly improved, which can improve the operational stability of the vibration system and extend the service life of the sound-generating unit.

[0019] The third technical solution of this utility model is: an electronic device, including the aforementioned sound-generating unit. Attached Figure Description

[0020] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0021] Figure 1 This is a schematic diagram of the skeleton structure of an embodiment of this utility model;

[0022] Figure 2 This is the assembly of the skeleton and voice coil in this embodiment of the utility model. Figure 1 ;

[0023] Figure 3 This is the assembly of the skeleton and voice coil in this embodiment of the utility model. Figure 2 ;

[0024] Figure 4 This is a partial structural schematic diagram of the sound-generating unit according to an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the sound-emitting unit according to an embodiment of the present invention;

[0026] Figure 6 This is an exploded view of the sound-emitting unit according to an embodiment of this utility model;

[0027] Figure 7 This is a structural distribution diagram of the edge magnet of the sound-emitting unit according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the sound-generating unit centering support sheet according to an embodiment of the present invention;

[0029] Figure 9 This is a side view of the sound-generating unit housing and centering support plate according to an embodiment of the present invention;

[0030] In the diagram: 1-Skeleton body; 2-Support arm; 21-First extension; 22-Bending part; 23-Second extension; 24-Reinforcing rib; 25-Wire groove; 31-Shell; 32-Diaphragm; 33-Reinforcing part; 34-Frame; 41-Voice coil; 42-Lead wire part; 5-Centering support; 51-Fixing part; 52-First cantilever; 53-Allowing groove; 54-Second cantilever; 55-Transition part; 61-Center magnet; 62-Center magnetic guide plate; 63-Side magnet; 64-Side magnetic guide plate; 65-Magnetic gap; 7-Center magnet; 8-Side magnet; 81-First side magnet; 811-First magnet part; 812-Second magnet part; 82-Second side magnet part; 821-Third magnet part; 822-Fourth magnet part; 83-Allowing gap; 9-Corner. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0032] like Figures 1 to 3 As shown, the skeleton according to the first aspect of the present invention includes a skeleton body 1 and a support arm 2 connected to the skeleton body 1. The support arm 2 includes a first extension 21, a bent portion 22 and a second extension 23. The first extension 21 is connected to the skeleton body 1. The bent portion 22 is connected to the first extension 21 and the second extension 23 respectively. The extension direction of the first extension 21 is set at an angle to the extension direction of the second extension 23. The support arm 2 is provided with reinforcing ribs 24 that are sequentially distributed on the first extension 21, the bent portion 22 and the second extension 23 to enhance the strength of the support arm 2.

[0033] The design of reinforcing ribs 24 on the support arm 2 of the frame increases the structural strength of the frame without increasing the space occupied by the frame, thereby improving the reliability margin of the product and effectively extending the service life of the product. The above improvement only requires special design treatment of the frame, which is simple to operate, has low modification cost, and has good improvement effect.

[0034] In one specific embodiment, the support arm 2 is provided with at least two spaced reinforcing ribs 24. The support arm 2 has a first surface and a second surface that are disposed opposite to each other. The reinforcing ribs 24 are recessed from the first surface to the second surface so that a groove 25 is formed between two adjacent reinforcing ribs 24.

[0035] The width of the wire groove 25 can be designed according to the wire diameter and the equipment manufacturing process capability. The wire groove 25 is formed by reinforcing ribs 24 on the support arm 2 to protect and guide the circuit wires of the product. In the wire groove 25, the wires can be wrapped with glue to effectively reduce the risk of wire breakage and improve the reliability margin and service life of the product.

[0036] In one specific embodiment, the support arm 2 has a first surface and a second surface disposed opposite to each other, and the reinforcing rib 24 includes a rib protruding relative to the first surface and / or the second surface. The reinforcing rib 24 can protrude towards either the first surface or the second surface of the support arm 2, both of which can achieve the technical effect of improving the strength of the support arm 2.

[0037] The width of the reinforcing rib 24 can be set according to the width of the frame support arm 2. The number of reinforcing ribs 24 can be one or more. When two reinforcing ribs 24 are arranged at intervals and the reinforcing ribs 24 are recessed from the first surface to the second surface, a groove 25 is formed on the support arm 2. When three or more reinforcing ribs 24 are arranged, multiple grooves 25 are formed. The form of the reinforcing rib 24 can be concave or convex, and the shape can be triangular or square. The shape is not limited and can be selected as needed.

[0038] In one specific embodiment, the skeleton body 1 is formed into a square structure, and there are two support arms 2, which are respectively located at a pair of opposite corners of the skeleton body 1; or, there are four support arms 2, which are respectively located at the four corners of the skeleton body 1.

[0039] Specifically, the frame body 1 adopts a square structure with four corners. Because the frame body 1 has bends at the four corners, the bending points of the frame body 1 experience greater stress when the product vibrates. Therefore, the four corner bends of the frame body 1 are reinforced by installing support arms 2 at the locations of the frame body 1 that are subject to product vibration and swaying. Reinforcing ribs 24 are designed on the support arms 2, which can effectively improve the strength of the frame, enhance its vibration resistance, and extend its service life.

[0040] In one specific embodiment, the support arm 2 and the frame body 1 are integrally stamped structures. The integral stamping process reliably improves the overall strength of the frame.

[0041] like Figures 4 to 9 As shown, the sound-generating unit according to the second aspect of the present invention includes a housing 31, a magnetic circuit system and a vibration system, wherein the vibration system includes a diaphragm 32, a voice coil 41, a frame as described above and a centering component;

[0042] The magnetic circuit system includes a magnetic gap 65. One end of the voice coil 41 is correspondingly positioned to the magnetic gap 65, and the other end of the voice coil 41 is connected to one side of the frame body 1. The side of the frame body 1 away from the voice coil 41 is connected to the diaphragm 32. The centering assembly includes a centering support 5. One end of the centering support 5 is connected to the housing 31, and the other end of the centering support 5 is connected to the end of the support arm 2 away from the frame body 1.

[0043] Within this sound-generating unit, the frame is connected to the voice coil 41, the diaphragm 32, and the centering support 5. A reinforcing part 33 is provided between the diaphragm 32 and the frame. Specifically, the reinforcing part 33 is located on the inner side of the diaphragm 32 and is connected to the diaphragm 32. The side of the frame body 1 away from the voice coil 41 is connected to the reinforcing part 13. Based on the above structure, since the supporting arm 2 of the frame is provided with reinforcing ribs 24, the strength of the frame is greatly improved. When the vibration system of the sound-generating unit is working, the frame can withstand stronger vibrations and has a longer service life. Moreover, this can also improve the centering effect of the centering support 5, making the vibration of the vibration system more stable.

[0044] In one specific embodiment, the support arm 2 has a first surface and a second surface arranged opposite to each other, and the reinforcing rib 24 is recessed from the first surface to the second surface so that a wire groove 25 is formed between two adjacent reinforcing ribs 24. The voice coil 41 has a lead wire portion 42, which is wired along the extension direction of the support arm 2 and located in the wire groove 25.

[0045] By placing the lead portion 42 of the voice coil 41 inside the wire groove 25 and wrapping the lead with adhesive, the risk of lead breakage can be effectively reduced, and the reliability margin and service life of the product can be improved.

[0046] In one specific embodiment, the centering support 5 includes a fixed part 51 and a cantilever part. The fixed part 51 is fixedly connected to the housing 31. One end of the cantilever part is connected to the fixed part 51, and the other end of the cantilever part is connected to the support arm 2. Along the vibration direction of the vibration system, a portion of the cantilever part is opposite to the housing 31 to form a first cantilever 52. The housing 31 is provided with a clearance groove 53 opposite to the first cantilever 52. It can be understood that by setting the first cantilever 52 to be opposite to the housing 31 along the vibration direction of the vibration system, the cantilever length of the centering support 5 can be increased, thereby effectively preventing problems such as breakage of the centering support 5 due to insufficient deformation.

[0047] In a specific example of this utility model, the centering support 5 includes a fixed part 51 and a cantilever part. The cantilever part includes a first cantilever 52 and a second cantilever 54 connected together. The first cantilever 52 has a transition part 55 at one end near the fixed part 51. Along the direction from the fixed part 31 to the cantilever part, the width of at least part of the transition part 55 gradually decreases to reduce stress concentration. The fixed part 51 is fixedly connected to the housing 31. The second cantilever 54 is connected to the lead wire part 42. Along the vibration direction of the vibration system, the first cantilever 52 is opposite to the housing 31. The housing 31 is provided with a relief groove 53 that is opposite to the first cantilever 52.

[0048] In one specific embodiment, the magnetic circuit system includes a central magnetic part 7 and a side magnetic part 8 arranged around the outer periphery of the central magnetic part 7. A magnetic gap 65 is provided between the central magnetic part 7 and the side magnetic part 8. The side magnetic part 8 is formed into a square structure and has four corner parts 9. The centering support plate 5 is provided on the outside of the corresponding corner part 9. The second extension part 23 extends to the outside of the corner part 9 and is connected to the centering support plate 5.

[0049] In the magnetic circuit system, the square-structured side magnetic part 8, together with the centering support plate 5, is located outside the corner 9 of the side magnetic part 8, so that the centering support plate 5 does not occupy the set volume of the magnetic circuit system, thereby maximizing the design volume of the magnetic circuit system of the product, thereby increasing the product BL value of the sound-generating unit, and thus improving the sound-generating sensitivity of the sound-generating unit.

[0050] In one specific embodiment, the side magnetic part 8 includes a first connecting edge and a second connecting edge. The side magnetic part 8 includes a first side magnetic part 81 located on the first connecting edge and a second side magnetic part 82 located on the second connecting edge. The first side magnetic part 81 and the second side magnetic part 82 are adjacent to each other and form a clearance gap 83. Along the vibration direction of the vibration system, the clearance gap 83 is opposite to the lead wire part 42.

[0051] The first side magnetic portion 81 includes a first magnet portion 811 and a second magnet portion 812, both extending along the first connecting edge. The second magnet portion 812 is located on the side of the first magnet portion 811 away from the central magnet portion 7, and the extension length of the second magnet portion 812 is less than the extension length of the first magnet portion 811. The ends of the second magnet portion 812 do not exceed the ends of the first magnet portion 811. The second side magnetic portion 82 includes a third magnet portion 821 and a fourth magnet portion 822, both extending along the second connecting edge. The fourth magnet portion 822 is located on the side of the third magnet portion 821 away from the central magnet portion 7, and the extension length of the fourth magnet portion 822 is less than the extension length of the third magnet portion 821. The ends of the fourth magnet portion 822 do not exceed the ends of the third magnet portion 821. The first magnet portion 811 and the third magnet portion 821 are spaced apart to form the clearance gap 83.

[0052] The end of the first magnet part 811 and the end of the third magnet part 821 cooperate to form a first receiving space for accommodating the second cantilever 54. The end of the fourth magnet part 822 and the third magnet part 821 cooperate to form a second receiving space for accommodating the fixing part 51 and the first cantilever 52. Through the ingenious arrangement of the structure of the first side magnet part 81 and the second side magnet part 82, a receiving space for the centering support piece 5 can be formed on the outside of the corner 9 of the side magnet part 8. At the same time, the ring design of the side magnet part 8 can be realized, thereby improving the BL value of the product.

[0053] And / or, the first magnet portion 811 and the second magnet portion 812 are formed as an integral structure;

[0054] And / or, the third magnet portion 821 and the fourth magnet portion 822 are formed as an integral structure.

[0055] The integrated structure of the first magnet part 811, the second magnet part 812, the third magnet part 821, and the fourth magnet part 822 can reduce assembly steps and improve efficiency.

[0056] Alternatively, the first magnet part 811 and the second magnet part 812 can also be separate structures, with the two parts bonded together by adhesive; or the third magnet part 821 and the fourth magnet part 822 can also be separate structures, with the two parts bonded together by adhesive.

[0057] The central magnetic section 7 includes a central magnet 61 and a central magnetic guide plate 62, and a frame 34 is installed on the side of the magnetic circuit system away from the voice coil 41.

[0058] The side magnetic section 87 in the above-mentioned magnetic circuit system makes full use of the limited space inside the housing 31. Through optimized design, the optimal magnetic circuit volume is obtained, which improves the overall BL value of the product and enhances the performance of the sound-generating unit.

[0059] An electronic device according to a third aspect of the present invention includes the aforementioned sound-generating unit.

[0060] The speaker unit in this electronic device features a reinforced frame with 24 ribs. This design increases the frame's strength within a limited space, allowing it to withstand stronger vibrations. This improves the speaker unit's performance and reliability, ultimately enhancing the electronic device's performance and lifespan. Optionally, the electronic device can be a mobile phone, tablet, television, headphones, smart wearable device, etc.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A skeleton, characterized in that, The device includes a frame body and a support arm connected to the frame body. The support arm includes a first extension, a bent portion and a second extension. The first extension is connected to the frame body. The bent portion is connected to the first extension and the second extension respectively. The extension direction of the first extension and the extension direction of the second extension are set at an angle. The support arm is provided with reinforcing ribs that are sequentially distributed on the first extension, the bent portion and the second extension.

2. The skeleton according to claim 1, characterized in that, The support arm is provided with at least two spaced reinforcing ribs. The support arm has a first surface and a second surface that are disposed opposite to each other. The reinforcing ribs are recessed from the first surface to the second surface so that a groove is formed between two adjacent reinforcing ribs.

3. The skeleton according to claim 1, characterized in that, The support arm has a first surface and a second surface disposed opposite to each other, and the reinforcing rib includes a rib that protrudes relative to the first surface and / or the second surface.

4. The skeleton according to claim 1, characterized in that, The skeleton body is formed into a square structure, and there are two support arms, which are respectively located at a pair of opposite corners of the skeleton body; or, there are four support arms, which are respectively located at the four corners of the skeleton body.

5. The skeleton according to claim 1, characterized in that, The support arm and the frame body are integrally stamped structures.

6. A sound-generating monomer, characterized in that, It includes a housing, a magnetic circuit system, and a vibration system, wherein the vibration system includes a diaphragm, a voice coil, a frame as described in any one of claims 1-5, and a centering assembly; The magnetic circuit system includes a magnetic gap, one end of the voice coil is correspondingly positioned to the magnetic gap, the other end of the voice coil is connected to one side of the frame body, the side of the frame body away from the voice coil is connected to the diaphragm, and the centering assembly includes a centering support plate, one end of the centering support plate is connected to the housing, and the other end of the centering support plate is connected to the end of the support arm away from the frame body.

7. The sound-generating unit according to claim 6, characterized in that, The support arm has a first surface and a second surface disposed opposite to each other. The reinforcing ribs are recessed from the first surface to the second surface to form a groove between two adjacent reinforcing ribs. The voice coil has a lead wire portion, which is routed along the extension direction of the support arm and located in the groove.

8. The sound-generating unit according to claim 6, characterized in that, The centering support includes a fixed part and a cantilever part. The fixed part is fixedly connected to the housing. One end of the cantilever part is connected to the fixed part, and the other end of the cantilever part is connected to the support arm. Along the vibration direction of the vibration system, a portion of the cantilever part is opposite to the housing to form a first cantilever. The housing is provided with a clearance groove that is opposite to the first cantilever.

9. The sound-generating unit according to claim 6, characterized in that, The magnetic circuit system includes a central magnetic part and a side magnetic part surrounding the central magnetic part. A magnetic gap is provided between the central magnetic part and the side magnetic part. The side magnetic part is formed into a square structure and has four corners. A centering support is provided on the outside of the corresponding corner. The second extension extends to the outside of the corner and is connected to the centering support.

10. An electronic device, characterized in that, The sound-generating monomer includes any one of claims 6-9.

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