Sound production unit

Abstract

The utility model discloses a sound production unit, which comprises a basin stand, a glue containing groove arranged on the basin stand, and a positioning groove arranged in the glue containing groove. The front cover is arranged on the basin frame, the edge of the front cover extends outwards to form a connecting part, the edge of the connecting part extends outwards and is bent to form a pin, and the pin is arranged in the positioning groove; glue is injected into the glue containing groove and solidified to form the glue, and the glue covers the surface of the side, away from the plug pins, of the connecting part and the groove opening of the glue containing groove; a first protruding block and a second protruding block corresponding to the glue containing groove and the positioning groove are respectively formed on the glue body, and a first containing groove and a second containing groove which are communicated with each other are respectively formed on the glue body corresponding to the connecting part and the pin. According to the sounding monomer provided by the utility model, the fixing effect of the front cover and the basin stand is better, the falling reliability is high, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeaker design, and in particular to a sound generating unit. Background Art

[0002] As a common electroacoustic transducer device that converts electrical energy into sound energy, the sound unit plays an indispensable role in the sound amplifier system. With the development of consumer electronic products such as mobile phones and tablets, especially large wearable electronic devices such as AR / VR, higher requirements are put forward in terms of thinness and lightness in appearance and performance. At present, the sound unit tends to be thinner and lighter. In order to prevent the deformation of the sound membrane and the middle sticker, the existing sound unit adopts the method of adding a front cover part to protect the diaphragm assembly, and the front cover and the basin frame are fixed by positioning columns, which makes the existing sound unit prone to the position column breaking after falling, causing the front cover to fall off. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a sound unit to solve the problem that the positioning column of the existing sound unit is broken and causes the front cover to fall off when the sound unit is vibrated or falls.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sound unit, comprising:

[0005] A basin frame, wherein the basin frame is provided with a glue containing groove, and a positioning groove is provided in the glue containing groove;

[0006] A front cover, the front cover is arranged on the basin frame, the edge of the front cover extends outward to form a connecting portion, the edge of the connecting portion extends outward and bends to form a pin, and the pin is arranged in the positioning groove;

[0007] The colloid is formed by injecting glue into the glue containing groove and curing the glue, and the colloid covers the surface of the connecting part away from the pin and the notch of the glue containing groove; the colloid forms a first protrusion and a second protrusion corresponding to the glue containing groove and the positioning groove respectively, and the colloid forms a first receiving groove and a second receiving groove connected to each other corresponding to the connecting part and the pin respectively.

[0008] Furthermore, the radial cross section of the plug pin is rectangular, and the cross section of the positioning slot is rectangular; wherein the length of the radial cross section of the plug pin is smaller than the length of the positioning slot.

[0009] Furthermore, the radial cross section of the plug pin is rectangular, and the cross section of the positioning groove is rectangular; wherein the plug pin is interference fit with the positioning groove in the width direction of its radial cross section.

[0010] Furthermore, two through holes penetrating the second receiving groove are respectively formed on both sides of the width direction of the radial cross section of the colloid corresponding to the pin.

[0011] Furthermore, a radial cross-sectional area of ​​the pin decreases along an end thereof away from the connecting portion.

[0012] Furthermore, a stopper is provided on the basin frame, and the stopper and the basin frame are enclosed to form the glue containing groove.

[0013] Furthermore, the basin frame is provided with a stepped groove, and the stepped groove includes the glue containing groove and the positioning groove.

[0014] Furthermore, the cross-section of the glue containing groove is triangular.

[0015] Furthermore, the basin frame is a rectangular basin frame, and the glue containing grooves are provided at the four corners of the basin frame.

[0016] Furthermore, the height of the upper surface of the connecting portion is lower than the upper surface of the front cover.

[0017] The beneficial effect of the utility model is that the pins of the front cover and the basin frame of the sound unit provided by the utility model are fixed by adhesive bonding, and the colloid covers the connection part of the front cover and the notch of the adhesive groove. When the sound unit is vibrated or dropped, the adhesive force of the colloid can prevent the front cover from being separated from the basin frame, and the colloid can absorb the stress generated during the vibration or drop to a certain extent, thereby avoiding the pins of the front cover from breaking and causing damage to the sound unit. The fixing effect of the front cover and the basin frame of the sound unit provided by the utility model is better, and its drop reliability is high and its service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the sound-generating unit of the utility model in one embodiment;

[0019] Figure 2 for Figure 1 Exploded diagram of the structure of the middle sound unit;

[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 for Figure 1 A cross-sectional view of the colloid shown in;

[0022] Figure 5 for Figure 1 A cross-sectional view of the sound unit shown in ;

[0023] Figure 6 for Figure 5 Enlarged view of part B;

[0024] Figure 7 for Figure 1 Schematically showing a cross section of the positioning groove and a radial cross section of the pin;

[0025] Figure 8 It is a schematic structural diagram of the sound-generating unit of the utility model in another embodiment;

[0026] Fig. 9 for Figure 8 Exploded diagram of the structure of the middle sound unit;

[0027] Fig.10 for Fig. 9 Enlarged view of part C in the middle;

[0028] Fig.11 In another embodiment Figure 6 Enlarged view of part B.

[0029] Description of labels:

[0030] 1. Basin frame; 11. Glue storage groove; 12. Positioning groove; 13. Stopper; 14. Step groove;

[0031] 2. front cover; 21. connection part; 22. plug pin;

[0032] 3. colloid; 31. first protrusion; 32. second protrusion; 33. first receiving groove; 34. second receiving groove; 35. through hole. DETAILED DESCRIPTION

[0033] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0034] Please refer to Figures 1 to 11 , a sound unit, comprising:

[0035] A basin frame 1, wherein a glue containing groove 11 is provided on the basin frame 1, and a positioning groove 12 is provided in the glue containing groove 11;

[0036] A front cover 2, the front cover 2 is arranged on the basin frame 1, the edge of the front cover 2 extends outward to form a connecting portion 21, one end of the connecting portion 21 away from the front cover 2 is bent to form a pin 22, and the pin 22 is arranged in the positioning groove 12;

[0037] The colloid 3 is formed by curing the injected glue in the glue containing groove 11, and the colloid 3 covers the surface of the connecting portion 21 away from the pin 22 and the notch of the glue containing groove 11; the colloid 3 forms a first protrusion 31 and a second protrusion 32 corresponding to the glue containing groove 11 and the positioning groove 12, respectively, and the colloid 3 forms a first receiving groove 33 and a second receiving groove 34 that are connected to each other corresponding to the connecting portion 21 and the pin 22, respectively.

[0038] As can be seen from the above description, the beneficial effect of the utility model is that the pins 22 of the front cover 2 and the basin frame 1 in the sound unit provided by the utility model are bonded and fixed by the colloid 3, and the colloid 3 covers the connection part 21 of the front cover 2 and the notch of the adhesive groove 11. When the sound unit is vibrated or dropped, the adhesive force of the colloid 3 can prevent the front cover 2 from being separated from the basin frame 1, and the colloid 3 can absorb the stress generated during the vibration or drop to a certain extent, thereby avoiding the pins 22 of the front cover 2 from breaking and causing damage to the sound unit. The fixing effect of the front cover 2 and the basin frame 1 of the sound unit provided by the utility model is better, and its drop reliability is high and its service life is long.

[0039] Furthermore, the radial cross section of the plug pin 22 is rectangular, and the cross section of the positioning slot 12 is rectangular; wherein the length of the radial cross section of the plug pin 22 is smaller than the length of the positioning slot 12 .

[0040] From the above description, it can be seen that there can be a certain gap between the two sides of the width direction of the pin 22 and the two sides of the width direction of the positioning groove 12 to ensure that the glue can flow into the positioning groove 12 through the gap, thereby ensuring that the cured glue can play a bonding role on the pin 22 and the positioning groove 12.

[0041] Furthermore, the radial cross section of the plug pin 22 is rectangular, and the cross section of the positioning groove 12 is rectangular; wherein the plug pin 22 is interference fit with the positioning groove 12 in the width direction of its radial cross section.

[0042] Furthermore, two through holes 35 communicating with the second receiving groove 34 are respectively formed on both sides of the width direction of the radial cross section of the colloid 3 corresponding to the pin 22 .

[0043] It can be seen from the above description that the pin 22 and the positioning groove 12 are interference-fitted, and the fixing performance between the front cover 2 of the sound unit and the basin frame 1 is good.

[0044] Furthermore, the radial cross-sectional area of ​​the pin 22 decreases along the end thereof away from the connecting portion 21 .

[0045] It can be seen from the above description that, specifically, the radial cross-sectional area of ​​the distal end of the pin 22 decreases along the end thereof away from the connecting portion 21 , which makes it easy for the pin 22 to be inserted into the positioning groove 12 .

[0046] Furthermore, the basin frame 1 is provided with a stepped groove 14 , and the stepped groove 14 includes the glue containing groove 11 and the positioning groove 12 .

[0047] Furthermore, the cross section of the glue containing groove 11 is triangular.

[0048] Furthermore, a stopper 13 is provided on the basin frame 1 , and the stopper 13 and the basin frame 1 are enclosed to form the glue containing groove 11 .

[0049] Furthermore, the basin frame 1 is a rectangular basin frame 1 , and the glue containing grooves 11 are provided at the four corners of the basin frame 1 .

[0050] It can be seen from the above description that four pins 22 are provided on the front cover 2 corresponding to the four glue containing grooves 11 , which can ensure the fixing effect between the front cover 2 and the basin frame 1 .

[0051] Furthermore, the height of the upper surface of the connecting portion 21 is lower than the upper surface of the front cover 2 .

[0052] It can be seen from the above description that the glue is not easy to get on the upper surface of the front cover 2 during the glue injection, so the front cover 2 of the sound unit and the basin frame 1 are easy to install and fix.

[0053] Embodiment 1

[0054] Please refer to Figures 1 to 7 The first embodiment of the utility model is to provide a sound unit, which includes a basin frame 1, a front cover 2 and a colloid 3, please refer to Figure 2 and Figure 3 The basin frame 1 is a rectangular basin frame 1, and glue grooves 11 are provided at the four corners of the basin frame 1. Positioning grooves 12 are provided in the glue grooves 11. The front cover 2 is provided on the basin frame 1, and the edge of the front cover 2 extends outward to form a connecting portion 21. The edge of the connecting portion 21 extends outward and bends to form a pin 22. The pin 22 is provided in the positioning groove 12. After the glue is injected into the glue groove 11 and solidified, the above-mentioned colloid 3 is formed.

[0055] In the process of glue injection, the glue covers the surface of the connecting part 21 away from the pin 22 and the notch of the glue containing groove 11. Therefore, the colloid 3 formed by the curing of the glue also covers the surface of the connecting part 21 away from the pin 22 and the notch of the glue containing groove 11; and Figure 4 and Figure 6 As shown, the colloid 3 also forms a first bump 31 and a second bump 32 corresponding to the colloid containing groove 11 and the positioning groove 12 respectively, and the colloid 3 forms a first receiving groove 33 and a second receiving groove 34 connected to each other corresponding to the connecting portion 21 and the pin 22 respectively.

[0056] like Figure 7 As shown, in this embodiment, the radial cross-section of the pin 22 is rectangular, and the cross-section of the positioning groove 12 is rectangular; wherein, the length L2 of the radial cross-section of the pin 22 is smaller than the length L1 of the positioning groove 12, and a certain gap can be provided between the two sides in the width direction of the pin 22 and the two sides in the width direction of the positioning groove 12 to ensure that the glue can flow into the positioning groove 12 through the gap, thereby ensuring that the cured glue can play a bonding role on the pin 22 and the positioning groove 12; the width W2 of the radial cross-section of the pin 22 is larger than the width W1 of the positioning groove 12, that is, the pin 22 is interference fit with the positioning groove 12 in the width direction of its radial cross-section, thereby achieving good fixing performance between the front cover 2 and the basin frame 1.

[0057] Due to the interference fit between the pin 22 and the positioning groove 12 , the colloid 3 can form two through holes 35 that penetrate the second receiving groove 34 on both sides of the width direction of the radial cross section of the pin 22 .

[0058] In order to facilitate the installation of the front cover 2 and the basin frame 1 , in this embodiment, the radial cross-sectional area of ​​the pin 22 decreases along the end thereof away from the connecting portion 21 .

[0059] Please refer to Figure 3 In this embodiment, a stepped groove 14 is provided on the basin frame 1. The stepped groove 14 includes a glue containing groove 11 and a positioning groove 12, and the cross section of the glue containing groove 11 is a triangle.

[0060] Specifically, in order to prevent glue from flowing to the upper surface of the front cover 2 during glue injection, in this embodiment, the height of the upper surface of the connecting portion 21 is lower than the upper surface of the front cover 2 .

[0061] Embodiment 2

[0062] Please refer to Figures 8 to 11 The second embodiment of the present invention further improves the structure of the glue containing groove 11 on the basis of the first embodiment. The only difference between the second embodiment and the first embodiment is that: Fig. 9 As shown, a stopper 13 is provided on the basin frame 1 , and a glue containing groove 11 is formed between the stopper 13 and the basin frame 1 .

[0063] In summary, in the sound unit provided by the utility model, the pins 22 of the front cover 2 are fixed to the basin frame 1 by adhesive bonding through the colloid 3, and the colloid 3 covers the connection part 21 of the front cover 2 and the notch of the adhesive groove 11. When the sound unit is vibrated or dropped, the adhesive force of the colloid 3 can prevent the front cover 2 from being separated from the basin frame 1, and the colloid 3 can absorb the stress generated during the vibration or drop to a certain extent, thereby preventing the pins 22 of the front cover 2 from breaking and causing damage to the sound unit. The sound unit provided by the utility model has a better fixing effect on the front cover 2 and the basin frame 1, and has high drop reliability and long service life.

[0064] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: include: A basin frame, wherein the basin frame is provided with a glue containing groove, and a positioning groove is provided in the glue containing groove; A front cover, the front cover is arranged on the basin frame, the edge of the front cover extends outward to form a connecting portion, the edge of the connecting portion extends outward and bends to form a pin, and the pin is arranged in the positioning groove; The colloid is formed by injecting glue into the glue containing groove and curing the glue, and the colloid covers the surface of the connecting part away from the pin and the notch of the glue containing groove; the colloid forms a first protrusion and a second protrusion corresponding to the glue containing groove and the positioning groove respectively, and the colloid forms a first receiving groove and a second receiving groove connected to each other corresponding to the connecting part and the pin respectively.

2. The sound generating unit according to claim 1, characterized in that: The radial cross section of the plug pin is rectangular, and the cross section of the positioning groove is rectangular; wherein the length of the radial cross section of the plug pin is smaller than the length of the positioning groove.

3. The sound generating unit according to claim 1, characterized in that: The radial cross section of the plug pin is rectangular, and the cross section of the positioning groove is rectangular; wherein the plug pin is interference-fitted with the positioning groove in the width direction of its radial cross section.

4. The sound generating unit according to claim 3, characterized in that: Two through holes penetrating the second accommodating groove are respectively formed on both sides of the width direction of the radial cross section of the colloid corresponding to the pin.

5. The sound generating unit according to claim 1, characterized in that: The radial cross-sectional area of ​​the pin decreases along an end thereof away from the connecting portion.

6. The sound generating unit according to claim 1, characterized in that: The basin frame is provided with a stepped groove, and the stepped groove includes the glue containing groove and the positioning groove.

7. The sound generating unit according to claim 6, characterized in that: The cross section of the glue containing groove is a triangle.

8. The sound generating unit according to claim 1, characterized in that: The basin frame is provided with a stopper, and the stopper and the basin frame are enclosed to form the glue containing groove.

9. The sound generating unit according to claim 1, characterized in that: The basin frame is a rectangular basin frame, and the glue containing grooves are arranged at the four corners of the rectangular basin frame.

10. The sound generating unit according to claim 1, characterized in that: The height of the upper surface of the connecting portion is lower than the upper surface of the front cover.

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