Loudspeaker shell and loudspeaker

Abstract

The utility model belongs to the technical field of loudspeakers, and discloses a loudspeaker housing and a loudspeaker, the loudspeaker housing comprises a first housing and a second housing, the first housing comprises a first bottom plate, a first wall plate and a first boss, the first wall plate and the first boss are enclosed on the first bottom plate to form a first accommodating groove, and the second bottom plate is provided with a second accommodating groove. The first shell comprises a first bottom plate, a first wall plate and a first boss, the second shell comprises a second bottom plate, a second wall plate and a second boss, the second wall plate and the second boss define a second containing groove on the second bottom plate, the second boss is provided with a communicating groove, the first boss and the communicating groove define a pressure relief hole, at least part of the pressure relief hole extends in an arc line or a broken line, and the loudspeaker comprises the loudspeaker shell. According to the utility model, the first boss and the communicating groove are enclosed to form the pressure relief hole, so that the pressure relief hole is not limited by the thickness of the side wall of the loudspeaker shell, the processing cost of the pressure relief hole is lower, the size adjustment is more convenient, the acoustic resistance adjustment range at the pressure relief hole is effectively improved, and the acoustic resistance adjustment at the pressure relief hole is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a loudspeaker housing and a loudspeaker. Background Technology

[0002] A loudspeaker is an acoustic component in electronic devices used to convert electrical signals into sound signals. A loudspeaker consists of a loudspeaker housing and a loudspeaker driver housed within the housing. The loudspeaker driver divides the inner cavity of the loudspeaker housing into a front acoustic cavity and a rear acoustic cavity. The front acoustic cavity is connected to the outside. When the loudspeaker driver is working, it generates a lot of heat, which causes the gas in the rear acoustic cavity to expand and the air pressure to increase. This results in an imbalance of air pressure between the front and rear acoustic cavities, causing the diaphragm of the loudspeaker driver to vibrate asymmetrically, which affects the normal operation of the loudspeaker driver.

[0003] To balance the air pressure in the front and rear acoustic cavities and maintain the symmetry of diaphragm vibration, pressure relief holes are typically made in the side wall of the speaker housing to ensure the rear acoustic cavity is connected to the outside. Conventional pressure relief holes are straight-lined hole structures with low acoustic resistance. They require additional damping structures such as sound guides or sound meshes to increase acoustic resistance, increasing manufacturing costs and reducing structural reliability. To address these issues, existing technologies use a tortuous hole structure for the pressure relief holes in the side wall of the speaker housing, which effectively increases acoustic resistance without the need for additional damping structures. However, the length of this type of pressure relief hole is limited by the thickness of the speaker housing side wall, limiting the range of acoustic resistance adjustment. Utility Model Content

[0004] The purpose of this invention is to provide a speaker housing and speaker that can effectively increase the range of acoustic impedance adjustment at the pressure relief hole without being limited by the thickness of the speaker housing sidewall.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Speaker housing, including:

[0007] A first housing, the first housing includes a first base plate, a first wall plate and a first boss, the first wall plate and the first boss are arranged on the first base plate to form a first receiving groove;

[0008] The second housing includes a second base plate, a second wall plate, and a second boss. The second wall plate and the second boss form a second receiving groove on the second base plate. The second boss is provided with a communicating groove. The first receiving groove and the second receiving groove are assembled to form a receiving cavity. The first boss and the communicating groove form a pressure relief hole. At least a portion of the pressure relief hole extends in an arc or a zigzag pattern. The receiving cavity is connected to the outside through the pressure relief hole.

[0009] Preferably, the first boss includes an insertion part, which is inserted into the communicating groove and spaced apart from the bottom of the communicating groove.

[0010] Preferably, the first boss further includes a support portion, which abuts against the second boss, and the insertion portion is disposed at one end of the support portion facing the second boss.

[0011] Preferably, the insertion part includes a first step, the first step and the connecting groove form a first channel, the support part and the connecting groove form a second channel, the axes of the first channel and the second channel are parallel to each other and spaced apart, the end of the first channel opposite to the second channel is connected to the receiving cavity, and the end of the second channel opposite to the first channel is connected to the outside.

[0012] Preferably, the insertion part includes a second step, the second step and the connecting groove surround to form an intermediate channel, the axes of the first channel, the intermediate channel and the second channel are parallel to each other and are arranged at intervals in sequence, and the first channel is connected to the second channel through the intermediate channel.

[0013] Preferably, the first channel, the intermediate channel, and the second channel are sequentially positioned close to the first base plate.

[0014] Preferably, the lengths of the first channel, the intermediate channel, and the second channel increase sequentially.

[0015] Preferably, the first wall panel is provided with an inner protruding strip, and the second wall panel is provided with an outer protruding strip. The outer protruding strip is sleeved on the outside of the inner protruding strip, and the inner protruding strip abuts against the second wall panel and the first wall panel.

[0016] Preferably, one of the first base plate and the other of the second base plate is provided with an insertion rod and an insertion seat, and the insertion rod is inserted into the insertion seat.

[0017] A loudspeaker includes a loudspeaker unit and the aforementioned loudspeaker housing, wherein the loudspeaker unit is disposed within the accommodating cavity.

[0018] The beneficial effects of this utility model are:

[0019] A first boss is provided on the first housing, and a second boss is provided on the second housing. A pressure relief hole is formed by the connecting grooves on the first and second bosses. This design is not limited by the thickness of the speaker housing sidewall. The structural dimensions of the first and second bosses are more flexible, resulting in lower processing costs and easier size adjustment of the pressure relief hole. This effectively increases the range of acoustic impedance adjustment at the pressure relief hole and makes acoustic impedance adjustment simpler and more convenient. As a result, it can be adapted to a wider variety of speaker units, avoids the imbalance of internal and external air pressure during speaker operation, improves sound quality, enhances heat dissipation, and extends service life. At least part of the pressure relief hole extends in an arc or zigzag pattern, eliminating the need for additional damping structures, effectively improving acoustic impedance, reducing manufacturing costs, and enhancing structural stability and reliability. It also prevents dust and other foreign objects from entering the accommodating cavity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the speaker housing according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first housing described in an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the second housing as described in an embodiment of the present invention;

[0024] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a cross-sectional view of the speaker housing described in an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0027] In the picture:

[0028] 1. First shell;

[0029] 11. First base plate; 12. First wall panel; 13. First boss; 131. Insertion part; 1311. First step; 1312. Second step; 132. Support part; 14. Inner protrusion strip; 15. Insertion rod;

[0030] 2. Second shell;

[0031] 21. Second base plate; 22. Second wall panel; 23. Second boss; 231. Connecting groove; 2311. Bottom surface of first-level groove; 2312. Bottom surface of second-level groove; 2313. Bottom surface of third-level groove; 24. Outer protrusion strip; 25. Insertion seat;

[0032] 100. Pressure relief hole; 101. First channel; 102. Second channel; 103. Intermediate channel; 104. First connecting channel; 105. Second connecting channel. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1-7As shown, this utility model provides a speaker housing, including a first housing 1 and a second housing 2. The first housing 1 includes a first base plate 11, a first wall plate 12, and a first boss 13. The first wall plate 12 and the first boss 13 form a first receiving groove on the first base plate 11. The second housing 2 includes a second base plate 21, a second wall plate 22, and a second boss 23. The second wall plate 22 and the second boss 23 form a second receiving groove on the second base plate 21. The second boss 23 is provided with a connecting groove 231. The first receiving groove and the second receiving groove are assembled to form a receiving cavity. The first boss 13 and the connecting groove 231 form a pressure relief hole 100. At least a portion of the pressure relief hole 100 extends in an arc or a zigzag pattern. The receiving cavity is connected to the outside through the pressure relief hole 100.

[0038] In this invention, a first boss 13 is provided on the first housing 1, and a second boss 23 is provided on the second housing 2. A pressure relief hole 100 is formed by the connecting groove 231 on the first boss 13 and the second boss 23. This design is not limited by the thickness of the speaker housing sidewall. The structural dimensions of the first boss 13 and the second boss 23 are more flexible, resulting in lower processing costs and easier size adjustment of the pressure relief hole 100. This effectively increases the range of acoustic impedance adjustment at the pressure relief hole 100 and makes acoustic impedance adjustment at the pressure relief hole 100 simpler and more convenient. This allows for compatibility with a wider variety of speaker units, avoids imbalance of internal and external air pressure during speaker operation, improves sound quality, enhances heat dissipation, and extends service life. At least part of the pressure relief hole 100 extends in an arc or zigzag pattern, eliminating the need for additional damping structures. This effectively improves acoustic impedance, reduces manufacturing costs, enhances structural stability and reliability, and prevents foreign objects such as dust from entering the accommodating cavity.

[0039] In this embodiment, the pressure relief hole 100 extends in a zigzag pattern, which simplifies the manufacturing process. In other embodiments, the pressure relief hole 100 may also extend in an arc, or a portion of the pressure relief hole 100 may extend in an arc while the other portion extends in a zigzag pattern.

[0040] Specifically, the first boss 13 includes an insertion part 131, which is inserted into the communicating groove 231 and spaced apart from the bottom of the communicating groove 231. This arrangement allows the first boss 13 and the communicating groove 231 to more easily and conveniently form a pressure relief hole 100 extending in a zigzag pattern.

[0041] More specifically, the first boss 13 also includes a support portion 132, which abuts against the second boss 23, and an insertion portion 131 is disposed at the end of the support portion 132 facing the second boss 23. By providing the support portion 132, the position of the insertion portion 131 relative to the first base plate 11 can be adjusted more flexibly.

[0042] In this embodiment, the support portion 132 is block-shaped and disposed on the first base plate 11, while the insertion portion 131 is stepped. In other embodiments, the first boss 13 may only include the insertion portion 131, in which case the insertion portion 131 is directly disposed on the first base plate 11. In other embodiments, the first boss 13 may only include the support portion 132, in which case when the support portion 132 and the second boss 23 abut against each other, the opening of the sealing groove 231 forms a pressure relief hole 100.

[0043] Specifically, the insertion part 131 includes a first step 1311, which and the connecting groove 231 form a first channel 101. The support part 132 and the connecting groove 231 form a second channel 102. The axes of the first channel 101 and the second channel 102 are parallel to each other and spaced apart. One end of the first channel 101 opposite to the second channel 102 is connected to the receiving cavity, and the other end of the second channel 102 opposite to the first channel 101 is connected to the outside. This arrangement makes the size of the first channel 101 easier to adjust and makes the position of the first channel 101 relative to the second channel 102 more accurate.

[0044] More specifically, the insertion part 131 includes a second step 1312, which is connected to the first step 1311. The first step 1311 and the second step 1312 are respectively connected to the support part 132. On the support part 132, the height of the first step 1311 is greater than the height of the second step 1312. The second step 1312 and the connecting groove 231 form an intermediate channel 103. The axes of the first channel 101, the intermediate channel 103, and the second channel 102 are parallel to each other and are arranged alternately. The first channel 101 is connected to the second channel 102 through the intermediate channel 103. By setting the second step 1312 to form the intermediate channel 103, the range of acoustic impedance adjustment at the pressure relief hole 100 is effectively improved, and the adjustment of acoustic impedance at the pressure relief hole 100 is made simpler and more convenient.

[0045] In this embodiment, corresponding to the stepped structure of the insertion part 131, the bottom of the connecting groove 231 is adaptively designed as a stepped shape, having three levels of groove bottom surfaces: a first level groove bottom surface 2311, a second level groove bottom surface 2312, and a third level groove bottom surface 2313. The depths of the first level groove bottom surface 2311, the second level groove bottom surface 2312, and the third level groove bottom surface 2313 decrease sequentially. The first channel 101 is located between the first step 1311 and the first level groove bottom surface 2311, the intermediate channel 103 is located between the second step 1312 and the second level groove bottom surface 2312, and the second channel 102 is located between the support part 132 and the third level groove bottom surface 2313. Between the bottom surfaces 2313 of the first-level channel, the junction of the bottom surface 2311 of the first-level channel and the bottom surface 2312 of the second-level channel forms a first connecting channel 104 connecting the first channel 101 and the intermediate channel 103. The junction of the bottom surface 2312 of the second-level channel and the bottom surface 2313 of the third-level channel forms a second connecting channel 105 connecting the intermediate channel 103 and the second channel 102. The axes of the first connecting channel 104 and the second connecting channel 105 are parallel to each other and spaced apart. The axes of the first connecting channel 104 and the second connecting channel 105 are perpendicular to the axes of the first channel 101, the intermediate channel 103 and the second channel 102.

[0046] In other embodiments, the insertion part 131 may also be configured as a three- or more-level stepped structure, thereby forming a plurality of intermediate channels 103.

[0047] Specifically, the first channel 101, the intermediate channel 103, and the second channel 102 are sequentially positioned close to the first base plate 11. In use, the first housing 1 serves as the lower housing, and the second housing 2 serves as the upper housing. This arrangement more effectively prevents foreign objects such as dust from entering the accommodating cavity.

[0048] More specifically, the lengths of the first channel 101, the intermediate channel 103, and the second channel 102 increase sequentially. This arrangement results in the first step 1311, which has a greater height, being smaller than the second step 1312, and the insertion part 131 being smaller relative to the support part 132. This improves the reliability of the insertion part 131 structure and reduces manufacturing costs.

[0049] Specifically, the first wall panel 12 is provided with an inner protruding strip 14, and the second wall panel 22 is provided with an outer protruding strip 24. The outer protruding strip 24 is sleeved on the outside of the inner protruding strip 14, and the inner protruding strip 14 abuts against the second wall panel 22 and the first wall panel 12. The above arrangement allows the first housing 1 and the second housing 2 to be assembled together more reliably.

[0050] More specifically, on the first base plate 11 and the second base plate 21, one is provided with an insertion rod 15 and the other with an insertion seat 25, and the insertion rod 15 is inserted into the insertion seat 25. The above configuration further improves the reliability of the assembly of the first housing 1 and the second housing 2.

[0051] In this embodiment, a plurality of insertion rods 15 are provided on the first base plate 11, and a plurality of insertion seats 25 are provided on the second base plate 21. The plurality of insertion rods 15 and the plurality of insertion seats 25 are inserted one-to-one and are all located in the receiving cavity.

[0052] This utility model also provides a loudspeaker, including a loudspeaker unit and the aforementioned loudspeaker housing, wherein the loudspeaker unit is disposed in an accommodating cavity.

[0053] In the loudspeaker of this invention, a first protrusion 13 is provided on the first housing 1, and a second protrusion 23 is provided on the second housing 2. A pressure relief hole 100 is formed by the connecting groove 231 on the first protrusion 13 and the second protrusion 23. This design is not limited by the thickness of the side wall of the loudspeaker housing. The structural dimensions of the first protrusion 13 and the second protrusion 23 are more flexible, resulting in lower processing costs and easier size adjustment of the pressure relief hole 100. This effectively increases the range of acoustic impedance adjustment at the pressure relief hole 100 and makes acoustic impedance adjustment at the pressure relief hole 100 simpler and more convenient. As a result, it can be adapted to a wider variety of loudspeaker units, avoids the imbalance of internal and external air pressure during loudspeaker operation, improves sound quality, enhances heat dissipation performance, and extends service life. At least part of the pressure relief hole 100 extends in an arc or zigzag pattern, eliminating the need for additional damping structures. This effectively improves acoustic impedance, reduces manufacturing costs, enhances structural stability and reliability, and prevents foreign objects such as dust from entering the accommodating cavity.

[0054] In this embodiment, the speaker unit is a conventional component in the art, and its specific structure, working principle and assembly connection with the speaker housing are conventional settings in the art, and will not be described in detail here.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A speaker housing, characterized in that, include: The first housing (1) includes a first base plate (11), a first wall plate (12) and a first boss (13), wherein the first wall plate (12) and the first boss (13) form a first receiving groove on the first base plate (11); The second housing (2) includes a second base plate (21), a second wall plate (22), and a second boss (23). The second wall plate (22) and the second boss (23) surround the second base plate (21) to form a second receiving groove. The second boss (23) is provided with a connecting groove (231). The first receiving groove and the second receiving groove are assembled to form a receiving cavity. The first boss (13) and the connecting groove (231) surround to form a pressure relief hole (100). At least part of the pressure relief hole (100) extends in an arc or a zigzag shape. The receiving cavity is connected to the outside through the pressure relief hole (100).

2. The speaker housing according to claim 1, characterized in that, The first boss (13) includes an insertion part (131), which is inserted into the communicating groove (231) and is spaced apart from the bottom of the communicating groove (231).

3. The speaker housing according to claim 2, characterized in that, The first boss (13) further includes a support portion (132), which abuts against the second boss (23), and the insertion portion (131) is disposed at one end of the support portion (132) facing the second boss (23).

4. The speaker housing according to claim 3, characterized in that, The insertion part (131) includes a first step (1311), the first step (1311) and the connecting groove (231) surround to form a first channel (101), the support part (132) and the connecting groove (231) surround to form a second channel (102), the axes of the first channel (101) and the second channel (102) are parallel to each other and spaced apart, one end of the first channel (101) away from the second channel (102) is connected to the receiving cavity, and one end of the second channel (102) away from the first channel (101) is connected to the outside.

5. The speaker housing according to claim 4, characterized in that, The insertion part (131) includes a second step (1312), the second step (1312) and the connecting groove (231) surround to form an intermediate channel (103), the axes of the first channel (101), the intermediate channel (103) and the second channel (102) are parallel to each other and are arranged at intervals in sequence, the first channel (101) is connected to the second channel (102) through the intermediate channel (103).

6. The speaker housing according to claim 5, characterized in that, The first channel (101), the intermediate channel (103) and the second channel (102) are sequentially close to the first base plate (11).

7. The speaker housing according to claim 5, characterized in that, The lengths of the first channel (101), the intermediate channel (103), and the second channel (102) increase sequentially.

8. The speaker housing according to claim 1, characterized in that, The first wall panel (12) is provided with an inner protruding strip (14), and the second wall panel (22) is provided with an outer protruding strip (24). The outer protruding strip (24) is sleeved on the outside of the inner protruding strip (14), and the inner protruding strip (14) abuts against the second wall panel (22) and the inner protruding strip (14) abuts against the first wall panel (12).

9. The speaker housing according to any one of claims 1-8, characterized in that, On the first base plate (11) and the second base plate (21), one is provided with an insertion rod (15) and the other is provided with an insertion seat (25), and the insertion rod (15) is inserted into the insertion seat (25).

10. A loudspeaker, characterized in that, It includes a speaker unit and a speaker housing as described in any one of claims 1-9, wherein the speaker unit is disposed in the receiving cavity.

Images