Loudspeaker assembly structure

Abstract

The present invention belongs to the technical field of speaker devices, and particularly relates to a speaker assembly structure. The speaker assembly structure includes: a housing having a hollow accommodating cavity, and each side wall of the housing is respectively provided with an installation hole for installing a speaker; a bracket, the bracket is arranged in the accommodating cavity, the bracket includes a base portion and a plurality of elastic arms connected to the periphery of the base portion, the base portion is fixed in the housing, and each of the elastic arms extends towards each of the installation holes for pressing the speaker to be fixed in the installation hole. In the speaker assembly structure of the present invention, since a bracket is arranged in the housing, each elastic arm of the bracket can tightly press each speaker at the installation hole of the housing. The speaker removes the traditional flanging structure for locking screws, which is beneficial to reducing the occupied space of the speaker, making the structure of multiple speakers more compact and smaller, so as to adapt to different application scenarios and at the same time simplify the design structure of the mold for manufacturing the housing for fixing the speaker.

Description

Technical Field

[0001] The present invention belongs to the technical field of speaker devices, and particularly relates to a horn assembly structure. Background Art

[0002] For existing horns, during assembly, a flanging structure needs to be designed at the edge of the front end of the horn to facilitate fixing the horn to the box body using screws. The form of the product is relatively fixed, the space occupied by the horn is large, the usage scenarios are somewhat limited, and at the same time, the design structure of the mold for manufacturing the box body for fixing the horn is also relatively complex. Summary of the Invention

[0003] The purpose of the present invention is to provide a horn assembly structure, aiming to solve the technical problems of complex horn assembly structure and limited usage scenarios in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a horn assembly structure, comprising:

[0005] A housing having a hollow accommodation cavity, and mounting holes for mounting a horn are respectively formed on the side walls of the housing;

[0006] A bracket, the bracket is arranged in the accommodation cavity, the bracket includes a base portion and a plurality of elastic arms connected to the periphery of the base portion, the base portion is fixed in the housing, and each elastic arm extends towards each mounting hole to press the horn and fix it in the mounting hole.

[0007] Further, the elastic arm includes a rod portion connected to the base portion and a holding portion connected to the rod portion, the end of the rod portion far from the base portion is inclined upward, and the holding portion is parallel to the vertical plane or forms an angle.

[0008] Further, a positioning groove for fitting and accommodating the front end of the horn is provided on the inner wall of the housing at the periphery of the mounting hole.

[0009] Further, the housing includes a bottom case having an opening at the top and an upper cover arranged at the opening for closing the opening, a plurality of fixing ribs are connected to the bottom surface of the upper cover, and one side of each fixing rib abuts against the holding portion of each elastic arm respectively so that the holding portion abuts tightly against the rear end surface of the horn.

[0010] Further, a first arc surface is formed at the corner of the bottom of the side of the fixing rib opposite to the holding portion, and a second arc surface is formed at the corner of the top of the side of the holding portion facing the fixing rib.

[0011] Further, the housing is provided with a plurality of hollow support columns for supporting the base on the bottom surface of the accommodating cavity. The bottom surface of the upper cover is connected with a plurality of holding columns for pressing the base against the inner bottom surface of the housing. The positions of the support columns correspond to the positions of the holding columns one by one. The base is provided with through holes corresponding to the positions of the support columns. The upper and lower ends of each support column are open and have internal threads. Each holding column is hollow and has an opening at the bottom surface. The horn assembly structure further includes screws sequentially passing through the bottom surface of the housing, the support columns, the base and the holding columns. The threaded fit between the screws and the support columns and the holding columns fixes the housing, the bracket and the upper cover.

[0012] Further, the bottom case includes a bottom plate and a plurality of side plates fixedly connected to the bottom plate. The side plates are sequentially connected end to end. An accommodating cavity is formed among the bottom plate, the side plates and the upper cover. An installation hole is provided at the middle position of each side plate. The projections of the side plates towards the bottom plate direction are all located within the bottom plate. The bottom plate has installation portions extending outwards relative to the side plates, and the installation portions are used for being installed and fixed to an external device or an external installation surface.

[0013] Further, the cross-section of the base is circular.

[0014] Further, the cross-section of the housing is a regular polygon, and a plurality of elastic arms are uniformly arranged along the circumferential side of the base.

[0015] Further, the horn assembly structure further includes a foam wrapped around the rear end surface of the horn.

[0016] The beneficial effects of the present invention: In the horn assembly structure of the present invention, since a bracket is provided inside the housing, each elastic arm of the bracket can press each horn against the installation hole of the housing. The horn removes the traditional flanging structure for locking screws, which is beneficial to reducing the occupied space of the horn, making the structure of multiple horns more compact and smaller, so as to adapt to different application scenarios. The assembly of the horn and the housing is simple, and at the same time, it can also simplify the design structure of the mold for manufacturing the housing for fixing the horn. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the horn assembly structure provided by the embodiment of the present invention;

[0019] Figure 2 is Figure 1 a three-dimensional structure schematic diagram when the horn assembly structure shown is removed from the upper cover;

[0020] Figure 3 is Figure 1 an exploded schematic diagram of the horn assembly structure shown;

[0021] Figure 4 is Figure 1 a three-dimensional structure schematic diagram of the horn of the horn assembly structure shown;

[0022] Figure 5 is Figure 2 a three-dimensional structure schematic diagram of the bracket in the horn assembly structure shown;

[0023] Figure 6 is Figure 1 a longitudinal sectional view of the horn assembly structure shown;

[0024] Figure 7 is Figure 1 a schematic diagram of the assembly process of the horn assembly structure shown;

[0025] Figure 8 is Figure 1 a top view structure schematic diagram when the horn assembly structure shown is removed from the upper cover;

[0026] Figure 9 is Figure 1 a three-dimensional structure schematic diagram of the bottom shell in the horn assembly structure shown;

[0027] Figure 10 is Figure 1 a three-dimensional structure schematic diagram of the upper cover in the horn assembly structure shown.

[0028] Among them, the reference numerals in the figure:

[0029] 10 - horn assembly structure 100 - housing 101 - mounting hole

[0030] 110 - bottom shell 120 - upper cover 111 - bottom plate

[0031] 112 - side plate 113 - connecting plate 114 - mounting part

[0032] 115 - connecting hole 116 - reinforcing rib 130 - positioning groove

[0033] 131 - accommodating groove 121 - fixing bone 122 - supporting column

[0034] 140 - connecting column 150 - supporting column 160 - rib

[0035] 200 - Bracket 210 - Base 220 - Elastic Arm

[0036] 221 - Rod Portion 222 - Supporting Portion 201 - Through Hole

[0037] 300 - Horn 310 - Positioning Ear 320 - Foam Detailed Embodiment

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0041] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] As Figures 1 to 5As shown in the figure, the horn assembly structure 10 provided by the embodiment of the present invention includes a housing 100 and a bracket 200. The housing 100 has a hollow accommodation cavity. The housing 100 is preferably a polygonal structure. The housing 100 has a plurality of side walls, and each side wall of the housing 100 is provided with a mounting hole 101 for mounting a horn 300. The front end face of the horn 300 is exposed outside the mounting hole 101. The bracket 200 is disposed in the accommodation cavity of the housing 100. The bracket 200 includes a base portion 210 and a plurality of elastic arms 220 connected to the periphery of the base portion 210. The base portion 210 is fixed inside the housing 100. The number of the elastic arms 220 is equal to the number of the horns 300. Each elastic arm 220 extends toward the direction of each mounting hole 101. Each elastic arm 220 abuts against the rear end face of the corresponding horn 300, that is, the elastic arm 220 presses the horn 300 tightly at the mounting hole 101 of the housing 100. At the same time, a relatively fixed structure is formed between the bracket 200 and the housing 100.

[0043] In the horn assembly structure 10 provided by this embodiment, since the bracket 200 is disposed inside the housing 100, each elastic arm 220 of the bracket 200 can press each horn 300 tightly at the mounting hole 101 of the housing 100. The horn 300 removes the conventional flanging structure (without screw holes) for locking screws, which is beneficial to reducing the occupied space of the horn 300, making the structure of multiple horns 300 more compact and smaller, so as to adapt to different application scenarios. The assembly of the horn 300 and the housing 100 is simple, and at the same time, it can also simplify the design structure of the mold for manufacturing the housing for fixing the horn.

[0044] The horn 300 is generally cylindrical as a whole. Each mounting hole 101 of the housing 100 is a round hole. The bottom plate 111 and the upper cover 120 can be made of insulating materials, such as plastics. The bracket 200 can be made of sheet metal. The heights and positions of the mounting holes 101 on each side wall are the same. For example, each mounting hole 101 is opened at the geometric center position of the corresponding side wall. The base portion 210 of the bracket 200 can be set in a disc shape or the same shape as the cross section of the housing 100. The cross section of the housing 100 can be set as a regular polygon, and a plurality of elastic arms 220 are evenly arranged along the circumferential side of the base portion 210.

[0045] In this embodiment, as Figure 2 、 Figure 4 and Figure 8 shown, the surface of the rear end of the horn 300 is coated with a foam 320, so that the surface of the rear end of the horn 300 will not be scratched during the operation of the bracket 200 pressing the horn 300 tightly. The foam 320 can be, but is not limited to, EVA foam.

[0046] In one embodiment, as Figure 2 、 Figure 4 and Figure 5As shown, the elastic arm 220 of the bracket 200 includes a rod portion 221 and a holding portion 222 connected to the rod portion 221. One end of the rod portion 221 is fixedly connected to the base portion 210, and the other end of the rod portion 221 is connected to the holding portion 222. The end of the rod portion 221 away from the base portion 210 is inclined upward, so that the elastic arm 220 as a whole has good elasticity, facilitating the pressing operation between the elastic arm 220 and the speaker 300; the side surface of the holding portion 222 is parallel to the vertical plane or forms an angle with the vertical plane, the angle between the holding portion 222 and the rod portion 221 is an obtuse angle, and the side of the holding portion 222 away from the base portion 210 abuts against the rear end surface of the speaker 300.

[0047] The elastic arm 220 and the base portion 210 are of an integral structure. The elastic arm 220 is a cantilever extended from the side wall of the base portion 210. The elastic arm 220 has two bending points. The first bending makes the elastic arm 220 as a whole inclined upward, and the second bending makes one end of the elastic arm 220 away from the base portion 210 form a holding portion 222 for abutting against the rear end surface of the speaker 300, and this holding portion 222 is formed by bending the end of the rod portion 221 upward. It can be understood that the holding portion 222 of the elastic arm 220 can also be formed by bending the end of the rod portion 221 downward, that is, the angle between the holding portion 222 and the rod portion 221 is an acute angle.

[0048] In an embodiment, as Figure 2 、 Figure 3 and Figure 9 shown, a positioning groove 130 is provided on the inner wall of the housing 100 at the periphery of the mounting hole 101. The front periphery of the speaker 300 is fitted and accommodated in the positioning groove 130. The setting of the positioning groove 130 can limit the sliding of the speaker 300 on the inner wall of the housing 100.

[0049] Preferably, positioning ears 310 are respectively provided on the two opposite sides of the front end of the speaker 300. Accommodating grooves 131 are respectively formed on the two corresponding sides of the positioning groove 130. The shape of the accommodating grooves 131 is adapted to the positioning ears 310. The positioning ears 310 are accommodated in the accommodating grooves 131. The assembly structure between the accommodating grooves 131 and the positioning ears 310 can limit the rotation of the speaker 300 relative to the housing 100, and can initially mount the speaker 300 on the inner wall of the housing 100.

[0050] In other embodiments, the horn 300 has a conical chassis and a magnet connected to the rear end of the chassis. Positioning ears 310 are respectively provided on opposite sides of the front end of the chassis. A receiving groove 131 is formed in the positioning groove 130 corresponding to the position of the positioning ears 310, and the positioning ears 310 on both sides of the chassis are fitted and received in the receiving groove 131. The assembly of the positioning ears 310 and the receiving groove 131 completes the preliminary assembly of the horn 300 on the housing 100. Then, the bracket 200 is placed in the housing 100, and when the elastic arms 220 of the bracket 200 press the horn 300 against the housing 100, the assembly of the horn 300 is completed. The entire assembly process is simple, and the structure after assembly is stable.

[0051] In one embodiment, as Figure 1 、 Figure 2 and Figure 6 、 Figure 7 shown, the housing 100 includes a bottom case 110 and an upper cover 120. The bottom case 110 is hollow and has an opening at the top. The upper cover 120 is covered on the opening to seal the opening. A plurality of fixing ribs 121 are connected to the bottom surface of the upper cover 120. One side of the fixing ribs 121 abuts against the abutting portion 222 of the elastic arm 220, that is, each fixing rib 121 abuts against the corresponding abutting portion 222 of each elastic arm 220, so as to further press the horn 300 tightly in the mounting hole 101 of the housing 100, and a more stable assembly structure is formed between the horn 300 and the housing 100.

[0052] Preferably, as Figures 4 to 7 and Figure 10 shown, a first arc surface 1210 is formed at the corner of the bottom of the side of the fixing rib 121 opposite to the abutting portion 222, and a second arc surface 2220 is formed at the corner of the top of the side of the abutting portion 222 facing the fixing rib 121. In this way, when the upper cover 120 is covered on the bottom case 110, the fixing rib 121 can be easily inserted into the accommodating cavity of the housing 100, and the fixing rib 121 can easily realize the abutting operation with the abutting portion 222.

[0053] Specifically, as Figures 1 to 3 and Figures 6 to 9As shown, the bottom shell 110 includes a bottom plate 111 and a plurality of side plates 112 fixedly connected to the bottom plate 111. Each side plate 112 is perpendicular to the bottom plate 111, and the lengths of all side plates 112 are equal. The side plates 112 are connected end to end in sequence. An accommodation cavity is formed between the bottom plate 111, each side plate 112 and the upper cover 120. An installation hole 101 is respectively provided at the same position of each side plate 112, that is, each side plate 112 is provided with a speaker 300. The plurality of side plates 112 enclose a regular polygon, such as an equilateral triangle, a square, a regular pentagon, a regular hexagon, etc. The projections of all side plates 112 in the direction towards the bottom plate 111 are all located within the bottom plate 111. The bottom plate 111 has a mounting portion 114 extending outward relative to each side plate 112, and this mounting portion 114 is used for fixing to an external device or an external mounting surface. The bottom plate 111 is rectangular, and the mounting portions 114 are the four corners of the bottom plate 111. Each corner has a chamfer, and the four corners all extend relative to the side plates 112 and are respectively provided with connection holes 115. Screws (not shown in the figure) are passed through the connection holes 115 to mount the bottom plate 111 on an external device or an external mounting surface; A reinforcing rib 116 is also connected between the bottom plate 111 and each side plate 112 to increase the structural strength of the bottom shell 110.

[0054] In a specific embodiment, the housing 100 has six side plates 112. The cross-section enclosed by the six side plates 112 is a regular hexagon. The housing 100 has six mounting surfaces, and each mounting surface is provided with a speaker 300. The bottom plate 111 is rectangular, and two opposite side plates 112 are parallel to two opposite sides of the bottom plate 111. The base 210 of the bracket 200 is circular, and six elastic arms 220 are connected to the side walls around the base 210. The six elastic arms 220 are evenly spaced along the circumference of the base 210, and four through holes 201 are provided in the base 210.

[0055] In addition, four hollow support columns 150 can be fixedly provided on the top surface of the bottom plate 111. The area enclosed by the four support columns 150 is rectangular. Two convex ribs 160 in a cross shape are convexly provided on the top surface of the bottom plate 111. Each convex rib 160 is connected between two diagonal support columns 150. The height of the convex rib 160 is slightly less than the height of the support column 150. Each support column 150 has an internal thread. Four holding columns 122 are provided on the top surface of the upper cover 120. The holding columns 122 are hollow and have an opening at the bottom. The holding columns 122 are provided with internal threads. The four support columns 150, the four through holes 201 of the base 210 and the four holding columns 122 respectively correspond one by one. The upper cover 120 and the bracket 200 are fixed to the bottom shell 110 by screws, that is, the screws sequentially pass through the bottom plate 111, the support columns 150, the base 210 of the bracket 200 and the holding columns 122. The threaded fit between the screws and the support columns 150 and the holding columns 122 realizes the connection and fixation among the bottom plate 111, the bracket 200 and the upper cover 120.

[0056] At the edges where the upper cover 120 and the bottom shell 110 are closed, there are mutually matching steps. In the accommodating cavity of the bottom shell 110, hollow connecting columns 140 are provided at the corners of the two side plates 112. For example, four such connecting columns 140 are provided in the accommodating cavity. The connecting columns 140 have internal threads. The upper cover 120 is provided with counterbores corresponding to the positions of the connecting columns 140. Screws (not shown in the figure) are used to pass through the counterbores and the connecting columns 140 to further fix the upper cover 120 and the bottom shell 110.

[0057] In another embodiment, as Figure 1 , Figure 2 and Figure 8 shown, the bottom shell 110 further includes two oppositely arranged connecting plates 113. The length of the connecting plates 113 is less than the length of the side plates 112. The two ends of the connecting plates 113 are respectively connected to the side plates 112. The cross-section surrounded by the six side plates 112 and the two connecting plates 113 is octagonal. The connecting plates 113 are parallel to one side of the bottom plate 111 and coplanar with the side wall of the bottom plate 111. In this way, it can be avoided that the corners between the side plates 112 and between the side plates 112 and the connecting plates 113 face the side of the bottom plate 111.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A horn assembly structure, characterized in that: Comprising: A housing having a hollow accommodation cavity, and mounting holes for mounting a speaker are respectively formed in the side walls of the housing; A bracket disposed in the accommodation cavity. The bracket includes a base portion and a plurality of elastic arms connected to the periphery of the base portion. The base portion is fixed inside the housing, and each of the elastic arms extends toward each of the mounting holes to press the speaker and fix it in the mounting hole; A plurality of hollow support columns for supporting the base portion are provided on the bottom surface of the accommodation cavity of the housing. A plurality of holding columns for pressing the base portion against the inner bottom surface of the housing are connected to the bottom surface of the upper cover. The positions of the support columns correspond to the positions of the holding columns one by one. Through holes are formed in the base portion corresponding to the positions of the support columns. The upper and lower ends of each support column are open and have internal threads. Each holding column is hollow and has an opening at the bottom surface. The speaker assembly structure further includes screws sequentially passing through the bottom surface of the housing, the support columns, the base portion, and the holding columns. The threaded fit between the screws and the support columns and the holding columns fixes the housing, the bracket, and the upper cover; 2. The horn assembly structure according to claim 1, wherein: The elastic arm includes a rod portion connected to the base portion and a holding portion connected to the rod portion. One end of the rod portion away from the base portion is inclined upward, and the holding portion is parallel to the vertical plane or forms an angle therewith; 3. The horn assembly structure according to claim 1, wherein: A positioning groove for fitting and accommodating the front end of the speaker is provided on the inner wall of the housing at the periphery of the mounting hole; 4. The horn assembly structure according to claim 2, characterized in that: The housing includes a bottom case with an opening at the top and an upper cover disposed at the opening for closing the opening. A plurality of fixing ribs are connected to the bottom surface of the upper cover. One side of each fixing rib abuts against the holding portion of each elastic arm so that the holding portion presses against the rear end surface of the speaker; 5. The horn assembly structure according to claim 4, characterized in that: A first arc surface is formed at the corner of the bottom of the side of the fixing rib opposite to the holding portion, and a second arc surface is formed at the corner of the top of the side of the holding portion facing the fixing rib; 6. The horn assembly structure according to claim 1, wherein: The bottom case includes a bottom plate and a plurality of side plates connected and fixed to the bottom plate. The side plates are sequentially connected end to end. The accommodation cavity is formed among the bottom plate, the side plates, and the upper cover. One of the mounting holes is formed in the middle position of each side plate. The projections of the side plates in the direction of the bottom plate are all located inside the bottom plate. The bottom plate has mounting portions extending outward relative to the side plates for mounting and fixing to an external device or an external mounting surface; 7. The horn assembly structure according to any one of claims 1 to 6, characterized in that: The cross-section of the base portion is circular; 8. The horn assembly structure according to any one of claims 1 to 6, characterized in that: The cross-section of the housing is a regular polygon, and the plurality of elastic arms are uniformly arranged along the circumferential side of the base portion; 9. The horn assembly structure according to any one of claims 1 to 6, characterized in that: The speaker assembly structure further includes a foam wrapped around the rear end surface of the speaker.

Images