Loudspeaker connecting structure
By designing a connection structure that is compatible with screw-fixed and snap-connected fixed speakers, the problem of developing fixed structures in the existing technology needs to be developed separately, achieving cost savings and production efficiency improvements.
Patent Information
- Application Number
- CN202411919852.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-04-25
AI Technical Summary
The existing speaker fixing structure is not uniform, resulting in the need to develop fixed structures separately for different vehicle models, which increases the manufacturer's parts management cost and assembly complexity. The investment in multiple developed molds is high, occupying the factory site and requiring maintenance.
A connection structure compatible with screw-fixed and snap-fixed speakers is designed, and the compatible installation of the two speakers is achieved by setting adapter interfaces at both ends of the connecting barrel, including snap buckles, hooks and screw posts.
While achieving differences in vehicle configuration, there is no need to develop the speaker connection structure separately, which saves mold and parts costs, reduces the probability of assembly errors, and simplifies the mold design and production process.
Smart Images
Figure CN119893395A_ABST
Abstract
Description
[Technical field]
[0001] The embodiments of the present application relate to the technical field of automobile interior decoration, and in particular to a speaker connection structure. [Background technology]
[0002] With the continuous improvement of living standards, the pursuit of pleasure and entertainment has become an indispensable part of people's lives. As an electronic product for entertainment, speakers are increasingly appearing in cars, including car door panels, side panels, luggage boxes and roof linings. There are many types of speakers, and their shapes and sizes are also different. However, due to the limitations of space and load-bearing requirements, the speakers arranged on door panels, side panels, roof linings, etc. are basically small in size. In addition to the magnetic bowl, magnet, connector housing and lamp, the speaker's own structure also has a fixed bracket, which is fixed to the load-bearing part through the fixed bracket. The fixing methods include screw fixing and card fixing. Correspondingly, the load-bearing part also needs to have a screw or card-connected structure or bracket. The fixing methods of screw-fixed speakers and card-fixed speakers are not uniform. Different vehicle configurations require the development of one more structure or bracket, which will increase the manufacturer's parts management costs, and it is easy to confuse during assembly, resulting in production material errors. The main engine factory will also stop the line during assembly, and the production efficiency will be reduced. In addition, the investment cost of the molds developed more is high, the molds occupy the factory site, and also require maintenance costs. [Summary of the invention]
[0003] The embodiment of the present application proposes a speaker connection structure, which relates to the field of automobile interior technology. It can achieve the installation of compatible screw-fixed speakers and clip-on fixed speakers, and can realize the differences in vehicle model configurations without having to develop corresponding speaker connection structures separately, that is, screw-fixed speakers and clip-on fixed speakers can share a connection structure.
[0004] An embodiment of the present application provides a speaker connection structure, including a connecting tube, both ends of which are open; the two ends of the connecting tube are respectively used to adapt to a snap-on fixed speaker and a screw-fixed speaker; the snap-on fixed speaker is provided with a plurality of first buckles, and the inner wall of the connecting tube is provided with a second buckle adapted to the first buckle; the inner wall of the connecting tube is also provided with at least three hooks for limiting the bottom of the snap-on fixed speaker housing; the connecting tube is also provided with a screw column for fixing the screw-fixed speaker.
[0005] Optionally, the hook is provided with a limiting groove adapted to the rib on the clip-fixed speaker, and when the limiting groove matches the rib, the first buckle corresponds to the second buckle one-to-one.
[0006] Optionally, a guiding inclined surface is provided on the limiting groove.
[0007] Optionally, the first buckle has a first guide surface, which is inclined inward along the clip-in direction of the first buckle; the second buckle is a protrusion, which has a second guide surface and a third guide surface, the second guide surface is inclined along the clip-in direction of the first buckle toward the axial direction of the connecting tube, and the third guide surface is inclined along the clip-in direction of the first buckle toward the axial direction away from the connecting tube; when the first buckle is engaged with the second buckle, the first buckle abuts against the third guide surface.
[0008] Optionally, a screw hole corresponding to the mounting hole on the screw-fixed speaker is formed on the screw column; and the height of the screw column is greater than the length of the screw.
[0009] Optionally, the wall thickness of the connecting tube is greater than or equal to 2 mm; and the hook is located outside the installation space of the screw-fixed speaker.
[0010] Optionally, the hook is provided with a supporting rib, and the thickness of the supporting rib is greater than or equal to 1 mm.
[0011] Optionally, the outer circumference of the connecting tube is provided with reinforcing ribs along the circumferential direction.
[0012] Optionally, after the connecting tube and the clip-on fixed speaker are installed in cooperation, a gap is provided between the clip hook and an outer peripheral side wall of the clip-on fixed speaker.
[0013] The optional snap-on fixed speaker and the screw-fixed speaker have the same sound reference plane when installed on the connecting tube.
[0014] The present application provides interfaces compatible with the snap-on fixed speakers and the screw-fixed speakers at both ends of the connecting tube, so that the connecting structure can be compatible with the installation of both types of speakers at the same time. This can realize the difference in vehicle configuration without having to develop brackets for the corresponding speakers separately, saving the cost of new molds and the cost of new parts. The space occupied by the mold in the factory is reduced, and the management cost, repair cost and maintenance cost of the mold are reduced; new parts are saved, the cost of parts packaging is reduced, the space occupied by material storage racks in the warehouse is reduced, and the management cost of logistics and transportation costs is reduced. At the same time, the probability of assembly workers installing the wrong parts is reduced, ensuring the quality of the parts. In addition, the mold used in the manufacture of the connecting structure of the present application is simple, and there is no need to design additional core pulling structures, which greatly shortens the development cycle.
Brief Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 This is a schematic structural diagram of a speaker connection structure proposed in this application at a first viewing angle;
[0017] Figure 2 This is a schematic structural diagram of a speaker connection structure proposed in this application at a second viewing angle;
[0018] Figure 3 This is a schematic structural diagram of a speaker connection structure proposed in this application at a third viewing angle;
[0019] Figure 4 A schematic structural diagram of a speaker connection structure proposed in the present application at a fourth viewing angle;
[0020] Figure 5 It is a schematic diagram of the installation structure of the connecting tube and the clip-on fixed speaker and the screw-fixed speaker;
[0021] Figure 6 It is a structural schematic diagram of a clip-on fixed speaker;
[0022] Figure 7 It is a schematic diagram of the installation structure of the clamped fixed speaker and the connecting tube;
[0023] Figure 8 for Figure 7 Cross-sectional view of the middle BB;
[0024] Fig. 9 It is a schematic diagram of the installation structure of the clip-on fixed speaker and the connecting tube from another perspective;
[0025] Fig.10 for Fig. 9 Cross-sectional view of CC;
[0026] Fig.11 It is a schematic diagram of the installation structure of the screw-fixed speaker and the connecting tube;
[0027] Fig.12 for Fig.11 Cross-sectional view of the middle DD;
[0028] Fig.13 It is a structural schematic diagram of the hook and the limiting groove;
[0029] Fig.14 It is a structural schematic diagram of the hook and the supporting rib;
[0030] Fig.15 A schematic diagram showing that the sound datum planes of a clip-on fixed speaker and a screw-on fixed speaker are consistent;
[0031] Fig.16 This is a cross-sectional view of the screw-fixed speaker installed on the upper rear of the connecting tube.
[0032] Description of reference numerals:
[0033] 1-connecting tube, 2-card-fixed speaker, 3-screw-fixed speaker, 4-first buckle, 5-second buckle, 6-hook, 7-screw column, 8-limiting groove, 9-rib, 10-support rib, 11-reinforcement rib, 12-screw;
[0034] 41 - first guide surface, 51 - second guide surface, 52 - third guide surface, 71 - screw hole, 81 - guide slope. [Specific implementation method]
[0035] In order to better understand the technical solution of this specification, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0036] It should be clear that the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.
[0037] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit this specification. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0038] The technical solution protected by the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0039] See also Figure 1-Figure 12 As shown, a speaker connection structure provided by an embodiment of the present application includes a connection tube 1, and both ends of the connection tube 1 are open; the two ends of the connection tube 1 are respectively used to adapt to the snap-on fixed speaker 2 and the screw-on fixed speaker 3, that is, the two ends of the connection tube 1 are respectively provided with interfaces adapted to the snap-on fixed speaker 2 and the screw-on fixed speaker 3, and can be compatible with the installation of the snap-on fixed speaker 2 and the screw-on fixed speaker 3. After being installed at both ends of the connection tube 1, the installation directions of the snap-on fixed speaker 2 and the screw-on fixed speaker 3 also need to be opposite, such as Figure 5As shown. The snap-on fixed speaker 2 is provided with a plurality of first snaps 4, and the inner wall of the connecting tube 1 is provided with a second snap 5 matched with the first snap 4; the inner wall of the connecting tube 1 is also provided with at least three hooks 6 for limiting the bottom of the shell of the snap-on fixed speaker 2. Here, three first snaps 4, three second snaps 5 and three hooks 6 are set as an example. The second snaps 5 are arranged at equal intervals along the circumferential direction of the connecting tube 1, and the second snaps 5 and the hooks 6 are arranged alternately. The forces of the snap fixing limit and the hook fixing limit on the snap-on fixed speaker 2 are opposite, so as to jointly limit the snap-on fixed speaker 2 on the axis. The connecting tube 1 is also provided with a screw column 7 for fixing the screw-fixed speaker 3, and the screw column 7 is provided with a screw hole 71 corresponding to the mounting hole on the screw-fixed speaker 3; the height of the screw column 7 is greater than the length of the screw 12 inserted, so that when the screw-fixed speaker 3 is matched with the connecting tube 1, the screw 12 passes through the mounting hole on the screw-fixed speaker 3 and the corresponding screw hole 71 on the screw column 7 to lock and fix. Because the height of the screw column 7 is greater than the length of the screw 12 inserted, it can avoid the tip of the screw 12 from being exposed outside the screw column 7, thereby reducing safety risks.
[0040] As a preferred embodiment, the wall thickness of the screw column 7 is selected to be 2 mm, which can prevent the screw column 7 from cracking when the screw 12 is driven in. The hole of the screw hole 71 is selected to be R1.3-R1.5 mm, and the screw 12 used for connection can be a cross-slot pan head self-tapping screw ST3.5×1.3×9.5-CH. Of course, in actual use, the specifications of the screw 12 are determined according to needs.
[0041] See also Fig.13 As shown, in order to facilitate installation and avoid rotational movement of the clip-on fixed speaker 2 after installation, the following measures are adopted: a limiting groove 8 is provided on the hook 6 and is compatible with the rib 9 on the clip-on fixed speaker 2, and when the limiting groove 8 cooperates with the rib 9, the first buckle 4 and the second buckle 5 correspond one to one.
[0042] In order to facilitate the insertion of the rib 9 , a guiding inclined surface 81 is provided on the limiting groove 8 .
[0043] See also Figure 8As shown, in order to facilitate the assembly and removal of the snap-in fixed speaker 2, the following method is adopted: the first snap 4 has a first guide surface 41, and the first guide surface 41 is inclined inwardly along the snap-in direction of the first snap 4, and the inward direction here points to the axial direction of the connecting tube 1; the second snap 5 is a convex block, and the convex block has a second guide surface 51 and a third guide surface 52, and the second guide surface 51 is inclined toward the axial direction of the connecting tube 1 along the snap-in direction of the first snap 4, and the third guide surface 52 is inclined toward the axial direction away from the connecting tube 1 along the snap-in direction of the first snap 4; when the first snap 4 is snapped with the second snap 5, the first snap 4 abuts against the third guide surface 52. When the snap-in fixed speaker 2 is installed, the cooperation of the first guide surface 41 and the second guide surface 51 can make the installation easier, and the setting of the third guide surface 52 can make the snap-in fixed speaker 2 easier to disassemble.
[0044] To ensure that the whole has sufficient strength, the wall thickness of the connecting tube 1 is greater than or equal to 2 mm. In order to prevent the hook 6 from interfering with the installation of the screw-fixed speaker 3 and causing the screw-fixed speaker 3 to be unable to be assembled, the following measures are adopted: the hook 6 is located outside the installation space of the screw-fixed speaker 3, that is, the fixed limit of the hook 6 must avoid the installation space of the screw-fixed speaker 3. In other words, there is an avoidance space between the screw-fixed speaker 3 and the hook 6, such as Fig.16 shown.
[0045] See also Fig.14 As shown, a supporting rib 10 is provided on the hook 6 , and the thickness of the supporting rib 10 is greater than or equal to 1 mm, so as to ensure that the hook 6 will not be damaged during the assembly process of the clip-on fixed speaker 2 .
[0046] See also Figure 4 As shown, the outer periphery of the connecting tube 1 is provided with reinforcing ribs 11 along the circumferential direction to ensure that the connecting tube 1 is not easily deformed in the radial direction, that is, not easily deformed in the direction perpendicular to the axis. The thickness of the reinforcing ribs 11 can be set according to the material, such as 1mm, 1.5mm, 2mm, etc.
[0047] After the connecting tube 1 and the clamping fixed speaker 2 are installed, there is a gap between the clamping hook 6 and the outer peripheral side wall of the clamping fixed speaker 2. To prevent the clamping fixed speaker 2 from being too tight or too loose after installation, refer to Fig.10 As shown in the figure, the gap can be set to 0.2 mm.
[0048] The sound reference planes of the clip-on fixed speaker 2 and the screw-on fixed speaker 3 when installed on the connecting tube 1 are consistent, that is, when the clip-on fixed speaker 2 and the screw-on fixed speaker 3 are installed on the connecting tube 1, the distances from the two points of the human ear to the human ear are equal, so as to avoid the difference in sound quality caused by different distances. Fig.15 As shown, the dotted line in the figure is the sound reference plane.
[0049] The connection structure of the present application still adopts a ring-shaped form to surround the main body of the speaker ( Figure 7 and Fig.11 As shown in the figure, the mold structure is as simple as possible, without a core-pulling structure. The connection structure mold is a concave-convex mold, with a simple structure, no additional core-pulling structure is required, and the mold parting avoids insertion. Figure 1 As shown, Figure 1 The dotted line in the figure is the line where the axis of the speaker is located, and the direction of the arrow is the demoulding direction.
[0050] This application provides interfaces that are compatible with the clip-on fixed speaker 2 and the screw-on fixed speaker 3 at both ends of the connecting tube, so that the connection structure can be compatible with the installation of both speakers at the same time. This can achieve the difference in vehicle configuration without having to develop brackets for the corresponding speakers separately, saving the cost of new molds and the cost of new parts. It reduces the space occupied by molds in factory buildings, and reduces the management cost, repair cost and maintenance cost of molds; it saves new parts, reduces the cost of parts packaging, reduces the space occupied by material storage racks in warehouses, and reduces the management cost of logistics and transportation costs. At the same time, it reduces the probability of assembly workers installing the wrong parts, ensuring the quality of parts.
[0051] The design scheme of the present application has good scalability and is not only suitable for installing speakers on the roof lining, but can also be used on parts such as door panels, instrument panels, and pillar side panels.
[0052] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.
Claims
1. A speaker connection structure, characterized in that: The invention comprises a connecting tube (1), wherein both ends of the connecting tube (1) are open; the two ends of the connecting tube (1) are respectively used to match with a snap-on fixed speaker (2) and a screw-on fixed speaker (3); the snap-on fixed speaker (2) is provided with a plurality of first snaps (4), and the inner wall of the connecting tube (1) is provided with a second snap (5) matched with the first snap (4); the inner wall of the connecting tube (1) is also provided with at least three snap hooks (6) for limiting the bottom of the shell of the snap-on fixed speaker (2); the connecting tube (1) is also provided with a screw column (7) for fixing with the screw-on fixed speaker (3).
2. The speaker connection structure according to claim 1, characterized in that: The hook (6) is provided with a limiting groove (8) adapted to the rib (9) on the fixed speaker (2), and when the limiting groove (8) matches the rib (9), the first buckle (4) and the second buckle (5) correspond one to one.
3. The speaker connection structure according to claim 2, characterized in that: The limiting groove (8) is provided with a guiding inclined surface (81).
4. The speaker connection structure according to claim 1, characterized in that: The first buckle (4) has a first guide surface (41), and the first guide surface (41) is arranged inwardly inclined along the clamping direction of the first buckle (4); the second buckle (5) is a convex block, and the convex block has a second guide surface (51) and a third guide surface (52), and the second guide surface (51) is arranged in an inclined direction close to the axis of the connecting tube (1) along the clamping direction of the first buckle (4), and the third guide surface (52) is arranged in an inclined direction away from the axis of the connecting tube (1) along the clamping direction of the first buckle (4); when the first buckle (4) and the second buckle (5) are clamped, the first buckle (4) abuts against the third guide surface (52).
5. The speaker connection structure according to claim 1, characterized in that: The screw column (7) is provided with a screw hole (71) corresponding to the mounting hole on the screw-fixed loudspeaker (3); the height of the screw column (7) is greater than the penetration length of the screw (12).
6. The speaker connection structure according to claim 1, characterized in that: The wall thickness of the connecting tube (1) is greater than or equal to 2 mm; the hook (6) is located outside the installation space of the screw-fixed loudspeaker (3).
7. The speaker connection structure according to claim 1, characterized in that: The hook (6) is provided with a supporting rib (10), and the thickness of the supporting rib (10) is greater than or equal to 1 mm.
8. The speaker connection structure according to claim 1, characterized in that: The outer circumference of the connecting tube (1) is provided with reinforcing ribs (11) along the circumferential direction.
9. The speaker connection structure according to claim 1, characterized in that: After the connecting tube (1) and the snap-fit fixed speaker (2) are mounted in cooperation, a gap is provided between the snap-fit hook (6) and the outer peripheral side wall of the snap-fit fixed speaker (2).
10. The speaker connection structure according to claim 1, characterized in that: The sound emitting reference surfaces of the snap-on fixed loudspeaker (2) and the screw fixed loudspeaker (3) when installed on the connecting tube (1) are consistent.