Convenient exciter mounting device based on internal and external thread connection

Abstract

The utility model relates to the technical field of exciter installation, and provides a convenient exciter installation device based on internal and external thread connection, which is used for installing an exciter on an interior trim part, and the interior trim part is provided with a groove. The assembling boss is arranged on the bottom shell, the assembling boss is provided with a threaded hole, and the threaded hole and the assembling boss are eccentrically arranged; the stud is arranged in the groove, the stud and the groove are concentrically arranged, the stud is in threaded connection with the threaded hole, and the outer wall of the assembly boss abuts against the inner wall of the groove. By means of the technical scheme, the problems that in the related technology, the space occupation problem of a traditional screwing mode cannot be solved, and the contradiction between fixing strength and dismounting convenience of a bonding mode cannot be overcome are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of exciter installation, and in particular to a convenient exciter installation device based on internal and external thread connections. Background Art

[0002] In the field of automotive interior assembly, with the continuous expansion of the application of exciters based on the surface acoustic principle in automobiles, the installation method of the exciter has become one of the key factors affecting the overall performance and production efficiency of the automobile interior. It is mainly divided into two installation methods: screw connection and bonding.

[0003] The first is the screw connection method. The existing screw connection method requires the interior to be molded with a BOSS column with a doghouse structure. Although this structure meets the structural strength requirements during screw connection, the larger BOSS column will occupy a certain amount of space and cannot fully adapt to the high requirements of modern automobile interior design for space utilization.

[0004] The second method is bonding. If you pursue high bonding strength, it will become extremely difficult to remove the actuator and may even damage the interior. If you focus on easy removal, you may not be able to ensure the actuator is securely installed during long-term use.

[0005] Therefore, the limitations of existing screw and adhesive mounting methods for actuator installation have, to a certain extent, hindered improvements in overall automotive interior performance and production process optimization. Consequently, a new actuator mounting method is urgently needed that can address the space constraints of traditional screw mounting while also overcoming the conflict between mounting strength and ease of removal associated with adhesive mounting, thereby adapting to the rapidly evolving needs of the automotive industry. Utility Model Content

[0006] The utility model proposes a convenient installation device for an exciter based on internal and external threaded connections, which solves the problem of space occupation that cannot be solved by traditional screw connection methods in related technologies, and cannot overcome the contradiction between fixing strength and disassembly convenience of bonding methods.

[0007] The technical solution of the utility model is as follows:

[0008] A convenient installation device for an actuator based on internal and external thread connection, used for installing the actuator on an interior decoration part, wherein the interior decoration part has a groove, comprises:

[0009] A bottom shell is provided on the exciter;

[0010] An assembly boss is provided on the bottom shell, the assembly boss has a threaded hole, and the threaded hole is eccentrically arranged with respect to the assembly boss;

[0011] A stud is disposed in the groove, the stud and the groove are arranged concentrically, the stud is threadedly connected to the threaded hole, and the outer wall of the assembly boss abuts against the inner wall of the groove.

[0012] Optionally, the assembly boss is in the shape of an inverted truncated cone, and the height of the assembly boss is the same as the depth of the groove.

[0013] Optionally, also include:

[0014] An annular protrusion is provided on the interior decoration component, the groove is formed inside the annular protrusion, and the annular protrusion is coaxially arranged with the stud.

[0015] Optionally, the height of the stud is greater than the height of the annular protrusion.

[0016] Optionally, also include:

[0017] A shock-absorbing washer is arranged between the annular protrusion and the bottom shell.

[0018] Optionally, the shock-absorbing gasket is made of any one of foam, sponge or rubber.

[0019] Optionally, the maximum distance from the center of the threaded hole to the outer wall of the assembly boss is the same as the radius of the groove.

[0020] Optionally, the side wall of the bottom shell has a protrusion, and the protrusion has a connecting hole.

[0021] The working principle and beneficial effects of the utility model are as follows:

[0022] When the exciter in the present invention vibrates or is subjected to vibration, the external thread at the contact surface between the threaded hole and the stud will be subjected to a lateral shear force, thereby achieving a reliable anti-loosening function. Compared with the screw connection method, the threaded connection facilitates the lightweight design of the exciter base shell and can effectively reduce the space occupied by the exciter on the interior decoration; compared with the bonding method, the threaded connection can achieve both improved fixing strength and ease of disassembly. Therefore, the present invention realizes the convenience of installing the exciter on the interior decoration while being conducive to improving the lightweight design of the exciter base shell, and the threaded connection method improves the efficiency of the exciter installation and reduces the difficulty of disassembling the exciter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0024] Figure 1 This is a schematic diagram of the structure of the utility model device;

[0025] Figure 2 This is a schematic diagram of the structure of the utility model after assembly.

[0026] In the figure: 1. exciter; 2. interior trim; 201. groove; 3. bottom shell; 31. protrusion; 311. connection hole; 4. assembly boss; 401. threaded hole; 5. stud; 6. shock-absorbing washer; 7. annular protrusion. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0028] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0029] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] Reference Figure 1~Figure 2 , which is an embodiment of the present utility model, proposes a convenient installation device for an exciter based on internal and external threaded connection, which is used to install the exciter 1 on the interior decoration part 2, and the interior decoration part 2 has a groove 201, including: a bottom shell 3 is arranged on the exciter 1; an assembly boss 4 is arranged on the bottom shell 3, and the assembly boss 4 has a threaded hole 401, and the threaded hole 401 is eccentrically arranged with the assembly boss 4; a stud 5 is arranged in the groove 201, the stud 5 is concentrically arranged with the groove 201, the stud 5 is threadedly connected to the threaded hole 401, and the outer wall of the assembly boss 4 abuts against the inner wall of the groove 201.

[0032] In the above scheme, the exciter 1 is a surface-emitting sound exciter 1 for a car audio system, and the interior trim 2 is a specific location in the car interior, such as a door interior panel. First, a circular groove 201 is formed in the interior trim 2. Then, the bottom shell 3 of the exciter 1 is manufactured, and the assembly boss 4 is integrally formed on the bottom shell 3, ensuring that the threaded hole 401 on the assembly boss 4 is eccentrically arranged with the assembly boss 4. The exciter 1 is first installed on the bottom shell 3. The stud 5 fixed in the groove 201 is arranged concentrically with the groove 201. During installation, the bottom shell 3 of the exciter 1 is placed opposite the interior trim 2, and the stud 5 is aligned with the threaded hole 401 on the assembly boss 4. By rotating the exciter 1 or the bottom shell 3, the bottom shell 3 and the interior trim 2 are threadedly connected. Because the threaded hole 401 is eccentrically arranged, when fully tightened, the outer wall of one side of the assembly boss 4 tightly abuts the inner wall of the groove 201, thereby fixing the exciter 1. The utility model not only avoids the space occupation of the BOSS column of the doghouse structure in the traditional screw connection mode, but also increases the friction force through the eccentric thread connection, improves the fixing strength, and is easy to disassemble.

[0033] Optionally, the assembly boss 4 is in the shape of an inverted truncated cone, and the height of the assembly boss 4 is the same as the depth of the groove 201 .

[0034] In this embodiment, when assembly boss 4 engages with groove 201, its frustum-shaped surface guides assembly boss 4 into close contact with the inner wall of groove 201 as actuator 1 rotates to thread stud 5 into threaded hole 401, achieving a stable connection in an eccentric arrangement. Furthermore, the frustum-shaped structure disperses stress from all directions during vehicle operation, further enhancing connection stability and preventing component damage due to localized stress concentration.

[0035] Optionally, the method further includes: an annular protrusion 7 is provided on the interior decoration component 2 , a groove 201 is formed inside the annular protrusion 7 , and the annular protrusion 7 is coaxially arranged with the stud 5 .

[0036] In the above embodiment, annular protrusion 7 forms a recess 201 for mounting exciter 1. Annular protrusion 7 is coaxially arranged with stud 5 within recess 201. During assembly, stud 5 is first installed in recess 201 within annular protrusion 7. Exciter 1 is then threadedly connected to stud 5 via assembly boss 4 on bottom housing 3. Annular protrusion 7 acts as a structural reinforcement, limiting radial displacement of assembly boss 4 and ensuring that exciter 1 maintains a stable mounting position despite the vibrations experienced during vehicle operation.

[0037] Optionally, the height of the stud 5 is greater than the height of the annular protrusion 7, so as to facilitate the alignment and connection between the threaded hole 401 and the stud 5. Moreover, the longer stud 5 can also enhance the connection strength.

[0038] Optionally, the invention further includes: a shock-absorbing washer 6 disposed between the annular protrusion 7 and the bottom shell 3 .

[0039] In the above scheme, when the exciter 1 generates vibration, the shock-absorbing gasket 6 made of rubber absorbs and buffers the vibration energy through its own elastic deformation, reducing the transmission of vibration to the interior trim 2, thereby reducing the collision noise caused by the vibration of the exciter 1 and improving the acoustic environment and overall comfort of the car trunk area.

[0040] Optionally, the shock-absorbing washer 6 is made of any one of foam, sponge or rubber.

[0041] In the above solution, the foam is light, soft and has good sound absorption effect. It can effectively reduce shock and meet the requirements of weight control.

[0042] Optionally, the maximum distance from the center of the threaded hole 401 to the outer wall of the assembly boss 4 is the same as the radius of the groove 201 .

[0043] In the above solution, when the exciter 1 itself vibrates or is subjected to vibration, the external thread at the contact surface between the threaded hole 401 and the stud 5 will be subjected to a transverse shear force, thereby achieving a reliable anti-loosening function.

[0044] Optionally, the side wall of the bottom shell 3 has a protrusion 31 , and the protrusion 31 has a connecting hole 311 .

[0045] In the above solution, the protrusion 31 is rectangular, and the mounting hole on the protrusion 31 can be equipped with a fastener or used as a wire fixing hole.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A convenient installation device for an actuator based on internal and external thread connection, used for installing an actuator (1) on an interior decoration part (2), wherein the interior decoration part (2) has a groove (201), characterized in that: include: A bottom shell (3) is arranged on the exciter (1); An assembly boss (4) is provided on the bottom shell (3), the assembly boss (4) having a threaded hole (401), and the threaded hole (401) and the assembly boss (4) are eccentrically arranged; A stud (5) is disposed in the groove (201), the stud (5) and the groove (201) are arranged concentrically, the stud (5) is threadedly connected to the threaded hole (401), and the outer wall of the assembly boss (4) abuts against the inner wall of the groove (201).

2. The convenient installation device for an exciter based on internal and external thread connection according to claim 1, characterized in that: The assembly boss (4) is in the shape of an inverted truncated cone, and the height of the assembly boss (4) is the same as the depth of the groove (201).

3. The convenient installation device for an exciter based on internal and external thread connection according to claim 1, characterized in that: Also includes: An annular protrusion (7) is provided on the interior trim (2), the groove (201) is formed inside the annular protrusion (7), and the annular protrusion (7) and the stud (5) are coaxially arranged.

4. The convenient installation device for an exciter based on internal and external thread connection according to claim 3, characterized in that: The height of the stud (5) is greater than the height of the annular protrusion (7).

5. The convenient installation device for an exciter based on internal and external thread connection according to claim 3, characterized in that: Also includes: A shock-absorbing washer (6) is arranged between the annular protrusion (7) and the bottom shell (3).

6. The convenient installation device for an exciter based on internal and external thread connection according to claim 5, characterized in that: The material of the shock-absorbing washer (6) is any one of foam, sponge or rubber.

7. The convenient installation device for an exciter based on internal and external thread connection according to claim 1, characterized in that: The maximum distance from the center of the threaded hole (401) to the outer wall of the assembly boss (4) is the same as the radius of the groove (201).

8. The convenient installation device for an exciter based on internal and external thread connection according to claim 1, characterized in that: The side wall of the bottom shell (3) has a protrusion (31), and the protrusion (31) has a connecting hole (311).

Images