A sealing type wiring connection structure and an audio device

Abstract

The application discloses a sealing wire connection structure and an audio device. The sealing wire connection structure is used for being connected to a connecting frame body and arranged on a functional part shell. The sealing wire connection structure comprises a wire protection sleeve body, the wire protection sleeve body is injection-molded on at least one end of the connecting frame body and connected to the functional part shell, a wire passing position is arranged on the wire protection sleeve body, the wire passing position is used for being communicated with the functional part shell and used for penetrating into a conductive connecting part in the functional part shell, and a plugging structure part is arranged in the wire passing position. The problem that a product surface quality is poor due to expansion and scattering of a filler in the prior art is solved.

Description

Technical Field

[0001] This application relates to the field of robotics, and more particularly to a confined wiring connection structure and an audio device. Background Technology

[0002] In the structure of some audio devices on the market, such as headphones, over-ear headphones, and over-ear dual-channel hearing aids, functional components such as the earpiece or main unit need to be connected to a bracket, and cables (wires) need to be run on the bracket to supply power or transmit signals to the earpiece or other functional components. Stress relief components (wire sleeves) are usually used to fix the connection between the housing of the functional component and the bracket or wires.

[0003] In existing systems, after the support or wire passes through the cable sheath, the perforations on the sheath are usually sealed with filler, such as by using glue or other fillers to fill the gap between the wire and the perforation. However, after prolonged use, the filler can easily expand and dissipate, causing bulges on the product surface and resulting in quality problems.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a sealing wiring connection structure and an audio device, which solves the problem that the surface quality of the product is poor because the filling agent used for sealing is prone to expansion and disintegration.

[0006] The technical solution of this application is as follows: This application proposes a blocking-type cable connection structure for connecting to a connecting frame and mounted on a functional component housing, wherein the blocking-type cable connection structure includes: The cable sheath is injection molded and connected to at least one end of the connecting frame and to the housing of the connecting functional component. The cable sheath has a wiring position for connecting to the housing of the functional component and for passing through a conductive connector that enters the housing of the functional component. The blocking structural component is placed inside the wiring location.

[0007] Optionally, the wiring location includes grooves and / or through holes; The blocking structure includes a blocking body that is connected to the cable sheath to seal the groove and / or perforation.

[0008] Optionally, when the wiring location includes a perforation, the plug body includes a sealing head that is embedded in the perforation.

[0009] Optionally, the blocking structure also includes a positioning part, which is disposed on the blocking body and cooperates with the cable sheath to assemble and position the blocking body.

[0010] Optionally, the positioning part includes a positioning post, and the cable sleeve has a positioning hole, and the positioning post is positioned by being inserted into the positioning hole; Alternatively, the positioning part includes a positioning hole, and a positioning post is provided on the cable sleeve.

[0011] Optionally, the cable sheath has positioning holes located on both sides of the conductive connector.

[0012] Optionally, a recessed groove is provided in the wiring position, and the conductive connector is placed in the recessed groove; The sealing surface of the plug is placed against both sides of the settling tank to seal it.

[0013] Optionally, the plug has a curved outer surface that connects with the outer surface of the cable sheath.

[0014] Optionally, the end of the connecting frame has an anti-detachment part, which is fixedly installed inside the cable protection sleeve.

[0015] Optionally, it also includes an outer sheath layer that covers the outer surfaces of the connecting frame, conductive connector, cable sheath, and plugging structure.

[0016] On the other hand, this application also proposes an audio device, including at least one earpiece, at least one main unit, at least one connecting frame, and at least one enclosed wiring connection structure as described above; The connecting frame connects the handset and the main unit, and a conductive connector is connected between the handset and the main unit. The conductive connector is a flexible circuit board or a cable. The earpiece includes an earpiece housing and a cable sheath with a sealed cable connection structure, which is integrally or detachably mounted on the earpiece housing. And / or, The main unit includes a main unit housing, and a cable protection sleeve with a sealed cable routing connection structure is integrally or detachably mounted on the main unit housing.

[0017] The beneficial effects of the sealing-type wiring connection structure and audio equipment provided in this application are at least as follows: the cable sheath and the connecting frame are typically injection molded as a single unit, and the cable sheath is connected to the functional component housing, thereby connecting the connecting frame and the functional component housing. By providing wiring positions on the cable sheath, which connect to the functional component housing, conductive connectors can pass through the wiring positions into the functional component housing, achieving electrical connection with the functional component. The sealing structure is then fixed within the wiring positions to seal them, thus achieving a stable connection between the conductive connector and the functional component housing. Furthermore, the sealing structure is fixed to the cable sheath, maintaining a consistent shape and preventing expansion or detachment during prolonged product use. Compared to processes such as filling with glue, directly installing the sealing structure results in higher assembly efficiency. Moreover, mass production of the sealing structure ensures minimal variation in size and shape, resulting in high product consistency and guaranteed product quality after assembly onto the functional component. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a sealing-type wiring connection structure applied to an earphone structure according to an embodiment of this application. Figure 2 This is an exploded view of an embodiment of the present application of a sealing wiring connection structure to an earphone structure; Figure 3 This is an exploded view of one form of a blocking-type wiring connection structure according to an embodiment of this application; Figure 4 This is an exploded view of another form of a blocking-type wiring connection structure according to an embodiment of this application; Figure 5 This is a cross-sectional view of a sealing wiring connection structure applied to an earphone structure according to an embodiment of this application.

[0019] The labels in the diagram are as follows: 100, Functional component housing; 110, Handpiece housing; 120, Main unit housing; 200, Connecting frame; 201, Anti-detachment part; 210, Conductive connector; 211, Flexible circuit board; 300, Cable sheath; 310, Cable routing position; 311, Groove; 312, Recessed groove; 313, Perforation; 320, Positioning hole; 400, Blocking structure; 410, Blocking body; 411, Covering surface; 420, Positioning part; 421, Positioning post; 430, Sealing head; 440, Curved outer surface; 500, Outer covering layer. Detailed Implementation

[0020] This application provides a blocked wiring connection structure. To make the purpose, technical solution, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0021] It should be noted that in annotations, leader lines with arrows represent non-solid areas such as holes and slots, or non-specific solid features such as higher-level features, or specific directions. Leader lines without arrows represent solid features or specific lower-level features.

[0022] When a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality of" means two or more, unless otherwise explicitly defined.

[0023] Existing methods of sealing the perforations on the wire sheath with filler not only easily cause surface bulges, leading to product quality issues, but also, because the filler lacks a sturdy structure, it is difficult to completely fill the gaps between the wire and the perforation during assembly, resulting in low assembly efficiency. Furthermore, the inability to sturdyen the filler means that when an outer coating layer is applied, the contact area between the filler and the coating layer cannot be guaranteed, leading to unreliable adhesion. Therefore, to solve or improve the above problems, this embodiment proposes the following solution: like Figure 1 , Figure 2 As shown, this embodiment proposes a sealed wiring connection structure for connecting to the connecting frame 200 and mounted on the functional component housing 100. The functional component housing 100 can be a handset housing 110, a main unit housing 120 (adjuster housing), etc. The connecting frame 200 can adopt a bending rod or bending plate structure, which can deform to adapt to the user's usage habits; for example, it can be made of shape memory metal. The sealed wiring connection structure is mounted on the functional component housing 100, thereby connecting the functional component housing 100, the connecting frame 200, and the conductive connector 210 for providing power and / or signals to the functional component. The conductive connector 210 can be a flexible circuit board 211 or a cable, or a combination of a flexible circuit board and a cable.

[0024] like Figure 1 , Figure 2 As shown, the blocking cable connection structure of this embodiment mainly includes: a cable sheath 300 and a blocking structural component 400. The cable sheath 300 can be made of plastic and is connected to the functional component housing 100. For example, the cable sheath 300 can be integrally injection molded with the functional component housing 100, or it can be a separate structural component that can be assembled onto the functional component housing 100. The cable sheath 300 is injection molded to at least one end of the connecting frame 200, thereby enabling a stable connection between the connecting frame 200 and the functional component housing 100. For ease of structural description, the end of the cable sheath 300 connected to the connecting frame 200 is designated as the first end, and the end connected to the functional component housing 100 is designated as the second end. A wiring position 310 is provided on the second end of the cable sheath 300. The wiring position 310 can be a groove 311 and / or a through hole 313, so that the wiring position 310 can be used to connect to the functional component housing 100. The conductive connector 210 can pass through the wiring position 310 and enter the functional component housing 100. The blocking structure 400 can be a structural component with a fixed shape, such as a plastic block or a rubber block. After the conductive connector 210 passes through the wiring position 310, it is blocked by the blocking structure 400, thereby fixing the conductive connector 210. By fixing the blocking structure 400 on the cable sheath 300, the shape of the blocking structure 400 is fixed and will not expand or fall off during long-term use of the product. Compared with processes such as filling with glue, the assembly and processing efficiency of directly installing the plugging structure 400 is higher. Moreover, the plugging structure 400 is mass-produced, so the size of the plugging structure 400 is basically the same. Therefore, after being assembled onto the functional parts, the product consistency is high and the product quality is guaranteed.

[0025] The blocking structure 400 includes a blocking body 410, which blocks the wiring position 310 by means of a blocking body 410 with a fixed shape. The shape of the blocking body 410 varies depending on the structure of the wiring position 310, so as to adapt to the wiring position 310.

[0026] like Figure 2 , Figure 3As shown, for example, the wiring position 310 includes a groove 311, which is formed on one side surface of the cable sheath 300 and extends from the first end to the second end. The conductive connector 210 can then be placed within this groove 311 for wiring. Correspondingly, a sealing surface 411 is formed on one side of the plug 410. The plug 410 covers the surface of the groove 311 through the sealing surface 411 and presses and fixes the conductive connector 210, thereby sealing the groove 311 and fixing the conductive connector 210. Especially for the installation of flexible circuit boards, which are flat, the bottom surface of the groove 311 can be made flat. The flexible circuit board is attached to the bottom of the groove 311, allowing the groove 311 to limit the position of the flexible circuit board, thus facilitating the installation and positioning of the flexible circuit board.

[0027] like Figure 2 As shown, for example, trace position 310 includes through hole 313 (please refer to...). Figure 2 (No structural diagram of the perforation is provided). The perforation 313 is formed at one end of the cable sheath 300. The conductive connector 210 can be placed in the perforation 313 for wiring. Correspondingly, a sealing head 430 (or only the sealing head 430) is provided on one end of the plug 410. The shape of the sealing head 430 can match the shape of the perforation 313 and leave space for the conductive connector 210. The plug 410 blocks the inner wall of the perforation 313 through the sealing head and squeezes and fixes the conductive connector 210, thereby sealing the groove 311 and fixing the conductive connector 210. This facilitates the passage of both ends of the flexible circuit board through the perforation 313. The two ends of the flexible circuit board are designed with gold fingers and / or surface mount connectors for easy connection with the circuit board in the functional component.

[0028] like Figure 2 , Figure 4 As shown, for example, the wiring position 310 includes a through hole 313 and a groove 311. A through hole 313 is provided at one end of the cable sheath 300 near the functional component housing 100, and a groove 311 is provided at the other end near the connecting frame 200. The groove 311 extends to communicate with the through hole 313. This forms sidewalls on both sides of the groove 311. Correspondingly, a sealing head 430 is provided at one end of the plug 410, and a sealing surface 411 is provided on one side. The sealing surface 411 presses the conductive connector 210 within the groove 311, and the sealing head blocks the inner wall of the through hole 313. This makes the connection more stable and can adapt to various types of flexible circuit boards. Additionally, limiting sides are formed on both sides of the plug 410. By cooperating with the sidewalls on both sides of the groove 311, the plug 410 can be more stably secured within the wiring position 310, preventing displacement.

[0029] like Figure 2 , Figure 3 As shown, the blocking structure 400 in this embodiment also includes a positioning part 420, which is disposed on the blocking body 410. The positioning part 420 cooperates with the protective sleeve 300 to assemble and position the blocking body 410. Thus, during the assembly of the blocking structure 400, positioning by the positioning part 420 before installation improves the installation accuracy and ensures installation consistency. More precise positioning further improves installation efficiency; improved installation consistency ensures consistent product quality and provides stable product quality. Specifically, the positioning part 420 may include a positioning post 421, and the protective sleeve 300 has a positioning hole 320, which is inserted into the positioning hole 320 for positioning. Alternatively, the positioning part includes a positioning hole, and the protective sleeve has a positioning post. In this embodiment, it is preferable to have positioning holes 320 on the protective sleeve 300, with two positioning holes 320 located on both sides of the conductive connector 210. By positioning both sides of the conductive connector 210, the positioning is made more accurate. Furthermore, by positioning the conductive connector 210 before assembly, it is positioned between the two positioning posts 421. Therefore, during further assembly, the conductive connector 210 is less likely to come off the wiring position 310.

[0030] like Figure 3 , Figure 5 As shown, a recessed groove 312 is provided within the wiring position 310, and the conductive connector 210 is disposed within the recessed groove 312. The recessed groove 312 can be disposed on the bottom surface of the groove 311 or on the inner wall of the through hole 313. The width of the recessed groove 312 matches the width (or outer diameter) of the conductive connector 210. When the sealing surface 411 of the plug 410 abuts against both sides of the recessed groove 312 to seal the recessed groove 312, the conductive connector 210 can be limited by the recessed groove 312. In particular, flexible circuit boards can be directly positioned and limited within the recessed groove 312, which facilitates assembly. In other structures, a groove can also be provided on the sealing surface 411 to match the recessed groove 312. When the groove covers the recessed groove 312, it provides some clearance for thicker flexible circuit boards, preventing excessive compression.

[0031] like Figure 2 , Figure 3 As shown, the plug 410 in this embodiment has a curved outer surface 440, which is connected to the outer surface of the cable sheath 300. By connecting the outer surface of the plug 410 to the cable sheath 300 and / or the functional component housing 100, the smooth appearance of the product is ensured, and user acceptance is improved.

[0032] like Figure 5As shown, to improve the connection stability between the connecting frame 200 and the cable sheath 300 and prevent the connecting frame 200 from detaching from the cable sheath 300, an anti-detachment part 201 is provided at the end of the connecting frame 200. The anti-detachment part 201 is fixedly installed inside the cable sheath 300 by injection molding. The anti-detachment part 201 can be a non-linear bend, a protrusion of varying thickness, or other irregularly shaped structure. This improves the fastening after injection molding, making the connection between the connecting frame 200 and the cable sheath 300 more secure.

[0033] like Figure 5 As shown, the sealed wiring connection structure also includes an outer sheath 500, such as... Figure 1 , Figure 5 As shown, the outer coating layer 500 covers the outer surfaces of the connecting frame 200, conductive connector 210, cable sheath 300, and blocking structure 400. For example, the outer coating layer can be formed through secondary injection molding, or it can be produced separately and then fitted onto the outer surfaces of the connecting frame 200, conductive connector 210, cable sheath 300, and blocking structure 400. Because the blocking structure 400 has a fixed structure and is exposed on the surface of the cable sheath 300, when the outer coating layer covers the blocking structure 400, the exposed surface is in stable contact with the outer coating layer. Especially during secondary injection molding, a more reliable bond can be formed between the outer coating layer and the outer surface.

[0034] In the specific production process, taking the conductive connector 210 as the flexible circuit board 211 and the connecting frame 200 as the shape memory metal component as an example, when the flexible circuit board 211 is bonded to the shape memory metal component, it is easy to damage the flexible circuit board 211 during the subsequent secondary injection molding process to form the outer coating layer. Therefore, it is not advisable to directly bond the flexible circuit board 211 to the shape memory metal component. Thus, the flexible circuit board 211 needs to be retrofitted before processing the outer coating layer (during the first injection molding). The retrofitted flexible circuit board 211 is connected to the functional component housing 100 through pre-set wiring positions 310 (grooves 311 and / or through holes 313). The specific steps are as follows: The first step is to injection mold the shape memory metal (titanium wire) onto the cable sheath 300 (or the cable sheath 300 and the functional component housing 100) through the first injection molding. If functional component housings 100 are provided at both ends of the shape memory metal (for example, one end is the earpiece housing 110 and the other end is the main unit housing 120), then the cable sheath 300 is formed at both ends.

[0035] The second step is to insert the flexible circuit board 211 through the wiring position 310 into the functional component housing 100. Both ends of the flexible circuit board 211 pass through the wiring position 310 and are inserted into the earpiece housing 110 and the main unit housing 120, respectively.

[0036] In the specific process, the flexible circuit board 211 needs to be bonded to the shape memory metal to facilitate the positioning and limiting of the flexible circuit board 211 during the second injection molding.

[0037] It should also be noted that directly bonding the flexible circuit board 211 to the shape memory metal component carries certain risks: repeated deformation of the product may damage the insulation layer on the surface of the flexible circuit board 211, leading to electrical disconnection or short circuit (unlike cables, which typically have an insulating sheath). Several methods can be used to address these issues, as follows: In the first method, a sleeve is inserted at the corresponding section where the shape memory metal and the flexible circuit board 211 are bonded; then the flexible circuit board 211 is bonded. Its advantage is that the sleeve can separate the flexible circuit board 211, thereby avoiding friction between the flexible circuit board 211 and the shape memory metal surface, mitigating the aforementioned risks. The disadvantage is that it adds a manual processing step, lacks consistency, and the covering layer is prone to loosening after application.

[0038] In the second method, on the side of the flexible circuit board 211 closest to the shape memory metal, an insulating reinforcing material layer is applied during the flexible circuit board manufacturing process. This reinforcing material layer is typically made of polyester film (PET) or polyimide (PI). By thickening and reinforcing one side of the flexible circuit board 211 with this reinforcing material layer, physical isolation between the flexible circuit board 211 and the shape memory metal is achieved, while also increasing the rigidity of the flexible circuit board 211, facilitating processing, improving efficiency, and ensuring consistency.

[0039] The third step is to install and secure the blocking structure 400 onto the cable sheath 300.

[0040] The fourth step is to perform a second injection molding on the entire assembly to form an outer coating layer on the surface.

[0041] Example 2 like Figure 1 , Figure 2 As shown, this application also proposes an audio device, including at least one earpiece, at least one main unit, at least one connecting frame 200, and at least one sealed wiring connection structure as described above. The functional component housing 100 can be either an earpiece housing 110 or a main unit housing 120. The connecting frame 200 connects the earpiece and the main unit, and a conductive connector 210 connects the earpiece and the main unit. The earpiece includes an earpiece housing 110, and the cable sheath 300 of the sealed wiring connection structure is integrally or detachably disposed on the earpiece housing 110; and / or, the main unit includes a main unit housing 120, and the cable sheath 300 of the sealed wiring connection structure is integrally or detachably disposed on the main unit housing 120.

[0042] For example, if the audio device is a pair of headphones, the left and right sides can be symmetrically designed, and the two sides are connected by a back hook. Let's take the structure of one side as an example.

[0043] In one embodiment, a shape memory metal component is integrally formed on the main unit housing. A cable sheath is injection-molded at the other end of the shape memory metal component. The main unit housing has through-holes and grooves, and the cable sheath also has through-holes. One end of the flexible circuit board passes through the through-holes and grooves on the main unit housing to connect to the main unit, while the other end passes through the through-hole on the cable sheath. The earpiece housing and the cable sheath are then assembled, allowing the other end of the flexible circuit board to enter the earpiece housing and connect to the earpiece. (Equivalent to the cable sheath at this end of the main unit housing being a single, integral part with the main unit housing.) In the second method, the main unit housing and the earpiece housing are integrally molded onto both ends of the memory metal component via injection molding. The main unit housing has through-holes and grooves, and the earpiece housing has grooves. One end of the flexible circuit board passes through the through-holes and grooves on the main unit housing to connect to the main unit, while the other end enters the earpiece housing through the groove to connect to the earpiece. (Equivalent to the cable sheath at the main unit housing end being a single unit with the main unit housing, and the cable sheath at the earpiece housing end being a single unit with the earpiece housing).

[0044] The third method involves installing independently assembleable cable protection sleeves on both the main unit casing and the earpiece casing.

[0045] The fourth method involves a cable protection sleeve that can be assembled independently on the main unit housing, with the cable protection sleeve on the earpiece housing and the earpiece housing being a single unit.

[0046] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A sealing-type cable routing connection structure, used to connect to a connecting frame and mounted on a functional component housing, characterized in that, The blocked wiring connection structure includes: A cable sheath is injection molded and connected to at least one end of the connecting frame and to the functional component housing. The cable sheath has a wiring position for connecting to the functional component housing and for inserting a conductive connector into the functional component housing. A blocking structure is used to block the wiring location.

2. The sealing-type wiring connection structure according to claim 1, characterized in that, The wiring location includes grooves and / or through holes; The blocking structure includes a blocking body, which is connected to the wire sheath to seal the groove and / or perforation.

3. The sealing-type wiring connection structure according to claim 2, characterized in that, When the wiring position includes a through hole, the plug body includes a sealing head that is embedded in the through hole.

4. The sealing-type wiring connection structure according to claim 2, characterized in that, The blocking structure also includes a positioning part, which is disposed on the blocking body and cooperates with the wire sheath to assemble and position the blocking body.

5. The sealing-type wiring connection structure according to claim 4, characterized in that, The positioning part includes a positioning post, and the cable sleeve has a positioning hole. The positioning post is positioned by being inserted into the positioning hole. Alternatively, the positioning part may include a positioning hole, and the cable sheath may have a positioning post.

6. The sealing-type wiring connection structure according to claim 2, characterized in that, A groove is provided in the wiring position, and the conductive connector is disposed in the groove. The sealing surface of the plug abuts against both sides of the settling tank to seal it.

7. The sealing-type wiring connection structure according to claim 2, characterized in that, The plug has an arc-shaped outer surface, which is connected to the outer surface of the wire sheath.

8. The sealing-type wiring connection structure according to any one of claims 1-7, characterized in that, The end of the connecting frame has an anti-detachment part, which is fixedly installed inside the cable protection sleeve.

9. The sealing-type wiring connection structure according to any one of claims 1-7, characterized in that, It also includes an outer covering layer, which covers the outer surfaces of the connecting frame, the conductive connector, the wire sheath, and the blocking structure.

10. An audio device, characterized in that, It includes at least one earpiece, at least one main unit, at least one connecting frame, and at least one sealed wiring connection structure as described in any one of claims 1-9; The connecting frame connects the earpiece and the main unit, and a conductive connector is connected between the earpiece and the main unit. The conductive connector is a flexible circuit board, a cable, or a combination of a flexible circuit board and a cable. The earpiece includes an earpiece housing, and the cable protection sleeve of the sealing cable connection structure is integrally or detachably mounted on the earpiece housing. And / or, The host includes a host housing, and the cable protection sleeve of the sealing cable connection structure is integrally or detachably installed on the host housing.

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