Vehicle audio harness and vehicle audio assembly harness

Abstract

The present disclosure provides a kind of car audio harness and car audio assembly line, the harness includes power terminal and multiple car audio wiring, each car audio wiring includes insulating coating, plug rubber block, inner wire, inner film, left channel terminal and right channel terminal, insulating coating and inner film are covered the inner wire, head rubber block is used to correspond to be set in injection cavity, injection cavity includes left cavity, middle cavity and right cavity, plug rubber block includes left rubber part, middle rubber part and right rubber part, left rubber part is located in left cavity, middle rubber part is located in middle cavity, right rubber part is located in right cavity, middle rubber part is provided with positioning hole, positioning hole is used to wear positioning column, to make positioning column resist inner film, prevent the structure from deviating, left cavity, middle cavity and right cavity are injected with plastic melt glue simultaneously, to make the plastic after completion is shaped as sound plug, and structure symmetry, this can guarantee the normal work of car audio.

Description

Technical Field

[0001] This disclosure relates to the fields of injection molding production and automotive wiring harness technology, and in particular to an automotive audio wiring harness and automotive audio assembly wire. Background Technology

[0002] In existing technologies, the plugs in car audio wiring harnesses are generally connected to the power terminals via wires, then injection molded, and finally packaged and sold as part of the car audio assembly for use in car audio systems.

[0003] Current injection molding solutions for car audio plugs have limitations. Due to the plug's large size, precise control of the molten plastic flow and filling during injection molding is difficult, leading to discrepancies between the overall plug dimensions and design requirements. Additionally, wire misalignment can occur during injection molding, causing a structural shift and resulting in an uneven structure after injection molding. Consequently, poor contact may occur between the car audio assembly wires and the car audio port during subsequent use. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a car audio wiring harness and car audio assembly wire that will not shift during the injection molding process and has a neat plug structure after injection molding.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A vehicle audio wiring harness includes a power terminal and multiple vehicle audio connectors. The power terminal is used for electrical connection to a vehicle power module. Each vehicle audio connector includes an insulating layer, a plug insulated block, an inner wire, an inner membrane, a left channel terminal, and a right channel terminal. One end of the inner wire of each vehicle audio connector is electrically connected to the power terminal. The insulating layer and the inner membrane both cover the inner wire. The plug insulated block covers the inner membrane and also partially covers the left and right channel terminals. The other end of the inner wire is electrically connected to the left and right channel terminals, respectively. For use in corresponding injection cavities within an injection molding device, wherein the injection cavities include a left cavity, a middle cavity, and a right cavity connected in sequence, the left cavity and the right cavity being symmetrically arranged, the plug-in rubber-coated block including a left rubber-coated portion, a middle rubber-coated portion, and a right rubber-coated portion connected in sequence, the left rubber-coated portion being located in the left cavity, the middle rubber-coated portion being located in the middle cavity, and the right rubber-coated portion being located in the right cavity, the middle rubber-coated portion having a positioning hole for a positioning post within the injection molding device to pass through, so that the positioning post abuts against the inner membrane, the left channel terminal being located in the left rubber-coated portion, and the right channel terminal being located in the right rubber-coated portion.

[0007] In one embodiment, the plug-in rubber block has an anti-slip surface.

[0008] In one embodiment, the anti-slip surface is disposed on the intermediate rubber coating portion.

[0009] In one embodiment, the inner conductor includes a left acoustic conductor and a right acoustic conductor, one end of which is electrically connected to the power terminal, the other end of which is electrically connected to the left channel terminal, and the other end of which is electrically connected to the right channel terminal. The insulating coating layer and the inner membrane both cover the left acoustic conductor and the right acoustic conductor.

[0010] In one embodiment, the inner conductor further includes a grounding conductor, one end of which is electrically connected to the power supply terminal, and the other end of which is connected to the grounding portion of the left channel terminal and the grounding portion of the right channel terminal, respectively. The insulating covering layer and the inner film both cover the grounding conductor.

[0011] In one embodiment, the plug-in rubber block further includes an anti-pull protection part, which is connected to the intermediate rubber part and covers a portion of the insulating coating layer.

[0012] In one embodiment, the length of the anti-tear protection part is 2cm-4cm.

[0013] In one embodiment, the left rubber coating portion, the middle rubber coating portion, the right rubber coating portion, and the anti-tear protection portion are integrally injection molded.

[0014] In one embodiment, the vehicle audio wiring harness further includes a breakage protection block, which has a number of connection holes equal to the number of vehicle audio wires. The insulation layer of each vehicle audio wire passes through the corresponding connection hole, so that each vehicle audio wire is connected to the breakage protection block.

[0015] A vehicle audio assembly wire includes the vehicle audio wiring harness described in the above embodiments.

[0016] Compared with the prior art, this disclosure has at least the following advantages:

[0017] 1. In the above-mentioned vehicle audio wiring harness, during the injection molding of the plug, the structure with inner diaphragm, inner wire, left channel terminal and right channel terminal is first placed into the injection cavity of the injection molding device. Then, the positioning post holds the inner diaphragm to prevent the structure from shifting and affecting the injection molding process and effect. After fixing the structure, the injection molding step is carried out, which can produce an audio plug that meets the design requirements, thereby ensuring the product qualification rate.

[0018] 2. Because the left cavity and the right cavity in the injection molding device are symmetrically arranged, and the positioning post holds the inner lining to prevent displacement, during injection molding, molten plastic is injected into the left cavity, the middle cavity and the right cavity at the same time. This ensures that the plastic is molded into an audio plug after the injection molding is completed, and the left and right parts of the audio plug are symmetrical, that is, the structure is neat. This can ensure that the car audio assembly wires are properly connected to the car audio port, and ensure the normal operation of the car audio system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a vehicle audio wiring harness in one embodiment;

[0021] Figure 2 for Figure 1 The enlarged view of the car audio wiring harness at point A is shown.

[0022] Figure 3 for Figure 1 The diagram shows a partial structural schematic of the vehicle audio wiring harness at an angle.

[0023] Figure 4 for Figure 3 The diagram shows a partial structural schematic of the vehicle audio wiring harness before injection molding.

[0024] Figure 5 for Figure 1 The diagram shows the structure of the anti-breakage protection block in the vehicle audio wiring harness.

[0025] Figure 6 for Figure 1 The image shown corresponds to the actual vehicle audio wiring harness.

[0026] Figure 7 for Figure 6 The image shown is a partial view of the car audio wiring harness at an angle.

[0027] Reference numerals: 10, Car audio wiring harness; 100, Power terminal; 200, Car audio wiring; 210, Insulating layer; 220, Plug insulated block; 2201, Anti-slip surface; 221, Left insulated part; 222, Middle insulated part; 2221, Positioning hole; 223, Right insulated part; 224, Anti-pull protection part; 230, Inner wire; 231, Left acoustic wire; 232, Right acoustic wire; 233, Grounding wire; 240, Inner membrane; 250, Left channel terminal; 260, Right channel terminal; 300, Anti-breakage protection block; 301, Connection hole. Detailed Implementation

[0028] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0032] Please see Figure 1 This is an embodiment of the vehicle audio wiring harness 10, which includes a power terminal 100 and multiple vehicle audio connectors 200. The power terminal 100 is used for electrical connection to the vehicle power module. Figure 3 and Figure 4As shown, each car audio wiring harness 200 includes an insulating layer 210, a plug insulated block 220, an inner wire 230, an inner membrane 240, a left channel terminal 250, and a right channel terminal 260. One end of the inner wire 230 of each car audio wiring harness 200 is electrically connected to the power terminal 100. The insulating layer 210 and the inner membrane 240 both cover the inner wire 230. The plug insulated block 220 covers the inner membrane 240 and also partially covers the left channel terminal 250 and the right channel terminal 260. The other end of the inner wire 230 is electrically connected to the left channel terminal 250 and the right channel terminal 260, respectively. The plug insulated block 220 is used to correspondingly set the plug insulated block 260. The injection molding device includes an injection molding cavity comprising a left cavity, a middle cavity, and a right cavity connected in sequence, with the left and right cavities arranged symmetrically. The plug-in rubber-coated block 220 includes a left rubber-coated portion 221, a middle rubber-coated portion 222, and a right rubber-coated portion 223 connected in sequence. The left rubber-coated portion 221 is located in the left cavity, the middle rubber-coated portion 222 is located in the middle cavity, and the right rubber-coated portion 223 is located in the right cavity. The middle rubber-coated portion 222 has a positioning hole 2221 for inserting a positioning post within the injection molding device, so that the positioning post abuts against the inner membrane 240. The left channel terminal 250 is located in the left rubber-coated portion 221, and the right channel terminal 260 is located in the right rubber-coated portion 223. Specifically, the positioning post is located within the middle cavity.

[0033] It is understandable that the structural state diagram before injection molding is as follows: Figure 4 As shown, the injection molding process has not yet been performed to form the plug-in plug 220. During the plug injection molding process, the structure containing the inner membrane 240, inner wire 230, left channel terminal 250, and right channel terminal 260 is first placed into the injection cavity of the injection molding device. Then, the positioning post holds the inner membrane 240 to prevent displacement, which would affect the injection molding process and effect. After fixing the structure, the injection molding step is performed, which can produce an audio plug that conforms to the design requirements, thus ensuring the product's pass rate. Furthermore, because the left cavity and the right cavity in the injection molding device are symmetrically arranged, and the positioning post holds the inner membrane 240 to prevent displacement, during injection molding, molten plastic is injected simultaneously into the left cavity, the middle cavity, and the right cavity. This ensures that the plastic is molded into an audio plug, and the left and right parts of the audio plug are symmetrical, resulting in a neat structure. This ensures proper wiring between the vehicle audio assembly wires and the vehicle audio ports, guaranteeing the normal operation of the vehicle audio system. Furthermore, when molten plastic is injected into the left cavity, the middle cavity, and the right cavity simultaneously, the injection speed of molten plastic into the left cavity is equal to that into the middle cavity and the right cavity, so as to ensure that the structure of the plug-in plastic block 220 after molding is neat and that the structure of the left and right parts is symmetrical, that is, the left plastic block 221 and the right plastic block 223 are symmetrical.

[0034] like Figure 6 and Figure 7This is a picture of the actual car audio wiring harness 10, in which... Figure 6 This is a picture of the entire car audio wiring harness 10. Figure 7 The key features are reflected in the specific structure of the plug-in rubber block 220, so that those skilled in the art can understand it.

[0035] like Figure 1 and Figure 3 As shown, in one embodiment, the plug-in rubber block 220 is provided with an anti-slip surface 2201. In this embodiment, the anti-slip surface 2201 is provided on both sides of the plug-in rubber block 220. It can be understood that when the car audio wiring harness 10 is inserted into or removed from the car audio port, the plug-in rubber block 220 will be held by hand. The anti-slip surface 2201 increases the friction between the hand and the plug-in rubber block 220, preventing slippage between them, thus facilitating the insertion or removal of the car audio wiring harness 10. Furthermore, the anti-slip surface 2201 is provided in the middle rubber-coated portion 222 to provide sufficient contact area between the hand and the anti-slip surface 2201.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment, the inner conductor 230 includes a left acoustic conductor 231 and a right acoustic conductor 232. One end of both the left acoustic conductor 231 and the right acoustic conductor 232 is electrically connected to the power terminal 100. The other end of the left acoustic conductor 231 is electrically connected to the left channel terminal 250, and the other end of the right acoustic conductor 232 is electrically connected to the right channel terminal 260. The insulating covering layer 210 and the inner membrane 240 both cover the left acoustic conductor 231 and the right acoustic conductor 232. Specifically, when the power terminal 100 is powered on, when the left channel terminal 250 is connected to the left channel port of the vehicle audio system, communication between the vehicle power module and the left channel audio system can be realized, and the left acoustic conductor 231 transmits signals. When the right channel terminal 260 is connected to the right channel port of the vehicle audio system, communication between the vehicle power module and the right channel audio system can be realized, and the right acoustic conductor 232 transmits audio signals. Furthermore, the inner conductor 230 also includes a grounding conductor 233. One end of the grounding conductor 233 is electrically connected to the power terminal 100, and the other end is connected to the grounding portion of the left channel terminal 250 and the grounding portion of the right channel terminal 260, respectively. The insulating covering layer 210 and the inner membrane 240 both cover the grounding conductor 233. It can be understood that when the left channel terminal 250 is connected to the left channel port of the car audio system, and / or the right channel terminal 260 is connected to the right channel port of the car audio system, the left audio conductor 231 and / or the right audio conductor 232 are electrically conductive, and audio signal transmission occurs during operation. When leakage occurs inside the car audio system, the leakage current will be conducted to the ground through the grounding conductor 233 to avoid contact accidents and ensure the safe use of the car audio system.

[0037] like Figure 3 As shown, in one embodiment, the plug-in rubber block 220 further includes an anti-pull protection part 224, which is connected to the intermediate rubber block 222. The anti-pull protection part 224 covers part of the structure of the insulating coating layer 210. It is understood that when the anti-pull protection part 224 covers the insulating coating layer 210, after repeated bending or pulling of the insulating coating layer 210 near the plug-in rubber block 220, structural fatigue may occur, such as outer layer cracking or even exposure of the inner wire 230. Therefore, to prevent this from happening, the anti-pull protection part 224 covers the insulating coating layer 210, especially near the position of the insulating coating layer 210 near the plug-in rubber block 220, to prevent structural damage. In another embodiment, the injection molding cavity further includes a protective injection molding cavity, which is connected to the intermediate cavity, and the anti-pull protection part 224 is located in the protective injection molding cavity.

[0038] Furthermore, the length of the anti-tear protection part 224 is 2cm-4cm. In this embodiment, the length of the anti-tear protection part 224 is 3cm.

[0039] Furthermore, the left rubber-coated part 221, the middle rubber-coated part 222, the right rubber-coated part 223, and the anti-tear protection part 224 are integrally injection molded, so that the structure can be formed in only one injection molding step during the processing and production process, without secondary processing, and the connection between each part is more reliable.

[0040] like Figure 5 As shown, in one embodiment, the vehicle audio wiring harness 10 further includes a breakage protection block 300. The breakage protection block 300 has a number of connection holes 301 equal to the number of vehicle audio wiring 200. The insulation layer 210 of each vehicle audio wiring 200 passes through the corresponding connection hole 301, so that each vehicle audio wiring 200 is connected to the breakage protection block 300. This allows each vehicle audio wiring 200 to be electrically connected to the power terminal 100 after passing through the corresponding connection hole 301. At the same time, it can also prevent any one or more vehicle audio wiring 200 from being broken from the power terminal 100, ensuring the reliability of the connection between the product and the vehicle audio system.

[0041] This disclosure also provides a vehicle audio assembly wire, including the vehicle audio wiring harness 10 in the above embodiments.

[0042] Compared with the prior art, this disclosure has at least the following advantages:

[0043] 1. In the above-mentioned vehicle audio wiring harness 10, during the injection molding operation of the plug, the structure with inner membrane 240, inner wire 230, left channel terminal 250 and right channel terminal 260 is first placed into the injection cavity of the injection molding device. Then, the positioning post holds the inner membrane 240 to prevent the structure from shifting and affecting the injection molding process and effect. After fixing the structure, the injection molding step is carried out, which can produce an audio plug that meets the design requirements, thereby ensuring the product qualification rate.

[0044] 2. Because the left and right cavities in the injection molding device are symmetrically arranged, and the positioning post holds the inner membrane 240 to prevent displacement, plastic molten material is injected into the left, middle, and right cavities simultaneously during injection molding. This ensures that the finished plastic is molded into an audio plug, and the left and right parts of the audio plug are symmetrical, resulting in a neat structure. This ensures that the car audio assembly wires are properly connected to the car audio ports, guaranteeing the normal operation of the car audio system.

[0045] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A vehicle audio wiring harness, comprising power terminals and multiple vehicle audio connectors, wherein the power terminals are used for electrical connection to a vehicle power module, characterized in that, Each of the aforementioned vehicle audio wiring harnesses includes an insulating sheath, a plug insulated block, an inner wire, an inner diaphragm, a left channel terminal, and a right channel terminal. One end of the inner wire of each of the aforementioned vehicle audio wiring harnesses is electrically connected to the power terminal. The insulating sheath and the inner diaphragm both cover the inner wire. The plug insulated block covers the inner diaphragm, and the plug insulated block also partially covers the left channel terminal and the right channel terminal. The other end of the inner wire is electrically connected to the left channel terminal and the right channel terminal, respectively. The plug-in rubber block is used to correspond to the injection cavity in the injection molding device. The injection cavity includes a left cavity, a middle cavity, and a right cavity that are connected in sequence. The left cavity and the right cavity are symmetrically arranged. The plug-in rubber block includes a left rubber part, a middle rubber part, and a right rubber part that are connected in sequence. The left rubber part is located in the left cavity, the middle rubber part is located in the middle cavity, and the right rubber part is located in the right cavity. The middle rubber part has a positioning hole for a positioning post in the injection molding device to pass through, so that the positioning post abuts against the inner membrane. The left channel terminal is located in the left rubber part, and the right channel terminal is located in the right rubber part.

2. The vehicle audio wiring harness according to claim 1, characterized in that, The plug-in rubber block has an anti-slip surface.

3. The vehicle audio wiring harness according to claim 2, characterized in that, The anti-slip surface is provided in the intermediate rubber coating section.

4. The vehicle audio wiring harness according to claim 1, characterized in that, The inner conductor includes a left acoustic conductor and a right acoustic conductor. One end of each of the left and right acoustic conductors is electrically connected to the power terminal. The other end of the left acoustic conductor is electrically connected to the left channel terminal, and the other end of the right acoustic conductor is electrically connected to the right channel terminal. The insulating coating layer and the inner membrane both cover the left and right acoustic conductors.

5. The vehicle audio wiring harness according to claim 4, characterized in that, The inner conductor also includes a grounding conductor, one end of which is electrically connected to the power supply terminal, and the other end of which is connected to the grounding portion of the left channel terminal and the grounding portion of the right channel terminal, respectively. The insulating coating layer and the inner film both cover the grounding conductor.

6. The vehicle audio wiring harness according to claim 1, characterized in that, The plug-in rubber block also includes an anti-pull protection part, which is connected to the intermediate rubber part and covers part of the insulating coating layer.

7. The vehicle audio wiring harness according to claim 6, characterized in that, The length of the anti-tear protection part is 2cm-4cm.

8. The vehicle audio wiring harness according to claim 6, characterized in that, The left rubber coating, the middle rubber coating, the right rubber coating, and the anti-tear protection part are integrally injection molded.

9. The vehicle audio wiring harness according to claim 1, characterized in that, The vehicle audio wiring harness also includes a breakage protection block. The breakage protection block has a number of connection holes equal to the number of vehicle audio wires. The insulation layer of each vehicle audio wire passes through the corresponding connection hole so that each vehicle audio wire is connected to the breakage protection block.

10. A vehicle audio assembly wire, characterized in that, Includes the vehicle audio wiring harness as described in any one of claims 1-9.

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