An electricity connection structure for a car headrest, a car headrest and a car

Abstract

The utility model belongs to the technical field of automobile accessories, provide a kind of for the power connection structure of automobile headrest, automobile headrest and car, power connection structure includes: headrest support, its one end is fixed with first power connection plug;Guide sleeve, it is fixed on the car seat, the second power connection plug of movable is arranged in the guide sleeve;Magnetic attraction piece, it is arranged on the first power connection plug and / or the second power connection plug;The headrest support has in the power connection position and power-off position of guide sleeve.Compared with prior art, the utility model is integrated first power connection plug on headrest support, the second power connection plug of movable is arranged in seat guide sleeve, and automatic adsorption connection is realized in combination with magnetic attraction piece, so that headrest is automatically powered when installing in place, automatically power-off when disassembling.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an electrical connection structure for automotive headrests, an automotive headrest, and an automotive. Background Technology

[0002] With the continuous improvement of automotive intelligence and comfort features, more and more functional electrical components are being integrated into car headrests. These include tablet displays for entertainment or work, speaker systems to enhance the driving experience, and massage devices with soothing functions. These electrical appliances typically require a stable power supply to function properly, and therefore must be electrically connected to the vehicle's power system via wires.

[0003] Currently, the common practice is to directly lead the electrical devices inside the headrest out via connecting wires and fix them to a power interface located on the seat or vehicle body. Since the headrest is generally mechanically fixed by inserting a support rod into a guide sleeve inside the seat, the corresponding electrical connection also depends on this installation state. In this structure, the electrical connection between the headrest and the seat mostly uses rigid plug-in or fixed wiring methods; once the headrest is installed, its connection to the power source is complete.

[0004] However, this traditional connection method has significant technical drawbacks: when the headrest needs to be removed from the seat (e.g., for cleaning the seat, replacing the headrest, or repairing wiring), the electrical connection must be manually disconnected first. Existing connection structures often lack automatic disconnection capabilities, making the disassembly and assembly process cumbersome and prone to damaging wires or connectors. More seriously, forcibly pulling out the headrest without disconnecting the power can damage the plug, cause a short circuit, or even affect the overall vehicle electrical safety. Furthermore, the presence of the connecting wires and the fixed power connection method limit the flexibility of using the headrest outside its installation location, making it impossible to safely and reliably maintain power supply or quickly restore the connection after the headrest is easily removed.

[0005] Therefore, how to achieve automatic power on / off during the installation and removal of headrests while ensuring power supply stability has become a pressing technical challenge in this field. Especially for smart headrests integrating multiple electronic devices, developing a reliable power connection structure that can automatically complete electrical connection and disconnection during insertion or removal and supports repeated insertion and removal has significant practical implications and application value. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a power connection structure for a car headrest, a car headrest, and a car, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a power connection structure for automobile headrests is proposed, including: a headrest support rod, one end of which is fixedly provided with a first power connection plug; A guide sleeve, which is fixed to the car seat, is provided with a movable second power connector inside the guide sleeve; A magnetic connector is provided on the first power connector and / or the second power connector; The headrest support rod has an electrical connection position and an electrical disconnect position within the guide sleeve; wherein... When the headrest support rod is inserted into the guide sleeve to the power connection position, the first power connection plug and the second power connection plug attract each other and form an electrical connection under the magnetic force of the magnetic suction component; When the headrest support rod is pulled out from the guide sleeve to the power-off position, the first power connector and the second power connector are removed from the magnetic force range of the magnetic suction component, thereby disconnecting the electrical connection.

[0008] In the aforementioned electrical connection structure for an automotive headrest, the magnetic component includes magnetic structures respectively disposed on the first electrical connector and the second electrical connector, and the magnetic structures attract each other.

[0009] In the aforementioned electrical connection structure for an automotive headrest, the magnet structure includes a permanent magnet, or a combination of a permanent magnet and a magnetic conductor.

[0010] In the above-mentioned electrical connection structure for an automobile headrest, a first insertion cavity and a second insertion cavity are formed inside the guide sleeve. The first insertion cavity is for the headrest support rod to be inserted into, and the second electrical connector is disposed in the second insertion cavity. An annular limiting part is provided between the first insertion cavity and the second insertion cavity, and the annular limiting part is in movable contact with the second electrical connector. The annular limiting part is configured to allow the first power plug and the second power plug to be electrically connected when the headrest support is in the power-on position, and to restrict the second power plug from moving out of the second insertion cavity when the headrest support moves from the power-on position to the power-off position.

[0011] In the aforementioned electrical connection structure for an automotive headrest, the first electrical plug and the second electrical plug are mutually compatible plug-in conductive interfaces.

[0012] In the aforementioned electrical connection structure for an automotive headrest, a guide structure is provided within the second plug cavity. The guide structure guides the movement direction of the second electrical plug so that the plug-in conductive interface can be accurately connected.

[0013] In the aforementioned electrical connection structure for an automotive headrest, the plug-in conductive interface includes: a concave interface disposed on the first electrical connector and a convex interface disposed on the second electrical connector, or a convex interface disposed on the first electrical connector and a concave interface disposed on the second electrical connector.

[0014] In the above-mentioned electrical connection structure for a car headrest, the end of the headrest support rod is provided with a plug notch, and the outer peripheral surface of the headrest support rod is provided with a first slot. The first power connector is provided with a plug block that matches the plug notch, and the outer peripheral surface of the plug block is provided with a second slot; When the plug is inserted into the plug notch, the first slot and the second slot align to form an annular slot, which is used to accommodate the elastic retaining ring that fixes the first power connector to the headrest support.

[0015] This utility model solves the above-mentioned technical problems and also proposes an automobile headrest, including the above-mentioned electrical connection structure for an automobile headrest.

[0016] This utility model solves the above-mentioned technical problems and also proposes a car, including the aforementioned car headrest.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) By integrating the first power connector on the headrest support rod and setting a movable second power connector inside the seat guide sleeve, and combining it with magnetic components to achieve automatic adsorption connection, the headrest is automatically powered on when installed and automatically powered off when removed. This design realizes an intelligent electrical connection method of "power on when installed and power off when removed", which does not require manual intervention in wiring operations, significantly improving the convenience and safety of use, and effectively avoiding the risks of wire pulling, interface damage or short circuit caused by forced disassembly. It is especially suitable for intelligent car headrest systems that integrate tablets, speakers, massagers and other devices that require continuous power supply.

[0019] (2) By setting mutually attractive magnetic structures on the two power plugs, an automatic guiding and adsorption effect can be generated during the docking process, so that the first power plug and the second power plug can be quickly aligned and tightly fitted when they are close together, which significantly improves the reliability and response speed of the electrical connection. At the same time, the attraction between the magnets can effectively compensate for mechanical assembly tolerances, reduce the alignment accuracy requirements of the headrest installation position, and enable users to achieve convenient "blind plug" connection without deliberately aligning the electrical interface when installing the headrest, which greatly improves the ease of operation and user experience.

[0020] (3) By designing the guide sleeve as a double cavity structure (the first insertion cavity is used for the insertion of the headrest support rod, and the second insertion cavity accommodates the second power plug), and setting an annular limiting part to axially limit the second power plug, it can effectively prevent it from accidentally coming out or shifting when no headrest is inserted. Attached Figure Description

[0021] Figure 1 This is a perspective view of an electrical connection structure for an automotive headrest according to this utility model.

[0022] Figure 2 yes Figure 1 A partial sectional view.

[0023] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0024] Figure 4 yes Figure 3 View with the guide sleeve and first power connector hidden.

[0025] Figure 5 This is a sectional view of the guide sleeve.

[0026] Figure 6 This is a 3D view of the second power connector.

[0027] Figure 7 This is a 3D view of the first power connector.

[0028] In the diagram, 100 is the headrest support rod; 110 is the first power connector; 120 is the concave structure; 130 is the insertion notch; 140 is the first slot; 150 is the elastic retaining ring; 160 is the insertion block; 170 is the second slot; 200 is the guide sleeve; 210 is the first insertion cavity; 220 is the second insertion cavity; 230 is the annular limiting part; 240 is the second power connector; and 250 is the convex interface. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] like Figures 1 to 7 As shown, the present invention provides an electrical connection structure for an automotive headrest, comprising: a headrest support rod 100, a guide sleeve 200, and a magnetic suction component.

[0032] Specifically, a first power connector 110 is fixedly provided at one end of the headrest support rod 100. One end of the first power connector 110 is electrically connected to an electrical appliance on the car headrest via an internal wire. The electrical appliance may be an electronic device such as a flat panel display, a speaker, or a massager.

[0033] In one embodiment, the headrest support rod 100 has a wire hole inside, through which the wire from the appliance is led to the first power plug 110 and electrically connected to it, thereby realizing the internal wiring of the power supply path and avoiding the exposure of external cables.

[0034] The guide sleeve 200 is fixedly installed on the car seat, and a movable second power connector 240 is provided inside it. One end of the second power connector 240 is connected to the vehicle's power supply via a wire, or to the power module of the vehicle's central control system, thereby providing stable power to the electrical appliances on the headrest.

[0035] The magnetic connector is used to automatically align and complete the electrical connection between the first power connector 110 and the second power connector 240. The magnetic connector can be installed separately on the first power connector 110 or the second power connector 240, and its installation position can be located inside the connector or around the outside of the connector; of course, the first power connector 110 and the second power connector 240 can also be respectively provided with mutually attractive magnetic structures to enhance the guidance and adsorption stability during docking.

[0036] In this design, the headrest support rod 100 has two working positions within the guide sleeve 200: an energized position and a de-energized position. When the headrest support rod 100 is inserted into the guide sleeve 200 and reaches the energized position, the first energized plug 110 and the second energized plug 240 automatically approach and tightly attract each other under the magnetic force of the magnetic attractor, achieving a reliable electrical connection. When the headrest support rod 100 is pulled out of the guide sleeve 200 to the de-energized position, the distance between the two energized plugs exceeds the effective range of the magnetic force, and the two automatically separate, thereby cutting off the circuit.

[0037] This structure integrates a first power connector 110 on the headrest support rod 100 and a movable second power connector 240 within the seat guide sleeve 200, achieving automatic magnetic connection. This allows the headrest to be automatically powered on when installed and automatically powered off when removed. This design realizes an intelligent electrical connection method of "power on upon installation, power off upon removal," eliminating the need for manual wiring operations. This significantly improves ease of use and safety, effectively avoiding risks such as wire pulling, interface damage, or short circuits caused by forced disassembly. It is particularly suitable for intelligent automotive headrest systems that integrate tablets, speakers, massagers, and other components requiring continuous power.

[0038] The magnetic component includes magnetic structures respectively disposed on the first power connector 110 and the second power connector 240, and the magnetic structures attract each other.

[0039] By incorporating mutually attractive magnetic structures on the two power connectors, an automatic guiding and adsorption effect is achieved during the docking process. This allows the first power connector 110 and the second power connector 240 to quickly align and fit tightly upon approach, significantly improving the reliability and response speed of the electrical connection. Simultaneously, the attractive force between the magnets effectively compensates for mechanical assembly tolerances, reducing the alignment accuracy requirements for the headrest installation position. This allows users to achieve a convenient "blind-plug" connection without needing to deliberately align the electrical interfaces during headrest installation, greatly enhancing operational convenience and user experience.

[0040] Furthermore, the magnet structure includes permanent magnets, or a combination of permanent magnets and magnetic conductors.

[0041] By employing permanent magnets or a combination of permanent magnets and magnetic conductors, sufficient magnetic attraction can be ensured while reasonably controlling cost and structural dimensions. Permanent magnets provide a stable and persistent magnetic field, enabling automatic attraction without external power supply; while combining them with magnetic conductors (such as iron sheets) enhances local magnetic flux density, increasing attraction strength while reducing the amount of permanent magnets required. This design flexibly adapts to headrest electrical devices with varying power requirements, balancing high reliability and economy, and avoids the additional control circuitry required for electromagnets, simplifying the overall structure and improving system durability.

[0042] The guide sleeve 200 forms a first insertion cavity 210 and a second insertion cavity 220. The first insertion cavity 210 is for the headrest support rod 100 to be inserted into. The second power connector 240 is disposed in the second insertion cavity 220. An annular limiting part 230 is provided between the first insertion cavity 210 and the second insertion cavity 220. The annular limiting part 230 is in movable contact with the second power connector 240. The annular limiting part 230 is configured to allow the first power connector 110 and the second power connector 240 to be electrically connected when the headrest support rod 100 is in the power-on position, and to restrict the second power connector 240 from moving out of the second insertion cavity 220 when the headrest support rod 100 moves from the power-on position to the power-off position.

[0043] By designing the guide sleeve 200 as a dual-cavity structure (the first insertion cavity 210 for inserting the headrest support 100, and the second insertion cavity 220 accommodating the second power connector 240), and providing an annular limiting part 230 to axially limit the second power connector 240, it effectively prevents it from accidentally dislodging or shifting when the headrest is not inserted. When the headrest is inserted to the power connection position, the annular limiting part 230 allows the first and second power connectors 240 to smoothly connect; while when the headrest is pulled out, it prevents the second power connector 240 from disengaging, ensuring that it remains stably inside the guide sleeve 200. This structure improves the positioning accuracy and service life of the second power connector 240, avoids poor contact or component loss due to loosening, and ensures the long-term stable operation of the entire power connection system.

[0044] The first power connector 110 and the second power connector 240 are mutually compatible plug-in conductive interfaces.

[0045] The use of mutually matching plug-in conductive interfaces allows the two electrical plugs to precisely align under magnetic attraction, forming a low-resistance, highly stable electrical connection. This effectively transmits current to meet the power supply needs of various electrical appliances within the headrest (such as speakers, heating elements, and control modules). Compared to conductive methods that rely solely on surface contact, the plug-in structure offers stronger vibration and loosening resistance, making it suitable for the complex vibration environments encountered during vehicle operation and significantly improving the safety and durability of the electrical connection.

[0046] The second insertion cavity 220 is provided with a guide structure, which is used to guide the movement direction of the second electrical plug 240 to ensure that the plug-in conductive interface can be accurately connected.

[0047] In a preferred embodiment, the guide structure can achieve sliding guidance and anti-rotation functions by designing the inner cross-section of the second insertion cavity 220 as a polygon (such as a rectangle, ellipse or regular polygon), and correspondingly, setting the outer periphery shape of the second power connector 240 as a matching polygonal structure.

[0048] By providing a guide structure within the second insertion cavity 220, the second electrical connector 240 can be effectively constrained to move along a predetermined axial path, preventing rotation or lateral displacement during magnetic attraction and ensuring correct spatial alignment between the first electrical connector 110 and the second electrical connector 240 during mating. This guide mechanism significantly improves the alignment accuracy of the insertion interface and reduces the risks of poor contact, localized overheating, or mechanical wear caused by misalignment. Even under conditions of assembly tolerances or vibration and bumps during vehicle operation, a stable and reliable electrical connection can be maintained, thereby enhancing the robustness and long-term durability of the entire electrical connection structure.

[0049] The plug-in conductive interface includes: a concave interface provided on the first power connector 110 and a convex interface 250 provided on the second power connector 240, or a convex interface provided on the first power connector 110 and a concave interface provided on the second power connector 240.

[0050] The use of a concave-convex mating interface (such as a male-female plug-in structure) not only improves the guidance and bonding strength during the insertion process but also effectively prevents single-point contact or incomplete connections. The concave interface provides a protective enclosure for the convex interface 250, reducing the intrusion of external dust and moisture, and improving electrical insulation performance and environmental adaptability. Furthermore, this structure facilitates multi-pin integration, supports combined signal and power transmission, and is suitable for the complex electrical requirements of multifunctional smart headrests, while also possessing good mechanical strength and insertion / removal life.

[0051] The headrest support rod 100 has a notch 130 at its end and a first groove 140 on its outer circumferential surface. The first power plug 110 has a plug block 160 that matches the notch 130 and a second groove 170 on its outer circumferential surface. When the plug block 160 is inserted into the notch 130, the first groove 140 and the second groove 170 are aligned to form an annular groove for accommodating the elastic retaining ring 150 that fixes the first power plug 110 to the headrest support rod 100.

[0052] By providing a notch 130 and a first slot 140 on the headrest support 100, and cooperating with the plug block 160 and the second slot 170 on the first power connector 110, precise positioning of the plug block 160 and the notch is achieved. An elastic retaining ring 150 is then installed through the annular slot formed by the alignment of the two, thus firmly fixing the first power connector 110 to the end of the headrest support 100. This connection method is simple in structure and easy to assemble and disassemble, requiring no screws or other fasteners. It ensures the stability of the first power connector 110 during frequent plugging and unplugging, facilitates later maintenance and replacement, and avoids irreversible assembly problems caused by gluing or welding, thus improving manufacturing efficiency and maintenance convenience.

[0053] This solution also proposes an automotive headrest, including the aforementioned power connection structure.

[0054] This solution also proposes a car that includes the aforementioned car headrest.

[0055] This solution provides an automatic power connection structure for automotive headrests and its application in automotive headrests and automobiles. It aims to solve the technical problems in the prior art where headrests integrating electrical devices such as tablets, speakers, and massagers cannot be easily disassembled due to their reliance on fixed wiring connections, and there is a risk of wiring damage.

[0056] By setting a first power connector 110 on the headrest support rod 100 and configuring a movable second power connector 240 inside the seat guide sleeve 200, combined with the automatic adsorption of magnetic components, an intelligent electrical connection mode is achieved where the headrest is powered on when inserted and powered off when removed. When the headrest is installed in place, the two power connectors precisely align under magnetic guidance, forming a stable electrical connection; when disassembled, they automatically separate, completely eliminating the constraints of cables.

[0057] Furthermore, the design of the double-cavity guide sleeve 200, the annular limiting part 230, the guide structure, and the interlocking interface with concave and convex fit improves the docking accuracy and connection reliability, effectively resisting vibration and impact during vehicle operation; the use of permanent magnets or a combination of permanent magnets and magnetic conductors ensures stable and lasting adsorption force; and the structure of the plug block 160 and the elastic retaining ring 150 enables the first power connector 110 to be firmly fixed on the support rod, facilitating assembly and maintenance.

[0058] This solution not only significantly improves the safety, convenience, and durability of the electrical connections in automotive headrests, but also supports the free disassembly and temporary use of the headrests, expanding their functional application scenarios. The proposed power connection structure can be widely applied to multifunctional headrests in smart cockpits and ultimately integrated into the entire vehicle system, enhancing the intelligence level of automotive interiors and user experience. It has advantages such as reasonable structure, controllable cost, and ease of promotion, and possesses good industrialization prospects.

[0059] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0061] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A power connection structure for an automobile headrest, characterized in that, include: The headrest support rod has a first power connector fixed at one end; A guide sleeve, which is fixed to the car seat, is provided with a movable second power connector inside the guide sleeve; A magnetic connector is provided on the first power connector and / or the second power connector; The headrest support rod has an electrical connection position and an electrical disconnect position within the guide sleeve; wherein... When the headrest support rod is inserted into the guide sleeve to the power connection position, the first power connection plug and the second power connection plug attract each other and form an electrical connection under the magnetic force of the magnetic suction component; When the headrest support rod is pulled out from the guide sleeve to the power-off position, the first power connector and the second power connector are removed from the magnetic force range of the magnetic suction component, thereby disconnecting the electrical connection.

2. The electrical connection structure for an automotive headrest as described in claim 1, characterized in that, The magnetic component includes magnetic structures respectively disposed on the first power connector and the second power connector, and the magnetic structures attract each other.

3. The electrical connection structure for an automobile headrest as described in claim 2, characterized in that, The magnet structure includes a permanent magnet, or a combination of a permanent magnet and a magnetic conductor.

4. The electrical connection structure for an automobile headrest as described in claim 1, characterized in that, The guide sleeve forms a first insertion cavity and a second insertion cavity. The first insertion cavity is for the headrest support rod to be inserted into. The second power connector is disposed in the second insertion cavity. An annular limiting part is provided between the first insertion cavity and the second insertion cavity. The annular limiting part is in movable contact with the second power connector. The annular limiting part is configured to allow the first power plug and the second power plug to be electrically connected when the headrest support is in the power-on position, and to restrict the second power plug from moving out of the second insertion cavity when the headrest support moves from the power-on position to the power-off position.

5. The electrical connection structure for an automobile headrest as described in claim 4, characterized in that, The first power connector and the second power connector are mutually compatible plug-in conductive interfaces.

6. The electrical connection structure for an automobile headrest as described in claim 5, characterized in that, The second plug cavity is provided with a guide structure, which is used to guide the movement direction of the second electrical plug so that the plug-in conductive interface can be accurately connected.

7. The electrical connection structure for an automobile headrest as described in claim 5, characterized in that, The plug-in conductive interface includes: a concave interface disposed on the first power connector and a convex interface disposed on the second power connector, or a convex interface disposed on the first power connector and a concave interface disposed on the second power connector.

8. The electrical connection structure for an automobile headrest as described in claim 1, characterized in that, The headrest support rod has an insertion notch at its end and a first slot on its outer circumferential surface. The first power connector is provided with a plug block that matches the plug notch, and the outer peripheral surface of the plug block is provided with a second slot; When the plug is inserted into the plug notch, the first slot and the second slot align to form an annular slot, which is used to accommodate the elastic retaining ring that fixes the first power connector to the headrest support.

9. A car headrest, characterized in that, Including a power connection structure for an automobile headrest as described in any one of claims 1 to 8.

10. A car, characterized in that, Including a car headrest as described in claim 9.

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