Plug-in power-taking headrest light field screen

Abstract

The invention belongs to the field of headrest insertion and extraction, and provides a headrest light field screen capable of taking electricity in an insertion and extraction mode, which comprises a headrest body, a light source module and a power supply module, the power source connecting piece is used for being connected with the light field screen and arranged at the tail end of the headrest supporting rod, and a bayonet socket is formed in the power source connecting piece; the connector assembly is installed in the seat, a connecting plug is arranged in the connector assembly, and the end of the connecting plug extends in the axis direction of the connecting plug to form an extension plug. Compared with the prior art, the connecting structure has the advantages that the extension plug is formed at the end part of the connecting plug, so that the length tolerance of the headrest stay bar and the assembly tolerance when the headrest stay bar is mounted into a seat can be effectively compensated by utilizing the extension plug, and the stable connection between the bayonet socket and the connecting plug is ensured; the problem of unstable power transmission caused by poor contact is avoided, the reliability of the overall structure is improved, the service life of the overall structure is prolonged, and it is ensured that the use experience of a user is not affected.

Description

Technical Field

[0001] The invention belongs to the field of plug-in and pull-out headrests, and in particular relates to a plug-in power-taking headrest light field screen. Background Art

[0002] With the development of automobile intelligence, in-vehicle display systems have become an indispensable part of modern vehicles, not only providing entertainment and information functions, but also gradually becoming a key component to enhance driving safety and comfort.

[0003] In recent years, light field display technology has attracted much attention because it can provide realistic three-dimensional images and reduce visual fatigue caused by long-term viewing. In particular, the application of light field screens is growing rapidly in high-end vehicles. In the use of headrest light field screens, the height of the pillow surface and the viewing angle have covered most people. However, due to the length tolerance of the headrest support rod and the assembly tolerance when installed in the seat, it is very easy to cause the plug connector and the socket to fail to be accurately plugged in place, resulting in insensitive power contact, which in turn affects the normal use of the headrest light field screen and reduces the user experience. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a headrest light field screen with plug-in power supply.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a plug-in power-taking headrest light field screen, comprising: a headrest body, on which a headrest support rod is arranged; A power connector for connecting the light field screen, which is arranged at the end of the headrest support rod, and a socket is formed in the power connector; A connector is installed inside the seat, wherein a plug connector is provided inside the connector, and an end of the plug connector is extended along the axial direction thereof to form an extension plug; When the headrest support rod drives the socket to be movably inserted into the plug connector, the extension plug can allow the plug connector to maintain contact and communication with the socket to compensate for the manufacturing tolerance of the headrest support rod.

[0006] In the above-mentioned plug-in power supply headrest light field screen, the power supply connector also includes: a mounting seat, which extends into the headrest support rod and is connected to the end of the headrest support rod, and the plug-in seat is connected to the mounting seat; A socket connection line passes through the mounting seat and is connected to the plug socket, a first terminal is formed on the socket connection line, a headrest power line extending into the headrest support rod is connected to the headrest body, a second terminal is formed on the headrest power line, and the first terminal is movably pressed against the second terminal.

[0007] In the above-mentioned plug-in power-taking headrest light field screen, the length of the extension plug is 3 mm.

[0008] In the above-mentioned plug-in power-taking headrest light field screen, a limiting portion and a snap-on portion are respectively formed at both ends of the mounting seat, and the limiting portion can move synchronously with the mounting seat and movably abut against the end of the headrest support rod; a snap-on groove is formed on the inner wall of the headrest support rod, and the snap-on portion is movably snapped into the snap-on groove.

[0009] In the above-mentioned plug-in power-taking headrest light field screen, the connector also includes a fixing block, a contoured cavity is formed in the fixing block, and the plug connector is arranged in the contoured cavity to limit the shaking of the plug connector.

[0010] In the above-mentioned plug-in power-taking headrest light field screen, a guide groove connected to the contoured cavity is also formed in the fixed block, and the extension plug is arranged at the center position of the guide groove. The guide groove is used to guide the headrest support rod to be movably inserted in the fixed block so that the socket and the extension plug can be in contact and connected.

[0011] In the above-mentioned plug-in power-taking headrest light field screen, the fixing block includes a first connecting block and a second connecting block that are detachably connected, and the first connecting block and the second connecting block are used to movably press against each other to form the contoured cavity.

[0012] In the above-mentioned plug-in power-taking headrest light field screen, a trumpet mouth is formed at one end of the guide groove away from the contoured cavity, and a large end of the trumpet mouth opens toward the headrest support rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The headrest light field screen with plug-in power supply of the present invention forms an extension plug at the end of the plug connector. The extension plug can effectively compensate for the length tolerance of the headrest support rod and the assembly tolerance when installed in the seat, ensuring a stable connection between the socket and the plug connector, avoiding the problem of unstable power transmission caused by poor contact, improving the overall structural reliability and service life, and ensuring that the user experience is not affected.

[0014] (2) The first terminal on the socket connecting line is pre-tightened with the second terminal on the headrest power line, and then the mounting base is connected to the end of the headrest support rod through the cooperation of the buckle part and the buckle groove. The overall installation operation is convenient and fast. At the same time, the split design of the two terminals also provides convenience for the subsequent maintenance and replacement of the headrest light field screen or the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1is a stereogram of the present application; Figure 2 yes Figure 1 Schematic diagram of the cross section at AA in the middle; Figure 3 It is a schematic diagram of the installation structure of the connector.

[0016] In the figure, 1, headrest body; 10, headrest support rod; 100, buckle slot; 11, headrest power cord; 110, second wiring terminal; 2. Power connector; 20. Plug socket; 21. Mounting seat; 210. Limiting portion; 211. Buckle portion; 22. Socket connection wire; 220. First wiring terminal; 3. Connector; 30. Plug connector; 300. Extension plug; 31. Fixing block; 310. First connecting block; 311. Second connecting block; 312. Contour cavity; 313. Guide groove; 313a. Bell mouth. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figures 1 to 3 As shown, the present invention is a plug-in power-taking headrest light field screen, comprising: a headrest body 1, on which a headrest support rod 10 is arranged; a power connector 2 for connecting the light field screen, which is arranged at the end of the headrest support rod 10, and a plug socket 20 is formed in the power connector 2; a connector 3, which is installed inside the seat, and a plug connector 30 is arranged in the connector 3, and the end of the plug connector 30 extends along its axial direction to form an extension plug 300; when the headrest support rod 10 drives the plug socket 20 to be movably plugged into the plug connector 30, the extension plug 300 can allow the plug connector 30 to maintain contact and communication with the plug socket 20, so as to compensate for the manufacturing tolerance of the headrest support rod 10.

[0019] In this embodiment, the headrest light field screen does not need to be designed to be movable up and down. The height of the pillow surface and the viewing angle have covered most people. Therefore, the plug-in design only needs to consider the length tolerance of the headrest support rod 10 itself and the assembly tolerance when it is installed in the seat. Specifically, Figures 1 to 3As shown, before plugging, a connector 3 is installed in the seat in advance, and the connector 3 contains a plug connector 30 for physical connection with the plug socket 20 at the end of the headrest support rod 10. It is worth noting that the end of the plug connector 30 is designed with an extension plug 300 extending along its axial direction. This design is to ensure that even within the manufacturing tolerance range of the headrest support rod 10, the plug connector 30 and the plug socket 20 can maintain stable electrical contact. When the headrest support rod 10 is placed in place together with the headrest body 1, the headrest support rod 10 will push the plug socket 20 at its end to move into the seat until the plug socket 20 meets and inserts the plug connector 30 in the seat. In this process, due to the existence of the extension plug 300, even if there is a slight difference in the size of the headrest support rod 10, it can be effectively compensated by the extension plug 300, so that the plug socket 20 can be accurately docked with the plug connector 30, thereby establishing a stable electrical connection. It can be seen that the headrest light field display device effectively avoids the problem of unstable power transmission caused by poor contact, improves the overall structural reliability and service life, and ensures that the user experience is not affected.

[0020] Preferably, since the sum of the length tolerance of the headrest support rod 10 in the conventional design plus the assembly tolerance is about 3 mm, the length of the extended plug 300 in this embodiment is 3 mm. In order to ensure that the plug connector 30 with the increased length can be stably inserted into the socket 20 to achieve electrical contact, the depth of the socket 20 in this embodiment is also increased by 3 mm to ensure that the two are firmly plugged in.

[0021] The power connector 2 also includes: a mounting seat 21, which extends into the headrest support rod 10 and is connected to the end of the headrest support rod 10, and the socket 20 is connected to the mounting seat 21; a socket connecting wire 22, which passes through the mounting seat 21 and is connected to the socket 20, and a first terminal 220 is formed on the socket connecting wire 22. A headrest power wire 11 extending into the headrest support rod 10 is connected to the headrest body 1, and a second terminal 110 is formed on the headrest power wire 11. The first terminal 220 is movably pressed against the second terminal 110.

[0022] like Figure 2As shown, in this embodiment, the terminal connected to the socket 20 is not directly connected to the headrest light field screen in the headrest body 1, but is designed in two stages. Specifically, before installation, the headrest power line 11 can be passed through the headrest support rod 10, so that the second terminal 110 and the first terminal 220 on the socket 20 can be flexibly abutted to achieve electrical connection, and then the mounting seat 21 is connected to the end of the headrest support rod 10, so as to facilitate the insertion of the exposed wire into the headrest support rod 10. It can be seen that this structure facilitates the electrical connection of the mounting seat 21, the first terminal 220 and the second terminal 110 on the one hand, and provides convenience for the subsequent maintenance and replacement of the headrest light field screen or the socket 20 on the other hand. It should be noted that in this embodiment, the first terminal 220 and the second terminal 110 are both provided at two places. When both places are flexibly abutted, as the plug connector 30 is inserted into the socket 20, the headrest light field screen can be powered and used normally.

[0023] A limiting portion 210 and a snap-on portion 211 are respectively formed at both ends of the mounting seat 21. The limiting portion 210 can move synchronously with the mounting seat 21 and flexibly abut against the end of the headrest support rod 10. A snap-on groove 100 is formed on the inner wall of the headrest support rod 10, and the snap-on portion 211 is movably snap-connected in the snap-on groove 100.

[0024] like Figure 2 As shown, after the first terminal 220 and the second terminal 110 are electrically connected, as the mounting seat 21 is movably inserted into the headrest support rod 10, the limiting portion 210 can limit the distance that the mounting seat 21 extends into the headrest support rod 10, so as to ensure the smoothness of the subsequent disassembly operation; when the limiting portion 210 is pressed against the end of the headrest support rod 10, the buckle portion 211 on the mounting seat 21 is movably engaged in the buckle groove 100, thereby fixing the mounting seat 21 to the end of the headrest support rod 10, ensuring that the socket 20 will not be displaced relative to the headrest support rod 10 during the plug-in process.

[0025] The connector 3 further includes a fixing block 31 , in which a contour cavity 312 is formed. The plug connector 30 is disposed in the contour cavity 312 to limit the plug connector 30 from shaking.

[0026] like Figures 2 to 3 As shown, the shape of the contoured cavity 312 in this embodiment is the same as that of the plug connector 30. While realizing the installation and placement of the plug connector 30, the contoured cavity 312 can also be used to limit the plug connector 30, thereby ensuring the stability of the structure during the plugging process and preventing the plug connector 30 from moving relative to the contoured cavity 312 and failing to be accurately plugged into place.

[0027] A guide groove 313 communicating with the contoured cavity 312 is also formed in the fixing block 31 , and the extension plug 300 is arranged at the center position of the guide groove 313 , and the guide groove 313 is used to guide the headrest support rod 10 to be movably inserted in the fixing block 31 so that the socket 20 is in contact and communication with the extension plug 300 .

[0028] like Figures 2 to 3 As shown, the inner diameter of the guide groove 313 is slightly larger than the outer diameter of the headrest support rod 10. During the plugging process, the headrest support rod 10 drives the socket 20 to extend into the guide groove 313. The guide groove 313 guides and limits the headrest support rod 10, so that the socket 20 can be accurately aligned with the extension plug 300, and finally inserted into the plug connector 30 to achieve electrical contact connection, thereby improving the smoothness and stability of the plugging action.

[0029] Further, if Figure 2 As shown, the fixed block 31 in this embodiment includes a first connecting block 310 and a second connecting block 311 that are detachably connected. The above-mentioned contour cavity 312 is formed by the first connecting block 310 and the second connecting block 311 being movably pressed against each other. It should be noted that the first connecting block 310 and the second connecting block 311 can be detachably connected by connecting parts such as bolts and screws. This structure is conducive to providing convenience when installing the plug connector 30, and is also convenient for subsequent maintenance and disassembly and replacement, thereby extending the service life.

[0030] Preferably, in this embodiment, a bell mouth 313a is further formed at one end of the guide groove 313 away from the contoured cavity 312, and the large end of the bell mouth 313a opens toward the headrest support rod 10. It should be noted that the large end diameter of the bell mouth 313a is slightly larger than the inner diameter of the guide groove to ensure the smoothness of the plug-in action when the headrest support rod 10 drives the socket 20 to avoid jamming during the plug-in process.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A plug-in power-taking headrest light field screen, characterized in that: include: A headrest body, on which a headrest support rod is disposed; A power connector for connecting the light field screen, which is arranged at the end of the headrest support rod, and a socket is formed in the power connector; A connector is installed inside the seat, wherein a plug connector is provided inside the connector, and an end of the plug connector is extended along the axial direction thereof to form an extension plug; When the headrest support rod drives the socket to be movably inserted into the plug connector, the extension plug can allow the plug connector to maintain contact and communication with the socket to compensate for the manufacturing tolerance of the headrest support rod.

2. The plug-in power-taking headrest light field screen according to claim 1, characterized in that: The power connection member also includes: a mounting seat, which extends into the headrest support rod and is connected to the end of the headrest support rod, and the plug-in seat is connected to the mounting seat; A socket connection line passes through the mounting seat and is connected to the plug socket, a first terminal is formed on the socket connection line, a headrest power line extending into the headrest support rod is connected to the headrest body, a second terminal is formed on the headrest power line, and the first terminal is movably pressed against the second terminal.

3. The plug-in power-taking headrest light field screen according to claim 1, characterized in that: The length of the extension plug is 3 mm.

4. The plug-in power-taking headrest light field screen according to claim 2, characterized in that: A limiting portion and a snap-on portion are respectively formed at both ends of the mounting seat, and the limiting portion can move synchronously with the mounting seat and movably abut against the end of the headrest support rod; a snap-on groove is formed on the inner wall of the headrest support rod, and the snap-on portion is movably snap-connected in the snap-on groove.

5. The plug-in power-taking headrest light field screen according to claim 1, characterized in that: The connector also includes a fixing block, a contour cavity is formed in the fixing block, and the plug connector is arranged in the contour cavity to limit the shaking of the plug connector.

6. The plug-in power-taking headrest light field screen according to claim 5, characterized in that: A guide groove connected to the contoured cavity is also formed in the fixing block, and the extension plug is arranged at the center of the guide groove. The guide groove is used to guide the headrest support rod to be movably inserted in the fixing block so that the socket is in contact and communication with the extension plug.

7. The plug-in power-taking headrest light field screen according to claim 5, characterized in that: The fixing block comprises a first connecting block and a second connecting block which are detachably connected, and the first connecting block and the second connecting block are used to movably press against each other to form the contoured cavity.

8. The plug-in power-taking headrest light field screen according to claim 6, characterized in that: The guide groove is further formed with a bell mouth at one end away from the contoured cavity, and the large end of the bell mouth opens toward the headrest stay.

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