Plug-in power-taking headrest light field screen

Abstract

The utility model 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 provided with a headrest supporting rod; 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 utility model has the advantages that the extension plug is formed at the end part of the connecting plug, and the extension plug can be used for effectively compensating the length tolerance of the headrest stay bar and the assembly tolerance when the headrest stay bar is arranged in a seat, so that 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 utility model belongs to the field of headrest plugging and unplugging, and particularly relates to a headrest light field screen with plug-and-play power taking. Background Art

[0002] With the development of vehicle intelligence, in-vehicle display systems have become an indispensable part of modern vehicles, providing not only 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. Especially in high-end vehicles, the application of light field screens is growing rapidly. During the use of the headrest light field screen, 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 during installation in the seat, it is very easy for 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 Utility Model

[0004] Aiming at the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide a headrest light field screen with plug-and-play power taking.

[0005] The technical solution adopted by the utility model to solve its technical problem is to provide a headrest light field screen with plug-and-play power taking, including: a headrest body, on which a headrest support rod is configured;

[0006] A power connection member for connecting the light field screen, which is arranged at the end of the headrest support rod, and a socket is formed inside the power connection member;

[0007] A plug-in connector, which is installed inside the seat, and a plug is arranged inside the plug-in connector, and an extended plug is formed by extending the end of the plug along its axial direction;

[0008] When the headrest support rod drives the socket to be movably inserted into the plug, the extended plug can keep the plug and the socket in contact and communication to compensate for the manufacturing tolerance of the headrest support rod.

[0009] In the above-mentioned headrest light field screen with plug-and-play power taking, the power connection member further includes:

[0010] A mounting seat, which extends into the headrest support rod and is connected to the end of the headrest support rod, and the socket is connected inside the mounting seat;

[0011] The socket connecting wire passes through the mounting base and is connected to the plug socket. A first wiring terminal is formed on the socket connecting wire. A headrest power cord extending into the headrest support rod is connected inside the headrest body. A second wiring terminal is formed on the headrest power cord. The first wiring terminal and the second wiring terminal are in movable abutment.

[0012] In the above-mentioned headrest light field screen with plug-and-play power extraction, the length of the extension plug is 3 mm.

[0013] In the above-mentioned headrest light field screen with plug-and-play power extraction, limiting parts and buckling parts are respectively formed at two ends of the mounting base. The limiting parts can move synchronously with the mounting base and are in movable abutment against the end of the headrest support rod. A buckling groove is formed on the inner wall of the headrest support rod. The buckling parts are movably buckled in the buckling groove.

[0014] In the above-mentioned headrest light field screen with plug-and-play power extraction, the connector further includes a fixing block. A profiling cavity is formed in the fixing block. The plug head is arranged in the profiling cavity to limit the plug head from shaking.

[0015] In the above-mentioned headrest light field screen with plug-and-play power extraction, a guiding groove communicating with the profiling cavity is further formed in the fixing block. The extension plug is arranged at the central position of the guiding groove. The guiding groove is used to guide the headrest support rod to be movably inserted into the fixing block so that the plug socket is in contact and connection with the extension plug.

[0016] In the above-mentioned headrest light field screen with plug-and-play power extraction, the fixing block includes a first connection block and a second connection block which are detachably connected. The first connection block and the second connection block are used to abut against each other movably to form the profiling cavity.

[0017] In the above-mentioned headrest light field screen with plug-and-play power extraction, a flared opening is further formed at one end of the guiding groove far away from the profiling cavity. The large end opening of the flared opening faces the headrest support rod.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] (1) By forming an extension plug at the end of the plug head in the headrest light field screen with plug-and-play power extraction of the present utility model, the length tolerance of the headrest support rod and the assembly tolerance when installed in the seat can be effectively compensated by using the extension plug, ensuring the stable connection between the plug socket and the plug head, 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.

[0020] (2) The first terminal on the socket connection line and the second terminal on the headrest power line are pre-tightened and contacted. Subsequently, the mounting seat 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

[0021] Figure 1 is a three-dimensional view of the present application;

[0022] Figure 2 is Figure 1 a schematic cross-sectional view taken along line A-A in

[0023] Figure 3 is a schematic installation structure view of the connector.

[0024] In the figure, 1 is the headrest body; 10 is the headrest support rod; 100 is the buckle groove; 11 is the headrest power line; 110 is the second terminal;

[0025] 2 is the power connector; 20 is the socket; 21 is the mounting seat; 210 is the limiting part; 211 is the buckle part; 22 is the socket connection line; 220 is the first terminal;

[0026] 3 is the connector; 30 is the plug head; 300 is the extended plug; 31 is the fixing block; 310 is the first connection block; 311 is the second connection block; 312 is the profiling cavity; 313 is the guiding groove; 313a is the flared opening. Detailed Description of the Preferred Embodiments

[0027] The following are specific embodiments of the present invention in combination with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0028] As Figures 1 to 3 shown, a plug-and-play power-taking headrest light field screen of the present invention includes: a headrest body 1, on which a headrest support rod 10 is configured; a power connector 2 for connecting the light field screen, arranged at the end of the headrest support rod 10, and a socket 20 is formed inside the power connector 2; a connector 3, installed inside the seat, and a plug head 30 is arranged inside the connector 3, and an extended plug 300 is formed at the end of the plug head 30 along the axial direction thereof; when the headrest support rod 10 drives the socket 20 to be movably inserted into the plug head 30, the extended plug 300 can keep the plug head 30 and the socket 20 in contact and communication to compensate for the manufacturing tolerance of the headrest support rod 10.

[0029] In this embodiment, the headrest light field screen does not need to be designed to be movable up and down. Since the height of the pillow surface and the viewing angle cover most people, 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, as Figures 1 to 3 shown, before the plug-in connection, a connector 3 is installed inside the seat in advance. The connector 3 contains a plug connector 30 inside, which is used for physical connection with the socket 20 at the end of the headrest support rod 10. It should be noted that the end of the plug connector 30 is designed with an extended plug 300 extending along its axis. This design is to ensure that even within the manufacturing tolerance range of the headrest support rod 10, a stable electrical contact can be maintained between the plug connector 30 and the socket 20. When the headrest support rod 10 is placed in place together with the headrest body 1, the headrest support rod 10 will push the socket 20 at its end towards the inside of the seat until the socket 20 meets the plug connector 30 inside the seat and is successfully inserted. During this process, due to the existence of the extended plug 300, even if there are slight differences in the dimensions of the headrest support rod 10, they can be effectively compensated by the extended plug 300, enabling the socket 20 to accurately dock with the plug connector 30, thereby establishing a stable electrical connection. Thus, 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.

[0030] Preferably, since the sum of the length tolerance and the assembly tolerance of the headrest support rod 10 in the conventional design is about 3 mm, the length of the extended plug 300 in this embodiment is 3 mm. To ensure that the plug connector 30 after increasing the 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 a stable plug-in connection between the two.

[0031] The power connector 2 further includes: a mounting base 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 inside the mounting base 21; a socket connecting wire 22, which passes through the mounting base 21 and is connected to the socket 20. A first terminal 220 is formed on the socket connecting wire 22. A headrest power cord 11 extending into the headrest support rod 10 is connected inside the headrest body 1, and a second terminal 110 is formed on the headrest power cord 11. The first terminal 220 and the second terminal 110 are in movable abutment.

[0032] As Figure 2As shown, in this embodiment, the terminal of the connection socket 20 is not directly connected to the headrest light field screen inside the headrest body 1, but is designed in a two-stage manner. Specifically, before installation, the headrest power cord 11 can pass through the headrest support rod 10, so that the second terminal 110 and the first terminal 220 on the socket 20 are in movable abutment to achieve electrical connection. Subsequently, the mounting seat 21 is connected to the end of the headrest support rod 10 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 there are two sets of the first terminal 220 and the second terminal 110 in this embodiment. When both are in movable abutment, as the plug 30 is inserted into the socket 20, the headrest light field screen is powered on and can be used normally.

[0033] Both ends of the mounting seat 21 are respectively formed with a limiting portion 210 and a buckle portion 211. The limiting portion 210 can move synchronously with the mounting seat 21 and is in movable abutment with the end of the headrest support rod 10; a buckle groove 100 is formed on the inner wall of the headrest support rod 10, and the buckle portion 211 is movably engaged in the buckle groove 100.

[0034] As Figure 2 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 to ensure the smoothness during subsequent disassembly operations; when the limiting portion 210 abuts 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 at the end of the headrest support rod 10 to ensure that the socket 20 does not displace relative to the headrest support rod 10 during the plugging process.

[0035] The connector 3 further includes a fixing block 31. A profiling cavity 312 is formed in the fixing block 31, and the plug 30 is arranged in the profiling cavity 312 to limit the shaking of the plug 30.

[0036] As Figures 2 to 3 shown, in this embodiment, the outer shape of the profiling cavity 312 is the same as that of the plug 30. While realizing the installation and placement of the plug 30, it can also use the profiling cavity 312 to limit the plug 30 to ensure the stability of this structure during the plugging process and prevent the plug 30 from moving relative to the profiling cavity 312 and failing to be accurately plugged in place.

[0037] A guiding groove 313 communicating with the profiling cavity 312 is further formed in the fixed block 31. The extending plug 300 is arranged at the central position of the guiding groove 313. The guiding groove 313 is used to guide the headrest strut 10 to be movably inserted into the fixed block 31, so that the socket 20 can be in contact and communication with the extending plug 300.

[0038] As Figures 2 to 3 shown, the inner diameter of the guiding groove 313 is slightly larger than the outer diameter of the headrest strut 10. During the insertion process, the headrest strut 10 drives the socket 20 to extend into the guiding groove 313. By using the guiding and limiting functions of the guiding groove 313 on the headrest strut 10, the socket 20 can be accurately aligned with the extending plug 300 and finally inserted into the plug joint 30 to achieve electrical contact connection, improving the smoothness and stability during the insertion operation.

[0039] Furthermore, as Figure 2 shown, the fixed block 31 in this embodiment includes a first connection block 310 and a second connection block 311 which are detachably connected. The above-mentioned profiling cavity 312 is formed by the way that the first connection block 310 and the second connection block 311 are movably abutted against each other. It should be noted that the first connection block 310 and the second connection block 311 can be detachably connected through connecting components such as bolts and screws. This structure is beneficial to provide convenience for the installation of the plug joint 30, and at the same time is convenient for subsequent maintenance, disassembly and replacement, extending the service life.

[0040] Preferably, a flared opening 313a is further formed at one end of the guiding groove 313 away from the profiling cavity 312. The large end opening of the flared opening 313a faces the headrest strut 10. It should be noted that the diameter of the large end of the flared opening 313a is slightly larger than the inner diameter of the guiding groove to ensure the smoothness of the insertion operation when the headrest strut 10 drives the socket 20 to perform the insertion action and avoid jamming during the insertion process.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0042] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. A headrest light field screen with plug-and-play power extraction, characterized in that, Including: A headrest body, on which a headrest support rod is configured; A power connection member for connecting a light field screen, provided at the end of the headrest support rod, and a socket is formed in the power connection member; A connector, installed inside the seat, with a plug head provided inside the connector, and an extended plug is formed at the end of the plug head extending along its axis; When the headrest support rod drives the socket to be movably inserted into the plug head, the extended plug allows the plug head and the socket to remain in contact and connection to compensate for the manufacturing tolerance of the headrest support rod.

2. The headrest light field screen with plug-and-play power taking according to claim 1, characterized in that, The power connection member further includes: A mounting seat, which extends into the headrest support rod and is connected to the end of the headrest support rod, and the socket is connected inside the mounting seat; A socket connection line, which penetrates the mounting seat and is connected to the socket, a first wiring terminal is formed on the socket connection line, a headrest power line extending into the headrest support rod is connected inside the headrest body, and a second wiring terminal is formed on the headrest power line, and the first wiring terminal and the second wiring terminal are movably abutted.

3. The headrest light field screen with plug-and-play power extraction according to claim 1, characterized in that The length of the extended plug is 3 mm.

4. The headrest light field screen with plug-and-play power taking according to claim 2, characterized in that, Limit parts and buckle parts are respectively formed at both ends of the mounting seat, and the limit part can move synchronously with the mounting seat and movably abut against the end of the headrest support rod; a buckle groove is formed on the inner wall of the headrest support rod, and the buckle part is movably clamped in the buckle groove.

5. The headrest light field screen with plug-in power taking according to claim 1, characterized in that The connector further includes a fixing block, a profiling cavity is formed in the fixing block, and the plug head is arranged in the profiling cavity to limit the plug head from shaking.

6. The headrest light field screen with plug-and-play power taking according to claim 5, characterized in that, A guiding groove communicating with the profiling cavity is further formed in the fixing block, the extended plug is arranged at the central position of the guiding groove, and the guiding groove is used to guide the headrest support rod to be movably inserted into the fixing block for the socket to be in contact and connection with the extended plug.

7. The headrest light field screen with plug-and-play power extraction according to claim 5, characterized in that, The fixing block includes a first connection block and a second connection block that are detachably connected, and the first connection block and the second connection block are used to movably abut against each other to form the profiling cavity.

8. The headrest light field screen with plug-and-play power extraction according to claim 6, characterized in that, A flared opening is further formed at one end of the guiding groove away from the profiling cavity, and the large end opening of the flared opening faces the headrest support rod.

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