Hinge structure for automobile seat armrest box top cover, top cover and armrest box

Abstract

The invention relates to the technical field of automobile armrest boxes, in particular to a hinge structure for a top cover of an automobile seat armrest box, the top cover and the armrest box. The wiring device comprises a hinge shaft and a wiring pipe, the hinge shaft is used for hinging the top cover and a box body of the armrest box, and the hinge shaft is of a hollow structure; the wiring pipe is arranged in the top cover, one end of the wiring pipe is communicated with the end, arranged in the top cover, of the hinge shaft, the other end of the wiring pipe is fixedly connected with the top wall of the inner side of the top cover, and the wiring pipe can rotate around the axis of the hinge shaft along with opening and closing of the top cover; and the hollow structure of the hinge shaft and the wiring pipe form a wiring channel, so that when the top cover is opened and closed, a wire can be communicated with a power supply and an electric element in the top cover through the wiring channel in a length-fixed manner. By arranging the hinge shaft of the hollow structure and the wiring pipe which is connected with the hinge shaft in an inserted mode and communicated with the hinge shaft, the wiring pipe can rotate around the axis of the hinge shaft along with opening and closing of the top cover, and fatigue damage and breakage caused by repeated bending of the electric wire are avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive armrest box technology, and more particularly to a hinge structure for the top cover of an automotive seat armrest box, the top cover, and the armrest box. Background Technology

[0002] As a core component of the automotive interior system, the car armrest box is typically installed between the two front seats. Its design prioritizes driving comfort, aiming to provide arm support for drivers during long drives, effectively supporting the arms to prevent discomfort such as soreness, numbness, and stiffness, significantly improving the ergonomics of the driving experience. Based on the different opening methods of the lid, existing car armrest boxes mainly fall into common types such as single-door vertical opening, single-door left-right bidirectional opening, and double-door double-opening, to adapt to the interior layout of different car models and user habits.

[0003] To further optimize driving comfort, especially for use in low-temperature winter environments, existing technologies typically place a heating pad under the leather cover of the car's armrest box. The temperature output of the heating pad provides warm support for the driver's arms, solving the problem of arms getting cold while driving in winter and further improving the comfort of the driving process.

[0004] In existing technology, a through-hole is typically made on the back panel of the armrest box facing the car's center console. The main power cable, located below the armrest box, is then passed through this through-hole and electrically connected to the heating pad under the leather cover. To protect the cable, a corrugated tube is typically fitted around it. When the armrest box is opened, the main power cable is stretched out to a certain length. After the armrest box is closed, if the main power cable cannot retract smoothly through the through-hole, it will bend inside the armrest box.

[0005] With repeated opening and closing of the top cover, the power cord connecting the heating pad to the main power supply will be repeatedly bent at various points of contact between the top cover and the back panel. Over time, the cord is prone to damage and breakage due to bending fatigue, which can prevent the heating pad from heating properly and affect the user experience. More seriously, a broken cord may cause a short circuit or even a fire. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a hinged structure for the top cover of an automotive seat armrest box, the top cover and the armrest box, which solves the technical problem that the wires electrically connected to the heating pad in the existing automotive armrest boxes are easily damaged by multiple bends at the moving part between the top cover and the back panel.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] In a first aspect, the present invention provides a hinge structure for the top cover of an automotive seat armrest box, comprising a hinge shaft and a wiring conduit; the hinge shaft is used to hinge the top cover to the body of the armrest box, and the hinge shaft has a hollow structure; the wiring conduit is placed inside the top cover, one end of the wiring conduit is connected to one end of the hinge shaft placed inside the top cover, and the other end is fixedly connected to the top wall inside the top cover; the wiring conduit can rotate around the axis of the hinge shaft as the top cover is opened and closed; the hollow structure of the hinge shaft and the wiring conduit form a wiring channel, so that when the top cover is opened and closed, the wire can pass through the wiring channel at a fixed length to connect the power supply to the electrical components in the top cover.

[0011] Preferably, the conduit includes a straight pipe and a bend; both the straight pipe and the bend are installed inside the top cover, one end of the straight pipe is connected to the end of the hinge shaft located inside the top cover, and the other end is connected to one end of the bend. The outer wall of the other end of the bend is fixedly connected to the top wall of the inner side of the top cover, and the bend can rotate relative to the straight pipe around the axis of the hinge shaft as the top cover rotates.

[0012] Preferably, at one end of the straight pipe that connects to the bent pipe, a first annular groove is formed on the outer or inner wall of the straight pipe, and a second annular groove is formed on the inner or outer wall of the bent pipe; a plurality of balls arranged circumferentially around the axis of the first annular groove are provided between each corresponding first annular groove and second annular groove.

[0013] Preferably, the end of the bend away from the straight pipe has a flared shape.

[0014] Preferably, rubber sleeves are fitted at both ends of the hinge shaft, and each rubber sleeve is engaged with the hinge shaft through a groove and a protrusion; the rubber sleeves are in contact with the wire to protect the wire.

[0015] Preferably, the hinge structure further includes a tensioning device; the tensioning device is installed on the inner top wall of the top cover, the wire passing through the bend can be wound around the tensioning device, and the tensioning device can rotate to tighten the wire.

[0016] Preferably, the tensioning device includes a base plate, a ratchet, ratchet teeth, and two fixing posts; the base plate is installed on the inner top wall of the top cover, and an annular groove is formed on the bottom wall of the base plate. The ratchet teeth are placed in the annular groove and hinged to the annular groove; the ratchet is rotatably installed on the base plate by screws, with the teeth of the ratchet facing the base plate and the teeth of the ratchet teeth facing the ratchet, and the ratchet teeth can engage with the ratchet; the base plate, the ratchet, the annular groove, and the screws are coaxially arranged; the two fixing posts are vertically fixedly installed on the bottom wall of the ratchet, and the wires can be wound around the outer walls of the two fixing posts respectively.

[0017] Preferably, the tensioning device further includes an elastic element; the elastic element corresponds one-to-one with the ratchet, the elastic element is placed in the annular groove and located between the ratchet and the annular groove, and both ends of the elastic element are fixedly connected to the annular groove and the ratchet respectively, so as to provide a rebound force for the ratchet.

[0018] Secondly, the present invention provides a top cover for an automotive seat armrest box, comprising the aforementioned hinged structure for an automotive seat armrest box top cover, and further comprising a graphene heating pad, a cover body, and a sponge layer; the sponge layer is applied to the top wall of the cover body; the graphene heating pad comprises a heating pad body and a tongue, the heating pad body is applied to the top wall of the sponge layer, one end of the tongue is connected to the heating pad body, and the other end is bent towards the space between the cover body and the sponge layer, and the tongue positioned between the cover body and the sponge layer is connected to the top wall of the cover body; a through hole is provided on the top of the cover body, through which the wire passing through the conduit can pass and connect to one end of the tongue positioned between the cover body and the sponge layer; the graphene heating pad is the electrical component.

[0019] Thirdly, the present invention provides an armrest box for an automobile seat, including the aforementioned top cover.

[0020] (III) Beneficial Effects

[0021] The beneficial effects of this invention are:

[0022] This invention discloses a hinge structure for a car seat armrest box top cover, as well as the top cover and armrest box. By incorporating a hollow hinge shaft and a wiring conduit inserted into and connected to the hinge shaft, a wiring channel is formed. This allows wires to pass sequentially through the hinge shaft and the wiring conduit to connect to a graphene heating pad, achieving concealed wiring and preventing wires from being exposed when the top cover is open. This avoids the risk of scratches and pressure on exposed wires. Furthermore, the wiring conduit can rotate around the axis of the hinge shaft as the top cover opens and closes, allowing the wiring channel to rotate along the opening and closing trajectory of the top cover. This prevents the wires within the wiring channel from being stretched, maintaining a fixed length. This avoids fatigue damage and breakage caused by repeated bending and stretching of the wires during repeated opening and closing of the top cover, significantly reducing the wire damage rate, extending the wire lifespan, ensuring stable heating of the graphene heating pad, preventing its failure due to wire damage, and reducing the risk of short circuits due to wire breakage, thus improving safety. Meanwhile, the hollow structure of the hinge shaft forms a wiring channel with the wiring tube, which can improve the space utilization of the wiring, making the wiring more rational and improving the practicality of the armrest box. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the hinge structure for the top cover of an automobile seat armrest box, and the overall three-dimensional structure of the top cover and armrest box according to the present invention.

[0024] Figure 2 This is a schematic diagram of the overall three-dimensional disassembly structure of the hinge structure for the top cover of an automobile seat armrest box, the top cover, and the top cover and hinge structure of the armrest box according to the present invention.

[0025] Figure 3 This is a schematic diagram of the overall bottom view of the hinge structure of the top cover of an automobile seat armrest box, the upper part of the top cover and the various components inside the cover body, and the overall three-dimensional structure of the cooperation between them.

[0026] Figure 4 This is a top three-dimensional structural diagram of the hinge structure for the top cover of an automobile seat armrest box, the top cover, and the upper part of the armrest box cover, according to the present invention.

[0027] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the hinge structure for the top cover of an automobile seat armrest box, and the hinge structure of the top cover and armrest box according to the present invention.

[0028] Figure 6 This is a three-dimensional disassembly diagram of the hinge structure for the top cover of an automobile seat armrest box, and the overall three-dimensional disassembly structure of the top cover and the armrest box according to the present invention.

[0029] Figure 7This is a three-dimensional disassembly diagram of the hinge structure for the top cover of an automobile seat armrest box, and the wiring conduit of the top cover and armrest box according to the present invention.

[0030] Figure 8 This is a schematic diagram of the overall three-dimensional structure of a hinge structure for a top cover of an automobile seat armrest box, and a tensioning device for the top cover and armrest box according to the present invention.

[0031] Figure 9 This is a three-dimensional disassembly diagram of the hinge structure for the top cover of an automobile seat armrest box, and the tensioning device for the top cover and armrest box according to the present invention.

[0032] [Explanation of Labels in the Attached Image]

[0033] 1: Hinge shaft; 11: Groove; 2: Cable routing tube; 21: Straight tube; 211: First annular groove; 22: Bend; 221: Second annular groove; 3: Graphene heating pad; 31: Heating pad body; 32: Tongue; 4: Ball bearing; 5: Rubber sleeve; 51: Protrusion; 6: Tensioning device; 61: Base plate; 611: Annular groove; 62: Ratchet; 63: Ratchet tooth; 64: Fixing post; 65: Screw; 66: Elastic element; 7: Sponge layer; 8: Cover; 81: Through hole; 82: Receiving groove; 9: Leather sleeve; a: Wire. Detailed Implementation

[0034] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0035] Example 1

[0036] This embodiment provides a hinge structure for the top cover of an automotive seat armrest box, including a hinge shaft 1 and a wiring conduit 2.

[0037] Specifically, such as Figures 1-3 and Figure 5As shown, hinge shaft 1 is used to hinge the top cover to the box body in the armrest box. Hinge shaft 1 has a hollow structure. A conduit 2 is placed inside the top cover. One end of the conduit 2 is connected to the end of the hinge shaft 1 inside the top cover, and the other end is fixedly connected to the inner top wall of the top cover. The conduit 2 can rotate around the axis of hinge shaft 1 as the top cover opens and closes. The hollow structure of hinge shaft 1 and the conduit 2 form a wiring channel, allowing the wire a to pass through the wiring channel at a fixed length to connect the power supply to the electrical components in the top cover when the top cover is opened and closed. The electrical component is a graphene heating pad 3. By setting a hollow hinge shaft 1 and a conduit 2 that is inserted into and connected to hinge shaft 1, a wiring channel is formed, allowing the wire a to pass through hinge shaft 1 and conduit 2 sequentially to connect to the graphene heating pad 3. This achieves concealed wiring of the wire a, preventing it from being exposed when the top cover is open, thus avoiding the risk of scratches or pressure on the exposed wire a. Furthermore, the cable tray 2 can rotate around the axis of the hinge shaft 1 as the top cover opens and closes. This allows the cable channel to rotate along the opening and closing trajectory of the top cover, preventing the wire a within the cable channel from being stretched. This keeps the length of wire a within the top cover and cable channel constant, avoiding fatigue damage and breakage caused by repeated bending during repeated opening and closing of the top cover. This significantly reduces the damage rate of wire a, extends its service life, ensures stable heating of the graphene heating pad 3, prevents its failure due to damage to wire a, and reduces the possibility of short circuits caused by wire a breakage, thus improving safety. Simultaneously, the hollow structure of the hinge shaft 1 and the cable tray 2 form a cable channel, improving the space utilization for wire a routing, making the routing of wire a more rational, and enhancing the practicality of the armrest box.

[0038] Furthermore, such as Figure 6As shown, the conduit 2 includes a straight pipe 21 and a bend 22. Both the straight pipe 21 and the bend 22 are installed inside the top cover. One end of the straight pipe 21 is connected to the end of the hinge shaft 1 located inside the top cover, and the other end is connected to one end of the bend 22. The outer wall of the other end of the bend 22 is fixedly connected to the top wall of the inner side of the top cover. The straight pipe 21, the hinge shaft 1, and the bend 22 are coaxially arranged with the end of the straight pipe 21 that is inserted into it, and the bend 22 can rotate relative to the straight pipe 21 around the axis of the hinge shaft 1 as the top cover rotates. The hollow structure of the hinge shaft 1, the straight pipe 21, and the bent pipe 22 form a wiring channel. Wire a can pass through the straight pipe 21 and the bent pipe 22 in sequence, so that the straight pipe 21 and the bent pipe 22 guide and protect the wire a. This allows the wire a to be guided when it passes through the hinge shaft 1, and then guided through the bent pipe 22 to the inner top wall closer to the top cover, thus achieving precise guidance for the installation of the wire a. At the same time, the wire a is placed inside the bent pipe 22 and the straight pipe 21 to protect it during installation, preventing the wire a from scraping or being squeezed against the inside of the top cover. By setting a straight tube 21 and a bent tube 22, and the bent tube 22 being able to rotate relative to the straight tube 21 around the axis of the hinge shaft 1 as the top cover rotates, when the top cover is opened or closed by rotating around the axis of the hinge shaft 1, since the end of the bent tube 22 away from the straight tube 21 is fixedly connected to the top wall inside the top cover, the bent tube 22 rotates with the rotation of the top cover, so that the wire a in the wiring channel will only be slightly twisted, without any change in length, further preventing the wire a from bending.

[0039] Furthermore, at the end where the straight pipe 21 connects to the bent pipe 22, a first annular groove 211 is formed on the outer or inner wall of the straight pipe 21, and a corresponding second annular groove 221 is formed on the inner or outer wall of the bent pipe 22. Between each corresponding first annular groove 211 and second annular groove 221, a plurality of balls 4 arranged circumferentially around the axis of the first annular groove 211 are provided. That is, as... Figure 7As shown, the outer wall of the end of the straight tube 21 away from the hinge axis 1 is provided with a first annular groove 211 aligned with its own axis. The inner wall of the end of the bent tube 22 facing the straight tube 21 is provided with a second annular groove 221 corresponding to the first annular groove 211. The axes of the first annular groove 211 and the second annular groove 221 are aligned. Multiple balls 4 arranged circumferentially around the axis of the first annular groove 211 are provided between each corresponding first annular groove 211 and second annular groove 221 to reduce the frictional force between the straight tube 21 and the bent tube 22 during rotation, thus converting sliding friction into rolling friction. This allows the bent tube 22 to rotate more smoothly relative to the straight tube 21, preventing the top cover from jamming during opening and closing. Simultaneously, it can significantly reduce the wear of the insertion surfaces of the straight tube 21 and the bent tube 22, avoiding problems such as increased clearance and rotational jamming caused by long-term sliding friction between the bent tube 22 and the straight tube 21, effectively extending the overall service life of the hinge structure. Preferably, as... Figure 5 As shown, the end of the bend 22 away from the straight pipe 21 has a flared structure, which can prevent the wire a from being scratched by the sharp edge of the straight edge after passing through the bend 22, ensuring that the wire a can smoothly transition and further preventing the wire a from bending.

[0040] It should be noted that in this embodiment, the connection between the straight pipe 21 and the bent pipe 22, and the connection between the hinge shaft 1 and the straight pipe 21, can be in the form of plug-in connection, so as to realize the connection and communication between the hinge shaft 1 and the wiring pipe 2, thereby providing a wiring channel for the wire a.

[0041] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, rubber sleeves 5 are fitted at both ends of the hinge shaft 1, and each rubber sleeve 5 is engaged with the hinge shaft 1 through a groove 11 and a protrusion 51. The rubber sleeves 5 are in contact with the wire a to protect the wire a. By setting the rubber sleeves 5, the slight shaking of the wire a in the wiring channel can be buffered, avoiding direct collision and friction between the wire a and the rigid inner wall of the hinge shaft 1, further reducing the wear of the insulation layer of the wire a. In addition, by the rubber sleeves 5 being in contact with the wire a, the wiring channel after the wire is threaded can be effectively sealed, preventing dust, moisture and other external impurities from entering the wiring channel, avoiding problems such as poor contact and corrosion caused by impurities adhering to the surface of the wire a or accumulating in the channel, and improving the sealing performance of the wiring channel. At the same time, each rubber sleeve 5 is engaged with the hinge shaft 1 through the groove 11 and the protrusion 51, which can ensure that each rubber sleeve 5 can be stably engaged with the hinge shaft 1, preventing the rubber sleeves 5 from falling off after the top cover has been opened and closed for a long time, and improving the stability of the hinge structure.

[0042] Furthermore, such as Figure 2 , Figure 3 and Figure 5As shown, the hinge structure also includes a tensioning device 6. The tensioning device 6 is installed on the inner top wall of the top cover. The wire a passing through the bend 22 can be wound around the tensioning device 6, and the tensioning device 6 can rotate to tighten the wire a, preventing the wire a passing through the bend 22 from drooping, piling up and bending.

[0043] Specifically, such as Figure 8 and Figure 9 As shown, the tensioning device 6 includes a base plate 61, a ratchet 62, a ratchet tooth 63, and two fixing posts 64. The base plate 61 is mounted on the inner top wall of the top cover. An annular groove 611 is formed in the bottom wall of the base plate 61, and the ratchet tooth 63 is placed in the annular groove 611 and hinged to the annular groove 611. The ratchet 62 is rotatably mounted on the base plate 61 by a screw 65, with the teeth of the ratchet 62 facing the base plate 61 and the teeth of the ratchet tooth 63 facing the ratchet 62. The ratchet tooth 63 can engage with the ratchet 62. The base plate 61, ratchet 62, annular groove 611, and screw 65 are coaxially arranged. The two fixing posts 64 are vertically fixed on the bottom wall of the ratchet 62. The wire a can be wound around the outer wall of the two fixing posts 64 respectively. By manually rotating the two fixing posts 64, the ratchet 62 is driven to rotate synchronously around its own axis, thereby changing the angle between the axis of the wire a located between the two fixing posts 64 and the axis of the screw 65. The ratchet 62 and ratchet 63 form a one-way locking structure to precisely fix the tension of wire a, preventing tension from loosening over time and ensuring that wire a always remains taut, thus avoiding both pulling damage and loosening buildup. It should be noted that at least one ratchet 63 can be used. Figure 9 As shown, there are three ratchet teeth 63 in this embodiment. Of course, there can also be one, two, etc., and the number is not limited here.

[0044] Furthermore, such as Figure 9 As shown, the tensioning device 6 also includes elastic elements 66. Each elastic element 66 corresponds to one ratchet 63. The elastic element 66 is placed within the annular groove 611 and positioned between the ratchet 63 and the annular groove 611. Both ends of the elastic element 66 are fixedly connected to the annular groove 611 and the ratchet 63, respectively, to provide a rebound force to the ratchet 63 and to continuously provide pressure to the ratchet 63, ensuring that the ratchet 63 and the ratchet wheel 62 tooth surfaces are always tightly engaged. This prevents the ratchet 63 from disengaging from the ratchet wheel 62 due to external forces such as vibration and bumps during vehicle operation, further improving the stability of the tensioned state of the wire a and preventing accidental slackness of the taut wire a. Simultaneously, the rebound force of the elastic element 66 allows the ratchet 63 to quickly reset and lock after the ratchet wheel 62 is rotated for adjustment, improving the operation of tension adjustment. Of course, the elastic element 66 can also buffer the impact force when the ratchet 63 engages with the ratchet wheel 62, reducing tooth surface collision and wear. The number of elastic elements 66 is the same as the number of ratchet 63, as shown in the diagram. Figure 9As shown, there are also three elastic elements 66 in this embodiment. Each elastic element 66 is connected to each ratchet 63 to provide a rebound force for each ratchet 63.

[0045] It should be noted that the hinge structure in this embodiment is applicable to single-door vertical opening, left-right bidirectional opening, and double-door opening. Of course, regardless of whether it is single-door vertical opening, left-right bidirectional opening, or double-door opening, the hinge shaft 1 is a hollow structure, and the hinge structure is installed according to the above structure. The installation structure will not be described in detail here.

[0046] Example 2

[0047] like Figure 2 As shown, this embodiment of a top cover for a car seat armrest box includes the hinged structure for a car seat armrest box top cover as in Embodiment 1, and also includes a graphene heating pad 3, a cover body 8, and a sponge layer 7. The sponge layer 7 is laid on the top wall of the cover body 8. The graphene heating pad 3 includes a heating pad body 31 and a tongue 32. The heating pad body 31 is laid on the top wall of the sponge layer 7. The sponge layer 7 has good heat preservation and cushioning properties, which can reduce heat loss from the heating pad, improve the heat preservation effect, and provide soft support for the arm, enhancing driving comfort. One end of the tongue 32 is connected to the heating pad body 31, and the other end is bent towards the space between the cover body 8 and the sponge layer 7. The tongue 32, which is placed between the cover body 8 and the sponge layer 7, is connected to the top wall of the cover body 8. A through hole 81 is provided on the top of the cover body 8, through which an electric wire a passing through the conduit 2 can pass and connect to one end of the tongue 32 placed between the cover body 8 and the sponge layer 7. By bending the tongue 32 towards the space between the cover 8 and the sponge layer 7 and concealing it between them, the tongue 32 is protected, preventing it from being squeezed by the arm when supported on the top cover, thus avoiding the tongue 32 from tilting. This also prevents the connection between the tongue 32 and the wire a from being pulled and broken, improving the stability of the connection between the graphene heating pad 3 and the wire a. The graphene heating pad 3 is the electrical component in Example 1.

[0048] Furthermore, such as Figure 4 As shown, a receiving groove 82 matching the tongue 32 is formed on the top wall of the cover 8. The tongue 32, located between the cover 8 and the sponge layer 7, is placed in the receiving groove 82 and connected to it. The receiving groove 82 can further prevent the tongue 32 from shifting or wrinkling, so as to prevent the connection between the tongue 32 and the wire a from being pulled and broken, and further improve the stability of the connection between the graphene heating pad 3 and the wire a.

[0049] Furthermore, such as Figure 1As shown, the top cover also includes a leather sleeve 9, which is laid on the graphene heating pad 3. As the outer contact structure of the top cover, it can wrap the heating pad body 31, the sponge layer 7 and the internal wiring connection parts, preventing external dust and liquid from directly invading the graphene heating pad 3 and the wire a, reducing the risk of corrosion and wear.

[0050] Example 3

[0051] The present invention provides an armrest box for automobile seats, including the hinge structure in Embodiment 1 and the top cover in Embodiment 2.

[0052] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in the embodiments or examples of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hinge structure for the top cover of an automotive seat armrest box, characterized in that, The hinge shaft (1) and the wiring pipe (2) are included. The hinge shaft (1) is used for the hinge connection between the top cover and the box body of the armrest box, and the hinge shaft (1) is a hollow structure. The wiring pipe (2) is arranged in the top cover, one end of the wiring pipe (2) is communicated with one end of the hinge shaft (1) arranged in the top cover, the other end is fixedly connected with the top wall on the inner side of the top cover, and the wiring pipe (2) can rotate around the axis of the hinge shaft (1) with the opening and closing of the top cover. The hollow structure of the hinge shaft (1) and the wiring pipe (2) form a wiring channel, so that the length of the electric wire (a) is fixedly communicated with the power supply and the power consuming element in the top cover through the wiring channel when the top cover is opened and closed.

2. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 1, wherein: The wiring pipe (2) includes a straight pipe (21) and an elbow pipe (22); The straight pipe (21) and the elbow pipe (22) are both arranged on the inner side of the top cover, one end of the straight pipe (21) is communicated with one end of the hinge shaft (1) arranged on the inner side of the top cover, the other end is communicated with one end of the elbow pipe (22), the outer wall of the other end of the elbow pipe (22) is fixedly connected with the top wall on the inner side of the top cover, and the elbow pipe (22) can rotate relative to the straight pipe (21) around the axis of the hinge shaft (1) with the top cover.

3. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 2, wherein: The end communicated with the straight pipe (21) of the elbow pipe (22) is provided with a first annular groove (211) on the outer wall or the inner wall of the straight pipe (21), and a second annular groove (221) is correspondingly provided on the inner wall or the outer wall of the elbow pipe (22); A plurality of balls (4) are arranged in each corresponding first annular groove (211) and second annular groove (221) around the axis of the first annular groove (211).

4. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 3, wherein: The end of the elbow pipe (22) away from the straight pipe (21) is a flared structure.

5. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 1, wherein: Rubber sleeves (5) are respectively arranged on the two ends of the hinge shaft (1), and each rubber sleeve (5) is clamped with the hinge shaft (1) through a groove (11) and a protrusion (51). The rubber sleeve (5) is attached to the electric wire (a) and is used for protecting the electric wire (a).

6. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 1, wherein: The hinge structure further comprises a tensioning device (6); The tensioning device (6) is arranged on the inner top wall of the top cover, the electric wire (a) of the wiring pipe (2) can be wound on the tensioning device (6), and the tensioning device (6) can rotate to tighten the electric wire (a).

7. The hinge structure for the top cover of the armrest box of the automobile seat according to claim 6, wherein: The tensioning device (6) comprises a bottom plate (61), a ratchet wheel (62), a ratchet (63) and two fixed columns (64); The bottom plate (61) is installed on the inner top wall of the top cover, and the bottom wall of the bottom plate (61) is provided with an annular groove (611), and the ratchet (63) is arranged in the annular groove (611) and hinged with the annular groove (611); The ratchet wheel (62) is rotatably installed on the bottom plate (61) by a screw (65), and the teeth of the ratchet wheel (62) face the bottom plate (61), and the teeth of the ratchet (63) face the ratchet wheel (62), and the ratchet (63) can be clamped with the ratchet wheel (62); The bottom plate (61), the ratchet wheel (62), the annular groove (611) and the screw (65) are coaxially arranged; The two fixed columns (64) are vertically and fixedly installed on the bottom wall of the ratchet wheel (62), and the electric wire (a) can be arranged on the outer wall of the two fixed columns (64) respectively.

8. The hinge structure for the top cover of the automobile seat armrest box according to claim 7, characterized in that: The tensioning device (6) further comprises an elastic member (66); The elastic member (66) corresponds to the ratchet (63) one by one, the elastic member (66) is arranged in the annular groove (611) and located between the ratchet (63) and the annular groove (611), and the two ends of the elastic member (66) are fixedly connected with the annular groove (611) and the ratchet (63) respectively, so as to provide a rebound force for the ratchet (63).

9. A top cover for an armrest box of a car seat comprising the hinge structure for a top cover of an armrest box of a car seat according to any one of claims 1 to 8, characterized in that, Further comprising a graphene heating pad (3), a cover body (8) and a sponge layer (7); The sponge layer (7) is arranged on the top wall of the cover body (8); The graphene heating pad (3) comprises a heating pad body (31) and a tongue piece (32), the heating pad body (31) is arranged on the top wall of the sponge layer (7), one end of the tongue piece (32) is connected with the heating pad body (31), the other end is bent towards the cover body (8) and the sponge layer (7), and the tongue piece (32) between the cover body (8) and the sponge layer (7) is connected with the top wall of the cover body (8); The top of the cover body (8) is provided with a through hole (81), and the electric wire (a) penetrating out of the wire pipe (2) can be connected with one end of the tongue piece (32) arranged between the cover body (8) and the sponge layer (7) through the through hole (81); The graphene heating pad (3) is the electric element.

10. An armrest box for a car seat, characterized in that The top cover of claim 9 is included.

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