Pluggable electric connection structure for guide sleeve adjustable headrest

Abstract

The pluggable electric connection structure comprises a quick plug assembly and a bottom connecting assembly, the quick plug assembly comprises a quick plug shell, a metal elastic piece, a fixing support and a connecting piece, the metal elastic piece and the fixing support are fixedly connected and installed in the quick plug shell together, and the bottom connecting assembly is connected with the quick plug shell. The connecting piece is fixedly connected with the quick plug shell and is inserted into the headrest rod through the connecting piece, and the metal elastic piece is connected with a first wire harness in the headrest rod; the bottom connecting assembly comprises a bottom connecting shell and a sliding contact wire box assembly, the bottom connecting shell is inserted into the sliding contact wire box assembly and is connected with the metal framework, and the sliding contact wire box assembly comprises a conducting strip; when the headrest rod is inserted into the seat guide sleeve, the metal elastic piece at the tail end of the headrest rod is in sliding contact with the conducting strip in the sliding contact wire box assembly, and electric connection is achieved. According to the guide sleeve adjusting type headrest, the guide sleeve adjusting type headrest can be quickly inserted and pulled out under the condition that the wire harness is arranged, stable conduction in the height adjusting process is achieved, and using convenience and comfort of a user are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more particularly to a pluggable electrical connection structure for a guide sleeve adjustable headrest. Background Technology

[0002] With the increasing demand for intelligent and comfortable vehicles, music headrests and massage headrests with integrated music playback functions are gradually becoming standard equipment in mid-to-high-end models. Currently, these headrests typically connect to the seat's internal system or power supply via wiring harnesses. However, the mainstream headrest height adjustment method on the market is currently a guide sleeve type, where the headrest rod slides within a guide sleeve at the top of the seat back to achieve height adjustment.

[0003] In existing headrest adjustment structures, the headrest wiring harness is often routed from inside the headrest rod and directly plugged into the wiring harness inside the seat. This design has a significant drawback: when the headrest needs to be removed from the seat (e.g., for seat removal, modification, or increasing rear seat space), the wiring harness plug hidden inside the seat must first be disconnected with considerable effort, making the operation extremely inconvenient and potentially damaging the wiring harness due to pulling. In other words, existing headrests cannot be quickly plugged in and out when the wiring harness is attached, affecting user convenience.

[0004] In addition, some solutions use a plug at the end of the headrest rod and a socket at the bottom of the guide sleeve. However, when the headrest rod is slid up and down to adjust the height, the plug and socket are in relative motion, which can easily lead to poor contact and affect the stability of power supply.

[0005] Therefore, it is necessary to solve the technical problems of existing adjustable headrests with guide sleeves, which are cumbersome to operate when they need to be inserted or removed, and have unstable electrical connections during height adjustment. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a pluggable electrical connection structure for a guide sleeve adjustable headrest, which solves the technical problems of cumbersome operation when plugging and unplugging is required and unstable electrical connection during height adjustment in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A pluggable electrical connection structure for an adjustable headrest includes a quick-connect assembly and a bottom connection assembly. The quick-connect assembly includes a quick-connect housing, a metal spring, a fixing bracket, and a connector. The metal spring and the fixing bracket are pre-assembled and fixedly connected, and are installed together in the quick-connect housing. The connector is fixedly connected to the quick-connect housing to form an integral structure. The connector is inserted into the headrest rod, and the metal spring is connected to a first wire harness inside the headrest rod. The bottom connection assembly includes a bottom connection shell and a sliding contact wire box assembly. The bottom connection shell is inserted into the sliding contact wire box assembly and connected to a metal frame. The bottom connection shell includes a second wire harness and an interface. The sliding contact wire box assembly includes a conductive piece connected to the second wire harness. When the headrest rod is inserted into the seat guide sleeve, the metal spring at the end of the headrest rod slides into contact with the conductive piece inside the sliding contact wire box assembly, achieving electrical connection.

[0008] Preferably, the sliding contact box assembly is connected to the metal frame via a fixed bracket assembly. The fixed bracket assembly includes sheet metal parts, bolts, and nuts. One end of the sheet metal parts is connected to the sliding contact box assembly via bolts and nuts, and the other end is welded to the metal frame.

[0009] Preferably, the bottom connecting shell has multiple contact points inside its interface that connect to the second wire harness, and the conductive sheet is connected to the contact points.

[0010] Preferably, the metal spring and the fixing bracket are fixed by soldering and then installed together into the quick-connect plug housing.

[0011] Preferably, the connector is fixedly connected to the quick-connect housing containing the metal spring and the fixing bracket by laser welding.

[0012] Preferably, the metal springs are arranged symmetrically.

[0013] Preferably, the sliding contact box assembly is provided with a mounting groove, and the conductive sheet is disposed in the mounting groove.

[0014] Preferably, the conductive sheets are arranged symmetrically.

[0015] Preferably, a guide portion is formed at the front end of the quick-connect plug housing.

[0016] Preferably, the sheet metal parts are symmetrically arranged on both sides of the sliding contact box assembly.

[0017] By adopting the above-described technical solution, the beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention provides a pluggable electrical connection structure for a guide sleeve adjustable headrest, enabling plug-and-play functionality: through the sliding contact design between the metal spring at the end of the headrest rod and the bottom sliding contact box, the problem of traditional headrests being unable to be quickly plugged in and unplugged when carrying a wire harness is completely solved, allowing users to easily disassemble the headrest and making operation convenient; 2. The present invention provides a pluggable electrical connection structure for a guide sleeve adjustable headrest, which ensures stable conduction during the adjustment process: a sliding contact conductive structure is adopted to replace the traditional point-to-point plugging, so that the circuit remains conductive when the headrest is adjusted up and down, avoiding power interruption or current fluctuation caused by poor contact, and providing a smoother and more stable user experience. 3. The present invention provides a pluggable electrical connection structure for a guide sleeve adjustable headrest, which is reliable and durable: the metal spring and the fixed bracket are pre-assembled by soldering, and the connectors are laser welded to ensure the conductivity reliability and structural strength of the quick plug assembly. The bottom is fixed by welding sheet metal parts to ensure the stability of the overall structure and can adapt to various vibration conditions during vehicle operation. Attached Figure Description

[0018] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings: Figure 1 This is a perspective view of the application of this invention; Figure 2 This is an exploded view of the quick-connect assembly of the present invention; Figure 3 This is an exploded view of the bottom connecting component of the present invention; The reference numerals in the accompanying drawings include: quick-connect assembly 1, bottom connection assembly 2, headrest rod 3, quick-connect housing 11, metal spring 12, fixing bracket 13, connector 14, bottom connection shell 21, sliding contact box assembly 22, fixing bracket assembly 23, metal frame 24, guide part 111, second wire harness 211, contact point 2111, interface 212, conductive sheet 221, sheet metal part 231, bolt 232, and first wire harness 31. Detailed Implementation

[0019] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0023] Reference Figures 1 to 3 , Figure 1 This is a perspective view of the application of the present invention. Figure 2 This is an exploded view of the quick-connect assembly of the present invention. Figure 3This is an exploded view of the bottom connecting assembly of the present invention. The present invention provides a pluggable electrical connection structure for a guide sleeve adjustable headrest, including a quick-connect assembly 1 and a bottom connecting assembly 2. The quick-connect assembly 1 includes a quick-connect housing 11, metal springs 12, a fixing bracket 13, and a connector 14. The metal springs 12 and the fixing bracket 13 are pre-assembled and fixedly connected, and are installed together in the quick-connect housing 11. The connector 14 is fixedly connected to the quick-connect housing 11 to form an integral structure. The connector 14 is inserted into the headrest rod 3, and the metal springs 12 are connected to the first wire harness 31 in the headrest rod 3. The metal springs 12 are symmetrically arranged, preferably in two pairs arranged in a cross shape. The metal springs 12 and the... The fixing bracket 13 is preferably fixed by soldering to form a stable conductive pre-assembly unit. This conductive pre-assembly unit is then installed into the quick-connect housing 11. Next, the connector 14 is fixedly connected to the quick-connect housing 11, which contains the metal spring 12 and the fixing bracket 13, by laser welding to form a complete quick-connect assembly. Finally, the first wiring harness 31 of the headrest is soldered to the metal spring 12, and the quick-connect assembly is inserted into the headrest rod 3 via the connector 14, achieving fixation through a snap-fit ​​structure. In a more specific embodiment, the front end of the quick-connect housing 11 has a guide portion 111 with a semi-circular head for easy insertion and removal.

[0024] The bottom connection assembly 2 includes a bottom connection shell 21 and a sliding contact cable box assembly 22. The bottom connection shell 21 is inserted into the sliding contact cable box assembly 22 and connected to the metal frame 24. The bottom connection shell 21 includes a second wire harness 211 and an interface 212. The sliding contact cable box assembly 22 includes a conductive sheet 221 connected to the second wire harness 211. The conductive sheets 221 are preferably symmetrically arranged. The conductive sheets 221 are correspondingly arranged with the metal spring sheet 12 so that the metal spring sheet 12 can contact part or all of the conductive sheets 221. When the headrest rod 3 is inserted into the seat guide sleeve, the metal spring sheet 12 at the end of the headrest rod 3 slides into contact with the conductive sheet 221 in the sliding contact cable box assembly 22 to achieve electrical connection. The sliding contact box assembly 22 is connected to the metal frame 24 via a fixing bracket assembly 23. The fixing bracket assembly 23 includes sheet metal parts 231, bolts 232, and nuts (not shown). One end of the sheet metal parts 231 is connected to the sliding contact box assembly 22 via bolts 232 and nuts, and the other end is welded to the metal frame 24. The sheet metal parts 231 are preferably symmetrically arranged on both sides of the sliding contact box assembly 22. The interface 212 of the bottom connecting shell 21 has multiple contact points 2111 that connect to the second wire harness 211, and the conductive sheet 221 is connected to the contact points 2111. The sliding contact box assembly 22 has a mounting groove (not shown), and the conductive sheet 221 is disposed in the mounting groove.

[0025] The following will refer to Figures 1 to 3 The working principle of the present invention will be explained.

[0026] When the headrest needs to be installed, hold the headrest and insert the headrest rod 3 into the guide sleeve at the top of the seat back. As the headrest rod 3 continues to move downward, the quick-connect housing 11 at its end gradually enters the sliding contact box assembly 22. The metal spring 12 makes close contact with the conductive sheet 221 inside the sliding contact box assembly 22 due to its own elasticity, thus achieving electrical connection.

[0027] When the user needs to adjust the headrest height, the headrest is moved up and down, and the metal spring 12 at the end of the headrest rod 3 slides on the conductive plate 221. Since sliding contact is used instead of rigid plugging, a stable electrical connection is maintained during the adjustment process, ensuring that the headrest function is used normally.

[0028] When the headrest needs to be removed from the seat, simply pull it upwards; the quick-connect housing 11 at the end of the headrest rod 3 will then separate from the sliding contact cable box assembly 22. Since there is no additional wiring harness connector between the headrest and the seat, true quick-connection is achieved. When the headrest is reinserted, the electrical connection is automatically restored, requiring no manual wiring.

[0029] This invention provides a pluggable electrical connection structure for an adjustable headrest, enabling plug-and-play functionality. The sliding contact design between the metal spring at the end of the headrest rod and the bottom sliding contact box completely solves the problem of traditional headrests being unable to quickly plug and unplug when connected to wiring harnesses. Users can easily disassemble the headrest, making operation convenient. Stable conductivity during adjustment: The sliding contact conductive structure replaces the traditional point-to-point plugging, ensuring the circuit remains conductive during height adjustment, preventing power interruptions or current fluctuations due to poor contact, resulting in a smoother and more stable user experience. Reliable and durable structure: The metal spring and fixing bracket are pre-assembled using soldering, and the connectors are laser-welded, ensuring the conductivity and structural strength of the quick-connect assembly. The bottom is fixed with sheet metal components welded together, guaranteeing the overall structural stability. It can adapt to various vibration conditions during vehicle operation and can be applied to various power-requiring seat headrests, such as music headrests, electric headrests, and massage headrests.

[0030] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pluggable electrical connection structure for a guide sleeve adjustable headrest, characterized in that, The device includes a quick-connect assembly and a bottom connection assembly. The quick-connect assembly includes a quick-connect housing, a metal spring, a fixing bracket, and a connector. The metal spring and the fixing bracket are pre-assembled and fixedly connected, and are installed together in the quick-connect housing. The connector is fixedly connected to the quick-connect housing to form an integral structure. The connector is inserted into the headrest rod, and the metal spring is connected to a first wire harness inside the headrest rod. The bottom connection assembly includes a bottom connection shell and a sliding contact wire box assembly. The bottom connection shell is inserted into the sliding contact wire box assembly and connected to a metal frame. The bottom connection shell includes a second wire harness and an interface. The sliding contact wire box assembly includes a conductive piece connected to the second wire harness. When the headrest rod is inserted into the seat guide sleeve, the metal spring at the end of the headrest rod slides into contact with the conductive piece inside the sliding contact wire box assembly, achieving electrical connection.

2. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The sliding contact box assembly is connected to the metal frame via a fixed bracket assembly. The fixed bracket assembly includes sheet metal parts, bolts, and nuts. One end of the sheet metal parts is connected to the sliding contact box assembly via bolts and nuts, and the other end is welded to the metal frame.

3. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The bottom connecting shell has multiple contact points inside its interface that connect to the second wire harness, and the conductive sheet is connected to the contact points.

4. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, After the metal spring and the fixing bracket are fixed by soldering, they are then installed together into the quick-connect housing.

5. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The connector is fixedly connected to the quick-connect housing containing the metal spring and the fixing bracket by laser welding.

6. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The metal springs are arranged symmetrically.

7. The pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The sliding contact box assembly is provided with a mounting groove, and the conductive sheet is disposed in the mounting groove.

8. A pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The conductive sheets are arranged symmetrically.

9. A pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 1, characterized in that, The front end of the quick-connect plug housing has a guide portion.

10. A pluggable electrical connection structure for a guide sleeve adjustable headrest according to claim 2, characterized in that, The sheet metal parts are symmetrically arranged on both sides of the sliding contact box assembly.

Images