Pluggable connector device and vehicle seat

Abstract

Disclosed in the present invention is a pluggable connector device, comprising a male connector assembly. The male connector assembly comprises a headrest rod sleeve assembly, a male connector, and a male connector wire harness electrically connected to the male connector, wherein the headrest rod sleeve assembly can be fixed to a seat backrest framework, and the male connector is pre-assembled in the headrest rod sleeve assembly; the male connector is configured to follow a female connector to enter and exit the headrest rod sleeve assembly after the male connector is coupled to a headrest rod and the female connector; and the male connector is further configured to return into the headrest rod sleeve assembly and be in a pre-assembled state after the female connector is separated from the male connector. The male connector in the present invention can move vertically along with the headrest rod without disassembling a seat backrest, so as to be pulled out and inserted into the headrest rod sleeve assembly again; thus, the male connector is not prone to being damaged. In addition, the male connector and the female connector in the present invention can be automatically locked and unlocked.

Description

Pluggable connector device and vehicle seat

[0001] The present invention is based on and claims priority to CN application number CN202310758241.1, filed on June 26, 2023, and CN application number CN202410176278.8, filed on February 8, 2024. The disclosed contents of the CN applications are hereby incorporated into the present invention as a whole. Technical Field

[0002] The present invention relates to the technical field of seats, and in particular to a pluggable connector device and a vehicle seat. The pluggable connector device is used for a seat headrest rod, and the pluggable connector device is especially a pre-assembled pluggable connector device. Background Art

[0003] Current user demands for car seats are becoming increasingly diverse, with headrests requiring audio, electric adjustment, and heating. Using traditional connection solutions would inevitably make it impossible to freely remove and install headrests with these functions.

[0004] Japanese Patent Application JP2008-49820 discloses an example of a lead wire connection structure for such a headrest. In this invention, a first connector, which forms a connection terminal for a lead wire connected to an electrical component located on the headrest side, is coupled to a second connector, which forms a connection terminal for a lead wire extending from the vehicle body to the seatback side.

[0005] Specifically, the first connector is configured to penetrate the interior of the headrest stay, which is used to securely attach the headrest to the seatback. This headrest stay is formed like a tube, and its mouth (opening at the lower end) holds the first connector threaded through it. Meanwhile, the second connector is located below the headrest support, which inserts and holds the headrest stay. It is retained by a retainer integrally fixed to the seatback. This second connector is thus in a standby state, ready to connect to the first connector held at the nose of the headrest stay when the headrest stay is subsequently inserted into the headrest support. Here, the second connector is configured to disengage from the retainer when pushed by the insertion force of the headrest stay after insertion, thereby connecting the first connector to the second connector.

[0006] However, in the vehicle seat disclosed in Japanese Patent Application No. JP2008-49820, it is necessary to hold a retainer for retaining the second connector beside the headrest support.

[0007] Japanese Patent Application JP2011140263A discloses a headrest assembly structure that allows the headrest to be assembled to the seat back by inserting its support post into a retaining member assembled to the seat back. This structure allows the support post to be assembled while a seatback occupant is waiting on the seat back side, providing a structure that enables efficient assembly of the headrest to the seat back. The headrest is configured so that it can be assembled to the seat back while a spare component is waiting on the seat back side. When a support post is inserted into the retaining member while the spare component is attached to the cover, the support post is held by the biasing member. The mating portion of the support post is also attached to the support post by being assembled into the housing. Furthermore, when the support post is inserted, the spare component is separated from the cover and attached only to the support post.

[0008] U.S. patent application US10569685B2 discloses a vehicle seat equipped with a seat back having a mounting portion, a headrest having a headrest frame and electronic components, a first connector, and a second connector. The first connector has a coupling portion that engages with a hole in the headrest frame, a protrusion that engages with a second connector, and a first connector terminal electrically connected to a lead of the electronic component. The second connector has a first coupling member that engages with the hole in the guide bracket from the outside of the guide bracket, a second coupling member that engages with the protrusion of the first connector from the outside of the first connector, and a second connector terminal electrically connected. The lead is connected to the seat back and the first connector terminal. The engagement between the hole in the mounting portion and the first engaging piece of the second connector can be irreversibly released.

[0009] A problem with the prior art is that the headrest cannot be completely removed and reattached in the complete vehicle (without disassembling the seat back). Furthermore, the male connector of the prior art is easily damaged on the headrest guide rod. Furthermore, the male connector cannot be pre-installed during seat production.

[0010] Summary of the Invention

[0011] An object of the present invention is to provide a pluggable connector device and a vehicle seat including the pluggable connector device, wherein the pluggable connector device can realize the pre-installation of the male end connector during seat production, thereby solving the problem in the prior art that the male end connector cannot be pre-installed during seat production.

[0012] In addition, another object of the present invention is to provide a pluggable connector device that can automatically unlock and lock the male connector and the female connector.

[0013] In order to achieve the above-mentioned purpose of the invention, the pluggable connector device of the present invention includes: a male connector assembly, which includes a headrest rod sleeve assembly and a male connector and a male connector wiring harness electrically connected to the male connector, characterized in that the headrest rod sleeve assembly can be fixed to the seat back frame; the male connector is preinstalled in the headrest rod sleeve assembly; the male connector is configured to follow the female connector in and out of the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector; the male connector is also configured to return to the headrest rod sleeve assembly and be in a preinstalled state after the female connector is detached from the male connector. The male connector assembly is preferably a preinstalled male connector assembly in which the male connector is preinstalled.

[0014] In a preferred embodiment of the present invention, at least one locking plate is installed in the headrest rod sleeve assembly, and the male connector can be locked in the headrest rod sleeve assembly by the locking plate, so that the male connector is in a pre-installed state; preferably, when the male connector follows the female connector to extend out of the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector, the locking plate can be bounced open to disengage from the male connector and unlock the male connector; preferably, when the male connector returns to the pre-installed state after the female connector is separated from the male connector, the locking plate can be elastically reset to re-lock the male connector and put the male connector in a pre-installed state.

[0015] In a preferred embodiment of the present invention, two locking plates are provided, and the two locking plates are circumferentially mounted in the headrest rod sleeve assembly.

[0016] In a preferred embodiment of the present invention, two locking plate mounting portions are provided in the circumference of the headrest rod sleeve assembly, and each locking plate is mounted in one of the locking plate mounting portions.

[0017] In a preferred embodiment of the present invention, the locking plate mounting portion includes a locking plate mounting groove, which is configured to allow the locking plate to be installed in the locking plate mounting groove. Preferably, the locking plate mounting portion also includes a card interface, which is communicated with the first end of the locking plate mounting groove, and an elastic fixing portion is provided at the first end of the locking plate. When the locking plate is installed in the locking plate mounting groove, the elastic fixing portion can be snapped into the card interface so that the locking plate will not fall out of the locking plate mounting groove.

[0018] In a preferred embodiment of the present invention, a limiting portion is further provided at the first end of the locking plate, and a limiting rib is provided at the first end of the locking plate mounting groove. After the locking plate is installed in the locking plate mounting groove, the limiting rib can contact the limiting portion to limit the movement of the locking plate in its length direction.

[0019] In a preferred embodiment of the present invention, an outwardly protruding elastic locking protrusion is provided at the middle position of the locking plate, and the elastic locking protrusion can be locked in contact with the male connector, so that the male connector is in a pre-installed position in the headrest rod sleeve assembly; preferably, when the male connector follows the female connector to enter and exit the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector, the elastic locking protrusion can be elastically deformed to break away from contact with the male connector or re-contact with the male connector.

[0020] In a preferred embodiment of the present invention, a first upper inclined surface and a first lower inclined surface are respectively provided at the upper and lower sides of the elastic locking protrusion. When the male connector contacts the first upper inclined surface, the elastic locking protrusion can be driven to deform, and the elastic locking protrusion can be separated from the contact with the male connector, so that the male connector can follow the female connector to exit the headrest rod sleeve assembly; when the male connector contacts the first lower inclined surface, the elastic locking protrusion can be driven to deform, so that the male connector can pass over the elastic locking protrusion and return to the pre-installed state and be restricted in the pre-installed position by the elastic locking protrusion.

[0021] In a preferred embodiment of the present invention, a limiting groove is provided in the locking plate installation groove, and the limiting groove is adapted to the shape of the elastic clamping protrusion. The elastic clamping protrusion can be restricted in the limiting groove to move to prevent the elastic clamping protrusion from popping out excessively.

[0022] In a preferred embodiment of the present invention, the second end of the locking plate opposite to the first end of the locking plate is a free end.

[0023] In a preferred embodiment of the present invention, the male connector assembly further includes a male connector body, the male connector body having a male terminal mounting portion and a wiring harness connection portion, the male terminal wiring harness can be electrically connected to the wiring harness connection portion, and at least one fixed clamping protrusion is provided on the periphery of the wiring harness connection portion, the fixed clamping protrusion can cooperate with the elastic clamping protrusion to limit the male connector to a pre-installed position; when the male connector follows the female connector in and out of the headrest rod sleeve assembly, the fixed clamping protrusion can drive the elastic clamping protrusion to deform.

[0024] In a preferred embodiment of the present invention, a second upper bevel and a second lower bevel are respectively provided at the upper and lower sides of the fixed locking protrusion, and when the second lower bevel contacts the first lower bevel, the male connector is restricted in the pre-installed position; preferably, when the male connector follows the female connector to prepare to exit the headrest rod sleeve assembly, the second lower bevel can drive the locking plate to expand outward through the first lower bevel, so that the fixed locking protrusion is freed from the restriction of the elastic locking protrusion, so that the male connector can follow the female connector to exit the headrest rod sleeve assembly; preferably, when the male connector follows the female connector to re-enter the headrest rod sleeve assembly and the second upper bevel contacts the first lower bevel, the second upper bevel can drive the locking plate to expand outward through the first lower bevel, so that the fixed locking protrusion passes over the elastic locking protrusion, so that the male connector returns to the pre-installed position.

[0025] In a preferred embodiment of the present invention, the male connector harness can be inserted into the harness connection portion and fastened or clamped by a cable tie or a clamp.

[0026] In a preferred embodiment of the present invention, at least one guide groove is provided in the headrest rod sleeve assembly, and the lock plate mounting groove is provided in the guide groove; at least one guide structure is provided on the periphery of the wiring harness connecting portion, and the fixed clamping protrusion is provided on the guide structure, and the guide structure can move in the guide groove.

[0027] In a preferred embodiment of the present invention, a spring mounting groove is provided in the guide structure, and a retaining spring and a torsion spring are hinged in the spring mounting groove, one end of the torsion spring acts on the guide structure, and the other end acts on the retaining spring; when the torsion spring is released, the torsion spring can drive the retaining spring to lock the female connector so that the female connector is combined with the male connector; when the female connector needs to be disengaged from the male connector, the retaining spring can be disengaged from the locking connection with the female connector under the action of external force, and at this time the torsion spring stores energy.

[0028] In a preferred embodiment of the present invention, an introduction portion and a locking portion are provided at one end of the retaining spring. When viewed in the vertical direction in the installed state, the introduction portion is located above the locking portion. When the male connector is inserted into the female connector, the female connector can drive one end of the retaining spring to expand outward through the introduction portion, so that the female connector passes over the locking portion, so that the female connector is fully combined with the male connector and locked by the locking portion.

[0029] In a preferred embodiment of the present invention, an unlocking drive portion is provided at the other end of the retaining spring, and a bevel portion is provided in the spring mounting groove. When the bevel portion interacts with the unlocking drive portion, on the one hand, the male connector can be restricted to the pre-installed position, and on the other hand, one end of the retaining spring can be driven by the unlocking drive portion to move in the unlocking direction, so that the locking portion and the female connector are disengaged from the locking connection. Preferably, under the action of the torsion spring, the unlocking drive portion provided at the lower end of the retaining spring can contact the bevel portion in the spring mounting groove, thereby limiting the upward movement of the male terminal connector. Preferably, during the process of pulling the headrest rod upward, when the bevel portion in the spring mounting groove hits the unlocking drive portion provided at the lower end of the retaining spring, the unlocking drive portion can be pressed to contract inward, thereby expanding the locking portion provided at the upper end of the retaining spring outward, thereby disengaging the locking portion from the female connector. Preferably, the unlocking drive portion has an arc structure.

[0030] In a preferred embodiment of the present invention, a conductive rod mounting hole is provided in the male terminal mounting portion and the wiring harness connecting portion, and a male terminal conductive rod can be inserted into the conductive rod mounting hole, a section of the male terminal conductive rod inserted into the male terminal mounting portion is electrically contacted with the female connector, and a section of the male terminal conductive rod inserted into the wiring harness connecting portion is electrically connected to the male connector wiring harness.

[0031] In a preferred embodiment of the present invention, at least one male terminal mounting groove is provided in the circumferential direction of the male terminal mounting portion, the male terminal mounting groove is radially connected to the conductive rod mounting hole and the outside of the male terminal mounting portion, and the male terminal mounting groove extends axially along the guide column mounting hole; preferably, a male terminal is installed in the male terminal mounting groove, and the male terminal is configured to be in electrical contact with the male terminal conductive rod on the one hand and in electrical contact with the female connector on the other hand.

[0032] In a preferred embodiment of the present invention, one end of the male terminal mounting groove extends into the wiring harness connecting portion. Preferably, male terminal limiting portions are provided at both ends of the male terminal mounting groove, and the male terminal limiting portions at both ends of the male terminal mounting groove can axially limit the male terminal in the male terminal mounting groove.

[0033] In a preferred embodiment of the present invention, a clamping edge is provided at one end of the male terminal, and an elastic clamping portion is provided at the other end of the male terminal, and the clamping edge and the elastic clamping portion can respectively contact the male terminal limiting portions at both ends of the male terminal mounting groove to axially limit the male terminal in the male terminal mounting groove.

[0034] In a preferred embodiment of the present invention, an elastic conductive contact portion is provided at the middle position of the male terminal, and the elastic conductive contact portion can be electrically contacted and connected with the female connector. While the elastic conductive contact portion is electrically contacted and connected with the female connector, the male terminal can be electrically contacted and connected with the male terminal conductive rod by relying on the pressure of the elastic conductive contact portion.

[0035] In a preferred embodiment of the present invention, a headrest rod locking component is fixedly mounted on the headrest rod sleeve assembly, a locking pin mounting hole is provided in the headrest rod locking component, a locking pin and a locking pin return spring are press-fitted in the locking pin mounting hole, and the locking pin return spring acts on the locking pin with one end and on the headrest rod locking component with the other end.

[0036] In a preferred embodiment of the present invention, the male connector includes a male connector body, at least one male terminal installed on the male connector body, and a male connector wiring harness, and a male terminal wiring terminal is formed at the bottom end of each male terminal; preferably, a male connector outlet is provided at the bottom of the male connector body, and the male terminal wiring terminal at the bottom end of the male terminal can be inserted into the male connector outlet; preferably, a bayonet is provided at the bottom of the headrest rod sleeve assembly, and during assembly, the male connector outlet can be snapped into the bayonet, and the socket on the male connector wiring harness can be inserted into the male connector outlet, so that the male connector wiring harness is electrically connected to the male terminal.

[0037] The pluggable connector device of the present invention also includes a female connector, which can be installed on the headrest rod. After the male connector is inserted into the female connector and combined with the female connector, electrical contact connection can be made between the male connector and the female connector.

[0038] In a preferred embodiment of the present invention, the female connector includes a female connector body and at least one female terminal mounted on the female connector body and a female terminal wiring harness electrically connected to the female terminal. The female connector body can be sleeved in the internal cavity of the headrest rod, and the female terminal wiring harness can pass through the internal cavity of the headrest rod into the headrest and be electrically connected to electrical components arranged at the headrest.

[0039] In a preferred embodiment of the present invention, at least one clip is provided on the outer periphery of the female connector body, and at least one mounting hole is provided on the circumference of the headrest rod, and the clip can be inserted into the mounting hole, so that the female connector body is fixed in the internal cavity of the headrest rod.

[0040] In a preferred embodiment of the present invention, an anti-error rib is provided on the female connector body, and an anti-error groove is provided on the headrest rod. The anti-error rib can be inserted into the anti-error groove, so that the female connector body is anti-error-fastened in the internal cavity of the headrest rod.

[0041] In a preferred embodiment of the present invention, a male terminal connector insertion hole is provided in the female connector body, and the male terminal connector can be inserted into the male terminal connector insertion hole; preferably, at least one female terminal mounting portion is provided on the circumference of the hole wall of the male terminal connector insertion hole, and the female terminal can be mounted in the female terminal mounting portion, and the female terminal can be electrically contacted and connected with the male terminal on the male terminal connector after the male connector is inserted into the male terminal connector insertion hole.

[0042] In a preferred embodiment of the present invention, limiting edges are respectively provided at both ends of the female terminal mounting portion, and the female terminal can be axially limited within the female terminal mounting portion by the limiting edges at both ends of the female terminal mounting portion.

[0043] In a preferred embodiment of the present invention, at least one locking hole is provided in the circumference of the female connector body. After the male connector is inserted into the male terminal connector insertion hole, the locking portion at one end of the retaining spring in the male connector can be embedded in the locking hole to lock the male connector and the female connector together; when unlocking, the locking portion at one end of the retaining spring in the male connector can exit the locking hole to achieve unlocking.

[0044] In a preferred embodiment of the present invention, the female terminal includes an integrally formed female terminal supporting portion and a female terminal conductive contact portion, the female terminal supporting portion is fixed to the other end of the female terminal conductive contact portion after being folded from one end of the female terminal conductive contact portion to a state roughly parallel to the female terminal conductive contact portion, the female terminal supporting portion is capable of contacting the female terminal mounting portion, and the female terminal conductive contact portion is capable of electrically contacting and connecting with the male terminal on the male terminal connector; preferably, a female terminal wiring harness welding portion is provided at the other end of the female terminal conductive contact portion, the female terminal wiring harness welding portion extends out of the female connector body and is welded and connected to the female terminal wiring harness.

[0045] In a preferred embodiment of the present invention, the female terminal supporting portion and the other end of the female terminal conductive contact portion are fixedly connected to each other via a flange provided on the female terminal supporting portion.

[0046] In a preferred embodiment of the present invention, an elastic clamping portion is provided on the conductive contact portion of the female terminal, and the elastic clamping portion can contact a limiting edge of the female terminal mounting portion adjacent to one end of the female terminal harness welding portion.

[0047] In a preferred embodiment of the present invention, at least one wavy portion is provided on the female terminal support portion, and the wavy portion is capable of contacting the female terminal mounting portion to apply a certain elastic force to the conductive contact portion of the female terminal, thereby better electrically contacting and connecting with the male terminal on the male terminal connector.

[0048] In a preferred embodiment of the present invention, the headrest rod sleeve assembly can be clamped on the seat back frame.

[0049] In a preferred embodiment of the present invention, the headrest rod sleeve assembly includes a headrest guide sleeve and a sleeve member, and the headrest guide sleeve is configured to guide the headrest rod, wherein the headrest guide sleeve and the sleeve member can be fixed to the skeleton support through the plug-in connection between the headrest guide sleeve, the hollow skeleton support and the sleeve member.

[0050] In a preferred embodiment of the present invention, the headrest guide sleeve can pass through the hollow skeleton support into the sleeve member and be fixedly connected to the sleeve member, wherein the skeleton support rests against the headrest guide sleeve and the sleeve member with corresponding end sides in the installed state, thereby realizing the sleeve-limiting fixation of the headrest rod sleeve assembly.

[0051] In a preferred embodiment of the present invention, the sleeve member has a recess at one end for receiving the skeleton bracket, and the bottom surface of the recess is configured to abut against the skeleton bracket, wherein, in the installed state, the side wall of the sleeve member located in the recess area surrounds the skeleton bracket.

[0052] In a preferred embodiment of the present invention, the headrest guide sleeve can be fixedly connected to the sleeve member via a snap-fit ​​structure.

[0053] In a preferred embodiment of the present invention, an opening for snapping is provided in the circumferential side wall of the sleeve member, and an elastically deformable snapping mechanism is provided circumferentially on the headrest guide sleeve, which is configured to snap into the opening for snapping of the sleeve member.

[0054] The object of the present invention is also achieved by a vehicle seat comprising a pluggable connector device according to any one of the embodiments of the present invention.

[0055] Thanks to the aforementioned technical solution, the male connector of the present invention is pre-installed in the headrest rod sleeve assembly and can be removed and reinserted into the headrest rod sleeve assembly (without disassembling the seat back), following the up and down movement of the headrest rod. This reduces the risk of damage to the male connector. Furthermore, the male and female connectors of the present invention can automatically lock and unlock, ensuring a reliable electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] FIG1 is a schematic diagram of the appearance of a headrest guide rod assembly of the present invention.

[0057] FIG2 is a schematic diagram of the outer appearance of the female connector.

[0058] FIG3 is a schematic diagram of the seat frame structure without a pre-installed male connector according to the present invention.

[0059] FIG4 is a schematic diagram of the appearance of the headrest rod sleeve assembly of the present invention.

[0060] FIG5 is a schematic diagram of the appearance of the male end connector harness of the present invention.

[0061] FIG6 is a schematic diagram of the appearance of a headrest guide rod assembly pre-installed with a female connector according to the present invention.

[0062] FIG7 is a cross-sectional view taken along line AA of FIG6 .

[0063] FIG8 is a schematic structural diagram of a seat frame pre-installed with a male connector according to the present invention.

[0064] FIG9 is an enlarged schematic diagram of point I in FIG8 .

[0065] FIG10 is a cross-sectional view taken along line BB in FIG9 .

[0066] FIG11 is a schematic diagram of the seat frame structure with the female connector locked and connected after the headrest is installed.

[0067] FIG12 is an enlarged schematic diagram of point I in FIG11 .

[0068] FIG13 is an enlarged schematic diagram of point I in FIG12 .

[0069] FIG14 is a cross-sectional view taken along line CC in FIG12 .

[0070] FIG15 is a schematic diagram of the seat frame structure with the headrest further inserted into the male connector and the male connector detached from the headrest rod sleeve assembly.

[0071] Figure 16 is an enlarged schematic diagram of point I in Figure 15.

[0072] FIG17 is an enlarged schematic diagram of point I in FIG16 .

[0073] FIG18 is a DD cross-sectional view of FIG16 .

[0074] FIG19 is a schematic diagram of the seat frame structure with the headrest further inserted into the lower limit position.

[0075] Figure 20 is an enlarged schematic diagram of point I in Figure 19.

[0076] Figure 21 is an enlarged schematic diagram of point I in Figure 20.

[0077] FIG22 is a cross-sectional view taken along line EE of FIG20 .

[0078] FIG23 is a schematic diagram of the seat frame structure with the headrest pulled out to the unlocked position of the female connector and the male connector.

[0079] Figure 24 is an enlarged schematic diagram of point I in Figure 23.

[0080] Figure 25 is an enlarged schematic diagram of point I in Figure 24.

[0081] FIG26 is a FF cross-sectional view of FIG24 .

[0082] FIG. 27 is an exploded schematic diagram of the male connector and the headrest rod sleeve assembly of the present invention.

[0083] FIG28 is an exploded schematic diagram of the headrest guide rod assembly and the female connector of the present invention.

[0084] FIG. 29 is a schematic structural diagram of the locking plate of the present invention viewed from one direction.

[0085] FIG30 is a schematic structural diagram of the locking plate of the present invention as viewed from another direction.

[0086] FIG31 is a schematic diagram showing the structure of the headrest rod sleeve assembly.

[0087] Figure 32 is an enlarged cross-sectional view of point I in Figure 31.

[0088] Figure 33 is a view taken along the direction A of Figure 31 (including a partial cross-section).

[0089] Figure 34 is a B-direction view of Figure 31 (including a partial cross-section).

[0090] Figure 35 is a schematic diagram of the partial structure of the pillow rod sleeve assembly (including partial cross-section).

[0091] Figure 36 is an enlarged cross-sectional view of point I in Figure 35.

[0092] FIG37 is a second structural diagram of the headrest rod sleeve assembly.

[0093] Figure 38 is an enlarged cross-sectional view of point I in Figure 37.

[0094] Figure 39 is a view taken along the direction A of Figure 37 .

[0095] Figure 40 is the third structural diagram of the headrest rod sleeve assembly.

[0096] Figure 41 is a schematic diagram of the headrest rod sleeve assembly being clamped onto the seat frame wire.

[0097] Figure 42 is a cross-sectional schematic diagram of the headrest rod sleeve assembly clamped on the seat frame wire.

[0098] Figure 43 is the third structural diagram of the headrest rod sleeve assembly.

[0099] Figure 44 is an enlarged cross-sectional view of point II in Figure 43.

[0100] Figure 45 is a cross-sectional view of II in Figure 43.

[0101] Figure 46 is the fourth structural diagram of the headrest rod sleeve assembly.

[0102] FIG. 47 is a cross-sectional view of a headrest rod sleeve assembly.

[0103] FIG48 is a second cross-sectional view of the headrest rod sleeve assembly.

[0104] Figure 49 is a schematic structural diagram of the male connector.

[0105] Figure 50 is a view taken along the direction A of Figure 49.

[0106] FIG51 is one of the assembly diagrams of the male connector body and the male terminal conductive rod.

[0107] FIG52 is a second schematic diagram of the assembly of the male connector body and the male terminal conductive rod.

[0108] Figure 53 is an enlarged cross-sectional view of point I in Figure 52.

[0109] FIG54 is a third schematic diagram of the assembly of the male connector body and the male terminal conductive rod.

[0110] FIG55 is a fourth schematic diagram of the assembly of the male connector body and the male terminal conductive rod.

[0111] FIG56 is the fifth schematic diagram of the assembly of the male connector body and the male terminal conductive rod.

[0112] Figure 57 is an enlarged view of point I in Figure 56.

[0113] FIG58 is the sixth assembly diagram of the male connector body and the male terminal conductive rod.

[0114] Figure 59 is a JJ sectional view of Figure 58.

[0115] Figure 60 is a schematic structural diagram of a torsion spring.

[0116] Figure 61 is one of the structural diagrams of the retaining spring.

[0117] Figure 62 is the second structural diagram of the retaining spring.

[0118] Figure 63 is the third structural diagram of the retaining spring.

[0119] Figure 64 is one of the assembly diagrams between the retaining spring and the torsion spring.

[0120] Figure 65 is the second assembly diagram between the retaining spring and the torsion spring.

[0121] Figure 66 is the third schematic diagram of the assembly between the retaining spring and the torsion spring.

[0122] Figure 67 is the fourth schematic diagram of the assembly between the retaining spring and the torsion spring.

[0123] Figure 67a is a schematic structural diagram of a retaining spring assembly of the present invention viewed from one direction.

[0124] Figure 67b is a schematic structural diagram of a retaining spring assembly of the present invention viewed from another direction.

[0125] Figure 67c is a schematic diagram of the assembly of a retaining spring assembly and a male terminal connector of the present invention.

[0126] Figure 67d is one of the assembly cross-sectional views of a retaining spring assembly and a male terminal connector of the present invention.

[0127] Figure 67e is a schematic structural diagram of a male terminal connector of the present invention.

[0128] Figure 67f is the second assembly cross-sectional view of a retaining spring assembly and a male terminal connector of the present invention.

[0129] Figure 67g is the third assembly cross-sectional view of a retaining spring assembly and a male terminal connector of the present invention.

[0130] FIG68 is a schematic structural diagram of the male terminal viewed from one direction.

[0131] FIG69 is a schematic structural diagram of the male terminal viewed from another direction.

[0132] Figure 70 is a schematic diagram of the structure in which the retaining spring and the torsion spring are installed on the male connector body.

[0133] Figure 71 is a cross-sectional view of the retaining spring and torsion spring installed on the male connector body.

[0134] Figure 72 is one of the structural schematic diagrams of the male terminal installed on the male connector body.

[0135] Figure 73 is the second structural schematic diagram of the male terminal installed on the male connector body.

[0136] Figure 74 is a cross-sectional view of the male terminal installed on the male connector body.

[0137] Figure 75 is an enlarged schematic diagram of point I in Figure 74.

[0138] FIG. 76 is one of the schematic diagrams showing the male terminal connector being inserted into the headrest rod sleeve assembly.

[0139] Figure 77 is a second schematic diagram of the male terminal connector being inserted into the headrest rod sleeve assembly.

[0140] Figure 78 is a MM cross-sectional view of Figure 77.

[0141] Figure 79 is a NN cross-sectional view of Figure 77.

[0142] FIG80 is a third schematic diagram of the male terminal connector being inserted into the headrest rod sleeve assembly.

[0143] Figure 81 is a OO sectional view of Figure 80.

[0144] Figure 82 is a PP cross-sectional view of Figure 80.

[0145] FIG83 is a fourth schematic diagram of the male terminal connector being inserted into the headrest rod sleeve assembly.

[0146] Figure 84 is a QQ cross-sectional view of Figure 83.

[0147] Figure 85 is an RR cross-sectional view of Figure 83.

[0148] FIG86 is a fifth schematic diagram of the male terminal connector being inserted into the headrest rod sleeve assembly.

[0149] Figure 87 is a SS cross-sectional view of Figure 86.

[0150] FIG88 is a schematic diagram showing the state where the female connector is inserted into the headrest rod.

[0151] Figure 89 is a TT cross-sectional view of Figure 88.

[0152] Figure 90 is a UU cross-sectional view of Figure 88.

[0153] Figure 91 is a partial view of the headrest rod.

[0154] FIG92 is one of the schematic diagrams of the appearance of the female connector.

[0155] Figure 93 is the second schematic diagram of the appearance of the female connector.

[0156] FIG. 94 is one of the structural diagrams of the female connector body.

[0157] Figure 95 is a VV cross-sectional view of Figure 94.

[0158] Figure 96 is a WW cross-sectional view of Figure 94.

[0159] Figure 97 is the second structural diagram of the female connector body.

[0160] FIG98 is a schematic structural diagram of the female terminal viewed from one direction.

[0161] FIG99 is a schematic structural diagram of the female terminal viewed from another direction.

[0162] Figure 99a is a schematic structural diagram of another male terminal.

[0163] Figure 99b is a schematic structural diagram of another male terminal connector.

[0164] Figure 99c is a schematic diagram of the assembly between another male terminal and another male terminal connector.

[0165] Figure 100 is a schematic structural diagram of the female connector.

[0166] Figure 101 is a longitudinal cross-sectional view of the female connector.

[0167] Figure 101a is a schematic structural diagram of another female terminal.

[0168] Figure 101b is a schematic diagram of the appearance of the female connector.

[0169] Figure 101c is a schematic diagram of the assembly between another female terminal and a female connector.

[0170] Figure 102 is a transverse cross-sectional view of the female connector.

[0171] FIG103 is one of the schematic diagrams showing the headrest being inserted into the seat.

[0172] FIG104 is one of the schematic diagrams showing the locking of the male connector and the female connector.

[0173] Figure 105 is a sectional view taken along line XX of Figure 104 .

[0174] FIG106 is a second schematic diagram of locking the male connector and the female connector.

[0175] Figure 107 is the second schematic diagram of the headrest being inserted into the seat.

[0176] FIG. 108 is a schematic diagram of a male connector extruding a locking plate.

[0177] Figure 109 is a YY cross-sectional view of Figure 108.

[0178] Figure 110 is a ZZ cross-sectional view of Figure 108.

[0179] Figure 111 is the third schematic diagram of the headrest being inserted into the seat.

[0180] FIG112 is one of the schematic diagrams showing the male connector squeezing the locking piece and deforming the locking piece.

[0181] Figure 113 is a cross-sectional view taken along line A1-A1 of Figure 112 .

[0182] Figure 114 is a B1-B1 cross-sectional view of Figure 112.

[0183] Figure 115 is a schematic diagram of the up and down movement of the headrest rod relative to the headrest rod sleeve assembly.

[0184] FIG116 is one of the schematic diagrams showing the headrest being pulled out from the seat.

[0185] Figure 117 is a schematic diagram of the headrest rod sleeve assembly extrusion spring.

[0186] Figure 118 is a C1-C1 cross-sectional view of Figure 117.

[0187] Figure 119 is a second schematic diagram of the headrest being pulled out from the seat.

[0188] Figure 120 is a schematic diagram of the locking connection between the retaining spring and the female connector.

[0189] Figure 121 is a C1-C1 cross-sectional view of Figure 120.

[0190] Figure 122 is a schematic diagram of the headrest being completely pulled out from the seat.

[0191] FIG123 is a schematic diagram showing the state between the male connector and the headrest rod sleeve assembly after the headrest is completely pulled out from the seat.

[0192] Figure 124 is a cross-sectional view taken along line E1-E1 of Figure 123 .

[0193] Figure 125 is one of the structural schematic diagrams of another headrest rod sleeve assembly.

[0194] FIG126 is one of the structural schematic diagrams of another male end connector.

[0195] FIG127 is a second schematic diagram of the structure of another male connector.

[0196] FIG128 is a schematic diagram of the structure of another male terminal.

[0197] Figure 129 is a schematic diagram of the appearance of another headrest rod sleeve assembly assembled with another male end connector.

[0198] Figure 130 is a view taken in the direction A of Figure 129.

[0199] Figure 131 is a G1-G1 cross-sectional view of Figure 130.

[0200] Figure 132 is a schematic diagram of another male connector being inserted into another female connector.

[0201] Figure 133 is a cross-sectional view of the headrest rod in the lower limit position.

[0202] Figure 134 is a cross-sectional view of the headrest rod in the upper limit position.

[0203] Figure 135 is a schematic perspective view of the fixed connection structure of the headrest guide sleeve, skeleton bracket and sleeve member.

[0204] Figure 136 is an AA cross-sectional view of Figure 135.

[0205] Figure 137 is a schematic perspective view of a headrest guide sleeve.

[0206] Figure 138 is a cross-sectional view of the headrest guide sleeve.

[0207] Figure 139 is a schematic perspective view of a skeleton support.

[0208] Figure 140 is a schematic perspective view of the sleeve member as viewed from one direction.

[0209] Figure 141 is a schematic perspective view of the sleeve member viewed from another direction.

[0210] Figure 142 is a cross-sectional view of the sleeve member. DETAILED DESCRIPTION

[0211] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0212] 27 and 29 to 87 , the pluggable connector device with an automatic unlocking and locking mechanism shown in the figures mainly includes a male connector assembly and a female connector 100 .

[0213] The male connector assembly includes a headrest rod sleeve assembly 200 (see FIG. 4 ), a male connector 300 , and a male connector harness 330 (see FIG. 5 ) electrically connected to the male connector 300 .

[0214] With particular reference to Figures 3 and 40 to 42, a clamping structure 210 is provided on the outer periphery of the headrest rod sleeve assembly 200, and an arc-shaped clamping interface 211 is provided on the clamping structure 210. During installation, the arc-shaped clamping interface is clamped onto the steel wire 510 in the seat back frame 560 to secure the headrest rod sleeve assembly 200 to the seat back.

[0215] With particular reference to Figures 31 to 39 and 43 to 46, two guide grooves 240 are circumferentially disposed on the headrest rod sleeve assembly 200. A locking plate mounting portion 220 is disposed within each guide groove 240. Each locking plate mounting portion 220 includes a locking plate mounting groove 221 and a latching interface 222. The latching interface 222 extends through the first end of the locking plate mounting groove 221. A limiting rib 221a is disposed at the first end of the locking plate mounting groove 221, and a limiting groove 221b is disposed within the locking plate mounting groove 221. Furthermore, a beveled edge 241 is disposed within each guide groove 240.

[0216] 29 and 30 , a first end of the locking plate 230 is provided with an elastic fixing portion 231 and a limiting portion 232. The second end of the locking plate 230 is a free end provided with a movable portion 233. An outwardly protruding elastic locking protrusion 234 is provided in the middle of the locking plate 230. The upper and lower sides of the elastic locking protrusion 234 are respectively provided with an upper inclined surface 235 (the aforementioned first upper inclined surface) and a lower inclined surface 236 (the aforementioned first lower inclined surface).

[0217] The locking piece 230 consists of two pieces, one mounted in each of the two locking piece mounting slots 221. The elastic fixing portion 231 on the locking piece 230 engages the locking interface 222, preventing the locking piece 230 from falling out of the locking piece mounting slot 221. After the locking piece 230 is installed in the locking piece mounting slot 221, the limiting rib 221a contacts the limiting portion 232, limiting the movement of the locking piece 230 in its longitudinal direction.

[0218] The limiting groove 221 b is adapted to the shape of the elastic locking protrusion 234 , and the elastic locking protrusion 234 is restricted from moving in the limiting groove 221 b to prevent the elastic locking protrusion 234 from popping out excessively.

[0219] 47 and 48 , a gap Y is reserved between the moving portion 233 of the locking plate 230 and the second end 221c of the locking plate mounting groove 221. When the elastic locking protrusion 234 of the locking plate 230 is squeezed by an external force, the locking plate 230 is squeezed and deformed, moving upward and rightward, and the X-distance becomes smaller. At the same time, the moving portion 233 of the locking plate 230 moves to the right, and the Y-value gap decreases.

[0220] With particular reference to Figures 49 to 59, the male connector 300 includes a male connector body 310 having a male terminal mounting portion 311 and a wiring harness connection portion 312. The male terminal mounting portion 311 is configured to receive a male terminal 360, as shown in Figures 68 and 69. A conductive rod mounting hole 313 is provided within the male terminal mounting portion 311 and the wiring harness connection portion 312, into which a male terminal conductive rod 320 is inserted. The male terminal conductive rod 320 is made of a conductive material, such as copper, to provide excellent electrical conductivity.

[0221] The male connector harness 330 is inserted into the male terminal conductive rod 320 and fastened or clamped by a tie 331 or a clamp. The male connector harness 330 is electrically connected to the section of the male terminal conductive rod 320 that is inserted into the harness connection portion 312.

[0222] A pair of guide structures 314 are provided on the periphery of the harness connection portion 312 . The guide structures 314 move in the guide grooves 240 in the headrest rod sleeve assembly 200 , preferably in a guided state.

[0223] At least one, for example, each, guide structure 314 is provided with a spring mounting groove 314a, and each guide structure 314 is provided with a fixed protrusion 314b. The upper and lower sides of the fixed protrusion 314b are provided with an upper inclined surface 314ba (the aforementioned second upper inclined surface) and a lower inclined surface 314bb (the aforementioned second lower inclined surface), respectively. The guide structure 314 is also provided with a pair of coaxial axial holes 314c. A beveled edge 314d is provided within the spring mounting groove 314a, and a groove 314e is provided at the bottom of the spring mounting groove 314a. Each guide structure 314 includes two walls, with the fixed securing portion provided on one of the walls, preferably on the upper side of the wall.

[0224] In one embodiment of a torsion spring and a retaining spring, referring particularly to FIG. 60 , a torsion spring 350 has a spring cylindrical pin through-hole 351 and a pair of elastic edges 352 , 353 .

[0225] With particular reference to Figures 61 to 63, the retaining spring 340 (when viewed in the transverse direction) is U-shaped and has a U-shaped groove 346. An introduction portion 341 and a locking portion 342 are provided at one end of the retaining spring 340. When viewed in the vertical direction in the installed state, the introduction portion is located above the locking portion. An unlocking drive portion 343 and a supporting edge 344 are provided at the other end of the retaining spring 340. The introduction portion 341 is a beveled structure. The unlocking drive portion 343 is an arc structure. The locking portion 342 is a stepped structure. A pair of coaxial retaining spring cylindrical pin holes 345 are provided in the middle position of the retaining spring 340.

[0226] With particular reference to Figures 49, 64 to 67, 70, and 71, a retaining spring 340 and a torsion spring 350 are hingedly mounted within the spring mounting groove 314a. The torsion spring 350 is mounted within the U-shaped groove 346 of the retaining spring 340. The retaining spring 340 and the torsion spring 350 are mounted within the spring mounting groove 314a by inserting a cylindrical pin 370 through a pair of axial holes 314c of the guide structure 314, a pair of retaining spring cylindrical pin through-holes 345 of the retaining spring 340, and a spring cylindrical pin through-hole 351 of the torsion spring 350. The elastic edge 352 of the torsion spring 350 contacts the supporting edge 344 of the retaining spring 340, and the elastic edge 352 of the torsion spring 350 is engaged within the groove 314e.

[0227] In another embodiment of a torsion spring and a circlip, as shown in Figures 67a to 67g, the circlip and torsion springs are integrally combined to form a circlip assembly 340a. A pair of rotational positioning portions 341a are formed directly in the center of the circlip assembly 340a. These rotational positioning portions 341a allow the circlip 340a to be mounted in the spring mounting slot 314a. An introduction portion 342a and a clamping portion 343a are formed directly at one end of the circlip 340a. An elastic portion 344a is formed between the pair of rotational positioning portions 341a. After the circlip assembly 340a is installed, the pair of rotational positioning portions 341a engage with the pair of axial holes 314c of the guide structure 314, and the elastic portion 344a acts on the bottom edge of the spring mounting slot 314a. A support portion 345a is formed at the other end of the retaining spring assembly 340a. When the support portion 345a hits the bevel portion 241 in the headrest rod sleeve assembly 200, the bevel portion 241 drives the retaining spring assembly 340a to rotate around a pair of rotational positioning portions 341a, preferably around the central axis of the pair of rotational positioning portions 341a, through the support portion 345a, so that the clamping portion 343a withdraws from the locking hole 115 on the female terminal connector body 110, thereby disengaging the male terminal connector 300 from the female terminal connector 100. At this time, the elastic portion 344a is under pressure and stores energy through deformation. When the support portion 345a does not touch the bevel portion 241 in the headrest rod sleeve assembly 200, the restoring force of the elastic portion 344a drives the spring assembly 340a to rotate around a pair of rotation positioning portions 341a, preferably around the central axis of the pair of rotation positioning portions 341a, so that the clamping portion 343a is clamped into the locking hole 115 on the female terminal connector body 110, so that the male terminal connector 300 and the female terminal connector 100 are clamped together.

[0228] To facilitate the insertion of the pair of rotational positioning members 341a into the pair of axial holes 314c of the guide structure 314, a slot 314f is provided adjacent to the pair of axial holes 314c of the guide structure 314. The slot 314f extends through the axial holes 314c. During installation, the pair of rotational positioning members 341a are first inserted into the slot 314f, and then inserted into the pair of axial holes 314c via the slot 314f.

[0229] To limit the position of the retaining spring assembly 340a, an upper limit structure 314g and a lower limit structure 314h are provided within the spring mounting slot 314a. The upper limit structure 314g limits the tilting angle of the retaining spring assembly 340a during insertion, preventing the retaining spring assembly 340a from rotating excessively counterclockwise. The lower limit structure 314h prevents the retaining spring assembly 340a from rotating excessively clockwise. This prevents the retaining spring assembly 340a from rotating excessively counterclockwise or clockwise, preventing insertion of the female terminal connector 100 and the male terminal mounting portion 311.

[0230] 68 and 69 , each male terminal mounting portion 311 is provided with four male terminals 360. Each male terminal 360 has a snap-fit ​​edge 361 at one end and a resilient snap-fit ​​portion 362 at the other end. A resilient conductive contact portion 363 is provided in the middle of each male terminal 360.

[0231] With particular reference to Figures 51 to 59 and 70 to 75, four male terminal mounting slots 311a are evenly distributed around the circumference of the male terminal mounting portion 311. Each male terminal mounting slot 311a radially intersects the conductive rod mounting hole 313 and the exterior of the male terminal mounting portion 311. Each male terminal mounting slot 311a extends axially along the guide post mounting hole 313, with one end of each male terminal mounting slot 311a extending into the wiring harness connection portion 312. Corresponding male terminal stoppers 311aa and 311ab are provided at each end of each male terminal mounting slot 313a.

[0232] The four male terminals 360 are made of a conductive material, such as copper. They are installed in the four male terminal mounting slots 311a and electrically contact the portion of the male terminal conductive rod 320 that is inserted into the male terminal mounting portion 311. The snap-fit ​​edges 361 and resilient snap-fit ​​portions 362 at each end of the male terminal 360 contact the male terminal retaining portions 311aa and 311ab at each end of the male terminal mounting slot 311a, respectively, thereby axially restraining the male terminal 360 within the male terminal mounting slot 311a.

[0233] With particular reference to Figures 11 to 26, a headrest rod locking component 600 is fixedly mounted on the headrest rod sleeve assembly 200. A locking pin mounting hole 630 is provided in the headrest rod locking component 600. A locking pin 610 and a locking pin return spring 620 are press-fitted into the locking pin mounting hole 630. The locking pin return spring 620 acts on the locking pin 610 at one end and on the headrest rod locking component 600 at the other end.

[0234] 76 , the male terminal connector 300 is inserted into the headrest rod sleeve assembly 200 in the direction indicated by arrow A in FIG. 76 .

[0235] Referring to Figures 77 to 87, during the process of inserting the male terminal connector 300 into the headrest rod sleeve assembly 200 in the direction indicated by arrow A in Figure 76, after a pair of guide structures 314 of the harness connection portion 312 are inserted into the two guide grooves 240 on the headrest rod sleeve assembly 200, the upper inclined surface 314ba of the fixed clamping protrusion 314b hits the lower inclined surface 236 of the elastic clamping protrusion 234 of the locking plate 230, and the upper inclined surface 314ba of the fixed clamping protrusion 314b forces the locking plate 230 to open outward through the lower inclined surface 236 of the elastic clamping protrusion 234 of the locking plate 230, so that the fixed clamping protrusion 314b passes over the elastic clamping protrusion 234. After the fixed protrusion 314b passes over the elastic protrusion 234, the locking plate 230 returns to its original position under the action of the restoring force, causing the upper inclined surface 235 of the elastic protrusion 234 to contact the lower inclined surface 314bb of the fixed protrusion 314b, thereby preventing the male connector 300 from falling. Simultaneously, under the action of the torsion spring 350, the unlocking actuator 343 at the lower end of the retaining spring 340 contacts the beveled edge 241 of the headrest rod sleeve assembly 200, thereby preventing the male connector 300 from moving upward. The cooperation between the fixed protrusion 314b and the elastic protrusion 234, and the cooperation between the unlocking actuator 343 at the lower end of the retaining spring 340 and the beveled edge 241 of the headrest rod sleeve assembly 200, restrain the male connector 300 in the pre-installed position (see Figures 8 to 10 for details).

[0236] 28 and 88 to 101 , the female connector 100 includes a female connector body 110 , four female terminals 120 and a female terminal harness 130 (see FIG. 2 ).

[0237] 88 to 91 , two mounting holes 510 and one anti-error groove 520 are provided in the circumferential direction of the headrest rod 500 .

[0238] With particular reference to Figures 92 and 93 , two buckles 111 and a misalignment rib 112 are provided on the outer periphery of the female connector body 110. After the female connector 100 is inserted into the internal cavity 530 of the headrest rod 500, the two buckles 111 snap into the two mounting holes 510, respectively, while the misalignment rib 112 fits into the misalignment groove 520, securing the female connector 100 securely within the internal cavity 530 of the headrest rod 500 (see Figures 6 and 7 in combination).

[0239] A male connector insertion hole 113 is provided within the female connector body 110 to facilitate insertion of the male connector 300. Four female terminal mounting portions 114 are evenly spaced around the circumference of the male connector insertion hole 113. A limiting edge 114a, 114b is provided at each end of the female terminal mounting portion 114, and two locking holes 115 are provided around the circumference of the female connector body 110.

[0240] With particular reference to Figures 98 and 99 , each female terminal 120 comprises an integrally formed female terminal support portion 121 and a female terminal conductive contact portion 122. After the female terminal support portion 121 is folded from one end of the female terminal conductive contact portion 122 to a position substantially parallel to the female terminal conductive contact portion 122, it is fixedly connected to the other end of the female terminal conductive contact portion 122 via a pair of flanges 121a provided on the female terminal support portion 121. A female terminal wire harness welding portion 123 is provided at the other end of the female terminal conductive contact portion 122.

[0241] An elastic clamping portion 122 a is provided on the female terminal conductive contact portion 122 , and two wave portions 121 b are provided on the female terminal support portion 121 (of course, only one wave portion may also be provided).

[0242] Referring to Figures 99a to 99c, male terminal 360b also consists of four pieces. Each piece is provided with a positioning portion 361b at one end and a resilient engaging portion 362b at the other end. A recessed portion 363b is provided between the positioning portion 361b and the resilient engaging portion 362b. During assembly, the positioning portion 361b engages with the male terminal retaining portion 311aa, and the resilient engaging portion 362b contacts the male terminal retaining portion 311ab. The male terminal retaining portions 311aa and 311ab axially constrain the male terminal 360b within the male terminal mounting slot 311a. Furthermore, a protrusion 311ac is provided in the middle of the male terminal mounting slot 311a. The protrusion 311ac engages with the recessed portion 363b, thereby ensuring a better fit of the male terminal 360b within the male terminal mounting slot 311a.

[0243] Referring to Figure 101, the four female terminals 120 are respectively inserted into the four female terminal mounting parts 114 of the female connector body 110, and contact the limiting edge 114a at the fold 125 of the female terminal support part 121 and the female terminal conductive contact part 122, and the elastic clamping part 122a contacts the limiting edge 114b of one end of the female terminal mounting part 114 adjacent to the female terminal wire harness welding part 123, thereby circumferentially restricting the female terminal 120 in the female terminal mounting part 114.

[0244] The two wavy portions 121b on the female terminal support portion 121 contact the bottom surface 114c of the female terminal mounting portion 114, applying a certain elastic force to the female terminal conductive contact portion 122 to better electrically contact and connect with the male terminal 360 on the male terminal connector 300.

[0245] A female terminal sliding contact surface 122 b is provided on a side of the female terminal conductive contact portion 122 facing away from the female terminal support portion 121 .

[0246] The female terminal harness welding portion 123 extends out of the female connector body 110 and is welded to the female terminal harness 130. The female terminal harness 130 passes through the internal cavity 530 of the headrest rod 500 and enters the headrest 540 to be electrically connected to the electrical components (not shown) on the headrest 540 (see FIG1 for details).

[0247] Referring to Figures 101a to 101c, each female terminal mounting portion 114 is also provided with four female terminals 120b. Each female terminal 120b has a snap-fitting portion 121b at one end and a positioning portion 122b at the other end. During assembly, the snap-fitting portion 121b contacts the limiting edge 114a, and the positioning portion 122b is inserted into the limiting edge 114b, thereby axially restraining the female terminal 120b within the female terminal mounting portion 114. Furthermore, a resilient contact portion 123b is provided between the snap-fitting portion 121b and the positioning portion 122b. This resilient contact portion 123b electrically contacts the sliding contact portion 364b between the positioning portion 361b and the male terminal stop portion 311aa of the male terminal 360b, thereby increasing the contact area between the male and female terminals and thereby reducing overcurrent.

[0248] Referring to Figures 103 to 106, when the male connector 300 is inserted into the male connector insertion hole 113 of the female connector 100, when the bottom of the female connector body 110 of the female connector 100 contacts the introduction part 341 on the retaining spring 340, the introduction part 341 on the retaining spring 340 is forced to expand outward through the bottom of the female connector body 110, so that the bottom of the female connector body 110 of the female connector 100 passes over the locking part 342 on the retaining spring 340, and at this time the torsion spring 350 stores energy. After the bottom of the female connector body 110 of the female connector 100 passes over the locking portion 342 on the retaining spring 340, the female connector 100 continues to move downward. The locking portion 342 on the retaining spring 340 is reset under the reset force of the torsion spring 350 and snaps into the locking hole 115 on the female connector body 110, thereby automatically locking the female connector 100 with the male connector 300. At this time, the female terminal sliding contact surface 122b on the female terminal conductive contact portion 122 is electrically connected to the male terminal 360 on the male connector 300.

[0249] After the female connector 100 and the male connector 300 are automatically locked, the unlocking drive portion 343 at the lower end of the retaining spring 340 cooperates with the bevel portion 241 in the headrest rod sleeve assembly 200. Referring to Figures 107 to 110, the upper bevel 235 of the elastic retaining protrusion 234 on the locking plate 230 contacts the lower bevel 314bb of the fixed retaining protrusion 314b on the male connector 300, thereby limiting the male connector 300 to the pre-installed position in the headrest rod sleeve assembly 200.

[0250] At this time, the elastic conductive contact portion 363 on the male terminal 360 of the male connector 300 is electrically contacted and connected with the female terminal conductive contact portion 122 in the female terminal 120 of the female connector 100. While the elastic conductive contact portion 363 is electrically contacted and connected with the female terminal conductive contact portion 122, the pressure of the elastic conductive contact portion 363 makes the male terminal 360 electrically contacted and connected with the male terminal conductive rod 320.

[0251] Referring to Figures 11 to 14, after the female connector 100 and the male connector 300 are automatically locked, the locking pin 610 in the headrest rod locking component 600 installed on the headrest rod sleeve assembly 200 is inserted into a locking groove 550 of the headrest rod 500 under the action of the locking pin return spring 620, thereby locking the headrest rod 500.

[0252] 15 to 18 and 111 to 115 , when the headrest 540 needs to be adjusted downward, the locking pin 610 is squeezed outward by manual operation to compress the locking pin return spring 620 , so that the locking pin 610 exits a locking groove 550 of the headrest rod 500 , allowing the headrest rod 500 to continue to be inserted downward.

[0253] When the headrest rod 500 continues to be inserted downward, the lower inclined surface 314bb of the fixed locking protrusion 314b on the male connector 300 forces the elastic locking protrusion 234 of the locking plate 230 to open outward through the upper inclined surface 235 of the elastic locking protrusion 234 of the locking plate 230, so that the fixed locking protrusion 314b passes over the elastic locking protrusion 234, thereby realizing the unlocking between the male connector 300 and the headrest rod sleeve assembly 200, thereby allowing the headrest rod 500 to carry the male connector 300 and the female connector 100 downward and exit the headrest rod sleeve assembly 200 downward.

[0254] 19 to 22 , when the headrest 540 is inserted to the extreme position, the locking pin 610 in the headrest rod locking component 600 is inserted into the topmost locking groove 550 of the headrest rod 500 under the action of the locking pin return spring 620 , thereby locking the headrest rod 500 .

[0255] 23 to 26 and 116 to 124 , when the headrest 540 needs to be pulled out of the seat back, the headrest 540 is manually pulled upward or lifted, and the upwardly moving headrest rod 500 will squeeze the locking pin 610 outward, compressing the locking pin return spring 620, causing the locking pin 610 to exit a locking groove 550 of the headrest rod 500, allowing the headrest rod 500 to be pulled out.

[0256] When the headrest rod 500 is pulled out upward, the beveled edge portion 241 in the headrest rod sleeve assembly 200 hits the unlocking drive portion 343 at the lower end of the retaining spring 340, pressing the unlocking drive portion 343 to retract inward. At this time, the locking portion 342 at the upper end of the retaining spring 340 expands outward and exits the locking hole 115 on the female terminal connector body 110 of the female connector 100, thereby realizing automatic unlocking of the female connector 100 and the male connector 300.

[0257] After the female connector 100 and the male connector 300 are automatically unlocked, continue to lift the headrest 540, driving the headrest rod 500 to continue to rise and pull out of the seat back. As the headrest rod 500 continues to rise and pull out of the seat back, it drives the female connector 100 to continue to rise and pull out of the seat back, while the male connector 300 continues to stay in the pre-installed position in the headrest rod sleeve assembly 200.

[0258] Referring to Figures 125 to 134 , another structure of the male connector 300 is shown. This structure eliminates the male terminal conductive rod 320 and instead features four male terminals 360a mounted directly on the male connector body 310a. Each male terminal 360a has a male terminal connection terminal 361a formed at its base. A male connector outlet 312a is provided at the bottom of the male connector body 310a. The male terminal connection terminals 361a at the base of the four male terminals 360a are inserted into the male connector outlet 312a. A snap 210a is provided at the bottom of the headrest rod sleeve assembly 200a. During assembly, the male connector outlet 312a snaps into the snap 210a, allowing the receptacle on the male connector harness 330 to be inserted into the male connector outlet 312a, electrically connecting the male connector harness 330 to the four male terminals 360a.

[0259] Because the male connector outlet 312a is locked in the latch 210a, after the headrest rod 500 carries the female connector 100 and is inserted into the male connector 300a and locked, it can move downward with the male connector 300a and exit the headrest rod sleeve assembly 200a. If it is necessary to remove the female connector 100, the latch 210a at the bottom of the headrest rod sleeve assembly 200a restricts the male connector outlet 312a, so the male connector 300a will not move upward and will remain in the pre-installed position of the headrest rod sleeve assembly 200a.

[0260] 135 to 142 , unlike the previous embodiment in which the headrest rod sleeve assembly 200 is secured to the seat back by engaging the arc-shaped engagement interface 211 of the engagement structure 210 with the steel wire 510 in the seat back frame 560, in this embodiment, the headrest rod sleeve assembly 200b includes a headrest guide sleeve 210b and a sleeve member 220b configured to guide the headrest rod 500. The headrest guide sleeve 210b and the sleeve member 220b are secured to the frame frame 570 by inserting the headrest guide sleeve 210b through the frame frame 570 and then sleeve member 220b onto the frame frame 570 and the headrest guide sleeve 210b. Here, a plug-in connection is employed for securing. The headrest guide sleeve 210b can pass through the hollow frame bracket 570 and enter the sleeve member 220b to be fixedly connected to the sleeve member 220b. In the installed state, the frame bracket 570 respectively abuts the headrest guide sleeve 210b and the sleeve member 220b with corresponding end sides. In the installed state, the frame bracket 570 is located between the headrest guide sleeve 210b and the sleeve member 220b.

[0261] The sleeve member 220b has a recessed portion 221b at one end for receiving the frame bracket 570, and the bottom surface of the recessed portion 221b is configured to abut against the frame bracket 570. In the installed state, the side wall of the sleeve member 220b located in the region of the recessed portion 221b surrounds the frame bracket 570. The headrest guide sleeve 210b can be fixedly connected to the sleeve member 220b via a snap-fit ​​structure. To this end, an opening 222b for snap-fit ​​is provided in the circumferential side wall of the sleeve member 220b, and an elastically deformable snap-fit ​​mechanism 211b is provided circumferentially on the headrest guide sleeve 210b. The snap-fit ​​mechanism 211b is configured to snap into the opening 222b for snap-fit ​​of the sleeve member 220b. The snap-fit ​​mechanism 211b is preferably configured as an elastic snap.

[0262] It should be noted that the terms used herein are for the purpose of describing specific aspects only and are not intended to limit the disclosure. As used herein, the singular forms "a" and "the one" shall include the plural forms unless the context clearly indicates otherwise. It will be understood that the terms "include" and "comprise" and other similar terms, when used in the application documents, specify the presence of the stated operations, elements and / or parts, and do not exclude the presence or addition of one or more other operations, elements, parts and / or combinations thereof. As used herein, the term "and / or" includes all arbitrary combinations of one or more related enumerated items. In the description of the drawings, similar reference numerals always represent similar elements.

[0263] The thickness of the elements in the accompanying drawings can be exaggerated for the sake of clarity. It will also be understood that if an element is referred to as being on, coupled to, or connected to another element, then the element can be formed directly on, coupled to, or connected to the other element, or one or more intervening elements can be present between them. On the contrary, if the expressions "directly on...", "directly coupled to...", and "directly connected to..." are used herein, then there is no intervening element. Other words used to illustrate the relationship between elements should be interpreted similarly, such as "between..." and "directly between...", "attached to," and "directly attached to," "adjacent to," and "directly adjacent to," etc.

[0264] Terms such as "top," "bottom," "above," "below," "upper," "below," etc., are used herein to describe the relationship of one element, layer, or region to another element, layer, or region as illustrated in the figures. It will be understood that these terms are intended to encompass orientations of the device in addition to the orientation depicted in the figures.

[0265] It will be understood that although the terms "first," "second," and the like may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of the present invention.

[0266] It is also conceivable that all exemplary embodiments disclosed herein can be combined with one another in any desired manner.

[0267] Finally, it should be pointed out that the above embodiments are only used to understand the present invention and do not limit the scope of protection of the present invention. For those skilled in the art, modifications can be made based on the above embodiments, and these modifications do not depart from the scope of protection of the present invention.

Claims

1. A pluggable connector device, comprising a male connector assembly, the male connector assembly comprising a headrest rod sleeve assembly and a male connector and a male connector harness electrically connected to the male connector, characterized in that: The headrest rod sleeve assembly can be fixed to the seat back frame; The male connector is preinstalled in the headrest rod sleeve assembly; The male connector is configured to follow the female connector into and out of the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector; The male connector is also configured to return to the headrest rod sleeve assembly and be in a pre-installed state after the female connector is separated from the male connector.

2. The pluggable connector device according to claim 1, characterized in that: At least one locking plate is installed in the headrest rod sleeve assembly, and the male connector can be locked in the headrest rod sleeve assembly by the locking plate, so that the male connector is in a pre-installed state; preferably, when the male connector follows the female connector to extend out of the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector, the locking plate can be bounced open to break away from contact with the male connector and unlock the male connector; preferably, when the male connector returns to the pre-installed state after the female connector is separated from the male connector, the locking plate can be elastically reset to re-lock the male connector and put the male connector in a pre-installed state.

3. The pluggable connector device according to claim 2, characterized in that: Two locking plates are provided and are circumferentially mounted in the headrest rod sleeve assembly.

4. The pluggable connector device according to claim 2 or 3, characterized in that: Two locking plate mounting parts are arranged in the circumferential direction of the headrest rod sleeve assembly, and each locking plate is respectively mounted in one locking plate mounting part.

5. The pluggable connector device according to claim 4, characterized in that: The lock plate mounting portion includes a lock plate mounting groove, and the lock plate mounting groove is configured to allow the lock plate to be installed in the lock plate mounting groove. Preferably, the lock plate mounting portion also includes a card interface, and the card interface is connected to the first end of the lock plate mounting groove. An elastic fixing portion is provided at the first end of the lock plate, and when the lock plate is installed in the lock plate mounting groove, the elastic fixing portion can be inserted into the card interface so that the lock plate will not fall out of the lock plate mounting groove.

6. The pluggable connector device according to claim 5, characterized in that: A limiting portion is also provided at the first end of the locking plate, and a limiting rib is provided at the first end of the locking plate mounting groove. After the locking plate is installed in the locking plate mounting groove, the limiting rib can contact the limiting portion to limit the movement of the locking plate in its length direction.

7. The pluggable connector device according to claim 5 or 6, characterized in that: An outwardly protruding elastic locking protrusion is provided at the middle position of the locking plate, and the elastic locking protrusion can be locked and contacted with the male connector, so that the male connector is in a pre-installed position in the headrest rod sleeve assembly; preferably, when the male connector follows the female connector to enter and exit the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector, the elastic locking protrusion can be elastically deformed to break away from contact with the male connector or re-contact with the male connector.

8. The pluggable connector device according to claim 7, characterized in that: A first upper inclined surface and a first lower inclined surface are respectively provided at the upper and lower sides of the elastic clamping protrusion, and when the male connector contacts the first upper inclined surface, the elastic clamping protrusion can be driven to deform and the elastic clamping protrusion can be separated from the contact with the male connector, so that the male connector can follow the female connector to exit the headrest rod sleeve assembly; When the male connector contacts the first lower slope, the elastic clamping protrusion can be driven to deform, so that the male connector passes over the elastic clamping protrusion and returns to the pre-installed state and is restricted in the pre-installed position by the elastic clamping protrusion.

9. The pluggable connector device according to claim 8, characterized in that: A limiting groove is arranged in the locking piece installation groove, and the limiting groove is adapted to the shape of the elastic clamping protrusion. The elastic clamping protrusion can be restricted in the limiting groove to move, so as to prevent the elastic clamping protrusion from being excessively ejected.

10. The pluggable connector device according to claim 5 or 6, characterized in that: A second end of the locking plate opposite to the first end of the locking plate is a free end.

11. The pluggable connector device according to claim 8, characterized in that: The male connector includes a male connector body, which has a male terminal mounting portion and a wiring harness connecting portion. The male terminal wiring harness can be electrically connected to the wiring harness connecting portion. At least one fixed clamping protrusion is arranged on the periphery of the wiring harness connecting portion. The fixed clamping protrusion can cooperate with the elastic clamping protrusion to limit the male connector to a pre-installed position; when the male connector follows the female connector to enter and exit the headrest rod sleeve assembly, the fixed clamping protrusion can drive the elastic clamping protrusion to deform.

12. The pluggable connector device according to claim 11, characterized in that: A second upper bevel and a second lower bevel are respectively provided at the upper and lower sides of the fixed locking protrusion, and when the second lower bevel contacts the first lower bevel, the male connector can be restricted in the pre-installed position; preferably, when the male connector follows the female connector to prepare to exit the headrest rod sleeve assembly, the second lower bevel can drive the locking plate to expand outwardly through the first lower bevel, so that the fixed locking protrusion is freed from the restriction of the elastic locking protrusion, so that the male connector can follow the female connector to exit the headrest rod sleeve assembly; preferably, when the male connector follows the female connector to re-enter the headrest rod sleeve assembly and the second upper bevel contacts the first lower bevel, the second upper bevel can drive the locking plate to expand outwardly through the first lower bevel, so that the fixed locking protrusion passes over the elastic locking protrusion, so that the male connector returns to the pre-installed position.

13. The pluggable connector device according to claim 11 or 12, characterized in that: The male connector harness can be inserted into the harness connection portion and fastened or clamped by a cable tie or a clamp.

14. The pluggable connector device according to claim 11 or 12, characterized in that: At least one guide groove is arranged in the headrest rod sleeve assembly, and the lock plate installation groove is arranged in the guide groove; at least one guide structure is arranged on the periphery of the wiring harness connecting part, and the fixed clamping protrusion is arranged on the guide structure, and the guide structure can move in the guide groove.

15. The pluggable connector device according to claim 14, characterized in that: A spring installation groove is provided in the guide structure, and a retaining spring and a torsion spring are hinged in the spring installation groove. The torsion spring acts on the guide structure with one end and on the retaining spring with the other end. When the torsion spring is released, the torsion spring can drive the retaining spring to lock the female connector so that the female connector is combined with the male connector. When the female connector needs to be disengaged from the male connector, the retaining spring can be disengaged from the locking connection with the female connector under the action of external force, and the torsion spring stores energy at this time.

16. The pluggable connector device according to claim 15, characterized in that: An introduction portion and a locking portion are provided at one end of the retaining spring. When observed in the vertical direction in the installed state, the introduction portion is located above the locking portion. When the male connector is inserted into the female connector, the female connector can drive one end of the retaining spring to expand outward through the introduction portion, so that the female connector passes over the locking portion, so that the female connector is fully combined with the male connector and locked by the locking portion.

17. The pluggable connector device according to claim 16, characterized in that: An unlocking drive portion is provided at the other end of the retaining spring, and a bevel portion is provided in the spring mounting groove. When the bevel portion interacts with the unlocking drive portion, on the one hand, the male connector can be restricted to the pre-installed position, and on the other hand, one end of the retaining spring can be driven by the unlocking drive portion to move in the unlocking direction, so that the locking portion and the female connector are disengaged from the locking connection. Preferably, under the action of the torsion spring, the unlocking drive portion provided at the lower end of the retaining spring can contact the bevel portion in the spring mounting groove, thereby limiting the upward movement of the male terminal connector. Preferably, in the process of pulling the headrest rod upward, when the bevel portion in the spring mounting groove hits the unlocking drive portion provided at the lower end of the retaining spring, the unlocking drive portion can be pressed to contract inwardly, thereby expanding the locking portion provided at the upper end of the retaining spring outwardly, thereby disengaging the locking portion from the female connector from the locking connection. Preferably, the unlocking drive portion has an arc structure.

18. The pluggable connector device according to claim 11 or 12, characterized in that: A conductive rod mounting hole is provided in the male terminal mounting portion and the wiring harness connecting portion, and a male terminal conductive rod can be inserted into the conductive rod mounting hole. The section of the male terminal conductive rod inserted into the male terminal mounting portion is electrically contacted with the female connector, and the section of the male terminal conductive rod inserted into the wiring harness connecting portion is electrically connected to the male connector wiring harness.

19. The pluggable connector device according to claim 18, characterized in that: At least one male terminal mounting groove is arranged on the circumference of the male terminal mounting portion, and the male terminal mounting groove is radially connected with the conductive rod mounting hole and the outside of the male terminal mounting portion, and the male terminal mounting groove extends along the axial direction of the guide column mounting hole; preferably, a male terminal is installed in the male terminal mounting groove, and the male terminal is configured to be in electrical contact with the male terminal conductive rod on the one hand, and in electrical contact with the female connector on the other hand.

20. The pluggable connector device according to claim 19, characterized in that: One end of the male terminal mounting groove extends into the wiring harness connecting portion. Preferably, male terminal limiting portions are provided at both ends of the male terminal mounting groove, and the male terminal limiting portions at both ends of the male terminal mounting groove can axially limit the male terminal in the male terminal mounting groove.

21. The pluggable connector device according to claim 20, characterized in that: A clamping edge is provided at one end of the male terminal, and an elastic clamping portion is provided at the other end of the male terminal. The clamping edge and the elastic clamping portion can respectively contact the male terminal limiting portions at both ends of the male terminal installation groove to axially limit the male terminal in the male terminal installation groove.

22. The pluggable connector device according to any one of claims 19 to 21, characterized in that: An elastic conductive contact portion is provided at the middle position of the male terminal, and the elastic conductive contact portion can be electrically contacted and connected with the female connector. While the elastic conductive contact portion is electrically contacted and connected with the female connector, the male terminal can be electrically contacted and connected with the male terminal conductive rod by relying on the pressure of the elastic conductive contact portion.

23. The pluggable connector device according to claim 1 or 2, characterized in that: A headrest rod locking component is fixedly mounted on the headrest rod sleeve assembly, a locking pin mounting hole is provided in the headrest rod locking component, a locking pin and a locking pin return spring are press-fitted in the locking pin mounting hole, and the locking pin return spring acts on the locking pin with one end and acts on the headrest rod locking component with the other end.

24. The pluggable connector device according to claim 1, characterized in that: The male connector includes a male connector body, at least one male terminal installed on the male connector body, and a male connector wiring harness, and a male terminal wiring terminal is formed at the bottom end of each male terminal; preferably, a male connector outlet is provided at the bottom of the male connector body, and the male terminal wiring terminal at the bottom end of the male terminal can be inserted into the male connector outlet; preferably, a bayonet is provided at the bottom of the headrest rod sleeve assembly, and during assembly, the male connector outlet can be inserted into the bayonet, and the socket on the male connector wiring harness can be inserted into the male connector outlet, so that the male connector wiring harness is electrically connected to the male terminal.

25. The pluggable connector device according to claim 1 or 2, characterized in that: The pluggable connector device also includes a female connector, which can be installed on the headrest rod. After the male connector is inserted into the female connector and combined with the female connector, electrical contact connection can be made between the male connector and the female connector.

26. The pluggable connector device according to claim 25, characterized in that: The female connector includes a female connector body, at least one female terminal mounted on the female connector body, and a female terminal wiring harness electrically connected to the female terminal. The female connector body can be sleeved in the internal cavity of the headrest rod, and the female terminal wiring harness can pass through the internal cavity of the headrest rod into the headrest and be electrically connected to electrical components arranged at the headrest.

27. The pluggable connector device according to claim 26, characterized in that: At least one buckle is arranged on the outer periphery of the female connector body, and at least one mounting hole is arranged on the circumference of the headrest rod. The buckle can be inserted into the mounting hole, so that the female connector body is fixed in the internal cavity of the headrest rod.

28. The pluggable connector device according to claim 26 or 27, characterized in that: An anti-mistake rib is arranged on the female connector body, and an anti-mistake groove is arranged on the headrest rod. The anti-mistake rib can be inserted into the anti-mistake groove, so that the female connector body is anti-mistakenly sleeved in the internal cavity of the headrest rod.

29. The pluggable connector device according to claim 26 or 27, characterized in that: A male terminal connector insertion hole is provided in the female connector body, and the male terminal connector can be inserted into the male terminal connector insertion hole; preferably, at least one female terminal mounting portion is provided on the circumference of the hole wall of the male terminal connector insertion hole, and the female terminal can be mounted in the female terminal mounting portion, and the female terminal can be electrically contacted and connected with the male terminal on the male terminal connector after the male connector is inserted into the male terminal connector insertion hole.

30. The pluggable connector device according to claim 29, characterized in that Restriction edges are respectively provided at both ends of the female terminal mounting portion, and the female terminal can be axially restricted within the female terminal mounting portion through the restriction edges at both ends of the female terminal mounting portion.

31. The pluggable connector device according to claim 29, characterized in that: The female terminal includes an integrally formed female terminal support portion and a female terminal conductive contact portion, the female terminal support portion is fixed to the other end of the female terminal conductive contact portion after being folded from one end of the female terminal conductive contact portion to a state roughly parallel to the female terminal conductive contact portion, the female terminal support portion can contact the female terminal mounting portion, and the female terminal conductive contact portion can be electrically contacted and connected with the male terminal on the male terminal connector; preferably, a female terminal wiring harness welding portion is provided at the other end of the female terminal conductive contact portion, the female terminal wiring harness welding portion extends out of the female connector body and is welded and connected to the female terminal wiring harness.

32. The pluggable connector device according to claim 31, characterized in that: The female terminal supporting portion and the other end of the female terminal conductive contact portion are fixedly connected with the other end of the female terminal conductive contact portion through a flange arranged on the female terminal supporting portion.

33. The pluggable connector device according to claim 31 or 32, characterized in that: An elastic clamping portion is arranged on the conductive contact portion of the female terminal, and the elastic clamping portion can contact with a limiting edge of the female terminal mounting portion adjacent to one end of the female terminal wire harness welding portion.

34. The pluggable connector device according to claim 31 or 32, characterized in that: At least one wavy portion is provided on the female terminal support portion, and the wavy portion can contact the female terminal mounting portion to apply a certain elastic force to the female terminal conductive contact portion, thereby better electrically contacting and connecting with the male terminal on the male terminal connector.

35. The pluggable connector device according to claim 16 or 17, characterized in that: The pluggable connector device also includes a female connector, which can be installed on the headrest rod. After the male connector is inserted into the female connector and combined with the female connector, electrical contact can be made between the male connector and the female connector. The female connector includes a female connector body, which can be sleeved in the internal cavity of the headrest rod. At least one locking hole is arranged in the circumference of the female connector body. After the male connector is inserted into the male terminal connector insertion hole, the locking portion at one end of the retaining spring in the male connector can be embedded in the locking hole to lock the male connector and the female connector together; when unlocking, the locking portion at one end of the retaining spring in the male connector can withdraw from the locking hole to achieve unlocking.

36. The pluggable connector device according to claim 1, characterized in that: The headrest rod sleeve assembly can be clamped on the seat back frame.

37. The pluggable connector device according to claim 1, characterized in that: The headrest rod sleeve assembly comprises a headrest guide sleeve and a sleeve member, wherein the headrest guide sleeve is configured to guide the headrest rod, wherein the headrest guide sleeve and the sleeve member can be fixed to the frame support through a plug-in connection between the headrest guide sleeve, the hollow frame support and the sleeve member.

38. The pluggable connector device according to claim 37, characterized in that: The headrest guide sleeve can pass through the hollow frame support into the sleeve member and be fixedly connected with the sleeve member, wherein the frame support in the installed state respectively abuts against the headrest guide sleeve and the sleeve member with corresponding end sides, thereby realizing the sleeve-limiting fixation of the headrest rod sleeve assembly.

39. The pluggable connector device according to claim 38, characterized in that The sleeve part has a cutout at one end for receiving the frame bracket, wherein the bottom surface of the cutout is designed for abutment of the frame bracket, wherein in the installed state the side walls of the sleeve part in the region of the cutout surround the frame bracket.

40. The pluggable connector device according to claim 38 or 39, characterized in that: An opening for snapping is provided in the circumferential side wall of the sleeve member, and an elastically deformable snapping mechanism is provided circumferentially on the headrest guide sleeve, the snapping mechanism is configured to snap into the opening for snapping of the sleeve member, and preferably, the snapping structure is configured as an elastic buckle.

41. A vehicle seat comprising a pluggable connector device according to any one of claims 1 to 40.

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