Conductive connecting device and vehicle seat

Abstract

The utility model relates to a conductive connecting device and a vehicle seat, the conductive connecting device comprises a wire harness assembly, a magnetic conductive head and a magnetic conductive seat, the wire harness assembly is connected to the magnetic conductive head, and when the magnetic conductive head makes contact with and attracts the magnetic conductive seat in the preset direction, the wire harness assembly can be electrically connected to the magnetic conductive seat through the magnetic conductive head; at least part of the wire harness assembly is arranged in a tortuous shape in the preset direction, the length of the wire harness assembly in the preset direction can be increased through stretching of the wire harness assembly, the end, away from the magnetic conductive head, of the wire harness assembly can move in the direction away from the magnetic conductive base, and the magnetic conductive head and the magnetic conductive base are electrically connected. According to the conductive connecting device and the vehicle seat, the problem that after an existing headrest is pulled out, a wire harness is disconnected from a connector, and power failure is caused is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wiring harness electrical connection structure, and particularly relates to a conductive connection device and a vehicle seat. BACKGROUND

[0002] Generally, in order to improve the sound effect in the vehicle, a loudspeaker is usually arranged at the position of the headrest, one end of the wiring harness of the headrest loudspeaker is electrically connected with the loudspeaker and fixed in the headrest support column, and the other end of the wiring harness is electrically connected with the connector in the seat body after the headrest assembly is inserted into the headrest guide sleeve. Due to the existence of the wiring harness and the connector, the headrest cannot be completely pulled out of the seat, and if the headrest is forcibly pulled out, the wiring harness and the connector will be disconnected and cannot be reinstalled. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a conductive connection device and a vehicle seat to solve the problem that the wiring harness is disconnected from the connector after the headrest is pulled out, resulting in power failure.

[0004] The conductive connection device provided by the present application comprises a wiring harness assembly, a magnetic conductive head and a magnetic conductive seat, the wiring harness assembly is connected to the magnetic conductive head, the wiring harness assembly can be electrically connected to the magnetic conductive seat through the magnetic conductive head when the magnetic conductive head contacts and attracts the magnetic conductive seat along a preset direction, at least part of the wiring harness assembly is arranged in a tortuous shape along the preset direction, the wiring harness assembly can increase its length along the preset direction by stretching itself, and the end of the wiring harness assembly away from the magnetic conductive head can move towards the direction away from the magnetic conductive seat, and the magnetic conductive head and the magnetic conductive seat remain electrically connected.

[0005] In one of the embodiments, the wiring harness assembly comprises a positive electrode wire, a negative electrode wire and an elastic sleeve, the elastic sleeve covers the outside of the positive electrode wire and the negative electrode wire, at least part of the elastic sleeve is arranged in a tortuous shape along the preset direction, and the elastic sleeve can be straightened into a straight line or rolled into a tortuous shape along the preset direction.

[0006] In one of the embodiments, the magnetic conductive head comprises a positive electrode head, a negative electrode head and an insulating separator, the positive electrode wire is connected to the positive electrode head, the negative electrode wire is connected to the negative electrode head, and the insulating separator electrically separates the positive electrode head and the negative electrode head; the insulating separator is sleeved on the outer circumferential side of the positive electrode head, and the negative electrode head is sleeved on the outer circumferential side of the insulating separator; or the insulating separator is sleeved on the outer circumferential side of the negative electrode head, and the positive electrode head is sleeved on the outer circumferential side of the insulating separator.

[0007] In one of the embodiments, when the insulating separator is sleeved on the outer periphery of the positive electrode head and the negative electrode head is sleeved on the outer periphery of the insulating separator, the positive electrode head is inserted into the insulating separator at one end and is stopped at the other end away from the wire harness assembly, the insulating separator is inserted into the negative electrode head at one end and is stopped at the other end away from the wire harness assembly; when the insulating separator is sleeved on the outer periphery of the negative electrode head and the positive electrode head is sleeved on the outer periphery of the insulating separator, the negative electrode head is inserted into the insulating separator at one end and is stopped at the other end away from the wire harness assembly, the insulating separator is inserted into the positive electrode head at one end and is stopped at the other end away from the wire harness assembly.

[0008] In one of the embodiments, the conductive connecting device further comprises a receiving cover sleeved on and connected to the end of the magnetic conductive head close to the wire harness assembly for receiving the positive electrode wire and the negative electrode wire.

[0009] In one of the embodiments, the conductive connecting device further comprises a support column and a guide sleeve part, the guide sleeve part is installed on the backrest, one end of the wire harness assembly is inserted into the support column and connected to the magnetic conductive head, and the support column can drive the wire harness assembly and the magnetic conductive head to be movably inserted into the guide sleeve part.

[0010] In one of the embodiments, the wire harness assembly comprises a straight connecting segment and a spiral extending segment, the support column is provided with a containing cavity with an opening, the opening of the containing cavity faces the magnetic conductive head, the spiral extending segment is arranged in the containing cavity, one end of the straight connecting segment is connected to the spiral extending segment, and the other end is inserted into the opening of the containing cavity and connected to the magnetic conductive head.

[0011] In one of the embodiments, the magnetic conductive seat is provided with an assembly groove extending along a preset direction, and the magnetic conductive head can be inserted into the assembly groove when the magnetic conductive head and the magnetic conductive seat are in conduction.

[0012] In one of the embodiments, the magnetic conductive head is conical, and the outer diameter of the magnetic conductive head has a decreasing trend along the direction from the wire harness assembly to the magnetic conductive head, and the assembly groove is conical, and the inner diameter of the assembly groove has a decreasing trend along the direction from the wire harness assembly to the magnetic conductive head.

[0013] The application further provides a vehicle seat, which comprises a headrest, a backrest and the conductive connecting device of any one of the above embodiments, the headrest is installed on the backrest, the wire harness assembly is electrically connected to the loudspeaker in the headrest, and the magnetic conductive seat is arranged on the backrest.

[0014] Compared with the prior art, the conductive connecting device and the vehicle seat provided by the application are thus arranged, so that the distal end of the wire harness assembly (one end connected to the headrest) can be moved relative to the magnetic conductive seat to facilitate insertion or disengagement of the headrest from the backrest. During the movement of the distal end of the wire harness assembly, the meandering wire harness assembly can increase its length along the preset direction by stretching itself, so as to adapt to the movement of the distal end of the wire harness assembly away from the backrest. At this time, the magnetic conductive head and the magnetic conductive seat remain electrically connected, that is, the magnetic conductive head and the magnetic conductive seat do not break the electrical connection, so as not to affect the normal playing of the loudspeaker at the headrest.

[0015] Further, when it is necessary to break the electrical connection between the magnetic conductive head and the magnetic conductive seat, it is only necessary to directly pull out the magnetic conductive head with force, and the assembly and disassembly are very simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0017] Figure 1 A cross-sectional structural schematic view of the conductive connecting device of an embodiment provided by the application;

[0018] Figure 2 A structural schematic view of the wire harness assembly of an embodiment provided by the application;

[0019] Figure 3 An assembly structural schematic view of the magnetic conductive head and the receiving cover of an embodiment provided by the application;

[0020] Figure 4 An exploded view of Figure 3 .

[0021] The drawings show that: 100, wire harness assembly; 110, positive wire; 120, negative wire; 130, elastic sleeve; 140, straight connection section; 150, spiral extension section; 200, magnetic conductive head; 210, positive head; 220, negative head; 230, insulating separator; 300, magnetic conductive seat; 310, assembly groove; 400, receiving cover; 500, support column; 510, containing cavity; 600, guide sleeve part. DETAILED DESCRIPTION

[0022] Generally, in order to improve the sound effect in the car, a speaker is usually arranged at the position of the headrest, the wire harness of the headrest speaker is electrically connected with the speaker at one end and fixed in the headrest support, when the headrest assembly is inserted into the headrest guide sleeve, the other end of the wire harness is electrically connected with the connector in the seat body, due to the existence of the wire harness and the connector, the headrest cannot be completely pulled out of the seat, if the headrest is forcibly pulled out, the wire harness and the connector will be disconnected and cannot be reinstalled.

[0023] Please refer to Figures 1-4 , in order to solve the problem that the wire harness is disconnected from the connector after the headrest is pulled out, resulting in power failure, the application provides a conductive connecting device and a vehicle seat, the conductive connecting device comprises a wire harness assembly 100, a magnetic conductive head 200 and a magnetic conductive seat 300, the wire harness assembly 100 is connected to the headrest (not shown in the figure), the magnetic conductive seat 300 is arranged on the backrest (not shown in the figure), the wire harness assembly 100 is connected to the magnetic conductive head 200, when the magnetic conductive head 200 contacts and attracts the magnetic conductive seat 300 along the preset direction, the wire harness assembly 100 can be electrically connected to the magnetic conductive seat 300 through the magnetic conductive head 200.

[0024] It should be noted that the preset direction is the axial direction of the conductive connecting device.

[0025] As shown in Figure 1 , along the preset direction, at least part of the wire harness assembly 100 is arranged in a tortuous shape, the wire harness assembly 100 can increase its length along the preset direction by stretching itself, and the end of the wire harness assembly 100 away from the magnetic conductive head 200 can move towards the direction away from the magnetic conductive seat 300, and the magnetic conductive head 200 and the magnetic conductive seat 300 remain electrically connected.

[0026] By such arrangement, not only can the distal end of the wire harness assembly 100 (the end connected to the headrest) move relative to the magnetic conductive seat 300 to facilitate the insertion or disengagement of the headrest from the backrest, but also during the movement of the distal end of the wire harness assembly 100, the wire harness assembly 100 arranged in a tortuous shape can increase its length along the preset direction by stretching itself to adapt to the movement away of the distal end of the wire harness assembly 100, at this time, the magnetic conductive head 200 and the magnetic conductive seat 300 remain electrically connected, that is, the magnetic conductive head 200 and the magnetic conductive seat 300 will not be disconnected, thereby not affecting the normal playing of the speaker at the headrest.

[0027] Further, when it is necessary to disconnect the electrical connection between the magnetic conductive head 200 and the magnetic conductive seat 300, it is only necessary to directly pull out the magnetic conductive head 200, and the assembly and disassembly are very simple.

[0028] In an embodiment, the magnetic conductive head 200 is a neodymium iron boron magnet, a samarium cobalt magnet or an aluminum nickel cobalt magnet.

[0029] Correspondingly, the magnetic conductive seat 300 is a neodymium iron boron magnet, a samarium cobalt magnet or an aluminum-nickel-cobalt magnet.

[0030] It can be understood that the neodymium iron boron magnet, the samarium cobalt magnet or the aluminum-nickel-cobalt magnet not only has magnetism, but also has good electrical conductivity, and can realize effective conduction of the conductive connection device.

[0031] In an embodiment, as shown in Figure 1 , the magnetic conductive seat 300 is provided with an assembly groove 310 extending along a predetermined direction, and when the magnetic conductive head 200 and the magnetic conductive seat 300 are in conduction, the magnetic conductive head 200 can be inserted into the assembly groove 310.

[0032] In this way, the magnetic conductive head 200 can be limited, and the relative displacement of the magnetic conductive head 200 and the magnetic conductive seat 300 is prevented to cause the electrical connection between the two to be disconnected.

[0033] Further, in an embodiment, the magnetic conductive head 200 is conical, and along the direction from the wire harness assembly 100 to the magnetic conductive head 200, the outer diameter of the magnetic conductive head 200 has a decreasing trend, and the assembly groove 310 is conical, and along the direction from the wire harness assembly 100 to the magnetic conductive head 200, the inner diameter of the assembly groove 310 has a decreasing trend.

[0034] In this way, the head of the magnetic conductive head 200 (the end away from the wire harness assembly 100) is smaller, and the opening of the assembly groove 310 is larger, which is conducive to the magnetic conductive head 200 being quickly inserted into the assembly groove 310 and electrically connected with the magnetic conductive seat 300.

[0035] In an embodiment, as shown in Figure 2 , the wire harness assembly 100 includes a positive wire 110, a negative wire 120 and an elastic sleeve 130, and the positive wire 110 and the negative wire 120 are both provided in the elastic sleeve 130, that is, the elastic sleeve 130 is wrapped on the outside of the positive wire 110 and the negative wire 120, and along a predetermined direction, at least part of the elastic sleeve 130 is arranged in a tortuous shape, and the elastic sleeve 130 can be stretched into a straight line or rolled into a tortuous shape along the predetermined direction.

[0036] In this way, the tortuous arrangement of the positive wire 110 and the negative wire 120 is realized by wrapping the elastic sleeve 130, which is conducive to reducing the manufacturing difficulty of the wire harness assembly 100.

[0037] However, it is not limited thereto, and in other embodiments, the positive wire 110 and the negative wire 120 can also form a tortuous shape through their own insulating layers.

[0038] Further, in an embodiment, as shown in Figure 1 ,Figure 3 and Figure 4 As shown in FIG. 1, the magnetic conductive head 200 comprises a positive electrode head 210, a negative electrode head 220 and an insulating separator 230, the positive electrode wire 110 is connected to the positive electrode head 210, the negative electrode wire 120 is connected to the negative electrode head 220, and the insulating separator 230 electrically separates the positive electrode head 210 and the negative electrode head 220;

[0039] The insulating separator 230 is sleeved on the outer circumferential side of the positive electrode head 210, and the negative electrode head 220 is sleeved on the outer circumferential side of the insulating separator 230;

[0040] Alternatively, the insulating separator 230 is sleeved on the outer circumferential side of the negative electrode head 220, and the positive electrode head 210 is sleeved on the outer circumferential side of the insulating separator 230.

[0041] That is, the insulating separator 230 is arranged between the positive electrode head 210 and the negative electrode head 220 by sleeving, so that the two are insulated.

[0042] It should be noted that the magnetic conductive seat 300 and the magnetic conductive head 200 are correspondingly arranged, that is, the positive electrode corresponds to the positive electrode, and the negative electrode corresponds to the negative electrode.

[0043] In this way, the assembly of the magnetic conductive head 200 is simpler.

[0044] Further, in an embodiment, as shown in Figure 1 、 Figure 3 and Figure 4 When the insulating separator 230 is sleeved on the outer circumferential side of the positive electrode head 210, and the negative electrode head 220 is sleeved on the outer circumferential side of the insulating separator 230, one end of the positive electrode head 210 is sleeved in the insulating separator 230, and the other end is stopped on the side of the insulating separator 230 away from the wire harness assembly 100, one end of the insulating separator 230 is sleeved in the negative electrode head 220, and the other end is stopped on the side of the negative electrode head 220 away from the wire harness assembly 100;

[0045] When the insulating separator 230 is sleeved on the outer circumferential side of the negative electrode head 220, and the positive electrode head 210 is sleeved on the outer circumferential side of the insulating separator 230, one end of the negative electrode head 220 is sleeved in the insulating separator 230, and the other end is stopped on the side of the insulating separator 230 away from the wire harness assembly 100, one end of the insulating separator 230 is sleeved in the positive electrode head 210, and the other end is stopped on the side of the positive electrode head 210 away from the wire harness assembly 100.

[0046] In this way, the assembly of the entire magnetic conductive head 200 can play a certain assembly limiting role.

[0047] Specifically, the innermost positive electrode head 210 or negative electrode head 220 is in a T-shaped columnar shape, the middle insulating separator 230 is in a T-shaped sleeve shape, and the outermost positive electrode head 210 or negative electrode head 220 is in a T-shaped sleeve shape.

[0048] In an embodiment, as shown in Figure 1 , Figure 3 and Figure 4 , the conductive connecting device further comprises a receiving cover 400, which covers and is connected to one end of the magnetic conductive head 200 close to the wire harness assembly 100, for receiving the positive electrode wire 110 and the negative electrode wire 120.

[0049] In this way, the positive electrode wire 110 and the negative electrode wire 120 can be prevented from being exposed to cause electric leakage.

[0050] In an embodiment, as shown in Figure 1 , the conductive connecting device further comprises a support column 500 and a guide sleeve part 600, the guide sleeve part 600 is used to be installed on the backrest, one end of the wire harness assembly 100 is arranged in the support column 500 and connected to the magnetic conductive head 200, and the support column 500 can drive the wire harness assembly 100 and the magnetic conductive head 200 to be movably arranged in the guide sleeve part 600.

[0051] Generally, the wire harness assembly 100 is in a flexible structure, and the support column 500 is in a rigid structure, so that the cooperation between the headrest and the backrest can be more smooth by movably cooperating the support column 500 and the guide sleeve part 600. Moreover, the wire harness assembly 100 is arranged in the support column 500, so that the wire harness assembly 100 can be prevented from being exposed to cause dust accumulation or water adhesion of the wire harness assembly 100, and the sealing performance of the wire harness assembly 100 is effectively improved.

[0052] However, the wire harness assembly 100 can also be arranged outside the support column 500 in other embodiments, so as to reduce the installation difficulty.

[0053] Further, in an embodiment, as shown in Figure 1 , the wire harness assembly 100 comprises a straight connection section 140 and a spiral extension section 150, the support column 500 is provided with a containing cavity 510 with an opening, the opening of the containing cavity 510 faces the magnetic conductive head 200, the spiral extension section 150 is arranged in the containing cavity 510, one end of the straight connection section 140 is connected to the spiral extension section 150, and the other end is arranged in the opening of the containing cavity 510 and connected to the magnetic conductive head 200.

[0054] In this way, the deformation of the wire harness assembly 100 is located in the containing cavity 510 of the support column 500, so that the spiral extension section 150 of the wire harness assembly 100 can be prevented from being exposed to easily entangle the guide sleeve part 600 or other parts in the stretching and rebounding process, and the use safety of the conductive connecting device is improved.

[0055] But not limited to, in other embodiments, the wiring harness assembly 100 can also be all tortuous.

[0056] The application also provides a vehicle seat, comprising a headrest, a backrest and the conductive connecting device of any one of the above embodiments, the headrest is installed on the backrest, the wiring harness assembly 100 is electrically connected with the speaker in the headrest, and the magnetic conductive seat 300 is arranged on the backrest.

[0057] The technical features of the above embodiments can be combined in any way. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0058] The above embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are within the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

[0059] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0060] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0061] In this application, unless otherwise clearly indicated, the terms "mounting", "connected", "connecting", "fixed", "fixing", and the like, should be construed in a broad sense and can be interpreted as fixedly connected, or detachably connected, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication between two elements, or interaction between two elements, unless otherwise clearly indicated and limited. The specific meanings of the above terms in this application can be understood according to the specific circumstances by those of ordinary skill in the art.

[0062] In this application, unless otherwise clearly indicated and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0063] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

Claims

1. An electrically conductive connecting device, characterized in that The application relates to a wire harness assembly (100), a magnetic conductive head (200) and a magnetic conductive base (300), wherein the wire harness assembly (100) is connected to the magnetic conductive head (200), and when the magnetic conductive head (200) contacts and attracts the magnetic conductive base (300) along a preset direction, the wire harness assembly (100) can be electrically connected to the magnetic conductive base (300) through the magnetic conductive head (200). At least part of the wire harness assembly (100) is arranged in a meandering manner along a preset direction, the wire harness assembly (100) can be stretched to increase the length of the wire harness assembly (100) along the preset direction, and the end of the wire harness assembly (100) away from the magnetic conductive head (200) can be moved towards the direction away from the magnetic conductive base (300), and the magnetic conductive head (200) and the magnetic conductive base (300) remain electrically connected.

2. The electrically conductive connection device of claim 1, wherein, The wire harness assembly (100) comprises a positive wire (110), a negative wire (120) and an elastic sleeve (130), the elastic sleeve (130) is wrapped outside the positive wire (110) and the negative wire (120), at least part of the elastic sleeve (130) is arranged in a meandering manner along a preset direction, and the elastic sleeve (130) can be stretched into a straight line or rolled into a meandering shape along the preset direction.

3. The electrically conductive connection device of claim 2, wherein, The magnetic conductive head (200) comprises a positive head (210), a negative head (220) and an insulating separator (230), the positive wire (110) is connected to the positive head (210), the negative wire (120) is connected to the negative head (220), and the insulating separator (230) electrically separates the positive head (210) and the negative head (220). The insulating separator (230) is arranged outside the positive head (210), and the negative head (220) is arranged outside the insulating separator (230). Alternatively, the insulating separator (230) is arranged outside the negative head (220), and the positive head (210) is arranged outside the insulating separator (230).

4. The electrically conductive connection device of claim 3, wherein, When the insulating separator (230) is arranged outside the positive head (210) and the negative head (220) is arranged outside the insulating separator (230), one end of the positive head (210) penetrates the insulating separator (230), and the other end is stopped on the side of the insulating separator (230) away from the wire harness assembly (100), one end of the insulating separator (230) penetrates the negative head (220), and the other end is stopped on the side of the negative head (220) away from the wire harness assembly (100). When the insulating separator (230) is sleeved on the outer circumferential side of the negative electrode head (220), and the positive electrode head (210) is sleeved on the outer circumferential side of the insulating separator (230), one end of the negative electrode head (220) is inserted into the insulating separator (230), and the other end is stopped on the side of the insulating separator (230) away from the wire harness assembly (100), one end of the insulating separator (230) is inserted into the positive electrode head (210), and the other end is stopped on the side of the positive electrode head (210) away from the wire harness assembly (100).

5. The electrically conductive connecting device according to claim 3, characterized in that Further comprising a storage cover (400) which covers and is connected to one end of the magnetic conductive head (200) close to the wire harness assembly (100) for storing the positive electrode wire (110) and the negative electrode wire (120).

6. The electrically conductive connecting device according to claim 1, characterized in that Further comprising a support column (500) and a guide sleeve portion (600), the guide sleeve portion (600) is installed on the backrest, one end of the wire harness assembly (100) is inserted into the support column (500) and connected to the magnetic conductive head (200), and the support column (500) can drive the wire harness assembly (100) and the magnetic conductive head (200) to be movably inserted into the guide sleeve portion (600).

7. The electrically conductive connection device of claim 6, wherein, The wire harness assembly (100) comprises a straight connection section (140) and a spiral extension section (150), the support column (500) is provided with an accommodating cavity (510) with an opening, the opening of the accommodating cavity (510) faces the magnetic conductive head (200), the spiral extension section (150) is arranged in the accommodating cavity (510), one end of the straight connection section (140) is connected to the spiral extension section (150), and the other end is inserted into the opening of the accommodating cavity (510) and connected to the magnetic conductive head (200).

8. The electrically conductive connecting device according to claim 1, characterized in that The magnetic conductive seat (300) is provided with an assembly groove (310) extending along a predetermined direction, and when the magnetic conductive head (200) and the magnetic conductive seat (300) are in conduction, the magnetic conductive head (200) can be inserted into the assembly groove (310).

9. The electrically conductive connecting device according to claim 8, characterized in that The magnetic conductive head (200) is conical, and along the direction from the wire harness assembly (100) to the magnetic conductive head (200), the outer diameter of the magnetic conductive head (200) has a decreasing trend, the assembly groove (310) is conical, and along the direction from the wire harness assembly (100) to the magnetic conductive head (200), the inner diameter of the assembly groove (310) has a decreasing trend.

10. A vehicle seat characterized by comprising: The headrest, the backrest and the conductive connection device as claimed in any one of claims 1-9 are included, the headrest is installed on the backrest, the wire harness assembly (100) is electrically connected to the loudspeaker in the headrest, and the magnetic conductive seat (300) is arranged on the backrest.

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