Connecting structure, headrest module and seat

Abstract

The utility model provides a connecting structure, a headrest module and a seat, and the connecting structure comprises a headrest guide sleeve used for being arranged on a seat body and providing a containing space; the headrest rod is contained in the containing space of the headrest guide sleeve and can move in the extending direction of the headrest guide sleeve; the magnetic attraction connector assembly comprises a male connector and a female connector, one of the male connector and the female connector is used for being connected with a headrest guide sleeve, the other one of the male connector and the female connector is used for being connected with the headrest rod, the male connector and the female connector can be detachably connected in a magnetic attraction mode, one of the male connector and the female connector is connected with a seat wire harness, and the other one of the male connector and the female connector is connected with a headrest wire harness; the movable end of the elastic piece is fixedly connected to the connector, connected with the headrest guide sleeve, of the male connector or the female connector, and the fixed end of the elastic piece is fixedly connected to the tail end of the headrest guide sleeve.

Description

Technical Field

[0001] The utility model relates to a connection structure, a headrest module and a seat. Background Art

[0002] A seat, such as a car seat, generally includes a seat body and a seat headrest located on the upper portion of the backrest of the seat body to provide head and neck support for passengers and / or drivers, thereby improving user experience.

[0003] In order to enhance the user experience, in some solutions, electrical appliances will be installed in the headrest to achieve functions such as lighting effects, heating, massage, ventilation, and aromatherapy.

[0004] The inventors have found that in the existing solutions, the wiring harness of the electrical appliances connected to the headrest generally extends directly to the seat body, making the electrical maintenance of the headrest module inconvenient. If an electrical failure occurs, it is difficult to replace the wiring harness of the headrest.

[0005] In order to solve the above problems, in one solution, for example, the utility model patent application with Chinese patent application number 202322665948.6 and name “Connection structure, headrest module and seat” records a connection structure, a headrest module and a seat, so that the wiring harness of the headrest’s electrical appliances is easy to check and replace, and the entire headrest module can also be replaced to meet the user’s personalized needs for different headrest functions.

[0006] However, the connection structure, headrest module and seat using the above solution have more integrated functions to meet the needs of the market. Utility Model Content

[0007] The purpose of the present application is to provide a connection structure for a seat headrest.

[0008] The purpose of the present application is to provide a headrest module.

[0009] The purpose of this application is to provide a seat.

[0010] In the first aspect, the present application provides a connection structure for a seat headrest, comprising: a headrest guide sleeve for being arranged on a seat body, the headrest guide sleeve providing a receiving space; a headrest rod, which is accommodated inside the receiving space of the headrest guide sleeve and can move along the extension direction of the headrest guide sleeve; a magnetic connector assembly, comprising a male connector and a female connector, one of the male connector and the female connector is used to connect to the headrest guide sleeve, and the other is used to connect to the headrest rod, the male connector and the female connector can be detachably connected by magnetic attraction, and one of the male connector and the female connector is connected to a seat wiring harness, and the other is connected to a headrest wiring harness; an elastic member, the movable end of the elastic member is fixedly connected to the joint between the male connector and the female connector that is connected to the headrest guide sleeve, and the fixed end of the elastic member is fixedly connected to the end of the headrest guide sleeve.

[0011] The technical solution of the connection structure introduced above, by arranging an elastic part between the magnetic connector assembly and the tail end of the headrest guide sleeve in the headrest guide sleeve, makes it possible to improve the convenience of disassembly and assembly of the wiring harness, thereby facilitating electrical inspection, maintenance and replacement of the entire headrest module, while achieving the functions of adjusting the headrest height and avoiding damage to the connection structure due to the operator's misuse of force, thereby meeting market needs.

[0012] In one or more embodiments of the connection structure, the headrest rod has a hollow structure, and the headrest wire harness is located inside the hollow structure of the headrest rod; and the seat wire harness is arranged through the elastic member.

[0013] In one or more embodiments of the connecting structure, a limiting member is also provided at the end of the headrest guide sleeve, and the limiting member provides a stopping limit for the elastic member and / or the male connector or female connector connected to the movable end of the elastic member at the end of the accommodating space provided by the headrest guide sleeve.

[0014] In one or more embodiments of the connecting structure, the outer wall of the headrest rod has a corrugated structure distributed along the length direction, and the headrest guide sleeve is clamped with the trough of the corrugated structure by a spring piece, so that the headrest guide sleeve and the headrest are positioned.

[0015] In one or more embodiments of the connecting structure, the female connector and the headrest guide sleeve are fixed to the seat body as fixing parts of the connecting structure for the seat headrest, the male connector and the female connector can be detachably connected by magnetic attraction, and the male connector and the headrest rod are movable parts of the connecting structure.

[0016] In one or more embodiments of the connection structure, one of the male connector and the female connector of the magnetic connector assembly for connecting to the seat body is elastically connected to the inner wall of the headrest guide sleeve; the male connector and the female connector form a snap connection.

[0017] In the second aspect, the present application provides a headrest module, including a headrest body, which is provided with an electrical appliance; a headrest rod, used to set the headrest module on a seat body, the headrest rod has a hollow structure, and the headrest wiring harness connected to the electrical appliance is located inside the hollow structure of the headrest rod; a magnetic connector joint, which is one of a male connector or a female connector, and the connector joint is provided on the headrest rod and connected to the headrest wiring harness, and the connector joint can be detachably matched and connected with the other of the male connector or the female connector provided inside the headrest guide sleeve through magnetic attraction; and the other of the male connector or the female connector provided inside the headrest guide sleeve is connected to the seat body through an elastic member, so that the position of the matching connection structure formed by the male connector and the female connector is adjustable relative to the seat body.

[0018] The technical solution of the headrest module introduced above can improve the convenience of disassembly and assembly of the wiring harness, thereby facilitating electrical inspection, maintenance and replacement of the entire headrest module, while also realizing the function of adjusting the headrest height and avoiding damage to the connection structure caused by the operator's misuse of force, thus meeting market needs.

[0019] In one or more embodiments of the headrest module, the magnetic connector joint is a male joint.

[0020] In the third aspect, the present application provides a seat, comprising a seat body and a headrest module as described in the second aspect, which are connected through the connection structure as described in the first aspect, the headrest guide sleeve is arranged on the seat body, one of the male connector and the female connector is connected to the seat body, and the other is used to connect to the headrest rod, the male connector and the female connector can be detachably connected by magnetic attraction, and one of the male connector and the female connector is connected to a seat wiring harness located on the seat body, and is connected to the seat body through the elastic member, and the other is connected to the headrest wiring harness.

[0021] The technical solution of the seat introduced above can facilitate the electrical inspection and maintenance of the headrest's electrical appliances and the disassembly, assembly and replacement of the headrest module, while also achieving the functions of adjusting the headrest height and avoiding damage to the connection structure due to the operator's misuse of force, thus meeting market needs.

[0022] In one or more embodiments of the seat, the seat includes a first structure or a second structure, in which, in the first structure, the male connector is magnetically connected to the female connector, and the relative position of the headrest rod and the headrest guide sleeve is positioned at a first height; in the second structure, the male connector is magnetically connected to the female connector, and the relative position of the headrest rod and the headrest guide sleeve is positioned at a second height.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] Figure 1 It is a schematic diagram of the decomposed structure of the connection structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic block diagram of the assembly of a connection structure of an embodiment of the present application.

[0027] Figure 3 This is a schematic diagram of the structure of a seat according to an embodiment of the present application.

[0028] Figure 4 Schematic diagram of the structure of a headrest module according to an embodiment of the present application.

[0029] FIG. 5A to FIG. 5C This is a schematic structural diagram of the cooperation between the headrest guide sleeve and the headrest rod according to an embodiment of the present application.

[0030] Reference numerals:

[0031] 10-Connection structure

[0032] 20-Headrest module

[0033] 201-Headrest body

[0034] 30-Seat body

[0035] 100-seats

[0036] 1-Headrest guide sleeve

[0037] 11- Accommodation space

[0038] 12-Shrapnel

[0039] 101-First Height

[0040] 102-Second Height

[0041] 2-Headrest rod

[0042] 21-Hollow structure

[0043] 22-Corrugated structure

[0044] 3-Magnetic connector

[0045] 31-Male connector

[0046] 32-Female connector

[0047] 4-Elastic parts

[0048] 41-Seat wiring harness

[0049] 42-Headrest wiring harness

[0050] 5- Restrictions. DETAILED DESCRIPTION

[0051] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0053] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0054] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0057] A seat, such as a car seat, generally includes a seat body and a seat headrest located on the upper portion of the backrest of the seat body to provide head and neck support for passengers and / or drivers, thereby improving user experience.

[0058] The embodiments of the present application disclose a connection structure, a headrest module and a seat. Although a car seat is taken as an example, it is not limited to this and can also be used for other seats with a headrest rod and a seat headrest.

[0059] According to some embodiments of the present application, reference Figure 4 As shown, the seat 100 includes a seat body 30 and a headrest module 20 , which are connected via a connection structure 10 .

[0060] like Figure 1 as well as Figure 2 As shown, in some embodiments, the connection structure 10 includes a headrest guide sleeve 1, a headrest rod 2, a magnetic connector assembly 3, and an elastic member 4.

[0061] The headrest guide sleeve 1 is used to be arranged on the seat body 30 , and the headrest guide sleeve 1 provides a receiving space 11 .

[0062] The headrest rod 2 is accommodated in the accommodating space 11 of the headrest guide sleeve 1 and can be guided to move along the extending direction of the headrest guide sleeve 1. That is, the headrest guide sleeve 1 here can play a role of limiting and guiding the movement of the headrest rod 2.

[0063] The magnetic connector assembly 3 includes a male connector 31 and a female connector 32. One of the male connector 31 and the female connector 32 is used to connect to the headrest guide sleeve 1, and the other is used to connect to the headrest rod 2. The male connector 31 and the female connector 32 can be detachably connected by magnetic attraction, and one of the male connector 31 and the female connector 32 is connected to the seat wiring harness 41, and the other is connected to the headrest wiring harness 42.

[0064] The meanings of the male connector and the female connector here are similar to those of the male connector and the female connector of the connector in the electrical field, that is, the male connector 31 is a connector with a pin, and the female connector 32 is a connector with a hole. The male connector 31 is fixedly connected to the headrest rod 2 as a movable part, and the female connector 32 is fixed to the seat body 30 with the headrest guide sleeve 1 as a fixed part, which is more convenient for installation and disassembly operations. The principle is that during assembly, the headrest guide sleeve 1 is generally fixed to the seat body 30, and then the headrest rod 2 is directly inserted into the headrest guide sleeve 1 until the magnetic connector located on the headrest rod is connected to the magnetic connector located on the seat body 30. The operator can generally feel the magnetic effect and hear the sound of magnetic collision, that is, the connection is completed, and the male connector is easier to install. Preferably, the male connector 31 and the female connector 32 form a snap-fit ​​connection, so that the matching structure is simple and easy to disassemble and assemble.

[0065] The elastic member 4, the movable end of the elastic member 4 is fixedly connected to the joint connected to the headrest guide sleeve 1, such as the male joint 31 or the female joint 32. Figure 2 In the female connector 32 shown, the fixed end of the elastic member 4 is fixedly connected to the end of the headrest guide sleeve 1 .

[0066] The structure of the elastic member 4 can be, for example Figure 1 as well as Figure 2 The spring structure shown is not limited to this.

[0067] Preferably, it can be Figure 1 , Figure 2 As shown, the female connector 32 is fixed inside the headrest guide sleeve 1, and the headrest guide sleeve 1 is fixed to the seat body 30, as a fixing member of the connection structure 10 for the seat headrest, the male connector 31 and the female connector 32 can be detachably connected by magnetic attraction, and the male connector 31 and the headrest rod 2 are movable members of the connection structure 10. The movable end of the elastic member 4 is connected to the female connector 32, and the fixed end is fixedly connected to the end of the headrest guide sleeve 1.

[0068] Preferably, if Figure 1 as well as Figure 2As shown, a limiting member 5 is also provided at the end of the headrest guide sleeve 1. The limiting member 5 provides a stop limit for the elastic member 4 and / or the male connector 31 or the female connector 32 connected to the movable end of the elastic member 4 at the end of the accommodating space 11 provided by the headrest guide sleeve 1, so as to avoid excessive compression of the elastic member 4 resulting in damage to the elastic member, and damage caused by the female connector 32 connected to the movable end of the elastic member being separated from the headrest guide sleeve 1.

[0069] The beneficial effect of adopting the connection structure 10 introduced above is that, by arranging an elastic member between the magnetic connector assembly and the tail end of the headrest guide sleeve in the headrest guide sleeve, the scheme adopting this connection structure can not only improve the convenience of disassembling and assembling the wiring harness, thereby facilitating electrical inspection, maintenance and replacement of the entire headrest module, but also realize the function of adjusting the headrest height and avoiding damage to the connection structure caused by the operator's misuse of force, thereby meeting market needs.

[0070] Specifically, the structure for achieving height adjustment can be, FIG. 5A to FIG. 5C As shown, the outer wall of the headrest rod 2 has a corrugated structure 22 distributed along the length direction, and the headrest guide sleeve 1 is clamped with the trough of the corrugated structure 22 by the spring 12, so that the headrest guide sleeve 1 and the headrest rod 2 are positioned. It can be understood that the seat 100 includes a first structure or a second structure. In the first structure, the male connector 31 and the female connector 32 are magnetically connected, and the relative position of the headrest rod 2 and the headrest guide sleeve 1 is positioned at a first height 101; in the second structure, the male connector 31 and the female connector 32 are magnetically connected, and the relative position of the headrest rod 2 and the headrest guide sleeve 1 is positioned at a second height 102. Through the setting of the elastic member 4, the female connector 32 is movable, so that the magnetic structure formed by the male connector 31 and the female connector 32 can change with the relative height position of the headrest guide sleeve 1 and the headrest rod 2, realizing the convenience of disassembling and assembling the wiring harness, thereby facilitating electrical inspection, maintenance and replacement of the entire headrest module, while realizing the function of adjusting the height of the headrest.

[0071] At the same time, the provision of the elastic member 4 not only improves the convenience of disassembling and assembling the wiring harness, thereby facilitating electrical inspection, maintenance, and replacement of the entire headrest module, but also realizes the function of preventing the operator from causing damage to the connection structure due to misuse of force. Specifically, when the operator presses the headrest rod 2 into the headrest guide sleeve 1 to assemble the headrest and the seat body, for example, the operating force can be set to 500N, but sometimes it is difficult to avoid the operator continuing to apply a downward pressure after the male connector 31 and the female connector 32 are magnetically connected. The provision of the elastic member 4 provides a buffer for the downward pressure of the operator, avoiding the problem that the matching connection between the male connector 31 and the female connector 32 may be damaged due to the misuse of the operating force of the operator. Preferably, the elastic stroke of the elastic member 4 is at least greater than the set installation clearance of the magnetic connector assembly 3. For example, the minimum distance between the magnetic connector component 3 and the seat body 30, that is, the installation gap is set to 20 mm, then the elastic stroke of the elastic member 4, that is, the natural length of the elastic member 4 to the limit stroke of compression or stretching is at least 20 mm. For example, for the elastic member 4 with a natural length of 40 mm, its length needs to be at least 80 mm. At the same time, this length can generally meet the height adjustment requirements, thereby further ensuring that the connection structure can simultaneously realize the headrest height adjustment and avoid the operator's misuse of force to cause damage to the connection structure.

[0072] refer to Figure 1 As shown, the headrest rod 2 has a hollow structure 21, and the headrest harness 42 is located inside the hollow structure 21 of the headrest rod 2, so that it is easy to route the headrest harness 42 and protect the harness. The seat harness 41 can be set through the elastic member 4, so that the seat harness 41 can be constrained by the elastic member 4, which is convenient for routing and setting the seat harness 41 and also saves space.

[0073] The headrest wiring harness and seat wiring harness here, as the name suggests, are the wiring harness located in the headrest and the wiring harness located in the seat body. The headrest wiring harness is generally connected to electrical appliances, while the seat wiring harness can be connected to a power source. The headrest wiring harness 42 is connected to the seat wiring harness 41 through a magnetic connector assembly 3, which can supply power to the electrical appliances and transmit control signals to the electrical appliances of the headrest.

[0074] Preferably, reference Figure 2 As shown, in some embodiments, the headrest rod 2 and the magnetic connector assembly 3 are both located within the range of the accommodation space defined by the headrest guide sleeve 1. This can make the structure compact and easy to disassemble and assemble. From the perspective of the operator, during operation, it is only necessary to disassemble the headrest rod 2 into the opening of the headrest guide sleeve 1 to enter the accommodation space 11, and there will be no interference from other components within the visual range.

[0075] In addition, in some embodiments, the inventors found that due to errors, one of the male connector 31 and the female connector 32 of the magnetic connector assembly 3 for connecting to the seat body 30 is elastically matched with the inner wall of the headrest guide sleeve 1. As shown in the figure, the female connector 32 is elastically matched with the inner wall of the headrest guide sleeve 1. For example, the material of the female connector or the headrest guide sleeve 1 can be a certain flexible material, so that the matching connection structure between the two can allow a certain deformation amount, thereby avoiding the influence of the error factor on the matching connection between the two, so that the connection structure can be easier to disassemble and assemble.

[0076] As described above, the headrest module 20 can be replaced in the seat as a separate integral module, or sold as a separate accessory as a replaceable part to meet the user's personalized needs for different headrest functions.

[0077] Combination Figures 1 to 3 As shown, the headrest module 20 may include a headrest body 201, a headrest rod and a connector of a magnetic suction connector. The headrest body 201 is provided with an electrical appliance. The headrest rod 2 is used to set the headrest module 20 on the seat body 30. The headrest rod 2 has a hollow structure 21. The headrest harness 42 connected to the electrical appliance is located inside the hollow structure 21 of the headrest rod 2; the magnetic suction connector connector is one of the male connector 31 or the female connector 32. The connector connector is provided on the headrest rod 2 and connected to the headrest harness 42. The connector connector can be detachably matched and connected with the other of the male connector 31 or the female connector 32 provided on the seat body 30 through magnetic attraction, and the other of the male connector 31 or the female connector 32 provided inside the headrest guide sleeve 1 is connected to the seat body 30 through the elastic member 4, so that the position of the matching connection structure formed by the male connector 31 and the female connector 32 is adjustable relative to the seat body 30. Similar to the above, the headrest module 20 is taken as an example in which the headrest module 20 has a male connector 31 for matching and connecting with a female connector 32 connected with the elastic member 4 .

[0078] As described above, the seat 100 adopts the connection structure 10 and the headrest module 20 described in the above embodiment, the headrest guide sleeve 1 is arranged on the seat body 30, one of the male connector 31 and the female connector 32 is connected to the seat body 30, and the other is used to connect to the headrest rod 2, the male connector 31 and the female connector 32 can be detachably connected by magnetic attraction, and one of the male connector 31 and the female connector 32 is connected to the seat harness 41 located on the seat body 30, and the other is connected to the headrest harness 42, and is connected to the seat body 30 through the elastic member 4, and the other is connected to the headrest harness 42. Figure 5CAs shown, the seat 100 includes a first structure or a second structure. In the first structure, the male connector 31 is magnetically connected to the female connector 32, and the relative position of the headrest rod 2 and the headrest guide sleeve 1 is positioned at a first height 101; in the second structure, the male connector 31 is magnetically connected to the female connector 32, and the relative position of the headrest rod 2 and the headrest guide sleeve 1 is positioned at a second height 102.

[0079] In summary, the beneficial effects of the connection structure, headrest module and seat introduced in the above embodiments include but are not limited to: by arranging an elastic part between the magnetic connector assembly and the tail end of the headrest guide sleeve in the headrest guide sleeve, the scheme adopting this connection structure can improve the convenience of disassembly and assembly of the wiring harness, thereby facilitating electrical inspection, maintenance and replacement of the entire headrest module, while realizing the functions of adjusting the headrest height and avoiding damage to the connection structure due to the operator's misuse of force, thereby meeting market needs.

[0080] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A connection structure (10) for a seat headrest, characterized in that: include: A headrest guide sleeve (1) is used for being arranged on a seat body (30), wherein the headrest guide sleeve (1) provides a receiving space (11); A headrest rod (2) is accommodated in the accommodating space (11) of the headrest guide sleeve (1) and is movable along the extension direction of the headrest guide sleeve (1); A magnetic connector assembly (3) comprises a male connector (31) and a female connector (32), wherein one of the male connector (31) and the female connector (32) is used to connect to a headrest guide sleeve (1), and the other is used to connect to the headrest rod (2), and the male connector (31) and the female connector (32) can be detachably connected by magnetic attraction, and one of the male connector (31) and the female connector (32) is connected to a seat wiring harness (41), and the other is connected to a headrest wiring harness (42); An elastic member (4), wherein the movable end of the elastic member (4) is fixedly connected to a joint of the male joint (31) or the female joint (32) connected to the headrest guide sleeve (1), and the fixed end of the elastic member (4) is fixedly connected to the end of the headrest guide sleeve (1).

2. The connection structure (10) according to claim 1, characterized in that: The headrest rod (2) has a hollow structure (21), and the headrest wire harness (42) is located inside the hollow structure (21) of the headrest rod (2); the seat wire harness (41) is arranged through the elastic member (4).

3. The connection structure (10) according to claim 1, characterized in that: A limiting member (5) is also provided at the end of the headrest guide sleeve (1), and the limiting member (5) provides a stop limit for the elastic member (4) and / or a male connector (31) or a female connector (32) connected to the movable end of the elastic member (4) at the end of the accommodating space (11) provided by the headrest guide sleeve (1).

4. The connection structure (10) according to claim 1, characterized in that: The elastic stroke of the elastic member (4) is at least greater than the set installation gap of the magnetic attraction connector assembly (3).

5. The connection structure (10) according to claim 1, characterized in that: The outer wall of the headrest rod (2) has a corrugated structure (22) distributed along the length direction, and the headrest guide sleeve (1) is clamped with the trough of the corrugated structure (22) through a spring sheet (12), so that the headrest guide sleeve (1) and the headrest rod (2) are positioned.

6. The connection structure (10) according to claim 1, characterized in that: The female connector (32) and the headrest guide sleeve (1) are fixed to the seat body (30) as fixing parts of the connection structure (10) for the seat headrest; the male connector (31) and the female connector (32) can be detachably connected by magnetic attraction; the male connector (31) and the headrest rod (2) are movable parts of the connection structure (10).

7. The connection structure (10) according to claim 1, characterized in that: One of the male connector (31) and the female connector (32) of the magnetic connector assembly (3) for connecting to the seat body (30) is elastically connected to the inner wall of the headrest guide sleeve (1); the male connector (31) and the female connector (32) form a snap-on connection.

8. A headrest module (20), characterized in that: include: A headrest body (201), wherein the headrest body (201) is provided with an electrical appliance; A headrest rod (2) for arranging the headrest module (20) on a seat body (30), the headrest rod (2) having a hollow structure (21), and a headrest harness (42) connected to the electrical appliance being located inside the hollow structure (21) of the headrest rod (2); A magnetic connector joint, which is one of a male connector (31) or a female connector (32), the connector joint is arranged on the headrest rod (2) and is connected to the headrest wiring harness (42), and the connector joint can be detachably matched and connected with the other of the male connector (31) or the female connector (32) arranged inside the headrest guide sleeve (1) through magnetic attraction; Furthermore, the other of the male connector (31) or the female connector (32) arranged inside the headrest guide sleeve (1) is connected to the seat body (30) via an elastic member (4), so that the position of the matching connection structure formed by the male connector (31) and the female connector (32) is adjustable relative to the seat body (30).

9. A seat (100), characterized in that: It comprises a seat body (30) and a headrest module (20) as claimed in claim 8, which are connected via a connecting structure (10) as claimed in any one of claims 1 to 7, wherein the headrest guide sleeve (1) is arranged on the seat body (30), one of the male connector (31) and the female connector (32) is connected to the seat body (30), and the other is used to connect to the headrest rod (2), the male connector (31) and the female connector (32) can be detachably connected by magnetic attraction, and one of the male connector (31) and the female connector (32) is connected to a seat harness (41) located on the seat body (30), and is connected to the seat body (30) via the elastic member (4), and the other is connected to a headrest harness (42).

10. The seat (100) according to claim 9, characterized in that: The seat (100) comprises a first structure or a second structure. In the first structure, the male connector (31) is magnetically connected to the female connector (32), and the relative position of the headrest rod (2) and the headrest guide sleeve (1) is positioned at a first height (101); in the second structure, the male connector (31) is magnetically connected to the female connector (32), and the relative position of the headrest rod (2) and the headrest guide sleeve (1) is positioned at a second height (102).

Images