Electric headrest structure

Abstract

The present invention discloses an electric headrest structure, including a core frame, a plurality of headrest plug rods are arranged at the lower end of the core frame, a motor is arranged at the central groove of the core frame, a motor screw is arranged at the output end of the motor, a screw slider is rotatably arranged on the motor screw, and the screw slider is located above the core frame; two ends of the core frame are symmetrically provided with slide grooves matched with the screw slider; the front and rear sides of the core frame are respectively provided with a headrest front plastic shell and a headrest rear plastic shell, and the headrest front plastic shell and the screw slider are connected together by a connecting rod. The electric headrest structure of the present invention is simple in structure, occupies a small space, and when the headrest collides, the force is redirected and can withstand greater force.

Description

Technical Field

[0001] The present invention relates to the technical field of electric headrests, and in particular to an electric headrest structure. Background Art

[0002] With the development of the electrification trend in the automotive industry, traditional mechanical operations have been changed to electric ones, and headrests are no exception. Due to the small size of headrests, traditional motors take up a lot of space after being placed in the headrests. The headrests appear very thick and bulky, which does not conform to the trend of modern car seats being thin and light. There are many electric headrests on the market, and some of them have motors in the backrests to achieve electric adjustment up and down. There are few headrests on the market with motors moving back and forth in the headrests, and the structure is complicated. The present invention is a headrest that can be moved back and forth electrically, which has a simple structure and high strength. It can save the space of the headrest to the greatest extent and make the headrest thin and light. Summary of the invention

[0003] The purpose of the present invention is to provide an electric headrest structure to solve the problem that the headrest is thick and heavy and has a complicated structure.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention discloses an electric headrest structure, comprising a core frame, wherein a plurality of headrest plug rods are arranged at the lower end of the core frame, a motor is arranged at the central groove of the core frame, a motor lead screw is arranged at the output end of the motor, a lead screw slider is rotatably arranged on the motor lead screw, and the lead screw slider is located above the core frame; sliding grooves matching the lead screw slider are symmetrically arranged at both ends of the core frame; a front plastic shell of the headrest and a rear plastic shell of the headrest are respectively arranged on the front and rear sides of the core frame, and the front plastic shell of the headrest and the lead screw slider are connected together by a connecting rod.

[0006] Preferably, the screw slider and the connecting rod are connected together by a metal pin.

[0007] Preferably, the front plastic shell of the headrest and the connecting rod are connected together by a metal pin.

[0008] Preferably, the front plastic shell of the headrest and the rear plastic shell of the headrest are connected together by screws or buckles.

[0009] Preferably, the specific number of the headrest insertion rods is two, which are connected to the core frame by screws or buckles.

[0010] Preferably, a plurality of guide limit grooves for guiding the movement of the core frame and preventing the core frame from shaking are arranged on the front plastic shell of the headrest and the rear plastic shell of the headrest.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are:

[0012] The electric headrest structure of the invention prevents the motor lead screw from moving vertically, and utilizes a connecting rod mechanism to make the lead screw slider move vertically on the motor lead screw. Driven by the connecting rod and limited by the guide limit groove, it is converted into horizontal movement of the headrest. The motor lead screw is placed vertically in the headrest, and its maximum core component thickness is only the thickness of the motor, making the headrest thinner and lighter. In addition, the advantage of vertical conversion to horizontal is that when subjected to horizontal impact force, the force can be converted through the connecting rod to convert the horizontal force into vertical force, thereby increasing the safety of the headrest. In short, the electric headrest structure of the invention is simple in structure and occupies little space. When the headrest collides, the force is redirected and can withstand greater forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be preferably described below in conjunction with the accompanying drawings.

[0014] Figure 1 This is an exploded view of the electric headrest structure of the present invention;

[0015] Figure 2 It is a partial structural schematic diagram of the electric headrest structure of the present invention;

[0016] Figure 3 The operating principle of the electric headrest structure of the present invention Figure 1 ;

[0017] Figure 4 The operating principle of the electric headrest structure of the present invention Figure 2 ;

[0018] Figure 5 It is a side schematic diagram of the electric headrest structure of the present invention;

[0019] Explanation of the accompanying drawings: 1. headrest plug rod; 2. core frame; 3. plastic shell behind the headrest; 4. screw slider; 5. motor screw; 6. metal pin; 7. connecting rod; 8. plastic shell in front of the headrest; 9. motor; 10. guide limit groove. DETAILED DESCRIPTION

[0020] like Figure 1-5 As shown, an electric headrest structure includes a core frame 2, and a plurality of headrest plug rods 1 are installed at the lower end of the core frame 2. The specific number of the headrest plug rods 1 is two, which are connected to the core frame 2 by screws or buckles.

[0021] A motor 9 is installed in the central groove of the core skeleton 2, and a motor screw 5 is installed at the output end of the motor 9. The output shaft of the motor 9 is connected to the turbine transmission, and the turbine and the motor screw 5 are matched in transmission, so as to realize the horizontal placement of the motor 9 (this structure is the existing technology and will not be repeated here).

[0022] The motor screw 5 is rotatably mounted with a screw slider 4, and the screw slider 4 is located above the core frame 2. When the motor screw 5 rotates, the screw slider 4 moves up and down according to the screw principle. Slide grooves that match the screw slider 4 are symmetrically mounted at both ends of the core frame 2.

[0023] The front and rear sides of the core frame 2 are respectively installed with a headrest front plastic shell 8 and a headrest rear plastic shell 3, and the headrest front plastic shell 8 and the screw slider 4 are connected together by a connecting rod 7. The screw slider 4 and the connecting rod 7 are connected together by a metal pin 6. The headrest front plastic shell 8 and the connecting rod 7 are connected together by a metal pin 6. The headrest front plastic shell 8 and the headrest rear plastic shell 3 are connected together by screws or buckles.

[0024] The front plastic shell 8 of the headrest and the rear plastic shell 3 of the headrest are provided with a plurality of guide limit grooves 10 for guiding the movement of the core frame 2 and preventing it from shaking, so as to restrict the front plastic shell 8 of the headrest and the rear plastic shell 3 of the headrest from jumping in other directions and only moving horizontally.

[0025] The action process of the present invention is as follows:

[0026] First, start the motor 9, the motor lead screw 5 rotates, driving the lead screw slider 4 to move up and down on the core frame 2; then, the connecting rod 7 connected to the lead screw slider 4 through the metal pin 6 drives the front plastic shell 8 and the rear plastic shell 3 of the headrest to move left and right under the limiting effect of the guide limit groove 10, completing the electric horizontal movement process of the headrest.

[0027] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An electric headrest structure, characterized in that: The invention comprises a core frame (2), wherein a plurality of headrest plug rods (1) are arranged at the lower end of the core frame (2), a motor (9) is arranged at the central groove of the core frame (2), a motor screw (5) is arranged at the output end of the motor (9), and a screw slider (4) is rotatably arranged on the motor screw (5), and the screw slider (4) is located above the core frame (2); sliding grooves matching the screw slider (4) are symmetrically arranged at both ends of the core frame (2); a headrest front plastic shell (8) and a headrest rear plastic shell (3) are respectively arranged at the front and rear sides of the core frame (2), and the headrest front plastic shell (8) and the screw slider (4) are connected together by a connecting rod (7); The screw slider (4) and the connecting rod (7) are connected together via a metal pin (6); The headrest front plastic shell (8) and the connecting rod (7) are connected together via a metal pin (6); The headrest front plastic shell (8) and the headrest rear plastic shell (3) are provided with a plurality of guide limit grooves (10) for guiding the movement of the core frame (2) and preventing the core frame (2) from shaking.

2. The electric headrest structure according to claim 1, characterized in that: The headrest front plastic shell (8) and the headrest rear plastic shell (3) are connected together via screws or buckles.

3. The electric headrest structure according to claim 1, characterized in that: The specific number of the headrest insertion rods (1) is two, which are connected to the core frame (2) through screws or buckles.

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