Headrest with electric stimulation function and car seat

Abstract

The utility model relates to the technical field of automobile headrest, disclose a headrest and car seat with electric stimulation function, this headrest with electric stimulation function, include: headrest main part, left and right sides are provided with left side wing and right side wing respectively, and can rotate respectively relative to headrest main part, first electric stimulation contact and second electric stimulation contact are arranged on left side wing and right side wing respectively, can through rotating left side wing and right side wing, make first electric stimulation contact and second electric stimulation contact stick to the behind ear papilla position of passenger, control module, with first electric stimulation contact and second electric stimulation contact electric connection or communication connection, control module can control first electric stimulation contact and second electric stimulation contact through the stimulation current of preset size, form electric stimulation to the behind ear papilla position of passenger, and stimulation current is less than the human body safe current value. The utility model has the advantages of this headrest with electric stimulation function can effectively slow down and prevent car sickness, and the effect is obvious, and the installation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive headrest technology, and in particular to a headrest and automotive seat with electrical stimulation function. Background Technology

[0002] As the market share of trams gradually increases, motion sickness is becoming more prevalent because many people have not yet adapted to the direct torque and motion characteristics of trams. When passengers sit in a car seat, their bodies need to constantly adjust their posture to maintain balance. When the tolerance for the intensity and duration of this adjustment reaches a limit, motion sickness symptoms will occur.

[0003] Car manufacturers have begun employing various methods to alleviate motion sickness, such as developing motion sickness glasses, placing car seats on shock-absorbing platforms, and maintaining passenger stability by inflating and deflating the backrests and side bolsters of the seats. However, these methods have not been very effective in relieving motion sickness. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a headrest and car seat with electrical stimulation function that has a simple structure and good effect in preventing and relieving motion sickness.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a headrest with electrical stimulation function, which is applied to a car seat, comprising:

[0006] The headrest body has a left wing and a right wing respectively on its left and right sides, and the left wing and the right wing can rotate relative to the headrest body.

[0007] A first electrical stimulation contact and a second electrical stimulation contact are provided, with the first electrical stimulation contact located on the left wing and the second electrical stimulation contact located on the right wing; the first and second electrical stimulation contacts can be brought into contact with the mastoid process behind the passenger's ear by rotating the left and right wings.

[0008] The control module is electrically or communicatively connected to the first and second electrical stimulation contacts. The control module can control the first and second electrical stimulation contacts to generate electrical stimulation on the mastoid process behind the passenger's ear by passing a preset stimulation current. The stimulation current is less than the safe current value for the human body.

[0009] Furthermore, the stimulation current is less than or equal to 3.5 mA.

[0010] Furthermore, the stimulation current is configured as a 1 kHz sinusoidal current of less than or equal to 3.5 mA.

[0011] Furthermore, both the left and right wings are provided with wing covers, and the first and second electrical stimulation contacts are respectively disposed on the wing covers of the left and right wings.

[0012] Furthermore, both the first and second electrical stimulation contacts include a mounting base and a cover, wherein the cover is disposed on the mounting base and is in communication with the mounting base.

[0013] Furthermore, the side wing sleeve has an opening, the mounting base extends from the inside of the side wing sleeve into the opening, and the cover is snapped onto the mounting base from the outside of the side wing sleeve.

[0014] Furthermore, the mounting base includes a boss and a retaining edge disposed around the boss, the retaining edge being located inside the side wing sleeve, and the boss passing through the opening from the inside to the outside; the cover is snapped onto the boss.

[0015] A spring plate extends outward from the protrusion and abuts against the inner wall of the cover.

[0016] Furthermore, when the cover is engaged with the protrusion, the inner wall of the cover presses against the spring piece, causing the spring piece to undergo elastic deformation, and the spring piece is tightly attached to the inner wall of the cover.

[0017] Furthermore, both the mounting base and the cover are metal parts, and both can be formed by stamping;

[0018] The mounting base is connected to a power source via a wire.

[0019] This utility model also proposes a car seat, wherein the back of the car seat is provided with the aforementioned headrest with electric stimulation function.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In this invention, the left and right wings are rotatably mounted on the headrest body, and a first electrical stimulation contact and a second electrical stimulation contact are respectively provided on the left and right wings. By rotating the left and right wings, the positions of the first and second electrical stimulation contacts can be adjusted so that the first and second electrical stimulation contacts are close to the mastoid process behind the passenger's ears. The control module controls the first and second electrical stimulation contacts to conduct electricity, forming electrical stimulation that acts on the mastoid process behind the passenger's ears (which is the vestibular organ of the inner ear), which can effectively prevent or alleviate motion sickness, and the prevention and relief effects are good.

[0022] In this invention, the stimulation current of the first and second electrical stimulation contacts is controlled to be less than or equal to 3.5 mA (far less than the safe current for the human body), which ensures safety and significantly improves the passenger's tolerance time and comfort.

[0023] In this invention, openings are provided on the side wing covers of the left and right wings. Both the first and second electrical stimulation contacts include a mounting base and a cover. The mounting base passes through the opening, and its inner side is connected to the power supply via an electrical wire. The cover is placed on the mounting base and is located outside the side wing covers, facilitating installation. A spring-loaded tab extends from the protrusion of the mounting base. When the cover is engaged with the protrusion, it presses against the spring-loaded tab, causing it to elastically deform and adhere tightly to the inner wall of the cover. This ensures good contact and reliable conductivity between the cover and the mounting base, and prevents the mounting base from easily loosening. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the headrest with electrical stimulation function of this utility model (the cover is omitted);

[0025] Figure 2 An exploded view of the first electrical stimulation contact / second electrical stimulation contact (wires omitted);

[0026] Figure 3 for Figure 2 A diagram from another perspective;

[0027] Figure 4 This is a cross-sectional view of the first / second electrical stimulation contact after it has been installed on the side wing sleeve.

[0028] In the picture:

[0029] 1. Headrest main body; 11. Left wing; 12. Right wing; 100. Side wing cover;

[0030] 2. First electrical stimulation contact; 231. Mounting base; 232. Cover; 231A. Boss; 231B. Edge; 231C. Spring;

[0031] 3. Second electrical stimulation contact. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] like Figures 1-4 As shown, this embodiment of a headrest with electrical stimulation function is applied to a car seat. The headrest mainly includes:

[0038] The headrest body 1 has a left wing 11 and a right wing 12 on its left and right sides, respectively. The left wing 11 and the right wing 12 are rotatable relative to the headrest body 1. Specifically, the left wing 11 and the right wing 12 can be hinged to the left and right sides of the headrest body 1 via pivots. Alternatively, the left wing 11 and the right wing 12 can be integrated with the headrest body 1. A bend line is provided between the left wing 11 and the headrest body 1, and between the right wing 12 and the headrest body 1, to facilitate bending of the left wing 11 and the right wing 12 along the bend line. Optionally, the headrest body 1 can be height-adjustable and / or left-right adjustable to adjust the spatial position of the headrest.

[0039] The first electrical stimulation contact 2 and the second electrical stimulation contact 3 are located on the left wing 11 and the second electrical stimulation contact 3 is located on the right wing 12. In actual use, the left wing 11 and the right wing 12 can be rotated to bring the first electrical stimulation contact 2 and the second electrical stimulation contact 3 close to the mastoid process behind the passenger's ear. That is, for passengers of different body types, the positions of the first electrical stimulation contact 2 and the second electrical stimulation contact 3 can be adjusted by adjusting the positions of the left wing 11 and the right wing 12, so that the first electrical stimulation contact 2 and the second electrical stimulation contact 3 can be accurately applied to the mastoid process behind the passenger's ear.

[0040] A control module (not shown in the figure) is electrically or communicatively connected to the first electrical stimulation contact 2 and the second electrical stimulation contact 3. The control module can control the first electrical stimulation contact 2 and the second electrical stimulation contact 3 to pass a preset stimulation current. This stimulation current provides electrical stimulation to the mastoid process area behind the passenger's ear. The stimulation current is less than the safe current value for the human body (generally less than 30 mA) to ensure safety. Many wearable GVS devices can effectively improve a user's tolerance to motion sickness by monitoring head movements, predicting the risk of motion sickness, and providing early electrical stimulation intervention.

[0041] Specifically, in this embodiment, the stimulation current is less than or equal to 3.5 mA, a value far lower than the safe current value for the human body. When a small stimulation current of less than or equal to 3.5 mA is applied to the mastoid process behind the ear, an artificial potential difference is generated, which can regulate feedback from the vestibular system, helping it adapt quickly and reducing sensory impact. The vestibular system, located in the inner ear, plays a crucial role in perceiving head position and direction of movement, influencing functions such as balance, spatial orientation, and gaze stability. Therefore, applying this small stimulation current to the mastoid process behind the passenger's ear can effectively alleviate or prevent motion sickness, desensitizing the passenger to its symptoms.

[0042] The stimulation current of 3.5 mA or less is a relatively effective safe current intensity. This stimulation current is far below the human perception threshold and danger threshold. It usually only causes passengers to experience a slight tingling sensation or a slight change in balance, without causing pain or muscle spasms.

[0043] More specifically, in this embodiment, the stimulation current is configured as a 1 kHz sinusoidal current of less than or equal to 3.5 mA. This frequency of sinusoidal current can produce a good balance effect on the human body. The magnitude and frequency of the stimulation current take into account effectiveness, comfort and safety.

[0044] In practical use, the headrest in this embodiment has a left wing 11 and a right wing 12 rotatably mounted on the headrest body 1. A first electrical stimulation contact 2 and a second electrical stimulation contact 3 are respectively provided on the left wing 11 and the right wing 12. By rotating the left wing 11 and the right wing 12, the positions of the first electrical stimulation contact 2 and the second electrical stimulation contact 3 can be adjusted so that they are close to the mastoid processes behind the passenger's ears. The control module controls the first electrical stimulation contact 2 and the second electrical stimulation contact 3 to conduct electricity, forming electrical stimulation that acts on the mastoid processes behind the passenger's ears (which are the vestibular organs of the inner ear). This effectively prevents or alleviates motion sickness, with good prevention and relief effects. Furthermore, the stimulation current of the first electrical stimulation contact 2 and the second electrical stimulation contact 3 is controlled to be less than or equal to 3.5 mA (far less than the safe current for the human body), ensuring safety while significantly improving the passenger's tolerance time and comfort.

[0045] like Figures 2-4 As shown in this embodiment, both the left wing 11 and the right wing 12 are provided with side wing covers 100, i.e., skin. The first electrical stimulation contact 2 and the second electrical stimulation contact 3 are respectively provided on the side wing cover 100 of the left wing 11 and the side wing cover 100 of the right wing 12. Their working parts are located on the outer surface of the side wing cover 100 and can directly contact the passenger's skin.

[0046] Specifically, both the first electrical stimulation contact 2 and the second electrical stimulation contact 3 include a mounting base 231 and a cover 232, both of which are metal parts. When they come into contact, electrical conductivity is achieved. Furthermore, both the mounting base 231 and the cover 232 can be formed by stamping, ensuring ease of manufacturing. The cover 232 covers the mounting base 231, contacts and conducts electrically with it, and its outer surface can directly contact human skin. A wire is provided on the mounting base 231, connecting it to a power source, allowing the power to supply power to the first electrical stimulation contact 2 and the second electrical stimulation contact 3.

[0047] More specifically, openings are provided on the side wing covers 100 of both the left wing 11 and the right wing 12. The mounting base 231 extends outward from the inside of the side wing cover 100 into the openings, and the cover 232 is snapped onto the mounting base 231 from the outside of the side wing cover 100. That is, the side wing cover 100 is located between the cover 232 and the mounting base 231, and the side wing cover 100 is sandwiched between the mounting base 231 and the cover 232, ensuring that the installation positions of the first electrical stimulation contact 2 and the second electrical stimulation contact 3 are fixed and reliable. Moreover, the mounting base 231 and the cover 232 are located on the inner and outer sides of the side wing cover 100, respectively, which facilitates the installation of the first electrical stimulation contact 2 and the second electrical stimulation contact 3.

[0048] Both the mounting base 231 and the cover 232 can be designed in a waist shape. The mounting base 231 includes a boss 231A and a retaining edge 231B disposed around the boss 231A. The retaining edge 231B is located inside the side wing sleeve 100 and serves to limit the mounting base 231 from the inside of the side wing sleeve 100 outward. The boss 231A passes through the opening from the inside to the outside, facilitating the installation of the cover 232, which is then snapped onto the boss 231A.

[0049] In a preferred embodiment, a spring piece 231C extends outward from the boss 231A, forming an upward-curving spring piece 231C on the boss 231A. The spring piece 231C abuts against the inner wall of the cover 232. When the cover 232 is engaged with the boss 231A, the inner wall of the cover 232 presses against the spring piece 231C, causing the spring piece 231C to elastically deform, thereby making the spring piece 231C tightly adhere to the inner wall of the cover 232.

[0050] In practical use, this embodiment has openings on the side wing covers 100 of the left wing 11 and right wing 12. The first electrical stimulation contact 2 and the second electrical stimulation contact 3 both include a mounting base 231 and a cover 232. The mounting base 231 passes through the opening, and its inner side is connected to the power supply through an electric wire. The cover 232 covers the mounting base 231 and is located outside the side wing cover 100, making installation convenient. Among them, a spring piece 231C extends from the boss 231A of the mounting base 231. When the cover 232 is engaged with the boss 231A, it presses against the spring piece 231C, causing the spring piece 231C to undergo elastic deformation. The spring piece 231C is tightly attached to the inner wall of the cover 232, ensuring good contact and reliable conduction between the cover 232 and the mounting base 231, and preventing the mounting base 231 from easily loosening.

[0051] In this solution, the headrest with electrical stimulation function can effectively alleviate and prevent motion sickness, and the effect is obvious and easy to install.

Claims

1. A headrest with electrical stimulation function, used in a car seat, characterized in that, include: The headrest body has a left wing and a right wing respectively on its left and right sides, and the left wing and the right wing can rotate relative to the headrest body. A first electrical stimulation contact and a second electrical stimulation contact, wherein the first electrical stimulation contact is disposed on the left wing and the second electrical stimulation contact is disposed on the right wing; The first and second electrical stimulation contacts can be brought into contact with the mastoid process behind the passenger's ear by rotating the left and right wings. The control module is electrically or communicatively connected to the first and second electrical stimulation contacts. The control module can control the first and second electrical stimulation contacts to generate electrical stimulation on the mastoid process behind the passenger's ear by passing a preset stimulation current. The stimulation current is less than the safe current value for the human body.

2. The headrest with electrical stimulation function according to claim 1, characterized in that, The stimulation current is less than or equal to 3.5 mA.

3. The headrest with electrical stimulation function according to claim 1, characterized in that, The stimulation current is configured as a 1 kHz sinusoidal current of less than or equal to 3.5 mA.

4. The headrest with electrical stimulation function according to claim 1, characterized in that, Both the left and right wings are provided with wing covers, and the first and second electrical stimulation contacts are respectively located on the wing covers of the left and right wings.

5. The headrest with electrical stimulation function according to claim 4, characterized in that, Both the first and second electrical stimulation contacts include a mounting base and a cover. The cover is disposed on the mounting base and is in communication with the mounting base.

6. The headrest with electrical stimulation function according to claim 5, characterized in that, The side wing cover has an opening, the mounting base extends from the inside of the side wing cover outward through the opening, and the cover is snapped onto the mounting base from the outside of the side wing cover.

7. The headrest with electrical stimulation function according to claim 6, characterized in that, The mounting base includes a boss and a retaining edge disposed around the boss. The retaining edge is located inside the side wing sleeve. The boss passes through the opening from the inside to the outside. The cover is snapped onto the boss. A spring plate extends outward from the protrusion and abuts against the inner wall of the cover.

8. The headrest with electrical stimulation function according to claim 7, characterized in that, When the cover is engaged with the protrusion, the inner wall of the cover presses against the spring piece, causing the spring piece to undergo elastic deformation and the spring piece to fit tightly against the inner wall of the cover.

9. The headrest with electrical stimulation function according to claim 5 or 6, characterized in that, Both the mounting base and the cover are metal parts, and both can be formed by stamping. The mounting base is connected to a power source via a wire.

10. A car seat, characterized in that, The backrest of the car seat is equipped with a headrest with electrical stimulation function as described in any one of claims 1-9.

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