Massage mattress and massage bed

Abstract

This invention relates to the field of massage mattresses, specifically to a massage mattress and massage bed. The massage mattress includes a comfort layer, an isolation support layer, and a massage head. The isolation support layer is located below the comfort layer and has one or more pre-set receiving chambers. The massage head is disposed inside the receiving chambers and includes a flexible cavity and an electromagnetic coil. The flexible cavity is sealed with a magnetorheological fluid, and the electromagnetic coil is used to generate or deactivate a magnetic field. When the electromagnetic coil is not working, the flexible cavity is in a soft state and deforms under external force to fill the receiving chambers. When the electromagnetic coil is working, the flexible cavity forms a solid massage head. In embodiments of this invention, the massage head can soften, deform, and fill pre-set gaps in the mattress when the massage function is off, thereby eliminating gaps and voids in the mattress's support surface.

Description

Technical Field

[0001] This invention relates to the field of massage mattresses, and more specifically to a massage mattress.

[0002] The present invention also relates to a massage bed. Background Art

[0003] Currently, most massage mattresses on the market use a mechanical massage system. This system typically embeds a mechanical module inside the mattress, consisting of a motor, eccentric wheel, connecting rod, and massage heads. Driven by the motor, the rigid massage heads rotate, tap, knead, or rise and fall, thereby applying physical stimulation to the body.

[0004] However, mechanical massage solutions have significant drawbacks. When the massage function is not activated, these stationary, hard, rigid massage heads rest under the mattress filling layer, causing gaps and air pockets inside the mattress. When users lie down, they can clearly feel these foreign objects, which greatly affects the comfort of the mattress. This inherent structural problem makes it difficult to integrate the massage function and sleep function of the mattress. Summary of the Invention

[0005] The purpose of this invention is to provide a massage mattress and massage bed that addresses the problems of gaps and hollow areas inside existing mechanical massage mattresses.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A massage mattress, comprising:

[0008] A comfort layer;

[0009] An isolation support layer located below the comfort layer, wherein the isolation support layer has one or more pre-set receiving chambers;

[0010] At least one massage head is disposed inside the receiving cavity;

[0011] The massage head includes:

[0012] A flexible cavity is sealed with a magnetorheological fluid. The flexible cavity has a first stable shape and a second stable shape. The first stable shape is configured as a massage head shape. The second stable shape is configured to fit the receiving chamber, thereby forming a continuous, gapless integral support surface together with the isolation support layer.

[0013] An electromagnetic coil is used to generate or deactivate a magnetic field sufficient to cause a state transition in the magnetorheological fluid;

[0014] One or more elastic elements are disposed inside the flexible cavity, so that after the flexible cavity is compressed and deformed into the second steady-state shape under external force, it can automatically return to the first steady-state shape when the external force is removed;

[0015] in,

[0016] When the magnetic field is removed, the magnetorheological fluid is in a liquid state, and the flexible cavity is in a soft state, capable of deforming into a first stable shape under the action of the elastic element, or deforming into a second stable shape under the action of external force;

[0017] When the magnetic field is generated, the magnetorheological fluid is in a semi-solid state, and the flexible cavity is in a rigid state, which can resist deformation and push the comfort layer to apply massage force.

[0018] Furthermore, the flexible cavity includes a radially telescopic section, which is configured to maintain an inverted concave bowl shape when not subjected to external force and the elastic force of the elastic element.

[0019] Furthermore, the flexible cavity also includes an axially telescopic section, the sidewall of which has annular folds.

[0020] Furthermore, at least a portion of the flexible cavity is made of a magnetically conductive elastomer composite material to guide and concentrate the magnetic field generated by the electromagnetic coil, and the electromagnetic coil is structurally separated from the flexible cavity.

[0021] Furthermore, the magnetically conductive elastomer composite material includes an elastomer matrix and soft magnetic particles uniformly dispersed in the elastomer matrix.

[0022] Furthermore, the elastomer matrix is ​​silicone rubber or thermoplastic elastomer, and the soft magnetic particles are carbonyl iron powder or ferrite powder.

[0023] Furthermore, the electromagnetic coil has a ring structure and is configured to be disposed around the bottom of the flexible cavity, and does not directly contact the sidewall of the flexible cavity.

[0024] Furthermore, it also includes a base plate fixed below the isolation support layer, and a drive mechanism connected between the base plate and the massage head, the drive mechanism being used to drive the massage head to perform preset massage actions.

[0025] Furthermore, the driving mechanism is a linear driver or a rotary driver.

[0026] A massage bed with a massage mattress also includes a bed frame for supporting the massage mattress.

[0027] The beneficial effects of this invention are:

[0028] When the massage function is turned off, the massage head of the embodiment of the present invention can soften, deform and fill the preset gaps in the mattress, thereby eliminating gaps and hollows in the support surface of the mattress. Attached Figure Description

[0029] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0030] Figure 1 This is a cross-sectional view of the first steady state of an embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional view of the second steady state of an embodiment of the present invention;

[0032] Figure 3 This is a perspective view of the initial shape of the massage head of the present invention;

[0033] Figure 4 The front view of the initial shape of the massage head;

[0034] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0035] The labels in the diagram represent the following:

[0036] 1-Flexible cavity; 11-Annular pleats; 12-Elastic element; 2-Electromagnetic coil; 31-Base; 32-Fixed bracket; 33-End plug; 4-Drive mechanism; 5-Comfort layer; 6-Isolation support layer; 7-Substrate. Detailed Implementation

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] refer to Figure 1 , Figure 2 .

[0039] This embodiment provides a massage mattress, including a comfort layer 5, an isolation support layer 6, and a base plate 7 connected sequentially from top to bottom.

[0040] Comfort layer 5 is located at the top and is usually made of 2-5 cm thick latex or memory foam. It comes into direct contact with the user's body and provides a comfortable, enveloping feeling during sleep.

[0041] The isolation support layer 6 is a high-density sponge with good support. One or more accommodating chambers are pre-designed according to the ergonomic layout of this layer. The shape and depth of these accommodating chambers are precisely designed to accommodate and hide the massage head underneath in "sleep mode".

[0042] refer to Figure 3 , Figure 4 , Figure 5 The core structure of the massage head includes a flexible cavity 1 and an electromagnetic coil 2 that works with it.

[0043] Inside the flexible cavity 1, a magnetorheological fluid is sealed and filled. This fluid has the characteristic of being able to undergo rapid and reversible transformation between a low-viscosity liquid state and a high-viscosity semi-solid state with shear strength under the action of an external magnetic field.

[0044] The function of the electromagnetic coil 2 is to selectively generate or deactivate a magnetic field according to the control command, the strength of which is sufficient to trigger the state transition of the magnetorheological fluid inside the flexible cavity 1.

[0045] The electromagnetic coil 2 is physically separate from the flexible cavity 1; the two are not integrally formed or tightly fitted together.

[0046] The massage heads are arranged in a two-dimensional array according to the location of key acupoints or muscle groups on the back, waist, and legs of the human body, and fixed on a base plate 7. Each massage head or a group of massage heads is equipped with a drive mechanism, such as a linear driver or a rotary driver, on the base plate 7.

[0047] Preferably, the linear driver is a lead screw stepper motor or a voice coil motor, which can realize acupressure and pressure functions, as well as tapping functions: the lead screw stepper motor can drive the massage head (after hardening) connected to it to perform slow, precise, and high-thrust vertical lifting and lowering movements to simulate acupressure or pressure techniques; the voice coil motor can drive the massage head connected to it to perform high-frequency, short-stroke reciprocating movements to simulate tapping or patting techniques.

[0048] On the other hand, the rotary driver is an eccentric rotating disk driven by a micro DC motor, which can realize the kneading function: the micro DC motor can drive the connected massage head (after hardening) to perform small-range circular motion to simulate kneading. It can also be controlled by the controller to make 2 to 3 adjacent massage heads move up and down according to a preset time difference to form wave-like continuous pressure, thereby simulating the kneading sensation.

[0049] The massage mattress can switch between the following two modes.

[0050] Sleep Mode: When the user selects sleep mode, the electromagnetic coil 2 is de-energized, the magnetic field disappears, and the magnetorheological fluid inside the flexible cavity 1 becomes a low-viscosity liquid, making the entire flexible cavity 1 soft. When the user lies on the mattress, the weight of their body is transmitted through the comfort layer 5, and this soft cavity will be compressed and adaptively deformed. Its shape and volume can perfectly fill the entire accommodating chamber. At this time, the flexible cavity 1 and the surrounding isolation support layer 6 form a smooth, continuous, and seamless support plane. Because the gaps inside the mattress are dynamically filled, hard spots and hollow feeling are completely eliminated. The user can only feel the comfort layer 5 and the uniform isolation support layer 6, thus obtaining undisturbed high-quality sleep.

[0051] Massage mode: After the pressure is removed, the flexible cavity 1 returns to its preset full shape under the action of its own elasticity. When the user starts the massage function, the controller instructs the electromagnetic coil 2 to pass current to generate a magnetic field. The magnetic field causes the magnetorheological fluid to change from a liquid state to a high-intensity semi-solid state. At this time, the entire flexible cavity 1 becomes a solid and fixed-shape massage head. With the drive mechanism 4, this solid massage head can powerfully lift the upper comfort layer 5 to perform deep massage such as acupressure, kneading or tapping on the user's body.

[0052] The following section will describe in detail the specific structure of the massage head, aiming to explain in detail a technical solution that can achieve "on-demand display" and "unobtrusive concealment" massage functions.

[0053] The seamless concealment of the massage head means that when massage is not needed, the massage head appears soft and without any foreign body sensation.

[0054] On-demand display of the massage head refers to the ability of the massage head to quickly become firm and capable of transmitting effective force when a massage is needed.

[0055] The principle behind the seamless concealment of the massage head is as follows: When the electromagnetic coil 2 is instructed not to generate a magnetic field, the magnetorheological fluid inside it will remain in its natural low-viscosity liquid state. The flexible cavity 1 itself is soft and deformable. The overall appearance of the flexible cavity 1 and the magnetorheological fluid is soft and easily compressible. The electromagnetic coil 2 and the flexible cavity 1 are physically separated from each other, so that the user's body will only come into contact with the soft flexible cavity 1 and will not directly come into contact with the rigid electromagnetic coil 2.

[0056] The principle behind the on-demand display of the massage head is as follows: When a massage is needed, the electromagnetic coil 2 generates a magnetic field according to the instruction; the magnetic field acts on the magnetorheological fluid inside the cavity and reaches an intensity sufficient to trigger its state transition. At this time, the magnetorheological fluid reversibly changes from a liquid state to a high-viscosity, semi-solid state with shear strength. When the filling material inside the cavity becomes semi-solid, the entire flexible cavity 1 transforms from a soft sac into a robust massage head with a specific shape and hardness.

[0057] It should be noted that the flexible cavity 1 itself has a certain degree of elasticity, and its interior is equipped with elastic elements 12 (such as spring coils or spring sheets) that increase its elasticity and constrain the rebound shape of the flexible cavity 1 to a certain extent.

[0058] This allows the flexible cavity 1 to recover its original massage head shape when the user leaves, thanks to its own elasticity (and the guidance of the elastic element 12), and to redistribute the magnetorheological fluid inside it. As a result, when the electromagnetic coil 2 is working, the flexible cavity 1 and the magnetorheological fluid can maintain the pre-designed shape of the massage head.

[0059] In order to achieve the following: during massage, the flexible cavity 1 maintains the shape of a massage head, and during sleep, the flexible cavity 1 maintains a shape that fills the receiving chamber without gaps, the flexible cavity 1 is configured to have a first stable shape and a second stable shape, wherein the shape of the first stable shape is configured to be preset as the shape of a massage head, and the second stable shape is configured to conform to the receiving chamber.

[0060] To achieve bistable switching between "massage" and "sleep" modes in the flexible cavity 1, this embodiment proposes a composite structure coaxially coupled with a radial telescopic section and an axial telescopic section. This structure cleverly utilizes fluid dynamics principles to intelligently transform external pressure into adaptive reconfiguration of the internal morphology. The specific implementation method is as follows:

[0061] The radial telescopic section at the top adopts an "inverted concave bowl" structure, which makes its natural cross-section present an "M" shape. The "M" shaped structure is a key technical means to achieve seamless hiding and on-demand display.

[0062] Seamless concealment: When the flexible cavity 1 is subjected to pressure from a person lying down, the "M"-shaped structure can instantly and passively flip and extend outward, achieving a wide range of radial expansion. This characteristic of expanding under pressure allows it to actively and seamlessly fill and eliminate potential gaps in the cavity, ensuring that the isolation support layer 6 forms a flat and continuous support surface, thereby solving the problems of hollowness and foreign body sensation caused by the presence of hard massage heads in traditional solutions.

[0063] On-demand display: When the external force is removed or the "massage mode" is entered, the top and bottom of the "M"-shaped structure can be instantly and passively flipped outward under the synergistic effect of the internal elastic element 12, so that the "M"-shaped structure can more easily form an ellipse with an axial length greater than the radial length after expansion. This design enhances the effective length of the massage head, thereby achieving a deeper and more effective massage experience.

[0064] The axial extension section of the sidewall is designed as a bellows shape with annular folds 11, thereby enabling the flexible cavity 1 to have excellent axial compression and extension capabilities.

[0065] The axial expansion joint has a dual function:

[0066] Fluid-driven: When under pressure and entering "sleep mode", the compression of the axial expansion section is not just a simple deformation, but also a highly efficient "pumping" behavior. It can actively push the internal magnetorheological fluid to the top radial expansion section, providing fluid dynamic support for the rapid and full expansion of the radial expansion section and ensuring perfect filling of the containment chamber.

[0067] Massage depth: When the external force is removed or the "massage mode" is entered, the high extensibility of the bellows structure, under the synergistic effect of the internal elastic element 12, can push the top of the flexible cavity 1 to a higher position. Compared with a single-structure cavity, this design enhances the effective length of the massage head, thereby achieving a deeper and more effective massage experience.

[0068] Furthermore, in order to efficiently apply the magnetic field generated by the separated electromagnetic coil 2 to the magnetorheological fluid inside the cavity, at least a portion of the flexible cavity 1, preferably the whole, is made of a special magnetically conductive elastomer composite material.

[0069] This material can serve as a guide and converging pathway for the magnetic field while maintaining the flexibility of the cavity, capturing and efficiently conducting and concentrating the magnetic field generated by the electromagnetic coil 2 into the interior of the flexible cavity 1.

[0070] In a preferred embodiment, the magnetorheological fluid is composed of micron-sized soft magnetic particles (such as carbonyl iron powder) uniformly suspended in a carrier liquid (such as synthetic oil). Correspondingly, the electromagnetic coil 2 generates a controllable magnetic field by passing an electric current through it. When the electromagnetic coil 2 is energized, the generated magnetic field causes the magnetorheological fluid to change from a liquid state to a semi-solid state; when the power is turned off, the magnetic field disappears and the magnetorheological fluid returns to a liquid state.

[0071] The magnetically conductive elastomer composite material consists of two parts: an elastomer matrix and soft magnetic particles.

[0072] In the preparation process, micron-sized soft magnetic particles are used as functional fillers and are uniformly dispersed in the liquid elastomer matrix prepolymer under stirring, followed by vulcanization or hardening molding.

[0073] Uniform dispersion of soft magnetic particles is key to ensuring consistent magnetic and mechanical properties of the cavity.

[0074] The specific steps include: uniformly mixing a predetermined proportion (e.g., 20% to 50% by weight) of micron-sized soft magnetic powder (such as spherical carbonyl iron powder or hexagonal flake ferrite powder) into an uncured liquid silicone rubber matrix, and then forming an integrated flexible cavity 1 by injection molding.

[0075] To meet the requirements of skin-friendliness, durability, and manufacturing processes, silicone rubber is the preferred elastomer matrix due to its excellent biocompatibility, resistance to high and low temperatures, and fatigue resistance. Thermoplastic elastomers may also be selected for other cost-sensitive applications or those with specific mechanical requirements.

[0076] The soft magnetic particles are preferably carbonyl iron powder or ferrite powder with high magnetic permeability and low coercivity, and their particle shape is preferably spherical or near-spherical to ensure fluidity and dispersibility in the elastomer matrix.

[0077] To achieve a separate layout between the electromagnetic coil 2 and the flexible cavity 1, the electromagnetic coil 2 is designed as an independent rigid component with a ring structure.

[0078] The electromagnetic coil 2 adopts a ring structure. During assembly, the electromagnetic coil 2 is positioned at the bottom of the flexible cavity 1 or around the base 31. This arrangement keeps the heated rigid coil away from the upper part of the flexible cavity 1, which is in direct or indirect contact with the human body, thereby optimizing heat dissipation and user comfort.

[0079] To achieve a stable and precise fit: the lower part of the flexible cavity 1 is designed with a relatively large disc-shaped base 31, and an annular fixing bracket 32 ​​connects the electromagnetic coil 2 and the base 31 into one unit, ensuring that the two are coaxial and maintain a small gap. The inner diameter of the electromagnetic coil 2 is slightly larger than the outer diameter of the flexible cavity 1. During installation, the electromagnetic coil 2 is sleeved on the outside of the flexible cavity 1.

[0080] This design ensures that the electromagnetic coil 2 does not directly contact the axial extension section of the flexible cavity 1, providing an interference-free space for the axial deformation of the axial extension section.

[0081] It should also be noted that: there is a liquid injection port at the center of the base 31, which is used to inject magnetorheological fluid into the interior of the flexible cavity 1 after the flexible cavity 1 and the base 31 are connected by the fixed bracket 32. After injection, the liquid injection port is sealed by the plug 33.

[0082] In addition, this embodiment also proposes a massage bed, which includes a deformable (lifted or lowered) bed frame (not shown in the figure) for supporting a massage mattress, so that the massage mattress can be formed into various massage-friendly shapes under the action and support of the bed frame to improve the posture of the user being massaged.

[0083] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered as falling within the scope of protection of the embodiments of the present invention.

Claims

1. A massage mattress, characterized in that, include: A comfort layer (5); An isolation support layer (6) located below the comfort layer (5), wherein one or more receiving chambers are pre-set on the isolation support layer (6); At least one massage head is disposed inside the receiving cavity; The massage head includes: A flexible cavity (1) is sealed with a magnetorheological fluid. The flexible cavity (1) has a first stable shape and a second stable shape. The first stable shape is configured as a massage head shape. The second stable shape is configured to fit the receiving chamber, thereby forming a continuous, gapless integral support surface together with the isolation support layer (6). An electromagnetic coil (2) is used to generate or deactivate a magnetic field sufficient to cause a state transition of the magnetorheological fluid; One or more elastic elements (12) are disposed inside the flexible cavity (1) so that after the flexible cavity (1) is compressed and deformed into the second steady-state shape under external force, it can automatically return to the first steady-state shape when the external force is removed; in, When the magnetic field is removed, the magnetorheological fluid is in a liquid state, and the flexible cavity (1) is in a soft state, which can be deformed into a first steady-state shape under the action of the elastic element (12), or deformed into a second steady-state shape under the action of external force; When the magnetic field is generated, the magnetorheological fluid is in a semi-solid state, and the flexible cavity (1) is in a rigid state, which can resist deformation and push the comfort layer (5) to apply massage force; At least a portion of the flexible cavity (1) is made of a magnetically conductive elastomer composite material to guide and concentrate the magnetic field generated by the electromagnetic coil (2), and the electromagnetic coil (2) is structurally separated from the flexible cavity (1); the electromagnetic coil (2) has a ring structure and is configured to be disposed around the bottom of the flexible cavity (1) and not in direct contact with the sidewall of the flexible cavity (1); it also includes a substrate (7) fixed below the isolation support layer (6), and a drive mechanism (4) connected between the substrate (7) and the massage head, the drive mechanism (4) being used to drive the massage head to perform a preset massage action; the drive mechanism (4) is a linear driver or a rotary driver.

2. The massage mattress according to claim 1, characterized in that, The flexible cavity (1) includes a radial telescopic section, which is configured to maintain an inverted concave bowl shape when not subjected to external force and the elastic force of the elastic element (12).

3. The massage mattress according to claim 2, characterized in that, The flexible cavity (1) further includes an axial telescopic section, the sidewall of which has annular folds (11).

4. The massage mattress according to claim 1, characterized in that, The magnetically conductive elastomer composite material includes an elastomer matrix and soft magnetic particles uniformly dispersed in the elastomer matrix.

5. The massage mattress according to claim 4, characterized in that, The elastomer matrix is ​​silicone rubber or thermoplastic elastomer, and the soft magnetic particles are carbonyl iron powder or ferrite powder.

6. A massage bed comprising the massage mattress according to any one of claims 1-5, characterized in that, It also includes a bed frame for supporting the massage mattress.

Images