A heated seat cushion

Abstract

This utility model discloses a heated seat cushion, relating to the field of seat cushion technology. It includes a seat cushion body with at least two heating elements arranged inside, laid flat within the cushion body. It also includes a power cord located outside the cushion body, one end of which extends into the cushion body and is electrically connected to the heating elements. The other end of the power cord has a power connector with a temperature adjustment button. The arrangement of the two heating elements laid flat inside the cushion body expands the effective heating coverage area. Simultaneously, the synergistic effect of multiple heating elements reduces the problem of localized overheating that can easily occur with a single heating element, resulting in a more uniform temperature distribution on the surface of the cushion body and improved warmth and comfort. The temperature adjustment button allows users to flexibly adjust the power of the heating elements to adjust the temperature according to the season or their personal comfort, avoiding excessively high temperatures that burn the skin or excessively low temperatures that fail to provide warmth, further enhancing the user experience.

Description

Technical Field

[0001] This utility model relates to the field of seat cushion technology, and in particular to a heated seat cushion. Background Technology

[0002] Heated seat cushions, as a type of localized thermal management device, typically achieve their heating function through internally embedded heating elements. They are widely used to improve the thermal comfort of seats in cold environments, especially when the weather is extremely cold, as users often need to add a seat cushion to keep warm when sitting on a chair or stool.

[0003] The heating elements built into current mainstream heated seat cushions have low heating uniformity, significant local temperature differences, and slow heating speed, requiring users to wait a long time, resulting in a poor user experience.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heated seat cushion, comprising a seat cushion body, wherein at least two heating elements are disposed inside the seat cushion body, and the two heating elements are laid flat inside the seat cushion body; It also includes a power cord located outside the seat cushion body, one end of which extends into the interior of the seat cushion body and is electrically connected to the heating element, and the other end of the power cord is provided with a power connector, which is provided with a temperature adjustment button.

[0007] As a further embodiment of this utility model: the seat cushion body is provided with an electrical connection wire that is electrically connected to two heating elements, the end of the electrical connection wire is provided with a connector, the power line is provided with an interface, and the interface of the power line extends into the seat cushion body and is plugged into the connector.

[0008] As a further embodiment of this utility model: the seat cushion body includes a soft cushion one and a soft cushion two, the heating element is located between the soft cushion one and the soft cushion two, and a detachable connecting mechanism is provided between the soft cushion one and the soft cushion two.

[0009] As a further embodiment of the present invention: the detachable connection mechanism includes a first Velcro assembly disposed on both sides of the first pad and the second pad, the first Velcro assembly including a first pile surface disposed on both sides of the first pad and a first bristle surface disposed on both sides of the second pad to match the first pile surface.

[0010] As a further embodiment of this utility model: the two first Velcro components are symmetrically distributed.

[0011] As a further embodiment of this utility model: the detachable connection mechanism further includes a second Velcro assembly disposed on the other two symmetrical sides of the first and second cushions, which is distributed alternately with the first Velcro assembly on the four sides of the first and second cushions.

[0012] As a further embodiment of this utility model: the second Velcro assembly includes a second bristle surface disposed on both sides of the first pad and a second pile surface disposed on both sides of the second pad and used in conjunction with the second bristle surface.

[0013] As a further embodiment of this utility model: the soft pad one is provided with a positioning groove corresponding to the two heating elements on the side facing the soft pad two.

[0014] As a further embodiment of this utility model: positioning grooves are provided on all four sides of the side of the soft pad one facing the soft pad two, and positioning strips corresponding to the positioning grooves are provided on all four sides of the side of the soft pad two.

[0015] As a further embodiment of this utility model, the heating element is a rechargeable graphene heating element.

[0016] Compared with the existing technology, the beneficial effects of this technical solution are as follows: by laying two heating elements flat inside the seat cushion body, the effective heating coverage area can be expanded. At the same time, by utilizing the synergistic effect of multiple heating elements, the problem of local overheating that is easy to be caused by a single heating element can be reduced, making the surface temperature distribution of the seat cushion body more uniform and improving the warmth and comfort. One end of the power cord extends into the seat cushion body to connect to the heating element, while the other end connects to an external power source via a power connector. This supports both mobile and stationary scenarios, eliminating the limitations of a single power supply method and expanding the product's usage scenarios. The temperature adjustment button on the power connector allows users to flexibly adjust the power of the heating element to adjust different temperatures according to the season or their personal comfort, avoiding the problem of excessively high temperatures causing burns or excessively low temperatures failing to keep the skin warm, further enhancing the user experience. Users can also quickly detach and assemble cushion one and cushion two using the first and second Velcro assemblies set between them. When the heating element malfunctions or needs to be replaced, the first and second Velcro assemblies bonded to the first pile surface and the first bristle surface bonded to the second pile surface can be quickly peeled apart, thus separating cushion one and cushion two. This facilitates the inspection and replacement of the heating element without damaging the overall structure of the seat cushion body, and also makes it easy to clean both of them, avoiding contact between the internal heating element and water during cleaning.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first and second soft pads of this utility model when they are separated; Figure 3 This is a structural schematic diagram of the soft pad of this utility model; Figure 4 This is a schematic diagram of the structure of the second type of soft pad of this utility model; Figure 5 This is the schematic diagram of the temperature control logic circuit of this utility model; Figure 6 This is the circuit diagram of the indicator light of this utility model; The corresponding labels in the attached diagram are explained as follows: 1. Seat cushion body; 11. Soft cushion one; 12. Soft cushion two; 13. Positioning groove; 14. Positioning groove; 15. Positioning strip; 2. Heating element; 21. Electrical connection wire; 22. Plug; 3. Power cord; 31. Interface; 4. Power connector; 41. Temperature adjustment button; 5. First Velcro assembly; 51. First fleece surface; 52. First burr surface; 6. Second Velcro assembly; 61. Second burr surface; 62. Second fleece surface. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 A heated seat cushion includes a seat cushion body 1, and at least two heating elements 2 are disposed inside the seat cushion body 1, and the two heating elements 2 are laid flat inside the seat cushion body 1. It also includes a power cord 3 located outside the seat cushion body 1. One end of the power cord 3 extends into the interior of the seat cushion body 1 and is electrically connected to the heating element 2. The other end of the power cord 3 is provided with a power connector 4, and the power connector 4 is provided with a temperature adjustment button 41.

[0022] Specifically, by laying two heating elements 2 flat inside the seat cushion body 1, the effective heating coverage area can be expanded. At the same time, by utilizing the synergistic effect of multiple heating elements 2, the problem of local overheating that is easy to be caused by a single heating element 2 can be reduced, making the surface temperature distribution of the seat cushion body 1 more uniform. When sitting for a long time, the core area of ​​the human body in contact with the seat cushion body 1 (such as the buttocks) can achieve uniform warmth, improving warmth and comfort. One end of the power cord 3 extends into the interior of the seat cushion body 1 to connect to the heating element 2, and the other end is connected to an external power source (such as a power bank or household power socket) through the power connector 4. It supports both mobile scenarios (such as outdoor camping or car use, powered by a power bank) and fixed scenarios (such as offices or home sofas, powered by a direct power plug), thus breaking free from the limitation of a single power supply method and expanding the product's usage scenarios. The temperature control button 41 on the power connector 4 allows users to flexibly adjust the power of the heating element 2 (corresponding to different temperature levels) according to the season or personal comfort, avoiding the problem of burning the skin due to excessive temperature or failing to keep warm due to excessive temperature, achieving personalized and precise temperature control, and further improving the user experience.

[0023] Preferably, the heating element 2 is a rechargeable graphene heating sheet.

[0024] Preferably, the seat cushion body 1 is provided with an electrical connection wire 21 that is electrically connected to the two heating elements 2. The end of the electrical connection wire 21 is provided with a connector 22. The power cord 3 is provided with an interface 31. The interface 31 of the power cord 3 extends into the seat cushion body 1 and is plugged into the connector 22. By setting the connection position of the interface 31 and the connector 22 inside the seat cushion body 1, the connection can be hidden, improving the overall aesthetics.

[0025] Preferably, the power cord 3 is made of fabric yarn, which makes the power cord 3 soft and has strong deformation ability.

[0026] Preferably, a PCB temperature control board is installed inside the power connector 4, such as... Figure 5 The diagram shown is a schematic of the temperature control logic circuit of this utility model. Its power supply logic is to connect to a 5V DC power supply (such as a computer USB port, power bank, or 5V adapter) through a USB connector. The F1 fuse limits the maximum current to ≤1A (to avoid exceeding the rated current of the USB interface). D1 is connected in reverse parallel to the power supply terminal to prevent damage to the circuit when the power supply is connected to the reverse polarity (such as the USB positive and negative terminals are reversed). The three-level temperature control logic is as follows: OFF position: The switch is off, there is no current to the heating element, and it stops working.

[0027] High temperature setting: The switch is directly connected to the heating element H (5Ω). At this time, the current I = 5V / 5Ω = 1A, and the power is 5W (highest temperature).

[0028] Medium temperature range: The switch is connected in series with R2 (5Ω) and H (5Ω), the total resistance is 10Ω, the current I = 5V / 10Ω = 0.5A, and the power is 2.5W (medium temperature).

[0029] Low temperature setting: The switch is connected in series with R1 (10Ω) and H (5Ω), the total resistance is 15Ω, the current I = 5V / 15Ω ≈ 0.33A, and the power is ≈ 1.67W (lowest temperature setting); Preferably, in this embodiment, based on the same logical principle, it can also be set to 5-level temperature adjustment or 6-level temperature adjustment. The three-level temperature adjustment shown in the embodiment is not limiting.

[0030] In another embodiment, an indicator light (not shown in the figure) may also be provided on the power connector 4. The circuit diagram of the indicator light is shown in the figure below. Figure 6 The indicator light is connected in parallel to the power supply. When the power is turned on, LED1 lights up through the current-limiting resistor, indicating that the circuit is working normally and does not affect the heating level adjustment.

[0031] In one embodiment, the seat cushion body 1 includes a first cushion 11 and a second cushion 12, a heating element 2 is located between the first cushion 11 and the second cushion 12, and a detachable connection mechanism is provided between the first cushion 11 and the second cushion 12.

[0032] Preferably, the detachable connection mechanism includes a first Velcro assembly 5 disposed on both sides of the first pad 11 and the second pad 12. The first Velcro assembly 5 includes a first pile surface 51 disposed on both sides of the first pad 11 and a first bristle surface 52 disposed on both sides of the second pad 12 and used to match the first pile surface 51.

[0033] Specifically, users can quickly detach and assemble the cushions using the first Velcro assembly 5 between the cushion 11 and the cushion 2. When the heating element 2 malfunctions or needs to be replaced, the fasteners attached to the first plush surface 51 and the first bristle surface 52 can be quickly peeled off, allowing the cushion 11 and the cushion 2 to be separated, facilitating the inspection and replacement of the heating element 2 without damaging the overall structure of the seat cushion body 1. Since cushion 11 and cushion 212 are objects that come into long-term contact with users and are usually in an open environment, they are prone to getting dirty and growing bacteria. At this time, the first Velcro assembly 5 is used to quickly separate cushion 11 and cushion 212, and remove the internal heating element 2. This makes it easy to clean both of them, so as to avoid the internal heating element 2 coming into contact with water during cleaning, avoid the heating element 2 from malfunctioning, and improve the service life of the heating element 2.

[0034] Preferably, the two first Velcro components 5 are symmetrically distributed, so that both sides of the first pad 11 and the second pad 12 are fixed by the first Velcro components 5, thus preventing the first pad 11 and the second pad 12 from separating. In another embodiment, the detachable connection mechanism further includes a second Velcro assembly 6 disposed on the other two symmetrical sides of the first pad 11 and the second pad 12, the second Velcro assembly 6 and the first Velcro assembly 5 being distributed alternately on the four sides of the first pad 11 and the second pad 12.

[0035] Specifically, the staggered distribution of the two second hook and loop fastener components 6 and the two first hook and loop fastener components 5 ensures that all four sides of the first cushion 11 and the second cushion 12 have a connecting structure, preventing mutual displacement between the first cushion 11 and the second cushion 12, which would affect the user's experience.

[0036] Preferably, the second Velcro assembly 6 includes a second bristle surface 61 disposed on both sides of the first pad 11 and a second pile surface 62 disposed on both sides of the second pad 12 and used in conjunction with the second bristle surface 61.

[0037] Specifically, the first pile surface 51 of the first Velcro assembly 5 is disposed on the side of the first pad 11 and the first barbed surface 52 is disposed on the side of the second pad 12, while the second pile surface 62 of the second Velcro assembly 6 is disposed on the side of the second pad 12 and the second barbed surface 61 is disposed on the side of the first pad 11. This allows the first barbed surface 52 to adhere to the first pile surface 51 and the second barbed surface 61 to the second pile surface 62 when the first pad 11 and the second pad 12 are combined, forming a bond that resists adhesive forces in two directions, similar to mutual interlocking, thereby improving the connection strength of the first pad 11 and the second pad 12 assemblies.

[0038] Both cushion one 11 and cushion two 12 consist of an inner liner and an outer liner, while the first Velcro assembly 5 and the second Velcro assembly 6 can be sewn onto the outer liner of cushion one 11 and cushion two 12.

[0039] In one embodiment, the cushion 11 is provided with a positioning groove 13 corresponding to the two heating elements 2 on the side facing the cushion 2, so as to prevent the heating element 2 from changing position between the cushion 11 and the cushion 2, which would affect the heating effect on the entire seat cushion.

[0040] In one embodiment, the four sides of the soft pad 11 facing the soft pad 2 12 are provided with positioning grooves 14, and the four sides of the soft pad 2 12 are provided with positioning strips 15 corresponding to the positioning grooves 14; this allows the soft pad 11 and the soft pad 2 12 to be aligned when combined, and further improves the positional stability between the soft pad 11 and the soft pad 2 12.

[0041] The positioning groove 13, the positioning groove 14, and the positioning strip 15 are all formed by molding.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heated seat cushion, characterized in that, Includes a seat cushion body (1), wherein at least two heating elements (2) are provided inside the seat cushion body (1), and the two heating elements (2) are laid flat inside the seat cushion body (1); It also includes a power cord (3) located outside the seat cushion body (1), one end of which extends into the seat cushion body (1) and is electrically connected to the heating element (2), and the other end of which is provided with a power connector (4), and the power connector (4) is provided with a temperature adjustment button (41). The seat cushion body (1) includes a soft cushion one (11) and a soft cushion two (12), the heating element (2) is located between the soft cushion one (11) and the soft cushion two (12), and a detachable connection mechanism is provided between the soft cushion one (11) and the soft cushion two (12). The detachable connection mechanism includes a first Velcro assembly (5) disposed on both sides of the first cushion (11) and the second cushion (12). The first Velcro assembly (5) includes a first pile surface (51) disposed on both sides of the first cushion (11) and a first barbed surface (52) disposed on both sides of the second cushion (12) and used in conjunction with the first pile surface (51). The two first Velcro assemblies (5) are symmetrically distributed. The detachable connection mechanism also includes a second Velcro assembly (6) disposed on the other two symmetrical sides of the first (11) and the second (12) of the pad, which is distributed alternately with the first Velcro assembly (5) on the four sides of the first (11) and the second (12); The second Velcro assembly (6) includes a second bristle surface (61) disposed on both sides of the first pad (11) and a second pile surface (62) disposed on both sides of the second pad (12) and used in conjunction with the second bristle surface (61). The first cushion (11) has positioning grooves (14) on all four sides facing the second cushion (12), and the second cushion (12) has positioning strips (15) on all four sides corresponding to the positioning grooves (14).

2. The heated seat cushion according to claim 1, characterized in that, The seat cushion body (1) is provided with an electrical connection line (21) that is electrically connected to two heating elements (2). The end of the electrical connection line (21) is provided with a connector (22). The power cord (3) is provided with an interface (31). The interface (31) of the power cord (3) extends into the seat cushion body (1) and is plugged into the connector (22).

3. The heated seat cushion according to claim 2, characterized in that, The soft pad one (11) is provided with a positioning groove (13) corresponding to the two heating elements (2) on the side facing the soft pad two (12).

4. The heated seat cushion according to claim 1, characterized in that, The heating element (2) is a rechargeable graphene heating element.

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