Electric heating back cushion neck pillow

Abstract

The utility model relates to the technical field of electric heating products, in particular to an electric heating back cushion neck pillow which comprises a neck pillow assembly, a back cushion assembly and a heating assembly. The first stranded wire type Teflon heating piece is fixedly installed in the back cushion assembly, the second stranded wire type Teflon heating piece is fixedly installed in the neck pillow assembly, and the NTC sensor and the TCO thermal protector are electrically connected to the first stranded wire type Teflon heating piece and the second stranded wire type Teflon heating piece. According to the utility model, the first stranded wire type Teflon heating sheet and the second stranded wire type Teflon heating sheet are respectively of a topological structure, and the snake-shaped wiring layout improves the heating uniformity and ensures the bending resistance of the heating sheets compared with the traditional linear arrangement; and meanwhile, the safety of the device in use can be improved by matching with a dual protection mechanism of NTC accurate temperature control and TCO overheating protection.

Description

Technical Field

[0001] This utility model relates to the field of electric heating products, and in particular to an electric heating backrest and neck pillow. Background Technology

[0002] A neck pillow or backrest is a home furnishing product designed to provide support for the neck and back. It combines the functions of a backrest and a neck pillow, aiming to provide users with better comfort and support when sitting or lying down.

[0003] An electrically heated neck pillow is a multifunctional home furnishing product that combines a cushion, neck pillow, and electric heating function. Through its built-in heating element, it provides heat to the neck, promoting blood circulation and relieving neck muscle tension and stiffness. Most electrically heated pillows have temperature adjustment functions, allowing users to choose a suitable temperature setting according to their personal preferences and physical condition.

[0004] Most electric heating backrests and neck pillows on the market use carbon fiber or metal wire heating elements. This heating method has problems such as uneven temperature distribution, easy damage when bent, and easy fire, resulting in a poor heating experience after wearing. Summary of the Invention

[0005] The purpose of this invention is to provide an electrically heated backrest and neck pillow, wherein the first and second stranded Teflon heating elements are both topologically structured. This serpentine wiring layout improves the uniformity of heating compared to the traditional straight-line arrangement, while also ensuring the bending resistance of the heating elements. At the same time, the dual protection mechanism of NTC precise temperature control and TCO overheat protection can improve the safety of the device during use, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electrically heated backrest neck pillow, comprising a neck pillow assembly, a backrest assembly, and a heating assembly, wherein the neck pillow assembly comprises a neck pillow fabric layer and a neck pillow inner fabric layer, and the neck pillow fabric layer is fitted and sewn onto the outside of the neck pillow inner fabric layer;

[0007] The pillow assembly includes a pillow fabric layer, a pillow inner fabric layer, and a battery pocket. The pillow fabric layer is sewn onto the outside of the pillow inner fabric layer, and a battery pocket is sewn onto the inside of the pillow inner fabric layer.

[0008] The heating assembly includes a battery removably installed inside the battery pocket, a switch fixedly installed on the top exterior of the neck pillow assembly, a first stranded Teflon heating element fixedly installed inside the backrest assembly, a second stranded Teflon heating element fixedly installed inside the neck pillow assembly, and an NTC sensor and a TCO thermal protector electrically connected to the first stranded Teflon heating element and the second stranded Teflon heating element.

[0009] Preferably, the neck pillow assembly and the backrest assembly are stitched together via a storage connection interface, and the neck pillow assembly and the backrest assembly are stored together via the storage connection interface.

[0010] Preferably, the bottom end of the neck pillow assembly is provided with a wearable component, which includes two elastic straps fixedly installed at the bottom end of the neck pillow fabric layer.

[0011] Preferably, each of the two elastic straps has multiple magnetic buckles fixed inside, and the elastic straps are magnetically connected.

[0012] Preferably, a zipper is sewn onto the outside of the storage connection interface.

[0013] Preferably, the switch is electrically connected to the battery, the first stranded Teflon heating element, and the second stranded Teflon heating element via wires. The first stranded Teflon heating element and the second stranded Teflon heating element are respectively embedded inside the backrest lining and the neck pillow lining. The neck pillow lining is also filled with filler. The second stranded Teflon heating element does not contact the filler.

[0014] Preferably, the switch is a three-level precise temperature control electric heating switch, mainly for controlling the temperature of resistive loads such as the first stranded Teflon heating element and the second stranded Teflon heating element.

[0015] Preferably, the switch has a TYPE-C interface on its lower side, and a breathing indicator light is embedded in the end face of the switch.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The first and second stranded Teflon heating elements of this invention are both topologically structured. This serpentine wiring layout improves the uniformity of heating compared to the traditional straight-line arrangement, while also ensuring the bending resistance of the heating elements. In addition, the dual protection mechanism of NTC precise temperature control and TCO overheat protection can improve the safety of the device during use. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram showing the structure of the neck pillow assembly and the backrest assembly of this utility model separated.

[0021] Figure 3 This is a schematic diagram of the circuit principle of this utility model;

[0022] Figure 4 This is a first style of switch and a schematic diagram of the switch logic of this utility model;

[0023] Figure 5 This is a schematic diagram of the second style of the switch and the switch logic structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Neck pillow assembly; 101. Neck pillow fabric layer; 102. Neck pillow inner lining layer; 2. Backrest assembly; 201. Backrest fabric layer; 202. Backrest inner lining layer; 203. Battery pocket; 3. Heating assembly; 301. Battery; 302. Switch; 303. First stranded Teflon heating element; 304. Second stranded Teflon heating element; 305. NTC sensor; 306. TCO thermal protector; 4. Wearable assembly; 401. Elastic strap; 402. Magnetic buckle; 5. Zipper; 6. Storage connection interface. Detailed Implementation

[0026] 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.

[0027] This utility model provides a technical solution:

[0028] Please see Figures 1 to 5 An electrically heated neck pillow includes a neck pillow assembly 1, a backrest assembly 2, and a heating assembly 3. The neck pillow assembly 1 includes a neck pillow fabric layer 101 and a neck pillow inner fabric layer 102, with the neck pillow fabric layer 101 sewn onto the outside of the neck pillow inner fabric layer 102. The backrest assembly 2 includes a backrest fabric layer 201, a backrest inner fabric layer 202, and a battery pocket 203, with the backrest fabric layer 201 sewn onto the outside of the backrest inner fabric layer 202, and the battery pocket 203 sewn onto the inside of the backrest inner fabric layer 202.

[0029] Heating assembly 3 includes a battery 301 removably installed inside the battery pocket 203, a switch 302 fixedly installed on the top exterior of the neck pillow assembly 1, a first stranded-wire Teflon heating element 303 fixedly installed inside the backrest assembly 2, a second stranded-wire Teflon heating element 304 fixedly installed inside the neck pillow assembly 1, and an NTC sensor 305 and a TCO thermal protector electrically connected to the first stranded-wire Teflon heating element 303 and the second stranded-wire Teflon heating element 304. The protector 306, switch 302, battery 301, first stranded Teflon heating element 303, and second stranded Teflon heating element 304 are all electrically connected by wires. The first stranded Teflon heating element 303 and the second stranded Teflon heating element 304 are respectively embedded in the backrest lining layer 202 and the neck pillow lining layer 102. The neck pillow lining layer 102 is also filled with a filling material, which can be feather cotton. The second stranded Teflon heating element 304 does not come into contact with the filling material. Switch 302 is a three-level precise temperature control electric heating switch, mainly for controlling the temperature of resistive loads such as the first stranded-wire Teflon heating element 303 and the second stranded-wire Teflon heating element 304. The Teflon heating element can be controlled by one switch for two heating elements, or one switch for one or more heating elements. Teflon heating elements can also be used in other products such as cushions, scarves, shoulder pads, shoes, and seat cushions. A TYPE-C interface is provided on the lower side of switch 302, and an indicator breathing light is embedded in the end face of switch 302.

[0030] By adopting the above technical solution, the neck pillow assembly 1 is made by sewing together a neck pillow fabric layer 101 and a neck pillow inner fabric layer 102. The inner fabric layer 102 is sewn with a second twisted Teflon heating element 304 to fix the second twisted Teflon heating element 304. Similarly, the backrest assembly 2 is made by sewing together a backrest fabric layer 201 and a backrest inner fabric layer 202. The inner fabric layer 202 is sewn with a first twisted Teflon heating element 303 to fix the first twisted Teflon heating element 303. A battery pocket 203 is sewn inside the inner fabric layer 202. The opening of the battery pocket 203 is provided with a fixing zipper. The fixing zipper is used to fix the battery 301 inside the battery pocket 203, and the battery 301 inside can be disassembled, replaced and maintained by opening and closing the fixing zipper.

[0031] The first stranded-wire Teflon heating element 303 and the second stranded-wire Teflon heating element 304 are both designed with a serpentine wiring layout. This layout improves heating uniformity compared to traditional straight-line arrangements while also ensuring the heating element's resistance to bending. The heating assembly 3 features NTC precise temperature control and TCO overheat protection, embedded in the heating element, providing a dual protection mechanism. The TCO and NTC work in tandem; for example, the NTC adjusts power in real time, and the TCO melts when the NTC fails. When the user turns on the heating, the NTC sensor 305 monitors the temperature once per second and uses PWM to adjust the current to stabilize the temperature at the set value of 40-75℃±1℃. If a circuit malfunction causes the temperature to exceed 80℃, the TCO melts and cuts off the power.

[0032] Switch 302 is a three-level precise temperature control switch for electric heating, primarily designed for temperature control of resistive loads such as heating elements. Three heating modes are available for users to choose from. Press and hold switch 302 for 3 seconds to activate the product. The default setting is the highest temperature level, set to 70 degrees Celsius, indicated by a red indicator light. A short press again activates the medium temperature level, set to 60 degrees Celsius, indicated by a yellow indicator light. Another short press activates the low temperature level, set to 50 degrees Celsius, indicated by a blue indicator light. This product is equipped with an NTC temperature sensor for precise temperature control. The controller only controls the temperature at the sampling point; the actual temperature depends on the heating element's heating method and heat dissipation mechanism. Specific adjustments require testing in a predetermined environment after assembly. The machine automatically shuts down after 90 minutes of operation, regardless of whether any temperature settings are changed. Switch 302 is available in two styles, such as... Figure 4 and Figure 5 .

[0033] Switch 302 has a TYPE-C interface on its lower side, allowing direct charging of the product after connecting the power cord. The indicator light on switch 302 turns off when fully charged. Connecting the power cord while the product is powered on enables operation. The switch logic for power-on and power-off states is as follows: Press and hold for three seconds for high temperature (red), short press for medium temperature (yellow), short press for low temperature (blue), and short press for high temperature (red). Press and hold for three seconds to power off. The three indicator lights on switch 302 automatically display the battery 301 charge level: three bars for 100-75%, two bars for 75-50%, one bar for 49-25%, and one flashing light for below 24%. The style and logic of switch 302 are as follows. Figure 4 and Figure 5 .

[0034] The indicator light in switch 302, when connected to a charging power source, displays a rapid cycle of LEDs from low to high charge (cycle: LED1 on → LED1, LED2 on → ... all on), then enters a flashing state indicating the current charge level. When no CELL is detected, all LEDs are fully lit. 3.3.2. After disconnecting the charging power, the charge indicator LED turns off within 1 second at the current charge level (no DC output): Press the charge detection button to restart the output. In charging mode, the charge detection button has no function; USB output is non-existent. 3.3.4. In non-charging mode, pressing the charge detection button to turn on the output: The output synchronously detects whether the load is less than 80mA. If it is less than 80mA, the charge indicator LED lights up for 5 seconds and then automatically turns off, and the output is maintained for 30 seconds before turning off. If it is greater than 80mA, the output will be maintained continuously (the charge indicator LED should remain constantly lit) until the load is disconnected or the CELL voltage drops below 3.0V. When the load is normally disconnected, the charge indicator LED lights up for 5 seconds and then automatically turns off, and the output is maintained for 30 seconds before turning off.

[0035] Specifically, such as Figures 1 to 2 As shown, the neck pillow assembly 1 and the backrest assembly 2 are sewn together through a storage connection interface 6, and the neck pillow assembly 1 and the backrest assembly 2 are stored together through the storage connection interface 6. A zipper 5 is sewn on the outside of the storage connection interface 6. A wearable component 4 is provided at the bottom of the neck pillow assembly 1. The wearable component 4 includes two elastic straps 401 fixedly installed at the bottom of the neck pillow fabric layer 101. Multiple magnetic buckles 402 are fixed inside the two elastic straps 401, and the elastic straps 401 are magnetically connected to each other.

[0036] By adopting the above technical solution, the zipper 5 is located on the neck pillow assembly 1 and the backrest assembly 2. The zipper 5 has two pulls, one in the front and one in the back. When the neck pillow is converted into a backrest, one pull is opened, and vice versa. The zipper 5 of the neck pillow is opened, and the backrest assembly 2 can be taken out. Then, the neck pillow and its filling cotton are stuffed into the backrest assembly 2 to form the inner cushion. Then, closing the zipper 5 turns it into a backrest. Conversely, in the backrest state, opening the zipper 5, taking out the neck pillow assembly 1, and stuffing the backrest assembly 2 and its filling cotton into the neck pillow are used as filling. Then, closing the zipper 5 turns it into a neck pillow. This taking and putting is done through the storage connection interface 6, which is formed by opening the zipper 5. The user can put the device around their neck and bind it with two elastic straps 401. It can also be fixed by the magnetic snap 402, thus ensuring the convenience and comfort of wearing it.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrically heated neck pillow, comprising a neck pillow assembly (1), a backrest assembly (2), and a heating assembly (3), characterized in that: The neck pillow assembly (1) includes a neck pillow fabric layer (101) and a neck pillow inner fabric layer (102), wherein the neck pillow fabric layer (101) is fitted and sewn onto the outside of the neck pillow inner fabric layer (102); The pillow assembly (2) includes a pillow fabric layer (201), a pillow inner fabric layer (202), and a battery pocket (203). The pillow fabric layer (201) is sewn onto the outside of the pillow inner fabric layer (202), and the battery pocket (203) is sewn into the inside of the pillow inner fabric layer (202). The heating assembly (3) includes a battery (301) removably installed inside a battery pocket (203), a switch (302) fixedly installed on the outside of the top of the neck pillow assembly (1), a first stranded Teflon heating element (303) fixedly installed inside the pillow assembly (2), a second stranded Teflon heating element (304) fixedly installed inside the neck pillow assembly (1), and an NTC sensor (305) and a TCO thermal protector (306) electrically connected to the first stranded Teflon heating element (303) and the second stranded Teflon heating element (304).

2. The electrically heated neck pillow according to claim 1, characterized in that: The neck pillow assembly (1) and the backrest assembly (2) are stitched together through a storage connection interface (6), and the neck pillow assembly (1) and the backrest assembly (2) are stored together through the storage connection interface (6).

3. The electrically heated neck pillow according to claim 1, characterized in that: The neck pillow assembly (1) is provided with a wearable assembly (4) at the bottom end, and the wearable assembly (4) includes two elastic straps (401) fixedly installed at the bottom end of the neck pillow fabric layer (101).

4. The electrically heated neck pillow according to claim 3, characterized in that: Each of the two elastic straps (401) has multiple magnetic buckles (402) fixed inside, and the elastic straps (401) are connected by magnetic snaps.

5. The electrically heated neck pillow according to claim 2, characterized in that: The storage connection interface (6) is sewn with a zipper (5) on the outside.

6. The electrically heated neck pillow according to claim 5, characterized in that: The switch (302) is electrically connected to the battery (301), the first stranded Teflon heating element (303), and the second stranded Teflon heating element (304) via wires. The first stranded Teflon heating element (303) and the second stranded Teflon heating element (304) are respectively embedded in the backrest lining layer (202) and the neck pillow lining layer (102). The neck pillow lining layer (102) is also filled with filler. The second stranded Teflon heating element (304) does not contact the filler.

7. The electrically heated neck pillow according to claim 1, characterized in that: The switch (302) is a three-level precise temperature control electric heating switch, mainly for controlling the temperature of the resistive load of the first stranded Teflon heating element (303) and the second stranded Teflon heating element (304).

8. The electrically heated neck pillow according to claim 7, characterized in that: The switch (302) has a TYPE-C interface on its lower side, and a breathing light is embedded in the end face of the switch (302).

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