Portable heating blanket

Abstract

The utility model relates to the technical field of heating blanket preparation, in particular to a portable heating blanket. A portable heating blanket comprises self-temperature-limiting heating cloth, and the upper surface and the lower surface of the self-temperature-limiting heating cloth are respectively provided with a non-woven fabric heat preservation layer in a composite mode. The self-temperature-limiting heating cloth and the non-woven fabric heat preservation layer form a self-temperature-limiting heating assembly. The self-temperature-limiting heating assembly is detachably connected to the velvet cloth bag; a graphene anion cloth bag is detachably connected into the velvet cloth bag; a self-temperature-limiting heating wire is arranged in the self-temperature-limiting heating cloth; the non-woven fabric thermal insulation layer is provided with a coupler; the coupler and the self-temperature-limiting heating wire form a current loop; and a power supply connecting piece is inserted into the coupler. The self-temperature-limiting heating wire is good in bending resistance and bending resistance, and the portable heating blanket is endowed with excellent safe use performance; and the graphene anion cloth bag can play a role in preventing electromagnetic radiation, so that the harm of electromagnetic radiation is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating blanket preparation, in particular to a portable heating blanket. BACKGROUND

[0002] Electric heating blankets are usually divided into bed electric heating blankets and portable electric heating blankets according to the use scene. The existing portable electric heating blanket is generally composed of an outer blanket fabric, a heating mesh, a power cord and other components. The working principle is that the current passes through the wire to convert electrical energy into heat. The common heating mesh is composed of a fiberglass mesh and an electric heating wire. The electric heating wire is arranged in a serpentine shape in the fiberglass mesh to form a relatively uniform heating network, so that the heating of the heating mesh is relatively uniform.

[0003] With the improvement of living standards, the conventional electric heating blanket with the electric heating wire heating mode has the following defects: electromagnetic radiation may occur during use, which may cause body function disorder and affect sleep quality; the bending resistance is poor, and the electric leakage safety problem is prone to occur, so that it cannot meet the needs of consumers. Therefore, the present application provides a portable heating blanket to meet the needs of consumers. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of electromagnetic radiation hazard and poor bending resistance of the conventional electric heating blanket with the electric heating wire heating mode, the present application provides a portable heating blanket with a heating mesh formed by a self-limiting temperature heating wire as a core electric heating component.

[0005] The portable heating blanket provided by the present application is realized by the following technical solutions:

[0006] A portable heating blanket includes a self-limiting temperature heating cloth, and a non-woven fabric heat preservation layer is compounded on the upper and lower surfaces of the self-limiting temperature heating cloth. The self-limiting temperature heating cloth and the non-woven fabric heat preservation layer form a self-limiting temperature heating assembly. The self-limiting temperature heating assembly is detachably connected to a silk cloth bag. A graphene negative ion cloth bag is detachably connected in the silk cloth bag. A self-limiting temperature heating wire is arranged in the self-limiting temperature heating cloth. The non-woven fabric heat preservation layer is provided with a coupler. The coupler and the self-limiting temperature heating wire form a current loop. The coupler is plugged with a power connection piece.

[0007] The self-limiting temperature heating wire in the present application has good bending resistance, which gives the heating blanket good safe use performance. The graphene negative ion cloth bag can play a role in preventing electromagnetic radiation, effectively reducing the harm of electromagnetic radiation.

[0008] Preferably, the coupler is a four-head directional coupler. A temperature sensor is arranged in the self-limiting temperature heating cloth. The temperature sensor and two heads of the four-head directional coupler form a current loop. The self-limiting temperature heating wire and the other two heads of the four-head directional coupler form a current loop.

[0009] Preferably, the power connection comprises a power plug, a temperature controller and a coupler connection plug, one end of the temperature controller is communicated with the power plug through a power line, and the other end of the temperature controller is communicated with the coupler connection plug through a power line, and the display panel of the temperature controller can be directly observed to read the real-time heating temperature of the self-limiting heating cloth.

[0010] By adopting the above technical scheme, the temperature of the portable heating blanket can be conveniently controlled and adjusted, the temperature control requirements of consumers for the portable heating blanket are met, the personalized use comfort performance is improved, and the product competitiveness is improved.

[0011] Preferably, the power connection is a power adapter assembly, the input voltage is 100-240VAC, and the output voltage is 36-72VDC; and the rated heating voltage of the self-limiting heating cloth is selected in the range of 36-72V.

[0012] By adopting the above technical scheme, the power adapter assembly is used as the power connection, and the self-limiting function of the self-limiting heating wire is used as the use safety performance guarantee of the heating blanket, and the production cost is relatively low.

[0013] Preferably, one end of the velvet cloth bag is open, and a zipper is fixedly connected at the opening of the velvet cloth bag, and the opening of the velvet cloth bag is opened and closed through the zipper, so that the graphene anion cloth bag is conveniently disassembled and assembled.

[0014] Preferably, one end of the graphene anion cloth bag is open, and a zipper is fixedly connected at the opening of the graphene anion cloth bag, and the opening of the graphene anion cloth bag is opened and closed through the zipper, so that the self-limiting heating assembly is conveniently disassembled and assembled.

[0015] By adopting the above technical scheme, the portable heating blanket can be conveniently disassembled, assembled and maintained as a whole.

[0016] Preferably, the non-woven fabric heat preservation layer comprises a first polyester non-woven fabric heat preservation layer, a graphene non-woven fabric layer with electromagnetic radiation prevention, and a second polyester non-woven fabric heat preservation layer, the graphene non-woven fabric layer with electromagnetic radiation prevention is compounded between the first polyester non-woven fabric heat preservation layer and the second polyester non-woven fabric heat preservation layer, and can play a role in isolating electromagnetic radiation, thereby improving the use comfort of the portable heating blanket.

[0017] Preferably, the self-limiting heating cloth comprises a warp-weft woven cloth and a coating layer, the coating layer is an insulating silica gel film, the coating layer is compounded on the upper and lower surfaces of the warp-weft woven cloth, a plurality of self-limiting heating wires are woven in the warp-weft woven cloth, the self-limiting heating wires are parallel to the weft in the warp-weft woven cloth, and the line resistance of the self-limiting heating wire is 400-50000Ω*m measured at 10℃.

[0018] The first flexible conductive strip is in contact with the first flexible conductive strip in the self-limiting temperature heating line; the first flexible conductive strip is parallel to the warp in the warp-weft woven cloth;

[0019] Two second flexible conductive strips are woven in the warp-weft woven cloth; the second flexible conductive strip is parallel to the weft in the warp-weft woven cloth, and the two second flexible conductive strips are respectively located on the two end sides close to the weft direction of the warp-weft woven cloth; the power supply connecting piece, the coupler, the self-limiting temperature heating line, the first flexible conductive strip, and the second flexible conductive strip are connected to form a current return.

[0020] Preferably, the first flexible conductive strip is composed of a plurality of flexible conductive wires A arranged in parallel; the flexible conductive wire A is twisted from carbon fiber wire and zinc-plated copper wire.

[0021] Preferably, the second flexible conductive strip is composed of a plurality of flexible conductive wires B arranged in parallel; the flexible conductive wire B is twisted from carbon fiber wire and zinc-plated copper wire.

[0022] By adopting the above technical scheme, the overall bending resistance of the self-limiting temperature heating cloth can be improved, the safe use performance of the portable heating blanket can be further improved, and the market competitiveness of the product can be improved.

[0023] In summary, the present application has the following advantages:

[0024] 1. The self-limiting temperature heating line in the present application has good bending resistance, which gives the heating blanket good safe use performance; and the graphene negative ion cloth bag can prevent electromagnetic radiation and effectively reduce the harm of electromagnetic radiation.

[0025] 2. The four-head directional coupler, the temperature controller, and the temperature sensor used in the present application can facilitate temperature control adjustment of the portable heating blanket, meet the temperature regulation needs of consumers for the portable heating blanket, improve the personalized use comfort performance, and thus improve the market competitiveness of the product.

[0026] 3. The first flexible conductive strip and the second flexible conductive strip in the self-limiting temperature heating cloth are designed to be flexible and optimized, and the flexible conductive strip is twisted from carbon fiber wire and zinc-plated copper wire, which can improve the overall bending resistance of the self-limiting temperature heating cloth and further improve the safe use performance of the portable heating blanket. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the portable heating blanket in the embodiment 1 of the present application.

[0028] Figure 2 is the overall structure schematic diagram of the self-limiting temperature heating cloth in the embodiment 1 of the present application.

[0029] Figure 3 is the overall structure schematic diagram of the self-limiting temperature heating cloth in the embodiment 2 of the present application.

[0030] Figure 4 is the overall structure schematic diagram of the portable heating blanket in the embodiment 3 of the present application.

[0031] In the figure, 1, self-limiting temperature heating cloth; 100, self-limiting temperature heating assembly; 10, self-limiting temperature heating wire; 11, warp and weft woven cloth; 12, laminated layer; 13, first flexible conductive strip; 14, second flexible conductive strip; 141, second flexible conductive strip A; 142, second flexible conductive strip B; 1421, second flexible conductive strip B1; 1422, second flexible conductive strip B2; 2, non-woven fabric heat preservation layer; 21, coupler; 211, first polyester non-woven fabric heat preservation layer; 212, graphene non-woven fabric layer with anti-electromagnetic radiation; 213, second polyester non-woven fabric heat preservation layer; 22, power connection piece; 221, power plug; 222, temperature controller; 223, coupler connection plug; 23, temperature sensor; 3, graphene anion cloth bag; 4, velvet cloth bag; 5, electric wire connection port; 6, power adapter; 61, first electric wire; 62, second electric wire. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in combination with the drawings and embodiments. EMBODIMENT

[0033] Embodiment 1, refer to Figure 1 and Figure 2 A portable heating blanket, comprising a self-limiting temperature heating cloth 1, a non-woven fabric heat preservation layer 2, a graphene anion cloth bag 3 and a velvet cloth bag 4. The non-woven fabric heat preservation layer 2 is compounded on the upper and lower surfaces of the self-limiting temperature heating cloth 1. The self-limiting temperature heating cloth 1 and the non-woven fabric heat preservation layer 2 constitute a self-limiting temperature heating assembly 10. The self-limiting temperature heating assembly 10 is detachably connected to the velvet cloth bag 4, the graphene anion cloth bag 3 is detachably connected in the velvet cloth bag 4, and the self-limiting temperature heating assembly 10 is placed in the graphene anion cloth bag 3. The self-limiting temperature heating cloth 1 is provided with a self-limiting temperature heating wire 10, and the non-woven fabric heat preservation layer 2 is fixedly connected with a coupler 21 constituting a current loop with the self-limiting temperature heating wire 10. The coupler 21 is plugged with a power connection piece 22. When the power connection piece 22 is connected to the power supply, the power supply, the power connection piece 22, the self-limiting temperature heating wire 10 and the coupler 21 constitute a current loop, the self-limiting temperature heating wire 10 is electrically heated to release heat, infrared and far infrared, which realizes the purpose of heating and keeping warm. The graphene anion cloth bag can play the role of anti-electromagnetic radiation, effectively reduce the harm of electromagnetic radiation, and the self-limiting temperature heating assembly 10 ensures the overall safety performance.

[0034] Refer to Figure 1The power connection piece 22 comprises a power plug 221, a temperature controller 222 and a coupler connection plug 223. One end of the temperature controller 222 is connected to the power plug 221 through a power line, and the other end of the temperature controller 222 is connected to the coupler connection plug 223 through a power line. The display panel of the temperature controller 222 can be directly observed and read to obtain the real-time heating temperature of the self-limiting temperature heating cloth 1.

[0035] Preferably, referring to Figure 1 The self-limiting temperature heating cloth 1 is provided with a temperature sensor 23. The coupler 21 is a four-head directional coupler. The power supply, the power connection piece 22 and the temperature sensor 23 form a current loop with two heads of the four-head directional coupler, and the power supply, the power connection piece 22 and the self-limiting temperature heating wire 10 form a current loop with the other two heads of the four-head directional coupler.

[0036] The graphene negative ion cloth bag 3 has an open end, and a zipper is fixedly connected to the open end of the graphene negative ion cloth bag 3. The opening of the graphene negative ion cloth bag 3 is opened and closed through the zipper, which facilitates the disassembly and assembly of the self-limiting temperature heating assembly 10. The silk cloth bag 4 has an open end, and a zipper is fixedly connected to the open end of the silk cloth bag 4. The opening of the silk cloth bag 4 is opened and closed through the zipper, which facilitates the disassembly and assembly of the graphene negative ion cloth bag 3.

[0037] Preferably, referring to Figure 1 The self-limiting temperature heating cloth 1 comprises a warp-weft woven cloth 11 and a lamination layer 12 laminated on the upper and lower surfaces of the warp-weft woven cloth 11. The lamination layer 12 is an insulating silica gel film. The insulating silica gel film is made of insulating silica gel resin. If there is a requirement for thermal conductivity, commercially available insulating and heat-conducting silica gel resin can be used.

[0038] The self-limiting temperature heating wires 10 woven in the warp-weft woven cloth 11 are parallel to the weft lines in the warp-weft woven cloth 11. The wire resistance of the self-limiting temperature heating wire 10 is 400-50000 Ω*m at 10°C. According to the actual size of the portable heating blanket, the wire resistance is preferably 8000-10000 Ω*m. The effective heating length of the self-limiting temperature heating wire 10 in the self-limiting temperature heating cloth 1 is 3-10 cm, and is preferably 8 cm. The power of a single section of the self-limiting temperature heating wire 10 is 6.0-7.6 W at a rated voltage of 220 V.

[0039] Preferably, referring to Figure 2, the first flexible conductive strip 13 is in contact with the self-limiting temperature heating wire 10 and the warp of the warp and weft woven cloth 11. The first flexible conductive strip 13 is composed of a plurality of flexible conductive wires A arranged in parallel. The flexible conductive wire A is twisted from two Toray 1K carbon fiber wires and three zinc-plated copper wires with a diameter of 0.2 mm. The first flexible conductive strip 13 is an even number. The number of the first flexible conductive strip 13 is designed according to the heating power and the overall width of the electric heating pad product.

[0040] Referring to Figure 2 , the warp and weft woven cloth 11 is woven with two second flexible conductive strips 14. The second flexible conductive strip 14 is composed of a plurality of flexible conductive wires B arranged in parallel. The flexible conductive wire B is twisted from two Toray 1K carbon fiber wires and three zinc-plated copper wires with a diameter of 0.2 mm.

[0041] Referring to Figure 2 , the two second flexible conductive strips 14 are the second flexible conductive strip A 141 and the second flexible conductive strip B 142. The first flexible conductive strips 13 are marked as 1, 2, 3, …, n, and n is an even number. The first flexible conductive strip 13 with the mark 1 is in contact with the second flexible conductive strip A 141 at one end and the second flexible conductive strip B 142 at the other end, and the first flexible conductive strip 13 with the mark 1 is in contact with the self-limiting temperature heating wire 10.

[0042] Referring to Figure 2 , the first flexible conductive strips 13 with even numbers are in contact with the second flexible conductive strip B 142 at one end and not in contact with the second flexible conductive strip A 141 at the other end. That is, the first flexible conductive strips 13 with even numbers have a break A. The vertical projection of the break A is located in the area between the second flexible conductive strip A 141 and the self-limiting temperature heating wire 10 adjacent to the second flexible conductive strip A 141, but the first flexible conductive strips 13 with even numbers are in contact with the self-limiting temperature heating wire 10.

[0043] Referring to Figure 2, the first flexible conductive strips 13 with odd numbers other than 1 are connected to the second flexible conductive strip A 141 at one end and not connected to the second flexible conductive strip B 142 at the other end, that is, the first flexible conductive strips 13 with odd numbers other than 1 are formed with a break B, the vertical projection of the break B is located in the area between the second flexible conductive strip B 142 and the self-limiting heating wire 10 adjacent to the second flexible conductive strip B 142, but the first flexible conductive strips 13 with odd numbers other than 1 are both in contact with the self-limiting heating wire 10.

[0044] Referring to Figure 2 , the second flexible conductive strip B 142 is cut to form the wire connection port 5, and the second flexible conductive strip B 142 is divided into the second flexible conductive strip B 1 1421 and the second flexible conductive strip B 2 1422. The second flexible conductive strip B 1 1421 is not in communication with the second flexible conductive strip B 2 1422. The second flexible conductive strip B 1 1421 is in contact with the first flexible conductive strip 13 with number 1 among the first flexible conductive strips 13. The second flexible conductive strip B 2 1422 is in contact with the first flexible conductive strips 13 with numbers 2, 3, …, n among the first flexible conductive strips 13, and not in contact with the first flexible conductive strip 13 with number 1 among the first flexible conductive strips 13. The second flexible conductive strip B 1 1421 and the second flexible conductive strip B 2 1422 are respectively fixedly connected to two of the four-head directional coupler through copper wires, and the access ends of the copper wires are the wire connection port 5. The PVC-encased copper wire connected to the temperature sensor 23 is arranged through the warp-weft woven cloth 11 to fix the temperature sensor 23 to the warp-weft woven cloth 11, and the two ends of the PVC-encased copper wire are respectively fixedly connected to the other two of the four-head directional coupler.

[0045] Referring to Figure 2 , the second flexible conductive strips 14 are parallel to the weft of the warp-weft woven cloth 11, and the two second flexible conductive strips 14 are respectively located near the two ends of the warp-weft woven cloth 11 in the weft direction. The power supply connecting piece 22, the coupler 21, the self-limiting heating wire 10, the first flexible conductive strip 13, and the second flexible conductive strip 14 form a current return through electrification.

[0046] The difference between Example 2 and Example 1 is that referring to Figure 3 , the power supply connecting piece 22 is a power adapter assembly, the input voltage is 100-240VAC, the output voltage is 36-72VDC, and the rated heating voltage of the self-limiting heating cloth 1 is selected in the range of 36-72V. And the self-limiting heating cloth 1 is not provided with a temperature sensor 23.

[0047] The power adapter assembly includes a first wire 61 connected to the second conductive strip B11421, a second wire 62 connected to the second flexible conductive strip B21422, and a power adapter 6. The first wire 61 connected to the second flexible conductive strip B11421 and the second wire 62 connected to the second flexible conductive strip B21422 are both connected to the power adapter 6. The connector of the power adapter 6 is connected to 220 VAC (China) or 110 VAC (USA, Japan) household electricity and outputs 36-72VDC to power the self-limiting heating cloth 1 for electric heating.

[0048] Through the optimized design of the above-mentioned circuit structure, the current return is achieved by energizing the power adapter assembly, the self-limiting heating wire 10, the first flexible conductive strip 13, and the second flexible conductive strip 14. This allows the self-limiting heating wire 10 located between adjacent first flexible conductive strips 13 to be energized, generating heat through the thermal effect of the current and releasing infrared and far-infrared rays to achieve heating and warmth, while also ensuring good safety in use.

[0049] The difference between Example 3 and Example 1 is as follows: (Refer to...) Figure 4 The non-woven insulation layer 2 includes a first polyester non-woven insulation layer 211, a graphene non-woven insulation layer 212 with electromagnetic radiation protection, and a second polyester non-woven insulation layer 213. The graphene non-woven insulation layer 212 with electromagnetic radiation protection is composited between the first polyester non-woven insulation layer 211 and the second polyester non-woven insulation layer 213, which can isolate electromagnetic radiation and improve the comfort of using the portable heating blanket.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable heating blanket characterized by: The self-limiting heating cloth (1) is provided with a non-woven fabric heat preservation layer (2) on the upper and lower surfaces; the self-limiting heating cloth (1) and the non-woven fabric heat preservation layer (2) form a self-limiting heating assembly (100); the self-limiting heating assembly (100) is detachably connected to a velvet cloth bag (4); the velvet cloth bag (4) is detachably connected with a graphene anion cloth bag (3); the self-limiting heating cloth (1) is provided with a self-limiting heating wire (10); the non-woven fabric heat preservation layer (2) is provided with a coupler (21); the coupler (21) and the self-limiting heating wire (10) form a current loop; and the coupler (21) is plugged with a power supply connecting piece (22).

2. A portable heating blanket according to claim 1, wherein: The coupler (21) is a four-head directional coupler; the self-limiting heating cloth (1) is provided with a temperature sensor (23); the temperature sensor (23) and two heads of the four-head directional coupler form a current loop; and the self-limiting heating wire (10) and the other two heads of the four-head directional coupler form a current loop.

3. A portable heating blanket according to claim 2, wherein: The power supply connecting piece (22) comprises a power supply plug (221), a temperature controller (222) and a coupler connecting plug (223); one end of the temperature controller (222) is connected to the power supply plug (221) through a power supply line, and the other end of the temperature controller (222) is connected to the coupler connecting plug (223) through a power supply line; and the display panel of the temperature controller (222) can directly observe and read the real-time heating temperature of the self-limiting heating cloth (1).

4. The portable heating blanket of claim 1, wherein: The power supply connecting piece (22) is a power adapter assembly, the input voltage is 100-240VAC, and the output voltage is 36-72VDC; and the rated heating voltage of the self-limiting heating cloth (1) is selected in the range of 36-72V.

5. The portable heating blanket of claim 1, wherein: The velvet cloth bag (4) is provided with an opening at one end, and a zipper is fixedly connected to the opening of the velvet cloth bag (4); the opening of the velvet cloth bag (4) is opened and closed through the zipper, so as to facilitate the disassembly and assembly of the graphene anion cloth bag (3).

6. A portable heating blanket according to claim 5, wherein: The graphene anion cloth bag (3) is provided with an opening at one end, and a zipper is fixedly connected to the opening of the graphene anion cloth bag (3); the opening of the graphene anion cloth bag (3) is opened and closed through the zipper, so as to facilitate the disassembly and assembly of the self-limiting heating assembly (100).

7. The portable heating blanket of claim 1, wherein: The non-woven fabric heat preservation layer (2) comprises a first polyester non-woven fabric heat preservation layer (211), a graphene non-woven fabric layer (212) having electromagnetic radiation resistance and a second polyester non-woven fabric heat preservation layer (213); the graphene non-woven fabric layer (212) having electromagnetic radiation resistance is compounded between the first polyester non-woven fabric heat preservation layer (211) and the second polyester non-woven fabric heat preservation layer (213), so as to isolate electromagnetic radiation and improve the use comfort of the portable heating blanket.

8. The portable heating blanket of claim 1, wherein: The self-limiting temperature heating cloth (1) comprises a warp and weft woven cloth (11) and a film layer (12), the film layer (12) is an insulating silica gel film; the film layer (12) is compounded on the upper and lower surfaces of the warp and weft woven cloth (11); a plurality of self-limiting temperature heating wires (10) are woven in the warp and weft woven cloth (11); the self-limiting temperature heating wires (10) are parallel to the weft in the warp and weft woven cloth (11); the wire resistance of the self-limiting temperature heating wires (10) is 400-50000 Ω*m measured at 10 ℃; A plurality of first flexible conductive strips (13) in contact with the self-limiting temperature heating wires (10) are woven in the warp and weft woven cloth (11); the first flexible conductive strips (13) are parallel to the warp in the warp and weft woven cloth (11); Two second flexible conductive strips (14) are woven in the warp and weft woven cloth (11); the second flexible conductive strips (14) are parallel to the weft in the warp and weft woven cloth (11), and the two second flexible conductive strips (14) are respectively located on the two end sides close to the weft direction of the warp and weft woven cloth (11); the power supply connecting piece (22), the coupler (21), the self-limiting temperature heating wires (10), the first flexible conductive strips (13), the second flexible conductive strips (14) form a current return through power supply.

9. A portable heating blanket according to claim 8, wherein: The first flexible conductive strips (13) are composed of a plurality of flexible conductive wires A arranged in parallel; the flexible conductive wires A are twisted from carbon fiber wires and galvanized copper wires.

10. The portable heating blanket of claim 8, wherein: The second flexible conductive strips (14) are composed of a plurality of flexible conductive wires B arranged in parallel; the flexible conductive wires B are twisted from carbon fiber wires and galvanized copper wires.

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