Pressure-sensitive electric blanket

Abstract

The utility model relates to the technical field of electric blankets, in particular to a pressure-sensitive electric blanket, which is characterized in that a sealing block is fixedly connected to the outer wall of a fixed seat, automatic switches are fixedly mounted in a plurality of connecting wires, a plurality of heating elements are fixedly mounted on the inner side of an electric blanket main body, and the automatic switches are fixedly mounted on the outer wall of the fixed seat. The ends of the multiple heating elements are fixedly connected with a connecting line, the interiors of the multiple heating elements fixedly communicate with heat-proof blocks, and pressure sensors are fixedly installed at the top ends of the multiple heat-proof blocks. According to the pressure-sensitive electric blanket, the connecting wire is connected with the heating element through a plurality of automatic switches, at the moment, the heating element is not electrified and does not emit heat, and only when a person lies above the electric blanket, the pressure sensor can receive a pressure signal; when a human body touches which part of the pressure sensor, the automatic switch at the end part of the corresponding heating element is started, so that the electric blanket saves a lot of electric energy and useless heat loss, and the use cost of the pressure-sensitive electric blanket is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric blankets, in particular to a pressure-sensitive electric blanket. Background Art

[0002] Electric blanket, also known as electric mattress, is a contact electric heating device. It weaves or sews a special soft cable electric heating element with standard insulation performance into the blanket in a snake-like shape, and emits heat when powered on. Electric blankets are mainly used to increase the temperature in the bed when people sleep to achieve the purpose of heating. At the same time, electric blankets can also be used to remove moisture from bedding. Electric blankets consume less power, have adjustable temperature, are easy to use, and are widely used. They have a history of more than 100 years.

[0003] For example, the authorization announcement number "CN219248095U" is named a pressure-sensitive electric blanket. Although a comfort piece is provided at the bottom of the moisture-proof pad, the rubber airbag on the comfort piece improves the comfort performance of the electric blanket, and a limiting piece is provided on the moisture-proof pad. The limiting piece can limit the connection plate, so that the rubber airbag can be stably installed and can be quickly disassembled when not needed, thereby improving the practicality of the device. However, there is still a problem that the existing pressure-sensitive electric blanket uses the method that the electric blanket will start when the weight of the human body is pressed on it. When the user lies on the pressure-sensitive electric blanket, the blanket will be powered on and generate heat. However, the heat of the pressure-sensitive electric blanket is overall. That is to say, no matter how much area the user lies on the pressure-sensitive electric blanket, the pressure-sensitive electric blanket will generate heat as a whole. However, the area occupied by the human body is limited, so the pressure-sensitive electric blanket that is not in contact with the human body will also be powered on and generate heat. However, this causes the heat from the areas where the user has not lay down to be wasted and not effectively utilized. Therefore, the existing pressure-sensitive electric blankets waste energy and have the problem of high usage costs.

[0004] At the same time, the existing pressure-sensitive electric blankets can be heated to a certain temperature in a short time after being powered on, so they are generally not used in direct contact with the human body. It is necessary to put a certain amount of bedding or blanket above or below the pressure-sensitive electric blanket before use. This makes the pressure-sensitive electric blanket directly sandwiched between two layers of different bed sheets. As the user moves and rolls on the bed, the electric blanket is easy to move or fold, which greatly reduces the use effect of the pressure-sensitive electric blanket. Utility Model Content

[0005] The utility model aims to solve the problems of high use cost and poor use effect of pressure-sensitive electric blankets, and proposes a pressure-sensitive electric blanket.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-sensitive electric blanket, comprising an electric blanket main body, a fixing seat and a power cord, wherein the fixing seat is fixedly installed at the end of the electric blanket main body, and an electric blanket pressure-sensitive identification starting structure is provided on the inner side of the fixing seat, and the electric blanket pressure-sensitive identification starting structure comprises a sealing block, a connecting wire and a heating element, the sealing block is fixedly connected to the outer wall of the fixing seat, a plurality of the connecting wires are fixedly connected to the inner side of the fixing seat, an automatic switch is fixedly installed inside the plurality of the connecting wires, a plurality of the heating elements are fixedly installed on the inner side of the electric blanket main body, the ends of the plurality of the heating elements are fixedly connected to the connecting wires, the interiors of the plurality of the heating elements are fixedly connected to a heat-proof block, and a pressure sensor is fixedly installed on the top of the plurality of the heat-proof blocks.

[0007] Preferably, a surface layer is fixedly installed above the electric blanket body, the top end of the pressure sensor is fixedly connected to the inner side of the surface layer, and a plurality of the pressure sensors are arranged in parallel and equidistant from each other.

[0008] Preferably, a heat-insulating layer is fixedly installed at the lower end of the electric blanket body, a moisture-proof layer is fixedly installed at the lower end of the heat-insulating layer, a plurality of pads are fixedly installed at the inner bottom end of the electric blanket body, and the top ends of the plurality of pads are movably connected to the heating element.

[0009] Preferably, an electric blanket fixing structure is provided on the rear side of the electric blanket body;

[0010] The electric blanket fixing structure comprises a limiting piece, a top cap and a threaded sleeve;

[0011] The two limiting plates are fixedly connected to the rear outer wall of the electric blanket body, the inner sides of the two limiting plates are movably connected with threaded rods, the two top caps are fixedly connected to the top ends of the threaded rods, and protective pads are movably sleeved between the inner sides of the two top caps and the limiting plates. Insertion heads are fixedly installed at the lower ends of the two threaded rods, the outer sides of the two threaded rods are threadedly connected with threaded sleeves, and the top ends of the two threaded sleeves are movably connected to the lower ends of the limiting plates.

[0012] Preferably, the power cord is fixedly connected to the outside of the sealing block, the inside of the power cord is electrically connected to the connecting wire, and a controller is fixedly installed on the outside of the power cord, and the controller is electrically connected to the heating element.

[0013] Preferably, a plug is fixedly installed at the end of the power cord, and the rear side of the plug is fixedly connected to the electric blanket body through the power cord.

[0014] The utility model provides a pressure-sensitive electric blanket, which has the beneficial effect of being connected to the heating elements through a connecting line via a plurality of automatic switches. At this time, the heating elements are not powered and will not generate heat. Only when a person lies on the electric blanket will the pressure sensor receive a pressure signal. When the human body touches a certain part of the pressure sensor, the automatic switch at the end of the corresponding heating element will be activated, so that the electric blanket saves a lot of useless loss of electricity and heat, thereby reducing the use cost of the pressure-sensitive electric blanket.

[0015] After the main body of the electric blanket is laid flat on the bed, the lower end of the limiting plate is fitted with the bedding fabric on the bed, and then the top cap is used to drive the sharp end of the lower insertion head to pass through the limiting plate and the bedding fabric, and finally the lower threaded sleeve is screwed upward onto the threaded rod. At this time, the protective pad under the top cap will fix the position of the electric blanket main body and the bedding fabric, making it less likely for the electric blanket to move or deviate, which directly improves the use effect of the pressure-sensitive electric blanket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 A schematic cross-sectional view of the top surface;

[0018] Figure 3 for Figure 1 A front cross-sectional schematic diagram of

[0019] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0020] Figure 5 for Figure 3 Enlarged cross-sectional view of part B in the middle;

[0021] Figure 6 for Figure 3 Enlarged cross-sectional view of part C in the middle.

[0022] In the figure: 1. electric blanket main body, 2. fixing seat, 3. power cord, 4. surface layer, 5. electric blanket pressure sensing identification starting structure, 51. sealing block, 52. connecting line, 53. automatic switch, 54. heating element, 55. heat-proof block, 56. pressure sensor, 61. moisture-proof layer, 62. thermal insulation layer, 63. cushion block, 7. electric blanket fixing structure, 71. limiting piece, 72. top cap, 73. protective pad, 74. threaded rod, 75. insertion head, 76. threaded sleeve, 8. controller, 9. plug. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] See also Figure 1-6 A pressure-sensitive electric blanket comprises an electric blanket body 1, a fixing seat 2 and a power cord 3. The fixing seat 2 is fixedly mounted at the end of the electric blanket body 1. An electric blanket pressure-sensitive identification start structure 5 is arranged on the inner side of the fixing seat 2. The electric blanket pressure-sensitive identification start structure 5 comprises a sealing block 51, a connecting line 52 and a heating element 54. The sealing block 51 is fixedly connected to the outer wall of the fixing seat 2. The sealing block 51 is made of rubber and is used to connect the power cord 3 and the fixing seat 2. A plurality of connecting lines 52 are fixedly connected to the inner side of the fixing seat 2. Automatic switches 53 are fixedly mounted inside the plurality of connecting lines 52. A plurality of heating elements 54 are fixedly mounted on the inner side of the electric blanket body 1. When the plug 9 at the end of the electric blanket body 1 is plugged into the power supply, the connecting line 52 will be connected to the heating element 54 through the plurality of automatic switches 53. However, when no one is lying on the electric blanket, the automatic switch 53 will not be turned on. At this time, the heating element 54 will not be powered on and will not heat up. Only when a person lies on the electric blanket will the pressure sensor 56 receive the pressure. Pressure signal, when the human body touches a certain part of the pressure sensor 56, the automatic switch 53 at the end of the corresponding heating element 54 will be activated. At this time, the heating element 54 under the human body will be powered on for heating, while the part that is not in contact with the human pressure will not be powered on. The principle of partial control for power-on heating saves a lot of useless loss of electric energy and heat. The ends of multiple heating elements 54 are fixedly connected to the connecting wire 52, and the interiors of multiple heating elements 54 are fixedly connected with heat-proof blocks 55. The heat-proof blocks 55 are made of high-temperature resistant acrylic cotton fiber to protect the pressure sensors 56 from being burned by the heating elements 54. The tops of multiple heat-proof blocks 55 are fixedly installed with pressure sensors 56. A surface layer 4 is fixedly installed on the top of the electric blanket body 1. The surface layer 4 is made of flexible cotton with high comfort. The surface layer of the electric blanket is more comfortable to touch the human body. The top of the pressure sensor 56 is fixedly connected to the inner side of the surface layer 4. Multiple pressure sensors 56 are arranged in parallel and equidistant from each other.

[0025] The heat-proof block 55 is made of high-temperature resistant acrylic cotton fiber to protect the pressure sensor 56 from being burned by the heating element 54. The surface layer 4 is made of flexible cotton with high comfort. The surface layer of the electric blanket is more comfortable to touch the human body. When the plug 9 at the end of the electric blanket body 1 is inserted into the power supply, the connecting line 52 will be connected to the heating element 54 through multiple automatic switches 53. However, when no one is lying on the electric blanket, the automatic switch 53 will not be turned on. At this time, the heating element 54 is not powered and will not heat up. Only when a person lies on the electric blanket, the pressure sensor 56 will receive the pressure signal. When the human body touches a certain part of the pressure sensor 56, the automatic switch 53 at the end of the corresponding heating element 54 will be activated. At this time, the heating element 54 under the human body will be powered on and heated, while the part that is not in contact with the human pressure will not be powered on. The principle of partial control for power-on heating saves a lot of useless loss of electricity and heat, thereby reducing the cost of using the pressure-sensitive electric blanket.

[0026] See also Figure 1-6 The rear side of the electric blanket body 1 is provided with an electric blanket fixing structure 7, which includes a limiting piece 71, a top cap 72 and a threaded sleeve 76. The two limiting pieces 71 are fixedly connected to the outer wall of the rear side of the electric blanket body 1. The inner sides of the two limiting pieces 71 are movably connected with a threaded rod 74. The two top caps 72 are fixedly connected to the top of the threaded rod 74. A protective pad 73 is movably sleeved between the inner sides of the two top caps 72 and the limiting pieces 71. The protective pad 73 is made of a dirt-resistant chemical fiber cloth to increase the thickness of the connection between the limiting piece 71 to protect the connection between the bed cloth from being easily torn. The lower ends of the two threaded rods 74 are fixedly installed with an insertion head 75, the outer sides of the two threaded rods 74 are threadedly connected with threaded sleeves 76, and the limiting piece 71 is fixed to the rear side of the electric blanket body 1. When the electric blanket body 1 is laid flat on the bed, the lower end of the limiting piece 71 is fitted with the bedding fabric on the bed, and then the top cap 72 is used to drive the sharp end of the lower end insertion head 75 to pass through the limiting piece 71 and the bedding fabric, and finally the threaded sleeve 76 at the lower end is screwed upward onto the threaded rod 74 to fix the top cap 72. At this time, the protective pad 73 under the top cap 72 will fix the position of the electric blanket body 1 and the bedding fabric, so that the electric blanket is not easy to move or deviate, and the top ends of the two threaded sleeves 76 are movably connected to the lower end of the limiting piece 71;

[0027] The protective pad 73 is made of dirt-resistant chemical fiber cloth to increase the thickness of the connection between the limiting plate 71 to protect the connection between the bed cloth from being torn. When the electric blanket body 1 is laid flat on the bed, the lower end of the limiting plate 71 is fitted with the bedding cloth on the bed, and then the top cap 72 is used to drive the sharp end of the lower end insertion head 75 to pass through the limiting plate 71 and the bed cloth, and finally the lower end threaded sleeve 76 is screwed upward onto the threaded rod 74 to fix the top cap 72. At this time, the protective pad 73 under the top cap 72 will fix the position of the electric blanket body 1 and the bed cloth, so that the electric blanket is not easy to move or deviate, which directly improves the use effect of the pressure-sensitive electric blanket.

[0028] See also Figure 1-6 The lower end of the electric blanket body 1 is fixedly installed with an insulation layer 62, and the lower end of the insulation layer 62 is fixedly installed with a moisture-proof layer 61. The moisture-proof layer 61 is arranged at the bottom layer of the electric blanket and is made of high-elastic spray-coated cotton for moisture-proofing and increasing the softness below. A plurality of pads 63 are fixedly installed at the bottom end of the inner part of the electric blanket body 1. The pads 63 are made of a plurality of high-temperature resistant silicone rubber coated glass fiber cloths and are normally used to pad the heating element 54 to contact the top surface layer to better improve the heating speed. The tops of the plurality of pads 63 are movably connected to the heating element 54. The power cord 3 is fixedly connected to the outside of the sealing block 51. The power cord 3 can be connected to a power source such as a socket strip through a plug 9. The inner side of the power cord 3 is electrically connected to the connecting line 52. A controller 8 is fixedly installed on the outside of the power cord 3. The controller 8 can control the temperature of the electric blanket and the opening and closing of the automatic switch 53. The controller 8 is electrically connected to the heating element 54. A plug 9 is fixedly installed at the end of the power cord 3. The rear side of the plug 9 is fixedly connected to the electric blanket body 1 through the power cord 3.

[0029] Working principle:

[0030] First, the heat-proof block 55 is made of high-temperature resistant acrylic cotton fiber to protect the pressure sensor 56 from being burned by the heating element 54. The surface layer 4 is made of flexible cotton with high comfort. The surface layer of the electric blanket is more comfortable to touch the human body. When the plug 9 at the end of the electric blanket body 1 is plugged into the power supply, the connecting line 52 will be connected to the heating element 54 through multiple automatic switches 53. However, when no one lies on the electric blanket, the automatic switch 53 will not be turned on. At this time, the heating element 54 will not be powered and will not heat up. Only when a person lies on the electric blanket, the pressure sensor 56 will receive the pressure signal. When the human body touches a part of the pressure sensor 56, the automatic switch 53 at the end of the corresponding heating element 54 will be activated. At this time, the heating element 54 under the human body will be powered on and heated, and the part that is not in contact with the human pressure will not be powered on.

[0031] Then the protective pad 73 is made of dirt-resistant chemical fiber cloth, and the thickness of the connection between the limiting piece 71 is increased to protect the connection between the bed cloth from being torn. When the electric blanket body 1 is laid flat on the bed, the lower end of the limiting piece 71 is fitted with the bedding cloth on the bed, and then the top cap 72 is used to drive the sharp end of the lower end insertion head 75 to pass through the limiting piece 71 and the bed cloth, and finally the threaded sleeve 76 at the lower end is screwed upward onto the threaded rod 74 to fix the top cap 72. At this time, the protective pad 73 under the top cap 72 will fix the position of the electric blanket body 1 and the bed cloth, so that the electric blanket is not easy to move or deviate.

[0032] Finally, the moisture-proof layer 61 is set at the bottom layer of the electric blanket and is made of high-elastic spray-coated cotton to prevent moisture and increase the softness of the bottom. The pad 63 uses a plurality of high-temperature resistant silicone rubber-coated glass fiber cloths and is normally used to pad the heating element 54 to contact the top surface layer to better increase the heating speed. The power cord 3 can be connected to a power source such as a socket strip through the plug 9. The controller 8 can control the temperature of the electric blanket and the opening and closing of the automatic switch 53.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A pressure-sensitive electric blanket, comprising an electric blanket body (1), a fixing base (2) and a power cord (3), characterized in that: The fixing seat (2) is fixedly mounted on the end of the electric blanket body (1); an electric blanket pressure sensing identification start structure (5) is provided on the inner side of the fixing seat (2); the electric blanket pressure sensing identification start structure (5) comprises a sealing block (51), a connecting wire (52) and a heating element (54); the sealing block (51) is fixedly connected to the outer wall of the fixing seat (2); a plurality of connecting wires (52) are fixedly connected to the inner side of the fixing seat (2); an automatic switch (53) is fixedly mounted inside the plurality of connecting wires (52); a plurality of heating elements (54) are fixedly mounted on the inner side of the electric blanket body (1); the ends of the plurality of heating elements (54) are fixedly connected to the connecting wires (52); a heat protection block (55) is fixedly connected inside the plurality of heating elements (54); and a pressure sensor (56) is fixedly mounted on the top of the plurality of heat protection blocks (55).

2. A pressure-sensitive electric blanket according to claim 1, characterized in that: A surface layer (4) is fixedly mounted above the electric blanket body (1), the top end of the pressure sensor (56) is fixedly connected to the inner side of the surface layer (4), and a plurality of the pressure sensors (56) are arranged in parallel and at equal distances from each other.

3. A pressure-sensitive electric blanket according to claim 1, characterized in that: A heat-insulating layer (62) is fixedly mounted on the lower end of the electric blanket body (1), a moisture-proof layer (61) is fixedly mounted on the lower end of the heat-insulating layer (62), and a plurality of pads (63) are fixedly mounted on the inner bottom end of the electric blanket body (1), the top ends of the plurality of pads (63) being movably connected to the heating element (54).

4. A pressure-sensitive electric blanket according to claim 1, characterized in that: An electric blanket fixing structure (7) is provided on the rear side of the electric blanket body (1); The electric blanket fixing structure (7) comprises a limiting piece (71), a top cap (72) and a threaded sleeve (76); The two limiting plates (71) are fixedly connected to the rear outer wall of the electric blanket body (1); the inner sides of the two limiting plates (71) are movably connected to a threaded rod (74); the two top caps (72) are fixedly connected to the top ends of the threaded rods (74); a protective pad (73) is movably sleeved between the inner sides of the two top caps (72) and the limiting plates (71); an insertion head (75) is fixedly installed at the lower ends of the two threaded rods (74); the outer sides of the two threaded rods (74) are threadedly connected to a threaded sleeve (76); and the top ends of the two threaded sleeves (76) are movably connected to the lower ends of the limiting plates (71).

5. The pressure-sensitive electric blanket according to claim 1, characterized in that: The power line (3) is fixedly connected to the outside of the sealing block (51), the inside of the power line (3) is electrically connected to the connecting line (52), and a controller (8) is fixedly installed on the outside of the power line (3), and the controller (8) is electrically connected to the heating element (54).

6. The pressure-sensitive electric blanket according to claim 1, characterized in that: A plug (9) is fixedly mounted on the end of the power cord (3), and the rear side of the plug (9) is fixedly connected to the electric blanket body (1) via the power cord (3).

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