A new waterproof electric blanket
By introducing a polyethylene waterproof outer layer and a winding mechanism into the electric blanket, the problem of poor waterproofing of the electric blanket is solved, the waterproofing performance and service life are improved, and the operation process is simplified, realizing convenient use and quick winding of the electric blanket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIABEI TIMES TECHNOLOGY CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing electric blankets are easily damaged when in contact with water, lack effective waterproofing, and thus affect their lifespan and ease of use.
A structure comprising a lower cotton pad, insulating heat-conducting wire, power receiving temperature control box, external power cord, plug, upper cotton pad, and polyethylene waterproof outer layer is designed to provide good waterproof performance. The electric blanket can be quickly rolled up through a combination of pressure plate, electric push rod, winding roller, outer frame, and inner motor.
It improves the waterproof performance of electric blankets, reduces the probability of damage caused by accidental contact with water, simplifies the operation, extends the service life, and makes it easier to roll up and store electric blankets.
Smart Images

Figure CN224473438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric blanket technology, specifically a new type of waterproof electric blanket. Background Technology
[0002] An electric blanket is a bed heating appliance that generates heat by connecting an internal alloy resistance wire or carbon fiber heating element to electricity. Its core is a temperature control system that precisely regulates the temperature (usually adjustable from 30-50℃). It is equipped with a double-layer insulation structure (inner layer polyester film + outer layer PVC) to prevent electric leakage. The surface is covered with skin-friendly fabric (such as pure cotton or flannel) to enhance comfort. It also has safety functions such as overload protection and timer shutdown. Some models also support zoned temperature control or smart interconnection. It is suitable for localized rapid heating in homes, dormitories and other scenarios in winter. Electric blankets have become a popular and in-demand product in winter.
[0003] An investigation revealed that patent CN103799775A discloses a novel electric blanket, comprising a blanket body and heating wires disposed within the blanket body, as well as a moisturizing layer made of an impermeable material. The moisturizing layer has an injection port and a evaporation port, with the evaporation port having a cap controlled by a control circuit. The heating wires of this electric blanket are surrounded by an electromagnetic shielding material layer, effectively reducing electromagnetic radiation; the moisturizing layer effectively prevents skin moisture loss due to heating, maintaining humidity within a certain range and reducing the occurrence of skin diseases; it also includes a traditional Chinese medicine layer and a magnetic therapy layer, further protecting the skin and providing health benefits and massage effects; the electric blanket also has a flame-retardant material layer to prevent fires caused by circuit damage.
[0004] However, most electric blankets on the market are not very convenient to use and do not provide good waterproofing. If water is accidentally spilled on the electric blanket, it will greatly increase the probability of damage, affect the overall lifespan of the electric blanket, increase the precautions required for subsequent maintenance, and increase the complexity of use for users. Utility Model Content
[0005] The purpose of this invention is to provide a novel waterproof electric blanket to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof new type of electric heating blanket, including a lower cotton pad, an insulating heat-conducting wire fixedly connected to the top of the lower cotton pad, a power receiving temperature control box fixedly installed and connected to one end of the insulating heat-conducting wire, and an external power cord installed and connected to one side of the power receiving temperature control box.
[0007] One end of the external power cord is fixedly connected to a plug, and the top of the lower cotton pad is fixedly connected to an upper cotton pad. The top of the upper cotton pad is fixedly connected to a polyethylene waterproof outer layer, which makes the electric blanket more convenient to use, provides good waterproof effect for users, reduces the probability of damage caused by accidental contact with water, improves the service life of the electric blanket, reduces the complexity of use for users, and improves the overall service life of the electric blanket.
[0008] Preferably, a pressure plate is movably connected to the top of the polyethylene waterproof outer layer, and the length of the pressure plate is less than the width of the polyethylene waterproof outer layer, which facilitates clamping one end of the electric blanket and thus facilitates the normal operation of subsequent work.
[0009] Preferably, an electric push rod is fixedly connected to the top of the pressure plate. There are two pressure plates, and each pressure plate is provided with two electric push rods on its top, which provides kinetic energy for clamping the electric blanket, thereby improving the stability of subsequent work.
[0010] Preferably, one end of the electric push rod is fixedly connected to a take-up roller, and the length of the take-up roller is equal to the width of the polyethylene waterproof outer layer.
[0011] Preferably, an outer frame is fixedly connected to one side of the take-up roller, and the diameter of the outer frame is equal to the diameter of the take-up roller.
[0012] Preferably, an internal motor is fixedly connected inside the outer frame, and there are two internal motors and two outer frames.
[0013] Preferably, the output shaft of the inner motor is fixedly connected to a roller via a coupling, and the diameter of the roller is larger than the diameter of the outer frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model, through the design of a lower cotton pad, insulating heat-conducting wire, power receiving temperature control box, external power cord, plug, upper cotton pad, and polyethylene waterproof outer layer, makes the electric blanket more convenient to use, provides good waterproof effect for users, thereby reducing the probability of damage caused by accidental contact with water, extending the service life of the electric blanket, reducing the complexity of use for users, and improving the overall service life of the electric blanket.
[0016] This invention, through the design of a pressure plate, electric push rod, winding roller, outer frame, inner motor, and rolling wheels, can provide a rapid winding effect for electric blankets, facilitating quick winding and storage when not in use, reducing the cumbersome operation during winding, and improving user satisfaction. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the waterproof electric blanket provided by this utility model;
[0018] Figure 2 The structural bottom view provided for this utility model;
[0019] Figure 3 This invention provides an internal structure demonstration;
[0020] Figure 4 A side sectional view of the structure provided for this utility model;
[0021] Figure 5 This is a rear sectional view of the structure provided for this utility model.
[0022] In the diagram: 1. Lower cotton pad; 2. Insulating heat-conducting wire; 3. Power receiving temperature control box; 4. External power cord; 5. Plug; 6. Upper cotton pad; 7. Polyethylene waterproof outer layer; 8. Pressure plate; 9. Electric push rod; 10. Rewinding roller; 11. Outer frame; 12. Inner motor; 13. Rolling wheel. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 As shown, a new type of waterproof electric blanket includes a lower cotton pad 1, an insulating heat-conducting wire 2 is fixedly connected to the top of the lower cotton pad 1, a power receiving temperature control box 3 is fixedly installed and connected to one end of the insulating heat-conducting wire 2, and an external power cord 4 is installed and connected to one side of the power receiving temperature control box 3.
[0025] One end of the external power cord 4 is fixedly connected to a plug 5, and the top of the lower cotton pad 1 is fixedly connected to an upper cotton pad 6. The top of the upper cotton pad 6 is fixedly connected to a polyethylene waterproof outer layer 7, which makes the electric blanket more convenient to use, provides good waterproof effect for users, reduces the probability of damage caused by accidental contact with water, improves the service life of the electric blanket, reduces the complexity of use for users, and improves the overall service life of the electric blanket.
[0026] A pressure plate 8 is movably connected to the top of the polyethylene waterproof outer layer 7, and the length of the pressure plate 8 is less than the width of the polyethylene waterproof outer layer 7, which facilitates clamping one end of the electric blanket and thus facilitates the normal operation of subsequent work. An electric push rod 9 is fixedly connected to the top of the pressure plate 8. There are two pressure plates 8, and each pressure plate 8 is equipped with two electric push rods 9 on its top, which provides kinetic energy for clamping the electric blanket and thus improves the stability of subsequent work. A winding roller 10 is fixedly connected to one end of the electric push rod 9, and the length of the winding roller 10 is equal to the width of the polyethylene waterproof outer layer 7, which facilitates the winding of the electric blanket and thus facilitates the subsequent placement of the electric blanket.
[0027] An outer frame 11 is fixedly connected to one side of the take-up roller 10, and the diameter of the outer frame 11 is equal to the diameter of the take-up roller 10, which facilitates the connection of other working parts and provides stability for the overall operation. An inner motor 12 is fixedly connected inside the outer frame 11, and there are two inner motors 12 and two outer frames 11, which provide power for the take-up of the electric blanket and facilitate the rotation of the take-up roller 10. The output shaft of the inner motor 12 is fixedly connected to a rolling wheel 13 through a coupling, and the diameter of the rolling wheel 13 is larger than the diameter of the outer frame 11. When the inner motor 12 is working, it grips the rolling wheel 13, which makes the take-up roller 10 rotate, thereby completing the take-up of the electric blanket.
[0028] Working principle: After laying the polyethylene waterproof outer layer 7 flat in the usage position, plug 5 is inserted into the power supply. The power receiving temperature control box 3 controls the power to enter the insulating heat-conducting wire 2, so that it can generate heat. At this time, the polyethylene waterproof outer layer 7 can provide a good waterproof effect. If it is necessary to roll up the electric blanket, place the tail end of the electric blanket between the two pressure plates 8. The electric push rod 9 extends so that the pressure plates 8 can clamp the electric blanket. At this time, the inner motor 12 starts to work. The output shaft of the inner motor 12 rotates, causing the rolling wheel 13 to rotate. By gripping the rolling wheel 13, the winding roller 10 can be rotated, thereby completing the overall winding of the electric blanket.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel waterproof electric blanket, comprising a lower cotton pad (1), characterized in that, An insulating heat-conducting wire (2) is fixedly connected to the top of the lower cotton pad (1), and a power receiving temperature control box (3) is fixedly installed at one end of the insulating heat-conducting wire (2). An external power supply line (4) is installed on one side of the power receiving temperature control box (3). One end of the external power cord (4) is fixedly connected to a plug (5), the top of the lower cotton pad (1) is fixedly connected to an upper cotton pad (6), and the top of the upper cotton pad (6) is fixedly connected to a polyethylene waterproof outer layer (7).
2. The novel waterproof electric blanket according to claim 1, characterized in that: The top of the polyethylene waterproof outer layer (7) is movably connected to a pressure plate (8), and the length of the pressure plate (8) is less than the width of the polyethylene waterproof outer layer (7).
3. The novel waterproof electric blanket according to claim 2, characterized in that: The top of the pressure plate (8) is fixedly connected with an electric push rod (9). There are two pressure plates (8), and each pressure plate (8) has two electric push rods (9) on its top.
4. A novel waterproof electric blanket according to claim 3, characterized in that: One end of the electric push rod (9) is fixedly connected to a take-up roller (10), and the length of the take-up roller (10) is equal to the width of the polyethylene waterproof outer layer (7).
5. A novel waterproof electric blanket according to claim 4, characterized in that: An outer frame (11) is fixedly connected to one side of the take-up roller (10), and the diameter of the outer frame (11) is equal to the diameter of the take-up roller (10).
6. A novel waterproof electric blanket according to claim 5, characterized in that: An internal motor (12) is fixedly connected inside the outer frame (11), and there are two internal motors (12) and two outer frames (11).
7. A novel waterproof electric blanket according to claim 6, characterized in that: The output shaft of the inner motor (12) is fixedly connected to a roller (13) via a coupling, and the diameter of the roller (13) is larger than the diameter of the outer frame (11).