PVC heating blanket
By shifting the power unit in the PVC heating blanket and using the fastening device, the waste of power and increase of packaging space caused by the positioning method of power units and fastening belts in the prior art is solved, and the effect of more efficient heating and saving packaging materials is achieved.
Patent Information
- Application Number
- CN202510018899.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-08
- Filing Date
- 2025-01-07
- Publication Date
- 2025-07-08
AI Technical Summary
The power unit and fastening belt positioning of existing PVC heating blankets result in reduced contact between the heating blanket portion and the PVC pipe surface, wasting power and increasing packaging space, and wires occupy additional space.
The power unit is offset from the peripheral edge of the heating blanket portion to provide a gap of at least the wire width, and the heating blanket portion is secured by a fastening tape, the power cord is inserted into the gap, the power unit is adjacent to one edge of the heating blanket portion, and the fastening means extending from the middle.
Improves the contact efficiency of the heating blanket with PVC pipe, reduces power waste, shortens heating time, and saves packaging space and materials.
Smart Images
Figure CN120282325A_ABST
Abstract
Description
Field of the Invention
[0001] The present invention generally relates to the construction industry and, more particularly, to a PVC heating blanket that includes a power unit positioned adjacent to one edge of the heating blanket and a fastening means extending from the one edge of the heating blanket. Background Art
[0002] In order to bend a PVC pipe, it must first be heated. Otherwise, the PVC pipe will break or kink when bent. Prior art PVC heating blankets position the power unit adjacent to one edge and the fastening straps on the opposite edge. Positioning the power unit on one edge and the fastening straps on the opposite edge has the disadvantage of reducing the surface area contact of the heating blanket portion with the PVC pipe. As a result, there is wasted electricity and a longer time to heat the PVC pipe. In addition, the power unit includes electrical wires. Prior art PVC heating blankets position the power cords on the edges of the perimeter of the heating blanket portion. As a result, the packaging for storing the PVC heating blanket must be longer to accommodate the width of the electrical wires. In addition, additional packaging materials and increased shelf space are required to store the PVC heating blanket packaging.
[0003] Accordingly, there is a felt need in the art for a PVC heating blanket that includes a power unit positioned adjacent to one edge of the heating blanket portion and a fastening means extending from the one edge of the heating blanket portion; and the power unit is offset from the perimeter edge of the heating blanket portion to provide a clearance for at least the width of the electrical wires. Summary of the Invention
[0004] The present invention provides a PVC heating blanket, which includes a power supply unit that is offset from the peripheral edge of the heating blanket portion to provide a gap of at least the width for the electrical wires. The PVC heating blanket preferably includes a power supply unit, a heating blanket portion, and fastening means. The power supply unit preferably includes a thermostat and a power cord. The thermostat controls the flow of current to the heating blanket portion. If the heating blanket portion becomes too hot, the thermostat will stop the flow of current to the heating blanket portion. The heating blanket portion preferably includes a heating element and a flexible outer cover. The heating element is preferably a long filament that has an annular pattern to cover the inner surface area of the heating blanket portion. The flexible outer cover is thermally conductive but not electrically conductive. The heating element is held within the flexible cover. The fastening means extends from the middle of one edge of the heating blanket portion. The fastening means is preferably a fastening strap, but can be any other suitable fastening means. The fastening strap preferably includes a hook-and-loop fastener. The power supply unit is positioned adjacent to the one edge of the heating blanket portion and the fastening means. In use, the edge opposite the one edge of the heating blanket portion contacts a PVC pipe and wraps around the PVC pipe. By wrapping the fastening strap around the heating blanket portion and securing it to itself, the heating blanket portion is held in place. Then the power cord is inserted into a 120V AC electrical outlet to heat the PVC pipe.
[0005] Accordingly, it is an object of the present invention to provide a PVC heating blanket having a power supply unit positioned adjacent to one edge of the heating blanket portion and fastening means extending from the one edge of the heating blanket portion.
[0006] Finally, another object of the present invention is to provide a PVC heating blanket having a power supply unit that is offset from the peripheral edge of the heating blanket portion to provide a gap of at least the width for the electrical wires.
[0007] These and other objects, advantages, features, and benefits of the present invention will become apparent from the following specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 is a top view of a prior art PVC heating blanket.
[0009] Figure 2 is a top view of a PVC heating blanket according to the present invention.
[0010] Figure 3 is a perspective view of a prior art PVC heating blanket wrapped around a PVC pipe.
[0011] Figure 4 is a perspective view of a PVC heating blanket wrapped around a PVC pipe according to the present invention.
[0012] Figure 5 is a schematic diagram of a preferred power supply unit of a PVC heating blanket according to the present invention.
[0013] Figure 6 It is a top view of the heating blanket portion, where a part of the flexible cover is removed to show the heating element of the PVC heating blanket according to the present invention. Detailed Description
[0014] Now referring to the drawings, and particularly to Figure 2 , a top view of the PVC heating blanket 1 is shown. Referring to FIG. 1, a prior art PVC heating blanket 100 is shown. The PVC heating blanket 100 includes a power supply unit 102, a heating blanket portion 104, and a fastening strap 106. The power supply unit 102 is positioned adjacent to one edge of the heating blanket portion 104, and the fastening strap 106 extends from the opposite edge of the heating blanket portion 104. Referring to FIG. 3, the PVC heating blanket 100 is fixed to a PVC pipe 108. The end of the heating blanket portion 104 is wound around the outer perimeter of the power supply unit 102, rather than around the heating blanket portion 104 or the PVC pipe 108. Referring to Figure 4 , due to the position of the power supply unit 10 relative to the fastening means 14, the PVC heating blanket 1 is wound around the PVC pipe 108 or the heating blanket portion 12.
[0015] The PVC heating blanket 1 preferably includes a power supply unit 10, a heating blanket portion 12, and a fastening means 14. Referring to Figure 5 , the power supply unit 10 preferably includes a thermostat 16 and a power cord 18. The thermostat 16 and the heating element 20 are powered by 120V AC. The thermostat 16 controls the flow of current to the heating blanket portion 12. If the heating blanket portion 12 becomes too hot, the thermostat 16 will stop the flow of current to the heating blanket portion 12. The heating blanket portion 12 preferably includes a heating element 20 and a flexible outer cover 22. The heating element 20 is preferably a long conductive filament having an annular pattern to cover the inner surface area of the heating blanket portion 12. The flexible outer cover 22 includes a top layer 26 and a bottom layer 28. The flexible outer cover 22 is made of a flexible material that is thermally conductive but not electrically conductive. The heating element 20 is held between the top layer 26 and the bottom layer 28 of the flexible outer cover 22. The fastening means 14 extends from the middle of one edge 30 of the heating blanket portion 12. The fastening means 14 is preferably a fastening strap, but can also be any other suitable fastening means. The fastening strap preferably includes a hook and loop fastener. The hook and loop fastener is Velcro ®The product, but other types of straps can also be used. The power supply unit 10 is positioned adjacent to an edge 30 of the heating blanket portion 12. There is a gap G between the side edge 32 of the heating blanket portion 12 and the end of the power supply unit 10. When the PVC heating blanket 1 is placed in a package (such as a box), the gap G allows the wire 18 to be pushed into the periphery of the heating blanket portion 12. The gap G also helps the user to bring the edge of the PVC heating blanket as close to the wall as possible, and the power cord 18 will not be an obstacle. The gap G is at least the thickness of the power cord 20. In use, the edge 34 opposite to the said one edge 30 of the heating blanket portion 12 contacts the PVC pipe 108 and winds around the PVC pipe 108. By winding the fastening strap 14 around the heating blanket portion 12 and fixing it to itself, the heating blanket portion 12 is fixed in place. Then the power cord 18 is inserted into a 120V AC electrical outlet to heat the PVC pipe 108.
[0016] Although specific embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that changes and modifications can be made without departing from the present invention in its broader aspects, and thus in its objective aspects, the appended claims will cover all such changes and modifications as fall within the true spirit and scope of the present invention.
Claims
1. A PVC heating blanket, the PVC heating blanket comprising: A power supply unit, the power supply unit including a thermostat, the thermostat receiving power from a current source; A heating blanket portion, the heating blanket portion including a housing and a heating element, the heating element being contained within the housing, the housing including an outer perimeter, the power supply unit being positioned adjacent to one edge of the outer perimeter; And Fastening means, the fastening means extending from the one edge of the outer perimeter.
2. The PVC heating blanket according to claim 1, wherein: The heating element includes a conductive filament having an annular pattern.
3. The PVC heating blanket according to claim 1, the PVC heating blanket further comprising: A power supply, the power supply being an alternating voltage.
4. The PVC heating blanket according to claim 1, wherein: The housing is made of a flexible material.
5. The PVC heating blanket according to claim 1, wherein: The housing is non-conductive.
6. The PVC heating blanket according to claim 1, wherein: The fastening means is a fastening strap.
7. The PVC heating blanket according to claim 6, wherein: The fastening strap includes a hook and loop fastener.
8. A PVC heating blanket, the PVC heating blanket comprising: A power supply unit, the power supply unit including a thermostat and a power cord, the thermostat receiving power from a current source through the power cord; A heating blanket portion, the heating blanket portion including a housing and a heating element, the heating element being contained within the housing, the housing including an outer perimeter, the power cord extending from an end of the power supply unit, the distance between the end of the power supply unit and the perimeter of the outer perimeter being at least the thickness of the power cord; And Fastening means, the fastening means extending from an edge of the outer perimeter.
9. The PVC heating blanket according to claim 8, wherein: The heating element includes a conductive filament having an annular pattern.
10. The PVC heating blanket according to claim 8, the PVC heating blanket further comprising: A power supply, the power supply being an alternating voltage.
11. The PVC heating blanket according to claim 8, wherein: The housing is made of a flexible material.
12. The PVC heating blanket according to claim 8, wherein: The housing is non-conductive.
13. The PVC heating blanket according to claim 8, wherein: The fastening means is a fastening strap.
14. The PVC heating blanket according to claim 13, wherein: The fastening strap includes a hook and loop fastener.
15. A PVC heating blanket, the PVC heating blanket comprising: A power supply unit, the power supply unit including a thermostat and a power cord, the thermostat receiving power from a current source through the power cord; The heating blanket portion, wherein the heating blanket portion includes a housing and a heating element, the housing includes a top layer and a bottom layer, the heating element is contained between the top layer and the bottom layer, the housing includes an outer perimeter, the power supply unit is positioned adjacent to one edge of the outer perimeter, the power cord extends from an end of the power supply unit, and the distance between the end of the power supply unit and the perimeter of the outer perimeter is at least the thickness of the power cord; and a fastening device that extends from the one edge of the outer perimeter.
16. The PVC heating blanket according to claim 15, wherein: The heating element includes a conductive filament having an annular pattern.
17. The PVC heating blanket according to claim 15, the PVC heating blanket further comprising: a power supply, the power supply being an alternating voltage.
18. The PVC heating blanket according to claim 15, wherein: The housing is made of a flexible material.
19. The PVC heating blanket according to claim 15, wherein: The housing is non-conductive.
20. The PVC heating blanket according to claim 15, wherein: The fastening device includes a hook and loop fastener.