TH33501A - Improved dip heating element With skeleton-shaped supports And selectable heat transfer fins - Google Patents

Abstract

DC60 Various electric resistance heating element, water heater containing Such components, and a method for preparing such components. With the various electrical resistances of this invention It is composed of a skeletal support frame (70) with one support surface on it. The resistance wire (66) is wound on the subsurface. And that's right It is then connected to at least one pair of terminal blocks (12, 16), support frame (70) and resistance wire (66), and then completely sealed. And internal electrical insulation thermally conductive polymer coating (30,64). The skeletal support frame (70) of the invention improves the injection molding operation. For the encapsulation of the resistance wire (66), and heat transfer fins (62) can be incorporated to improve the thermal conductivity. Various resistive heating elements, water heaters containing Such components, and a method for preparing such components. With the various electrical resistances of this invention It is composed of a skeletal support frame (70) with one support surface on it. The resistance wire (66) is wound on the subsurface. And that's right It is then connected to at least one pair of terminal blocks (12,16), support frame (70) and resistance wire (66), and then completely sealed. And internal electrical insulation thermally conductive polymer coating (30,64). The skeletal support frame (70) of the invention improves the injection molding operation. For the encapsulation of the resistance wire (66), and heat transfer fins (62) can be incorporated to improve the thermal conductivity.

Claims (5)

1. An electric resistance heating element that can be positioned through the wall of the tank. For use in relation to the heating of a fluid medium consisting of (a) the first flange end (32) (b) a skeletal support frame (70) with a number of openings through the That and the surface supports The one is on it (c) a resistance wire (66) that is wound on the first support surface and is connected to At least a pair of terminal blocks (12,16) at the aforementioned flange end of the section Assembled to such heat; And (d) a thermal conductive polymer coating (30) placed over such resistance wire. For completely encapsulating and insulating electrical insulation, such resistance wire From the fluid medium 2. Heating element of claim 1 where the aforementioned skeletal support frame (70) includes Number of longitudinal ribs (69) 3. Heating element of claim 2, wherein the longitudinal ridge (69) is included. A number of grooves (68) for the support of the resistance wire 4. Heating element of claim 3, which is supplemented by a number of ring-shaped supports (60), which connects the longitudinal frame. (69) 5. Heating element of claim No. 4, where the aforementioned skeleton support (70) is also included. Heat transfer fins (62) that are positioned to protrude into the body. Fluid medium 6. Heating element of claim 1 where the skeletal support (70) is made up of a tube shape, with the opening representing at least approximately 10 percent. Of the total surface area of the aforementioned tube shape to facilitate the casting (30) above the resistance wire 7. Heating element of claim 6 whereby the aforementioned skeleton support (70), which consists of With a number of longitudinal ribs (69), there is a set of grooves spaced from each other (68) for receiving such resistance wire. 8. Heating element of claim 7 where the frame The aforementioned skeleton supports (70) and the aforementioned thermally conductive polymer (30) are included. Thermoplastic Same type of resin 9. A polymer skeletonized support frame for supporting the resistance wire (66) of the resistive heating element consisting of A number of (69) longitudinal ribs, including grooves spaced from each other (68) along their length, a number of heat transfer fins (62) protruding from the longitudinal ridge ( 69), such longitudinal ribs (69) that are joined together by a spaced ring-shaped support. From each longitudinal number (60) 1 0. Water heater This includes (a) a tank (13) for water and (b) a heating element (100) attached to the wall of the tank (13) for providing For electric resistance heating to a section of water in such a tank (13), the aforementioned heating element (100) consists of (c) a skeletal support frame (70) with a number of openings. Go through that and the surface supports The one is on it (d) a resistance wire (66) that is wound on the first support surface. And connected with A pair of terminal ends (12,16) and (e) thermal conductive polymer coating (30) placed over the resistance wire (66) and the main part of the supporting frame. Such a skeleton (70) for covering and covering. Electrical insulation, such resistance wire (66) from water 1 1. The water heater of the 10th claim, where the skeletal support (70) is composed of a number of longitudinal ribs (69) that are joined together by an annular support (60). ) To provide a set of side wall openings for facilitating the casting of the aforementioned thermally conductive polymer coating (30) over the aforementioned resistance wire (66) 1. 2. The components are also heated. The electrical resistance can be positioned through the wall of the tank. For use in relation to the heating of the fluid medium It consists of (a) polymer skeleton supports (70) with a number of (69) longitudinal ribs connected by a set of spaced ring-shaped supports ( 60), Such longitudinal ribs (69) are made up of grooves spaced from each other (68) (b) resistance-heated wires (66) with a pair of free ends welded. Connect with A pair of terminal ends (12,16), the wires heated with such resistance (66), are wound on top and supported by such spaced grooves (68): and ( C) polymer coatings (64) containing additives for the heat conduction of The polymer coating (64) is placed over the resistance wire (66) and at least 90 percent of the aforementioned skeletal support frame (70) for complete encapsulation and coat Electrical insulation The resistance wire (66) from the fluid medium, where the supporting frame is The skeleton (70) provides a number of openings to facilitate the casting of the glaze. Such polymer (64) 1 3. Heating element of claim 12, where the skeletal support frame (70) is made up of tube shape 1. 4. The heating element of claim 13, which is supplemented by a heat transfer fin (62), is placed on the internal surface of the tube shape 1. 5. Electrical resistance heating element that can be positioned through the wall of the tank. For use in relation to the heating of a fluid medium consisting of (a) a tube-shaped polymer skeletal support frame (70) with one support surface on it (b). ) A resistance wire (66) wound on one such support surface and connected to at least a pair of terminal ends (12,16): (c) polymer coated lead. The heat (64) is placed over the resistance wire (66) and an integral part of the support frame (70) for fully enclosed and electrically insulated. Such resistance wire (66) from the fluid medium; and (d) a number of (62) heat transfer fins arranged to protrude from the component surface. Give such heat To provide more efficient heating of the flowing medium