Abrégé

Provided is a heater unit that can be made lighter in weight due to a thinner heater substrate while maintaining durability. This heater unit is provided with: a housing in which a flow path is formed on the upper surface side; a heater substrate which is disposed on the upper surface side of the housing so as to cover the flow path, and in which a heating element is provided along the flow path on a front surface facing the side opposite to the housing; and at least one frame from among a front surface frame disposed on the front surface of the heater substrate and a rear surface frame disposed on a rear surface of the heater substrate. Said one frame has an outer frame fixing part disposed along the outer peripheral part of the heater substrate, and the outer frame fixing part is fixed to the housing together with the heater substrate by a fastening member.

Classes IPC  ?

• H05B 3/40 - Éléments chauffants ayant la forme de tiges ou de tubes
• B60H 1/03 - Dispositifs de chauffage, de refroidissement ou de ventilation la chaleur étant prélevée de l'installation de propulsion et à partir d'une source autre que l'installation de propulsion
• F24H 1/14 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant dans lesquels l'eau est maintenue séparée de l'agent chauffant par tubes, p. ex. en forme de serpentins
• F24H 9/02 - EnveloppesCouvercles de protectionPanneaux décoratifs

Abrégé

Provided are: a heater that is capable of, in manner conforming to various fluid forms, uniformly and efficiently heating a fluid to be heated throughout the entire flow channel thereof; and a heater unit equipped with the heater. The heater is for heating a fluid to be heated flowing through a flow channel formed in the upper surface of a base, and comprises: a substrate that is disposed so as to cover the upper surface of the base; a heating element that is disposed on one surface side of the substrate; and a power supply line that is disposed on the one surface side of the substrate so as to lie along the flow channel. The heating element has a plurality of heating cells, each of which receives power individually. The heating cells are connected in parallel to the power supply line, and are arranged side by side so as to lie along the flow channel toward an outflow port from an inlet port provided in the base.

Classes IPC  ?

• H05B 3/14 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur caractérisés par la composition ou la nature du matériau conducteur le matériau étant non métallique
• F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
• H05B 3/40 - Éléments chauffants ayant la forme de tiges ou de tubes

Abrégé

Provided is a heater that is excellent in heat equalizing property even when being narrow in a sweep direction. Also provided are a fixing device, an image-forming device, and a heating device each including such a heater. A heater is configured to heat an object to be heated in such a manner that at least one of the object to be heated and the heater is swept with the heater disposed opposite the object to be heated. The heater includes a base having a rectangular shape and a plurality of heating cells each independently receiving power supply, the heating cells being disposed on the base and arranged in a longitudinal direction of the base. Each of the heating cells includes a plurality of lateral wires extending in substantially parallel with the longitudinal direction of the base and a plurality of oblique wires tilted relative to the lateral wires.

Classes IPC  ?

• H05B 1/02 - Dispositions de commutation automatique spécialement adaptées aux appareils de chauffage
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/00 - Chauffage par résistance ohmique
• H05B 3/03 - Électrodes
• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes
• H05B 3/26 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes non flexibles le conducteur chauffant monté sur une base isolante
• H05B 3/46 - Éléments chauffants ayant la forme de tiges ou de tubes non flexibles le conducteur chauffant monté sur une base isolante

Abrégé

The present invention provides: a heater in which heat generation performance at the boundaries between a plurality of heat-generating cells is improved such that the uniformity of heat in the entire heater is improved; and a fixing device, an image formation device, and a heating device which each comprise this heater. Provided is a heater characterized in that heat-generating cells that are separated by a boundary line are arranged side-by-side on a substrate, said heater comprising resistive heating wires which are respectively formed in each heat-generating cell, in each of which parallel wiring and turn-back wiring are connected, and the entirety of each of which has a zig-zag shape, said parallel wiring being a plurality of lines formed in parallel, said turn-back wiring being formed such that the parallel wiring turns back in the vicinity of the boundary line between adjacent heat-generating cells, wherein: in adjacent heat-generating cells, the resistive heating wire of one heat-generating cell has an extending part that is formed such that the parallel wiring extends past the boundary line, and in the resistive heating wire of the other heat-generating cell, the wiring at a position opposite from the extending part is shortened or changed in shape so as to maintain electrical insulation from the extending part; and the resistive heating wires of adjacent heat-generating cells have extending parts in an alternating manner along the boundary line direction.

Classes IPC  ?

• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/00 - Chauffage par résistance ohmique

Abrégé

Provided is a heater that is excellent in heat equalizing property even when being narrow in a sweep direction. Also provided are a fixing device, an image-forming device, and a heating device each including such a heater. A heater is configured to heat an object to be heated in such a manner that at least one of the object to be heated and the heater is swept with the heater disposed opposite the object to be heated. The heater includes a base having a rectangular shape and a plurality of heating cells each independently receiving power supply, the heating cells being disposed on the base and arranged in a longitudinal direction of the base. Each of the heating cells includes a plurality of lateral wires extending in substantially parallel with the longitudinal direction of the base and a plurality of oblique wires tilted relative to the lateral wires.

Classes IPC  ?

• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 1/02 - Dispositions de commutation automatique spécialement adaptées aux appareils de chauffage
• H05B 3/00 - Chauffage par résistance ohmique
• H05B 3/03 - Électrodes
• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes
• H05B 3/26 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes non flexibles le conducteur chauffant monté sur une base isolante
• H05B 3/46 - Éléments chauffants ayant la forme de tiges ou de tubes non flexibles le conducteur chauffant monté sur une base isolante

Abrégé

1131113113233.

Classes IPC  ?

• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes
• H05B 3/46 - Éléments chauffants ayant la forme de tiges ou de tubes non flexibles le conducteur chauffant monté sur une base isolante

Abrégé

Provided is a heater 1 that heats an object to be heated, in a state in which the heater is facing the object to be heated, by sweeping the object to be heated and/or the heater, wherein the heater comprises: a base 11; a heat generating layer 12 that is disposed on one surface 11a side of the base 11; and a heat equalizing layer 13 that is disposed in a space between the base 11 and the heat generating layer 12 and/or on the other surface 11b side of the base 11, and that is formed of a material having a higher thermal conductivity than the material that constitutes the base 11. Due to this configuration, fluctuations in heat caused by the heat generating layer are unlikely to influence a heating surface, and thus the heater achieves excellent heat uniformity. Further provided are a fixing device equipped with the heater, an image forming device, and a heating device.

Classes IPC  ?

• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur

Abrégé

The purpose of the present invention is to provide a heater that has superior heat uniformity even in a heater that is narrow in a sweep direction, a fixing device, an image-forming device, a heating device, and a method for manufacturing a heater. The present invention is provided with a base 11 and, on the base, a plurality of resistive heating wires that are each supplied with power, the resistive heating wires are each formed by joining, in a zigzag manner, at least three rows of lateral wiring sections X arranged in a sweep direction D1 in the order of a first row, a second row, and a third row and longitudinal wiring sections Y connecting between the lateral wiring sections, and at least one resistive heating wire of the resistive heating wires has either a pattern P1, in which the second row lateral wiring section X2 is shorter than the first row lateral wiring section X1 and the third row lateral wiring section X3, or a pattern P2, in which the second row lateral wiring section X2 is longer than the first row lateral wiring section X1 and the third row lateral wiring section X3.

Classes IPC  ?

• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/00 - Chauffage par résistance ohmique
• H05B 3/14 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur caractérisés par la composition ou la nature du matériau conducteur le matériau étant non métallique
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes

Abrégé

The present invention provides: a heater which is provided with a plurality of resistance heating wirings for generating heat by energization, and for which a resistance value of each of the resistance heating wirings has been corrected; a fixing device, image formation device, and heating device provided with the heater; and a method for producing the heater. This heater is provided with a plurality of heat generation units (10) disposed on a base body (11), and is provided with: two power-supplying wirings (13a, 13b) that are separated for each of the heat generation units and are composed of electroconductive materials provided so as to be separated from one another; a resistance heating wiring (12) laid so as to connect each of the power-supplying wirings using a resistance heating material, in each of the heat generation units; a correction bridge (14) with which an electroconductive material connects between two points of the resistance heating wirings and/or between one point of the resistance heating wirings and the power-supplying wirings, if a resistance value of the resistance heating wirings measured for each of the heat generation units exceeds a predetermined range; and a power-supplying bridge (15) with which an electroconductive material connects sets of one power-supplying wiring of the heat generation units and sets of the other power-supplying wiring of the heat generation units.

Classes IPC  ?

• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes

Abrégé

[Problem] To provide a heater capable of saving energy and shortening a heating and cooling cycle in which the rate of temperature increase is high and cooling can occur within a short period of time. [Solution] The present invention is provided with a heat generation plate (10) and a reflection plate (20). The heat generation plate is disposed on a front surface side (1a) so as to radiate heat. The reflection plate is set apart from the heat generation plate (10) on a back surface (1b) side of the heat generation plate (10). The heat generation plate (10) is provided with a substrate (11) and a resistance heat generation wire (12), the resistance heat generation wire being disposed on one surface of the substrate. The reflection plate (20) is disposed substantially in parallel to the heat generation plate (10), and includes a reflection surface (20a) on the front surface (1a) side, the reflection surface reflecting infrared rays.

Classes IPC  ?

• H05B 3/00 - Chauffage par résistance ohmique
• H05B 3/02 - Chauffage par résistance ohmique Détails
• H05B 3/20 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes

Abrégé

The purpose of the present invention is to provide a heater which is equipped with a plurality of cell patterns comprising resistive heating wiring connected in parallel and is capable of detecting burn-out of cell patterns, and to provide a fixation device, an image formation device, and a heating device equipped with the heater. This heater (1) is equipped with a base (11), resistive heating wiring (12) that is provided on the base (11), and burn-out detection wiring (13) that is provided on the base (11) while insulated from the resistive heating wiring (12). The resistive heating wiring (12) has multiple cell patterns (121) that have substantially the same heat-generating characteristics and are electrically connected in parallel to one another. The burn-out detection wiring (13) has a sensing section (131) with a temperature-dependent resistance value for each of the cell patterns (121) and is formed as a single body by electrically connecting the sensing sections (131) together. In the event of any one of the cell patterns (121) burning out, the resistance of the burn-out detection wiring (13) changes due to the change in temperature caused by the burn-out.

Classes IPC  ?

• H05B 3/00 - Chauffage par résistance ohmique
• G03G 15/20 - Appareils pour procédés électrographiques utilisant un dessin de charge pour le fixage, p. ex. par la chaleur

Abrégé

In order to prevent malfunctioning of a heater due to the connection work for the power supply wiring, this power supply structure for a heater is equipped with: a substrate comprising an electroconductive material; an insulation layer formed on the surface of the substrate; a resistance heating layer that is formed on the surface of the insulation layer and that generates heat when power is supplied; and power supply electrode parts provided on the surface of the insulation layer and electrically connected to the resistance heating layer. In addition, this power supply structure is characterized by being equipped with: terminal parts, which are arranged at a position on the substrate where the insulation layer is not formed, or on a relay board attached to the substrate, and which are provided such that the wiring for supplying power to the heater from the outside can be connected while being electrically insulated with respect to the substrate; and conductor parts, which electrically connect the power supply electrode parts and the terminal parts, with at least a portion of these conductor parts having flexibility.

Classes IPC  ?

• H05B 3/02 - Chauffage par résistance ohmique Détails

Abrégé

This heater is provided with: a long base section (11); a resistance heating wiring section (15) formed on the surface of the base section (11) or inside the base section (11), and formed in a state of electrical insulation from said base section, said resistance heating wiring section (15) having multiple parallel wires that electrically heat; and at least two power supply terminal sections (17) that, to supply power to the resistance heating wiring section (15), electrically connect one terminal section (17) and the other terminal section (17) via the resistance heating wiring section (15). The resistance heating wiring section (15) contains a material with a temperature coefficient of resistance of between 500 and 4,400 ppm/°C, and the parallel wires contain a sloping rectangular pattern.

Classes IPC  ?

• H05B 3/10 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur
• H05B 3/12 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur caractérisés par la composition ou la nature du matériau conducteur
• H05B 3/16 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur le conducteur étant monté sur une base isolante