摘要:
Disclosed is a radiating matrix and a sealed PTC thermister heater. The radiating matrix includes a cavity body with a containing cavity, a plurality of radiating fins are fixed in the middle of the external surface of the top and the external surface of the bottom of the cavity body; a first positioning rib extending along a length direction of the cavity body is arranged at the upper part and the lower part of the inner wall of the left side of the cavity body in the containing cavity respectively, correspondingly, a second positioning rib extending along a length direction of the cavity body is arranged at the upper part and the lower part of the inner wall of the right side of the cavity body in the containing cavity respectively, the internal surface of the left side of the containing cavity between the two first positioning ribs is an outwards convex arc surface, the internal surface of the right side of the containing cavity between the two second positioning ribs is also an outwards convex arc surface, and the outer wall of the left side and the outer wall of the right side of the cavity body are of a slot-shaped structure extending along the length direction of the cavity body; and an interval between the first positioning ribs and an interval between the two second positioning ribs are both smaller than the thickness of the PTC heating component, an interval between the first positioning rib and the second positioning rib at the upper part and an interval between the first positioning rib and the second positioning rib at the lower part are both smaller than the length of the radiating ribs. The sealed PTC thermister heater according to the embodiments can work for a long term without electrical safety hidden danger.
摘要:
Provided are a heater module for a heater of a fluid infusion apparatus hat is installed on a medical heating device by a cartridge to heat a fluid or blood infused to a patient by a direct heating method, and a manufacturing method thereof. The present invention includes: a laminated structure of an insulation substrate; a resistance pattern laminated on one side of the insulation substrate with a pure metal or an alloy which is a mixture of two or more metals at a predetermined ratio and having a resistance value which is set by a pattern having a length and a cross-sectional area; a first insulator layer coated on an upper surface of the resistance pattern by a predetermined method to protect and insulate the resistance pattern; a conductor layer in which a metal material is deposited on the upper surface of the first insulator layer by a predetermined method; and a thin film protective layer deposited on the upper surface of the conductor layer to provide insulation from the conductor layer, waterproofing, corrosion resistance, and chemical resistance.
摘要:
Um dabei Nachteile des bekannten Standes der Technik zu vermeiden oder zu vermindern und insbesondere die Bedienungsfreundlichkeit zu erhöhen wird vorgeschlagen, dass mindestens von der Vorderkante (14) der Küchen-Arbeitsplatte (12; 412; 512) wegführende, seitliche Randbereiche (28, 29; 428; 528, 529) der Herdplatte (20; 420; 520) eingefasst sind von Rahmenelementen (38, 40, 42; 440; 538; 540) mit einem jeweils neben der Stirnfläche (26; 426; 526) des Randbereichs etwa vertikal aufragenden Steg (48; 448; 548), der vorzugsweise unter der oder auf der Höhe der Oberkante der benachbarten Stirnfläche (26; 426; 526) der Herdplatte (20; 420; 520) endet. Die Vorderund die Hinterkante (30; 530, 535) können rahmenlos bleiben. Jedoch kann auch die Hinterkante (35) mit einem Rahmenelement (42) eingefasst sein, das mit den seitlichen Rahmenelementen (38, 40) eine von oben gesehen U-förmige teilweise Rahmung bildet. Der Vordere Randbereich (30; 530) und eventuell auch der hintere Randbereich (35) der Herdplatte (20; 420; 520) können von der Oberseite zum Rand abfallend verjüngt sein.
摘要:
An electrical heating device with pluggable heating module includes a box body (10) and a heating module (20). The box body (10) has an accommodation space (14) for the liquid (74) contained therein, which is provided with a slot (111) communicating the accommodation space (14). The heating module (20) is received in the slot (111) in a pluggable way and separates the accommodation space into a first chamber (141) and a second chamber (142). The heating module (20) includes a positive temperature coefficient (PTC) heating component (21) and a heat conducting component (22) covering the outside of the PTC heating component (21). By this arrangement, the time for maintaining the electrical heating device (1) can be saved and the liquid (74) heating effect of the electrical heating device (1) can be improved as well.
摘要:
An insulated heater includes a heating unit (100), two thermal diffusion units (200,300) and a heat conduction glue (400). The heating unit (100) includes two electrode plates (111,112) and at least one PTC heating plate (120). The PTC heating plate (120) is sandwiched between two electrode plates (111,112). The thermal diffusion unit (200,300) includes a corrugated metal fin (210,310) and two heat conduction plates (220,320), and the corrugated metal fin (210,310) is sandwiched between two heat conduction plates (220,320). Each thermal diffusion unit (200,300) is attached to one of the electrode plates (111,112) via the heat conduction plate (220,320), and the heat conduction glue (400) is spread between each electrode plate (111,112) and the thermal diffusion unit (200,300) attached to the electrode plate (111,112). The thermal resistance between the thermal diffusion unit (200,300) and the electrode plate (111,112) can decrease by directly binding the thermal diffusion unit (200,300) and the electrode plate (111,112) with the heat conduction glue.
摘要:
The invention relates to a heat exchanger (1), comprising at least one electric resistance heating element (2), in particular at least one PTC element (3), at least two conductors (4), in particular circuit boards (6, 7), which are connected to the at least one electric resistance heating element (2) in an electrically conductive manner in order to conduct electric current through the at least one electric resistance heating element (2) and thereby heat the electric resistance heating element (2), at least one thermally conductive element (11) for transferring heat from the at least one electric resistance heating element (2) to a fluid to be heated, at least one electrically insulating element (22), which electrically insulates the at least two conductors (4), preferably from the at least one thermally conductive element (11), and at least one pipe (18), wherein the at least two conductors (4) and the at least one electric resistance heating element (2) are arranged within a cavity (19) bounded by the pipe (18) and the pipe (18) lies on the at least one electrically insulating element (22) under a compressive force at at least one contact surface (14). The aim of the invention is to operate the heat exchanger with high electric current under high voltage, for example greater than 50 V, without any risk to the surroundings, in particular persons. Said aim is achieved in that the pipe (18) has a greater thickness at the at least one contact surface (14) than outside of the at least one contact surface (14) and a step (17) is formed on the pipe (18) between the contact surface (14) and the region outside of the contact surface (14) as a result of the differing thickness.
摘要:
A radiant device (1) comprises a supporting frame (2) and at least a radiant element (4) having two mutually opposed ends (4a), each being provided with electrical connection terminals (7). The radiant element (4) engages hooking groups (3) of the supporting frame (2) by means of suitable electrical connection elements (9) placed between the ends (4a) and the hooking assemblies (3). The elastic connection elements (9) dampen collisions and/or vibrations, if present, and insulate at the same time the electrical parts of the device (1) both from fluid seepages and from overheating.
摘要:
The present invention involves a type of small-sized pool and PTC heater for liquid heating. The PTC heating component of PTC heater is composed of several heating cores made of PTC ceramic material, completely eliminating fire risk. Meanwhile, PTC heating component external is equipped with at least one layer of insulation and sealing component, which further includes several insulation layers and at least one sealing layer outside the insulation layer, effectively eliminating electricity leakage risk. Two layers of above mentioned insulation and sealing component could meet the insulation requirements specified in IEC standard and UL standard, so it could be used for applications with large power. In addition, the PTC heater has good water route sealing ability, so it could be used for liquid heating in small size pool. The small-sized pool is equipped with PTC heater with several layers of insulation and sealing for liquid heating, safe and reliable.