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Motor rotator structure of hot water circulating pumpRelated Patent Categories: Pumps, Motor Driven, Common Pump And Motor ChamberMotor rotator structure of hot water circulating pump description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070086901, Motor rotator structure of hot water circulating pump. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application claims priority of Korean patent application No. 2005-22597 filed on Mar. 18, 2005, the content of which is incorporated herein by reference. FIELD OF THE INVENTION [0002] The present invention relates to a motor rotator of a hot water circulating pump, and more particularly, to a motor rotator structure of a hot water circulating pump, for preventing water penetration into a rotator. BACKGROUND OF THE INVENTION [0003] As well known in the art, a hot water circulating pump, a unit for driving an impeller by motor power and forcibly supplying hot water to each use, is being variously used in a whole industry. [0004] A construction of a conventional hot water circulating pump is shown in FIG. 1. [0005] Referring to FIG. 1, the hot water circulating pump 100 includes a stator 112 for receiving an electric current from a coil; a motor housing 114 installed to pass through the stator 112, and inserting a shaft 118 and a rotator 116 that rotate using the electric current applied to the stator 112; and an impeller 122 for rotating in engagement with the shaft 118 and forcibly circulating hot water introduced into an impeller housing 120. [0006] However, the conventional hot water circulating pump 100 causes the following drawback in use. [0007] The hot water (a) introduced into the impeller housing 120 is introduced even into the motor housing 114. Accordingly, the rotator 116 positioned inside the motor housing 114 is always exposed to the hot water (a). In other words, in view of the above characteristic, the rotator 116 has to have a water leakage prevention function for preventing moisture penetration. However, due to absence of the water leakage prevention function, the conventional rotator 116 has a drawback of, with lapse of time, corroding their internal constituent parts and losing their functions. SUMMARY OF THE INVENTION [0008] Accordingly, the present invention is directed to a motor rotator structure of a hot water circulating pump that substantially overcomes one or more of the limitations and disadvantages of the conventional art. [0009] One object of the present invention is to provide a motor rotator structure of a hot water circulating pump, for preventing water penetration into a rotator. [0010] Another object of the present invention is to provide a motor rotator structure of a hot water circulating pump, for preventing disengagement of a sealing cap from both ends of a rotator core. [0011] A further object of the present invention is to provide a motor rotator structure of a hot water circulating pump, in which a sealing cap is formed of silicon having excellent water-tightness. [0012] Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims as well as the appended drawings. [0013] To achieve the above and other objects and advantages, and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a motor rotator structure of a hot water circulating pump, the structure including: a metal pipe whose interior is empty; a rotator core inserted into the metal pipe; and sealing caps fitted into both sides of the rotator core, respectively, wherein the metal pipe is inwardly rolled at both ends such that the sealing caps are compressed and fixed to the rotator core. [0014] In the motor rotator structure, washers are attached to outer surfaces of the sealing caps. [0015] Any one of a drawing method and a seaming method may be selected and used as a method for inwardly rolling the metal pipe. [0016] In other words, in the present invention, the rotator has a water leakage prevention function so that, in use, hot water is prevented from being penetrated into the rotator core and constituent parts of the rotator are prevented from being corroded or damaged. [0017] It is to be understood that both the foregoing summary and the following detailed description of the present invention are merely exemplary and intended for explanatory purposes only. BRIEF DESCRIPTION OF THE DRAWINGS [0018] The accompanying drawings, which are included to aid in understanding the invention and are incorporated into and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings: [0019] FIG. 1 illustrates a construction of a conventional hot water circulating pump; Continue reading about Motor rotator structure of hot water circulating pump... Full patent description for Motor rotator structure of hot water circulating pump Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Motor rotator structure of hot water circulating pump patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Motor rotator structure of hot water circulating pump or other areas of interest. ### Previous Patent Application: Air barrel of air compressor Next Patent Application: Pump and method Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Motor rotator structure of hot water circulating pump patent info. 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