Structural improvement of submersible cooling pump

• US 8,328,540 B2
• Filed: 03/04/2010
• Issued: 12/11/2012
• Est. Priority Date: 03/04/2010
• Status: Active Grant

• Current Assignee: Wang, Li-Chuan
• Original Assignee: Wang, Li-Chuan
• Inventors: Wang, Li-Chuan
• Primary Examiner(s): Freay, Charles
• Assistant Examiner(s): COMLEY, ALEXANDER BRYANT
• Application Number:
  US12/717,354
• Publication Number:
  US 20110217193A1
• Time in Patent Office: 1,013 Days
• Field of Search: 417/423.3, 417/423.7, 417/423.14, 417/410.1
• US Class Current: 417/423.3
• CPC Class Codes: F04D 13/08 for submerged use
• CPC Class Codes: F04D 29/628 especially adapted for liquid pumps

Abstract

A structural improvement of submersible cooling pumps, especially a submersible cooling pump that is capable of enhancing the stability and extending service life, comprising a motor set, an impeller set and a stud set, characterized in that in said motor set, there are provided on the motor casing a top plate, disposed on which is a fan with orifices, and a motor cover having sight holes and cross-shaped ventilating holes that spreads all over the cover, disposed on top of said fan, and a protection cover with a small elastic plate provided to cloak said motor cover which is screw fastened to said motor casing; the lower end of said motor casing fits on the upper rim of the trough of a fixing base, and is fastened onto the fixing hole base of said fixing base; on said fixing base an outlet port and shaft hole are provided, and by both sides of said shaft hole an ingress of water and a positioning hole that permits the screw fastening of another element are provided; said impeller set combines and fastening an upper cover and a lower cover to accommodate a set of vanes, wherein an outlet hole is provided by one side, and a fixing hole by the other side, of an inlet hole of said upper cover; and said stud set consists of a duct pipe and a support pipe, both of equal length, of which the support pipe has female thread at each end allowing it to be screw fastened to the positioning hole of said motor set and the fixing hole of said impeller set, respectively.

Claims

1. A structural improvement of submersible cooling pumps, comprising a motor set, an impeller set and a stud set, wherein said motor set has a motor casing, which has two or more screw holes on an upper rim thereof to allow fastening of the motor casing to a top plate by screws;

a fan and a motor cover disposed on said top plate, said motor cover having arrow-shaped sight holes and cross-shaped ventilating holes densely distributed in an area encompassed by the sight holes, said motor cover having through holes on a side for attachment to said top plate along with screw holes on the top plate by screws; and

a fixing base, a bottom of said motor casing fitting on an upper rim of a trough thereof and screw fastened to fixing hole bases thereof, and both sides thereof extending to form positioning flanges;

on said fixing base, an outlet port is provided on one side and an axial hole is in a center for a shaft to extend through, on both sides of the axial hole is an ingress of water and a fixing hole, which allows screw fastening of another component, and a passage in communication with said ingress of water and said outlet port are provided;

a protecting cover is provided on top of said motor cover, said protecting cover having, on an inner side, flexible clips whose positions correspond to positions of the sight holes on said motor cover, said flexible clips having an end extending to form a flexible hook to engage with an inner edge of the sight holes on said motor cover, which has a rim with a height equal to that of said flexible clips, and, also on its inner side, matching poles whose positions correspond to positions of the ventilating holes on said motor cover;

said impeller set consists of a top cover, a set of vanes and a bottom cover, of which the top cover has an inlet hole for the motor shaft to extend through, an outlet hole and a fixing hole each on one different side of said inlet hole, and a plurality of threaded holes;

amid said set of vanes a bearing base is provided to accommodate the motor shaft and allow it to drive the vanes;

said bottom cover has a chamber to accommodate said set of vanes, and threaded holes corresponding to said top cover such that the bottom cover can securely combine with the top cover by screws in an equal number of the threaded holes;

said stud set consists of a duct pipe and a support pipe, both of the same length;

wherein a top end of said duct pipe fits in the ingress of water of the motor set, and a bottom end of the same pipe fits in the outlet hole of the impeller set;

female threads are provided on both ends of said support pipe, through which the support pipe is securely set in place in the positioning hole of the motor set and the fixing hole of the impeller set by screws.

2. A structural improvement of submersible cooling pumps as defined in claim 1, wherein there are provided on the motor casing of said motor set two or more positioning holes that extend through a thickness of a bottom of the motor casing to allow fixing bolts inserted through the top plate to pass through and be fastened to the fixing hole of the fixing base.

3. A structural improvement of submersible cooling pumps as defined in claim 1 or 2, wherein there is provided additionally a filter drum between the impeller set and the motor set;

the fixing base of said motor set has an upper annular groove to allow a top end of the filter drum to fit in;

wherein there are provided on an upper surface of said impeller set a plurality of inlet passages for water, and a lower annular groove is formed around a peripheral of said inlet passages for water to allow a bottom end of the filter drum to fit in;

wherein said filter drum is a one piece component, wherein all surfaces have filter holes provided thereon.

4. A structural improvement of submersible cooling pumps as defined in claim 3, wherein there is provided on an upper surface of the top cover of said impeller set a lower annular groove to allow the bottom end of the filter drum to fit in.