Hot water circulating pump having water heating unit, and hot water mat using the same

• US 20050279847A1
• Filed: 06/21/2005
• Published: 12/22/2005
• Est. Priority Date: 06/21/2004
• Status: Abandoned Application

• Current Assignee: SM Co., Ltd. (Shinsegae Company Limited)
• Original Assignee: SM Co., Ltd. (Shinsegae Company Limited)
• Inventors: Kim, Ki Ho
• Application Number:
  US11/157,678
• Publication Number:
  US 20050279847A1
• Time in Patent Office: Days
• US Class Current: 237/2.A
• CPC Class Codes: F04D 29/588 cooling or heating the machine F04D29/5886, F04D29/5893 take precedence
• CPC Class Codes: F24D 3/16 mounted on, or adjacent to, a ceiling, wall or floor
• CPC Class Codes: H05B 3/82 Fixedly-mounted immersion heaters
• CPC Class Codes: Y02B 30/00 Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

A hot water circulating pump having a water heating unit, and a hot water mat using the same are provided. The hot water circulating pump is disposed outside of the water heating unit to prevent each part of the circulating pump from being damaged due to water leakage into the circulating pump. The hot water mat is improved in structure to allow the hot water tube to be disposed within the hot water mat, thereby providing simplicity and convenience in assembly.

Claims

1. A hot water circulating pump connected to a hot water mat, and forcibly circulating hot water to the hot water mat using an impeller rotating by a driving force of a motor, the pump comprising:

a housing disposed between the motor and the impeller, and having a heating space for heating water and generating hot water therein therein;

a hot plate attached to a bottom of the housing to heat water, and having a through-hole at its center to introduce the hot water to the impeller; and

a water heating unit having a heater attached to a bottom of the hot plate and heating the hot plate using a PTC (Positive Temperature Coefficient) element, which generates heat by external power.

2. The pump according to claim 1, wherein the heater has a PTC element fixing unit having a slide groove for inserting the PTC element, and the PTC element fixing unit is rounded on its upper portion to have a round surface.

3. The pump according to claim 2, wherein the slide groove has guide jaws projected from the PTC element fixing unit and guiding and placing the PTC element to be in its exact central position, and the slide groove is narrowed and gathered at both sides and between upper and lower surfaces of the PTC element fixing unit.

4. The pump according to claim 1, wherein the hot water mat comprises:

a cushionable bed having a guide through-hole punched and provided in a zigzag shape;

a hot water tube fitted into and along the guide through-hole and connected to the hot water circulating pump, for circulating hot water; and

an unwoven fabric and an outer case sequentially covered on each of upper and lower surfaces of the cushionable bed.

5. The pump according to claim 1, wherein the hot water mat comprises:

a cushionable bed having an insertion groove provided in a zigzag shape;

a hot water tube fitted into the insertion groove and connected to the hot water circulating pump, for circulating hot water; and

an unwoven fabric and an outer case sequentially covered on each of upper and lower surfaces of the cushionable bed.

6. The pump according to claim 1, wherein the hot water mat has a plurality of unitary link chains each having at least one connection through-hole, and

wherein a hot water tube connected to the hot water circulating pump and circulating hot water is fitted into the connection through-hole and interconnects the plurality of unitary link chains with one another.

7. A hot water mat having a hot water circulating pump, the mat comprising:

a cushionable bed having a guide through-hole punched and provided in a zigzag shape;

a hot water tube fitted into and along the guide through-hole and connected to the hot water circulating pump, for circulating hot water; and

an unwoven fabric and an outer case sequentially covered on each of upper and lower surfaces of the cushionable bed.

8. A hot water mat having a hot water circulating pump, the mat comprising:

a cushionable bed having an insertion groove provided in a zigzag shape;

a hot water tube fitted into the insertion groove and connected to the hot water circulating pump, for circulating hot water; and

an unwoven fabric and an outer case sequentially covered on each of upper and lower surfaces of the cushionable bed.

9. A hot water mat having a hot water circulating pump,

wherein the mat has a plurality of unitary link chains each having at least one connection through-hole, and

wherein a hot water tube connected to the hot water circulating pump and circulating hot water is fitted into the connection through-hole and interconnects the plurality of unitary link chains with one another.