Unlock instant, AI-driven research and patent intelligence for your innovation.

Pump and electronic apparatus having this pump

a technology of electronic equipment and pump, which is applied in the direction of piston pumps, positive displacement liquid engines, instruments, etc., can solve the problems of rotor magnets being easily corroded by liquid refrigerant, motor performance drops, and the amount of heating during operation tends to increas

Inactive Publication Date: 2005-11-03
KK TOSHIBA
View PDF45 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, in the central processing unit (CPU) for use in an electronic apparatus, a heating amount during operation tends to increase with speeding-up of a process or multi-function.
Therefore, in the pump constituted in this manner, the rotor magnet is easily corroded by the liquid refrigerant.
When the rotor magnet is corroded by the liquid refrigerant, there is a possibility that the performance of the motor drops, the liquid refrigerant is contaminated, and the cooling effect of the refrigerant drops.
Moreover, in the pump described in the Jpn. Pat. Appln. KOKAI Publication No. 11-166500, the stator is molded out of the resin, the vanes constituting the impeller are protruded on the outer periphery of the cylindrical molded rotor, and it is therefore difficult to miniaturize the pump.
Therefore, it is difficult to mount the pump constituted in this manner onto the electronic apparatus constituted by arranging various components in a comparatively dense manner.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pump and electronic apparatus having this pump
  • Pump and electronic apparatus having this pump
  • Pump and electronic apparatus having this pump

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0019] the present invention will be described hereinafter with reference to FIGS. 1 to 7. FIGS. 1 and 2 show a portable computer 1 which is an electronic apparatus. The portable computer 1 comprises a main unit 2, and a display unit 3. The main unit 2 comprises a first housing 10 having a flat box shape. The first housing 10 comprises a bottom wall 11a, an upper wall 11b, a front wall 11c, right and left side walls 11e, 11d, and a rear wall 11f.

[0020] As shown in FIG. 1, the upper wall 11b has a palm rest 12 and a keyboard attaching portion 13. The keyboard attaching portion 13 is disposed behind the palm rest 12. A keyboard 14 is attached to the keyboard attaching portion 13. The front wall 11c, right and left side walls 11e, 11d, and rear wall 11f constitute a peripheral wall along a peripheral direction of the first housing 10.

[0021] As shown in FIG. 2, a plurality of exhaust ports 15 are formed in the peripheral wall of the first housing 10, for example, the rear wall 11f. Th...

second embodiment

[0070] the present invention will be described with reference to FIG. 8.

[0071] A pump 100 disposed in a portable computer 1 of the present embodiment is different from the pump 100 of the first embodiment in a sectional shape of a rotor magnet 103a. That is, in the present embodiment, the rotor magnet 103a is formed in such a manner as to have a flat rectangular sectional shape of the magnet, whose length in a direction crossing a rotation shaft 102a at right angles is greater than that in a direction parallel to the rotation shaft 102a. It is to be noted that another constitution is the same as that of the first embodiment including portions (not shown), and therefore denoted with the same reference numerals, and redundant description is omitted.

[0072] In the pump 100 of the present embodiment, the rotor magnet 103a is formed in such a manner as to have a flat rectangular sectional shape whose length in a direction crossing the rotation shaft 102a at right angles is greater than t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A pump includes: a housing having a heating receiving portion thermally connected to a heat generating element and a pump chamber; a stator; and a rotary member disposed in the pump chamber, and having a stirring portion which stirs a fluid in the pump chamber and a magnet contained within the rotary member.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2004-133537, filed Apr. 28, 2004, the entire contents of which are incorporated herein by reference. BACKGROUND [0002] 1. Field [0003] The present invention relates to a pump disposed in a liquid-cooling type cooling device which cools, using a liquid refrigerant, a heat generating element such as a central processing unit (CPU), and an electronic apparatus comprising this pump. [0004] 2. Description of the Related Art [0005] As a pump, a pump described in Jpn. Pat. Appln. KOKAI Publication No. 2003-343492 has been known. This pump has a concave portion in one end face, and comprises a disc-shaped impeller having a plurality of vanes on the other end face. This impeller has a magnetic field generation portion on an inner periphery of the concave portion. The magnetic field generation portion is constituted by fixing an annula...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04B17/00F04B35/04F04D5/00F04D13/06G06F1/20H01L23/473H05K7/20
CPCF04D13/0673H01L2924/0002H01L2924/00
Inventor TOMIOKA, KENTAROHATA, YUKIHIKO
Owner KK TOSHIBA