Linear Motor Cooling Module

Patent metadata

Field	Value
Publication number	US-2025175041-A1
Application number	US-202318520267-A
Country	US
Kind code	A1
Filing date	Nov 27, 2023
Priority date	Nov 27, 2023
Publication date	May 29, 2025
Grant date	—

Abstract

In a linear motor cooling module provided by the invention, mainly at least one spoiler element is provided in a flow channel, the spoiler element has a first protrusion and a second protrusion that are staggered with each other, each of the protrusions extends toward a center of the flow channel in opposite directions, so that a cooling fluid flowing through the spoiler element is blocked by the first protrusion and the second protrusion respectively, thereby forming a turbulence to improve uneven temperature distribution and poor cooling effect.

First claim

What is claimed is:

1 . A linear motor cooling module comprising:
a main body having a first plate part and a second plate part, and a first end face of the first plate part and a second end face of the second plate part overlapping with each other in opposite directions along a direction of a virtual first axis; a flow channel provided in the main body, a shape of the flow channel being defined between the first end face and the second end face, and the flow channel having a predetermined height (T) on the first axis; and at least one spoiler element located in the flow channel and having a first protrusion and a second protrusion, the first protrusion protruding from the first end face and extending with a first height (t f ) toward the second end face along a direction of the first axis, and a first flow guide space being formed between an extended end of the first protrusion and the second end face, forward projections of the second protrusion and the first protrusion on the second end face along the first axis being protrudingly disposed on the second end face in a partially staggered manner, and the second protrusion extending with a second height (t r ) toward the first end face along a direction of the first axis, and a second flow guide space being formed between an extended end of the second protrusion and the first end face; wherein a sum of the first height (t f ) and the second height (t r ) is less than or equal to the height (T) of the flow channel; wherein contour shapes of the first protrusion and the second protrusion are symmetrical to each other, and the first protrusion and the second protrusion respectively comprise a first end, a second end and a connecting portion between the first end and the second end, a forward projection of the first end of the first protrusion on the second end face partially overlaps with the first end of the second protrusion, a forward projection of the second end of the first protrusion on the second end face and the second end of the second protrusion are staggered from each other, and a first flow guide plane is respectively provided at two back end sides of the first protrusion and the second protrusion.

2 . The linear motor cooling module as claimed in claim 1 , wherein the flow channel further has a predetermined length (L) on a virtual second axis, and a predetermined width (W) on a virtual third axis, provided for an external cooling fluid to flow in the flow channel, the second axis and the third axis are perpendicular to the first axis respectively, and the second axis and the third axis are parallel to a plane formed by the first end face or the second end face respectively.

3 . The linear motor cooling module as claimed in claim 2 , wherein a first included angle is provided between a connection line between the first end of the first protrusion and the second end of the first protrusion and an imaginary line of a geometric center of an overlap part between the first protrusion and the second protrusion extending along the second axis, and the first included angle is between 35° and 65°, a second included angle is provided between a connection line between the first end of the second protrusion and the second end of the second protrusion and an imaginary line of a geometric center of an overlap part between the first protrusion and the second protrusion extending along the second axis, and the second included angle is between 35° and 65°.

4 . The linear motor cooling module as claimed in claim 2 , wherein the first end of the first protrusion and the first end of the second protrusion are respectively a first circular structure on a cross section of the second axis, and the first circular structures have a same radius (Rt), and the radius (Rt) and the width (W) of the flow channel satisfy the following formula:

Rt
/
W

≦

18
⁢
%

,

and
⁢

Rt

≧

0.5

mm
.

5 . The linear motor cooling module as claimed in claim 4 , wherein a forward projection of the first circular structure of the first protrusion on the second end face along the first axis is in tangent with the first circular structure of the second protrusion, and a distance (Wg) between centers of curvature of the first circular structures, and the radius (Rt) of the first circular structure satisfy the following formula:

Wg
≦

2
*
Rt

-
1

,

and Wg is not 0.

6 . The linear motor cooling module as claimed in claim 4 , wherein a distance (Y) between the second end of the first protrusion and the second end of the second protrusion, the width (W) of the flow channel, the radius (Rt) of the first circular structure, and the distance (Wg) between centers of curvature of the first circular structures satisfy the following formula:

2
*
Rt

+
Wg

≦
Y
≦

W
.

7 . The linear motor cooling module as claimed in claim 2 , wherein the spoiler element is located in a section where the length (L) of the flow channel extending in a direction of the second axis being greater than or equal to the width (W) of the flow channel.

8 . The linear motor cooling module as claimed in claim 2 , wherein the flow channel comprises a first linear section and a second linear section adjacent connected to the first linear section, the first linear section extends along a direction of the second axis, and a direction in which the second linear section extends has a deflection angle (θ) relative to the second axis, when the deflection angle (θ), a length (L 1 ) of the first linear section, a length (L 2 ) of the second linear section, and the width (W) of the flow channel satisfy the following formula, then the spoiler element is enabled to be located in the first linear section or the second linear section;

θ
<

3
⁢
°

,

L
⁢
1

+

L
⁢
2

≧

W
.

9 . The

Assignees

• Hiwin Mikrosystem Corp

Inventors

• Yu Mu-Kai
• Shiao Ruei-Bin
• Chi Cheng-Te

Classifications

• H02K5/203

  specially adapted for liquids, e.g. cooling jackets · CPC title

• H02K2213/03

  Machines characterised by numerical values, ranges, mathematical expressions or similar information · CPC title

• H02K41/02

  Linear motors; Sectional motors · CPC title

• H02K1/20 Primary

  with channels or ducts for flow of cooling medium · CPC title