US-12624776-B1 - Manifold connection device

US12624776B1US 12624776 B1US12624776 B1US 12624776B1US-12624776-B1

Abstract

A manifold connection device includes a locking connector and a manifold having an inner wall and an outer wall. A threaded hole penetrates the inner wall and the outer wall, has an inner thread, and has an axial line identical to a locking direction. The locking connector includes a threaded section and a main section. The threaded section has an end surface and an outer thread. A flange portion is formed between the threaded section and the main section. The outer thread is screwed with the inner thread. The flange portion abuts against the outer wall. The end surface is aligned with the inner wall or protrudes from the inner wall. A ratio of a length between the end surface and the inner wall in the locking direction to a maximum inner diameter of the manifold in the locking direction is 0 or is less than or equal to 0.1.

Inventors

Chung-Hsien Ting
Yi-Cheng Li

Assignees

KUEN TONG INDUSTRIAL CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20241114

Claims (10)

1 . A manifold connection device, comprising: a manifold, wherein a side of the manifold is provided with a connected portion; an inner side of the connected portion is provided with an inner wall; an outer side of the connected portion is provided with an outer wall; the connected portion has a threaded hole; the threaded hole has an inner thread; two ends of the threaded hole penetrate through the outer wall and the inner wall, respectively; a locking direction is defined; the locking direction is identical to an axial line of the threaded hole; and a locking connector comprising a threaded section, a main section, and a connecting section that are coaxially connected in sequence; an outer diameter of the threaded section is less than an outer diameter of the main section; a flange portion is formed between the threaded section and the main section; the threaded section has an end surface; an outer thread is provided around the threaded section; the outer thread is screwed with the inner thread of the threaded hole; the flange portion abuts against a part of the outer wall adjacent to the threaded hole; the end surface is either aligned with the inner wall or protrudes out of the inner wall; a ratio of a length between the end surface and the inner wall in the locking direction to a maximum inner diameter of the manifold in the locking direction is equal to 0 or is less than or equal to 0.1; wherein an adhesive layer is provided between the inner thread and the outer thread; an adhesive structure is adhered to the end surface and a part of the inner wall adjacent to the threaded hole; the adhesive structure is annular and is connected to the adhesive layer.
2 . The manifold connection device as claimed in claim 1 , wherein the length between the end surface and the inner wall in the locking direction is greater than or equal to 0 mm and is less than or equal to 3 mm.
3 . The manifold connection device as claimed in claim 2 , wherein a ratio of the length between the end surface and the inner wall in the locking direction to a length between the outer wall and the inner wall in the locking direction is less than 0 or less than or equal to 0.9.
4 . The manifold connection device as claimed in claim 1 , wherein the adhesive structure has an inner peripheral edge and an outer peripheral edge; the inner peripheral edge is connected to the end surface; the outer peripheral edge is connected to the part of the inner wall adjacent to the threaded hole.
5 . The manifold connection device as claimed in claim 1 , wherein a groove is formed on the flange portion; a seal ring is disposed on the groove; the seal ring abuts against the part of the outer wall adjacent to the threaded hole.
6 . The manifold connection device as claimed in claim 1 , wherein the outer thread is a sawtooth thread.
7 . The manifold connection device as claimed in claim 1 , wherein a surface of the outer thread and/or a surface of the inner thread are/is a roughened surface.
8 . The manifold connection device as claimed in claim 1 , wherein a cross-section of the manifold is in a rectangular shape; the connected portion is provided on a plate on a front side of the manifold; both the outer wall and the inner wall are flat and straight surfaces.
9 . The manifold connection device as claimed in claim 1 , wherein an outer peripheral surface of the main section is provided with a plurality of clamping surfaces; the plurality of clamping surfaces are provided around the outer peripheral surface of the main section and are arranged by intervals.
10 . The manifold connection device as claimed in claim 1 , wherein a through hole is provided in the locking connector; the through hole communicates with an inner portion of the manifold; a part of the through hole corresponding to the connecting section forms a tapered portion.

Description

BACKGROUND OF THE INVENTION Technical Field The present invention relates generally to a connection device of a cooling pipeline, and more particularly to a manifold connection device. Description of Related Art A conventional connector is used for supplying a coolant from a manifold to a datacenter electronic component. For example, American patent U.S. Pat. No. 10,863,652 “Self-installing connections for rack liquid cooling” discloses that two manifolds connected to a heat exchanger are disposed in a rack, wherein one of the two manifolds is adapted to transport a coolant to at least one datacenter electronic component, and the other manifold is adapted to receive the coolant that has passed through the at least one datacenter electronic component. A self-installing connector is connected between each of the manifolds and the at least one datacenter electronic component. The self-installing connector includes a manifold coupling and a component coupling that are detachably connected to each other. The component coupling is fixed to the at least one datacenter electronic component and communicates with a liquid cooling system. When the at least one datacenter electronic component is mounted in a rack, the manifold coupling of the self-installing connector penetrates through the manifold, wherein an opening is formed in the manifold and an end of the manifold coupling is fixed in the opening. As the component coupling and the manifold coupling could be detached from each other, the at least datacenter electronic component is detachable relative to the rack, thereby facilitating the maintenance of the at least one datacenter electronic component. As the manifold coupling of the self-installing connector is required to pass through the opening, which is formed by the penetration of the manifold coupling, for fixing, a large part of an inner end of the manifold coupling extends into the manifold, so that the self-installing connector forms a protruding portion in the manifold. The protruding portion of the self-installing connector in the manifold interferes with the coolant flowing in the manifold, so that a turbulence of the coolant is resulted around the inner end of the self-installing connector, thereby obstructing the flow of the coolant and trapping heat. As a result, the heat dissipation effect of the coolant is affected. BRIEF SUMMARY OF THE INVENTION In view of the above, the primary objective of the present invention is to provide a manifold connection device, wherein a threaded hole is formed on a manifold for screwing with a locking connector; an inner end of the locking connector is either aligned with an inner wall of the manifold or protrudes out of the inner wall; such design could reduce turbulence generated as a liquid flow in the manifold and the locking connector, thereby preventing interference with a heat dissipation effect of a coolant when the manifold is used to transport the coolant. The present invention provides a manifold connection device including a manifold and a locking connector. A side of the manifold is provided with a connected portion. An inner side of the connected portion is provided with an inner wall. An outer side of the connected portion is provided with an outer wall. The connected portion has a threaded hole. The threaded hole has an inner thread. Two ends of the threaded hole penetrate through the outer wall and the inner wall. A locking direction is defined. The locking direction is identical to an axial line of the threaded hole. The locking connector includes a threaded section, a main section, and a connecting section that are coaxially connected in sequence. An outer diameter of the threaded section is less than an outer diameter of the main section. A flange portion is formed between the threaded section and the main section. The threaded section has an end surface. An outer thread is provided around the threaded section. The outer thread is screwed with the inner thread of the threaded hole. The flange portion abuts against a part of the outer wall adjacent to the threaded hole. The end surface is either aligned with the inner wall or protrudes out of the inner wall. A ratio of a length between the end surface and the inner wall in the locking direction to a maximum inner diameter of the manifold in the locking direction is equal to 0 or is less than or equal to 0.1. With the aforementioned design, as the ratio of the length between the end surface and the inner wall in the locking direction to the maximum inner diameter of the manifold in the locking direction is equal to 0 or is less than or equal to 0.3, the end surface of the locking connector does not protrude from the inner wall or the length between the end surface of the protruding locking connector and the inner surface in the locking direction is small, thereby reducing the turbulence at the position of the threaded section aligned with the inner wall or protruding from the inner wall. In this wa