CN219141246U

CN219141246U - Bending liquid cooling plate and heat dissipation device

Info

Publication number: CN219141246U
Application number: CN202222848295.0U
Authority: CN
Inventors: 刘迎春; 李乐; 丁磊
Original assignee: Changzhou Hengchuang Heat Management Co ltd
Current assignee: Changzhou Hengchuang Thermal Management System Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-06-06
Anticipated expiration: 2032-10-26

Abstract

The utility model provides a bending liquid cooling plate and a heat dissipating device, comprising a first cooling part, a second cooling part and a transition part, wherein the first cooling part is provided with a first cooling cavity; the second cooling part is provided with a second cooling cavity; the transition part comprises a first bending part positioned at the inner side of the bending liquid cooling plate and a second bending part positioned at the outer side of the bending liquid cooling plate, a transition cavity is formed between the first bending part and the second bending part, the transition cavity is communicated with the first cooling cavity and the second cooling cavity, the transition part also comprises a flat pipe arranged in the transition cavity, and a pipeline communicated from the first cooling part to the second cooling part is arranged at the center of the flat pipe; the cooling liquid flows from the first cooling portion to the second cooling portion through the pipe. The utility model sets the flat tube with the center conducted in the transition part, so that the flat tube can provide supporting force for the transition part and meanwhile does not influence the circulation of cooling liquid.

Description

Bending liquid cooling plate and heat dissipation device

Technical Field

The utility model relates to the field of heat dissipation, in particular to a bending liquid cooling plate and a heat dissipation device.

Background

The bending type liquid cooling plate is formed into at least two side surfaces, or a box body structure or a box body local structure by stamping, bending or other modes relative to the flat type liquid cooling plate; at least two intersected side surfaces of the bending type liquid cooling plate are provided with communicated liquid cooling flow channels.

When the conventional bending liquid cooling plate is formed by stamping or bending, when bending is large, a pipeline at the bending position is easy to generate fold deformation and even crack, and when the bending angle is insufficient, the bending part is difficult to be attached to heating devices such as a battery cell, so that the performance of the liquid cooling plate is reduced.

Therefore, it is necessary to provide a bending liquid cooling plate, so that the pipeline at the bending position can still be conducted and work normally when the bending angle is large.

Disclosure of Invention

The utility model aims to provide a bending liquid cooling plate and a heat dissipating device, so that a pipeline at the bending position can still be conducted and work normally when the bending angle is large.

The utility model provides a bending liquid cooling plate which comprises a first cooling part, a second cooling part and a transition part, wherein the first cooling part is provided with a first cooling cavity; the second cooling part is provided with a second cooling cavity; the transition part comprises a first bending part positioned at the inner side of the bending liquid cooling plate and a second bending part positioned at the outer side of the bending liquid cooling plate, a transition cavity is formed between the first bending part and the second bending part, the transition cavity is communicated with the first cooling cavity and the second cooling cavity, the transition part also comprises a flat pipe arranged in the transition cavity, and a pipeline communicated from the first cooling part to the second cooling part is arranged at the center of the flat pipe; the cooling liquid flows from the first cooling portion to the second cooling portion through the pipe.

Further, the height of the transition cavity is h, the width of the transition cavity is z, the bending radius is r, the bending included angle is theta, the width of the flat tube is w, the thickness of the flat tube is d, the length of the flat tube is l, l is more than or equal to pi (r+d) theta/180, d=h, and r > d.

Further, a plurality of reinforcing ribs are arranged in the flat pipe, are perpendicular to the first bending part and divide the pipeline into a plurality of flow paths.

Further, the bending liquid cooling plate comprises a first substrate and a second substrate which are arranged in a stacked mode, and the flat tube is arranged between the first substrate and the second substrate through brazing and is arranged at a position, to be bent, of the first substrate and the second substrate.

Further, a concave part forming a flow channel structure is arranged on the first substrate, a convex part is arranged on the second substrate corresponding to the concave part, and a first cooling cavity, a second cooling cavity and a transition cavity are formed between the concave part and the convex part.

Further, islands are arranged in the first cooling cavity and the second cooling cavity.

Further, the edge of the island smoothly transitions with the first cooling cavity and the second cooling cavity.

The utility model also provides a heat dissipating device which comprises the bending liquid cooling plate.

After the technical scheme is adopted, the utility model has the following positive effects: the utility model sets the flat tube with the center conducted in the transition part, so that the flat tube can provide supporting force for the transition part and meanwhile does not influence the circulation of cooling liquid.

Drawings

The utility model is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the utility model when not bent.

Fig. 3 is an exploded view of the section of the A-A plane of fig. 2.

Fig. 4 is an enlarged view at C of fig. 3.

FIG. 5 is a schematic view of the section of the B-B plane of FIG. 2.

Reference numerals illustrate:

a first cooling unit 1 and a first cooling chamber 11;

a second cooling unit 2 and a second cooling chamber 21;

transition part 3, first bending part 31, second bending part 32, transition cavity 33, flat tube 34, pipeline 341 and reinforcing rib 342;

a first substrate 4, a recess 41;

a second substrate 5, a boss 51;

island 6;

a liquid inlet 7;

and a liquid outlet 8.

Detailed Description

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

Embodiments of the utility model are further elaborated below in connection with the drawings of the specification.

Referring to fig. 1 to 5, a bending liquid cooling plate comprises a first cooling part 1, a second cooling part 2 and a transition part 3, wherein the first cooling part 1 is provided with a first cooling cavity 11; the second cooling part 2 is provided with a second cooling cavity 21; the transition part 3 comprises a first bending part 31 positioned at the inner side of the bending liquid cooling plate and a second bending part 32 positioned at the outer side of the bending liquid cooling plate, a transition cavity 33 is formed between the first bending part 31 and the second bending part 32, the transition cavity 33 is communicated with the first cooling cavity 11 and the second cooling cavity 21, the transition part 3 further comprises a flat pipe 34 arranged in the transition cavity 33, and a pipeline 341 communicated from the first cooling part 1 to the second cooling part 2 is arranged at the center of the flat pipe 34; the cooling liquid flows from the first cooling portion 1 to the second cooling portion 2 via the pipe 341.

The height of the transition cavity is h, the width of the transition cavity is z, the bending radius is r, the bending included angle is theta, the width of the flat tube 34 is w, the thickness of the flat tube 34 is d, the length of the flat tube 34 is l, l is more than or equal to pi (r+d) theta/180, d=h, and r > d.

The flat tube 34 is internally provided with a plurality of reinforcing ribs 342, the reinforcing ribs 342 are perpendicular to the first bending portion 31 and divide the pipeline 341 into a plurality of flow paths, and by arranging the reinforcing ribs, the compression resistance of the flat tube 34 is further enhanced, so that the flat tube 34 is ensured not to collapse when being bent.

In this embodiment, the folded liquid cooling plate includes a first substrate 4 and a second substrate 5 that are stacked, the flat tube 34 is disposed between the first substrate 4 and the second substrate 5 by brazing, and is disposed at a position where the first substrate 4 and the second substrate 5 are to be folded, and in other embodiments, the flat tube 34 may be disposed between the first substrate 4 and the second substrate 5 in other manners.

The first substrate 4 is provided with a concave portion 41 forming a flow channel structure, the second substrate 5 is provided with a convex portion 51 corresponding to the concave portion 41, and a first cooling cavity 11, a second cooling cavity 21 and a transition cavity 33 are formed between the concave portion 41 and the convex portion 51.

Island 6 is arranged in the first cooling cavity 11 and the second cooling cavity 21, the edge of the island 6 is in smooth transition with the first cooling cavity 11 and the second cooling cavity 21, and through the island 6, turbulent flow is generated on cooling liquid, so that heat dissipation efficiency is improved.

The bending liquid cooling plate of the embodiment further comprises a liquid inlet 7 communicated with the first cooling cavity 11 and a liquid outlet 8 communicated with the second cooling cavity 21, and heat of a heat source on the bending liquid cooling plate is taken away through the inlet and outlet of the cooling liquid.

When the bending liquid cooling plate of the utility model is manufactured, the first substrate 4 and the second substrate 5 are punched, the concave part 41 with the flow channel structure is formed on the first substrate 4, the convex part 51 corresponding to the concave part 41 is formed on the second substrate 5, the first substrate 4, the flat tube 34 and the second substrate 5 are sequentially overlapped and compounded together through brazing, and at the moment, the flat tube 34 is arranged at the position to be bent of the first substrate 41 and then is bent.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present utility model without departing from the spirit and scope of the utility model. Therefore, it is intended that the present utility model cover the modifications and variations of this utility model provided they come within the scope of the appended claims and their equivalents.

Claims

1. A bending liquid cooling plate is characterized by comprising

A first cooling part provided with a first cooling cavity;

the second cooling part is provided with a second cooling cavity;

the transition part comprises a first bending part positioned at the inner side of the bending liquid cooling plate and a second bending part positioned at the outer side of the bending liquid cooling plate, a transition cavity is formed between the first bending part and the second bending part, the transition cavity is communicated with the first cooling cavity and the second cooling cavity, the transition part also comprises a flat pipe arranged in the transition cavity, and a pipeline communicated from the first cooling part to the second cooling part is arranged at the center of the flat pipe;

the cooling liquid flows from the first cooling portion to the second cooling portion through the pipe.

2. The bent liquid cooling plate according to claim 1, wherein the transition cavity has a height h, a width z, a bending radius r, a bending angle θ, a flat tube width w, a flat tube thickness d, a flat tube length l, l being greater than or equal to pi (r+d) θ/180, d=h, r > d.

3. The bent liquid cooling plate according to claim 1, wherein a plurality of reinforcing ribs are arranged in the flat tube, are perpendicular to the first bending portion, and divide the pipeline into a plurality of flow paths.

4. The bent liquid cooling plate according to claim 1, wherein the bent liquid cooling plate comprises a first substrate and a second substrate which are stacked, and the flat tube is arranged between the first substrate and the second substrate by brazing and is arranged at a position where the first substrate and the second substrate are to be bent.

5. The bending liquid cooling plate according to claim 4, wherein a concave portion forming a flow channel structure is arranged on the first substrate, a convex portion is arranged on the second substrate at a position corresponding to the concave portion, and a first cooling cavity, a second cooling cavity and a transition cavity are formed between the concave portion and the convex portion.

6. The bending liquid cooling plate of claim 1, wherein islands are disposed in each of the first cooling chamber and the second cooling chamber.

7. The bending liquid cooling plate of claim 6, wherein edges of the islands smoothly transition with the first cooling chamber and the second cooling chamber.

8. A heat sink comprising a folded liquid cooling plate according to any one of claims 1 to 7.