CN215898320U

CN215898320U - Double-side heat dissipation structure for rail transit vehicle

Info

Publication number: CN215898320U
Application number: CN202122269745.6U
Authority: CN
Inventors: 刘振杰; 王政; 李军伟
Original assignee: Anshan Anming Rail Transit Heat Dissipation Equipment Manufacturing Co ltd
Current assignee: Anshan Anming Rail Transit Heat Dissipation Equipment Manufacturing Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-22
Anticipated expiration: 2031-09-18

Abstract

The utility model relates to a double-side heat dissipation structure for a rail transit vehicle, which comprises a Z-shaped heat pipe, a substrate and heat dissipation fins, wherein the Z-shaped heat pipe is of a Z-shaped tubular closed structure, a condensation section and an evaporation section of the Z-shaped heat pipe are arranged in parallel, and the condensation section is communicated with the evaporation section through a bent pipe; the side part of the substrate is provided with a hole, and a condensation section of the Z-shaped heat pipe is fixed in the hole; and a plurality of radiating fins are fixed on the evaporation section of the Z-shaped heat pipe. The advantages are that: the module can be installed simultaneously on the upper surface and the lower surface of the substrate, and compared with the traditional substrate, the number of installed modules is more, and the narrow heat dissipation requirement of an installation area is met.

Description

Double-side heat dissipation structure for rail transit vehicle

Technical Field

The utility model relates to a double-side heat dissipation structure for a rail transit vehicle.

Background

Copper pipe welding is often used in the fields of air conditioning refrigeration, automobiles and other industries. In recent years, due to the vigorous development of the rail locomotive industry, the heat pipe radiator for the vehicle is continuously required to be light in weight, small in size and high in performance. The original L-shaped heat pipe or U-shaped heat pipe can not meet the performance requirement of the heat pipe radiator for the vehicle.

In this background, in order to further enhance the heat dissipation effect of the heat sink, some manufacturers have started to increase the overall heat dissipation effect of the heat sink from the number of fins, the shape of the fins, the number of heat pipes, and the like.

The existing heat dissipation structure is composed of a heat pipe, a base plate (used for installing a heating element) and fins, and is generally connected in a welding mode, the structure can meet the heat dissipation requirements of most heating elements of rail vehicles, but the following problems still occur:

1. the heating element has high heat flow density, the electronic product is miniaturized, the size of the radiator is greatly challenged, and the problems that the substrate is too small, the number of mounting holes is too large, and the heat pipe is not arranged at a sufficient position often occur;

2. for a radiator with a narrow module mounting area, the traditional structure cannot meet the size requirement;

3. the module can be fixed by drilling a single surface of the substrate (used for fixing the module), the heat pipe needs to be welded on the other side by milling a groove, and the number of modules mounted on a single substrate is small.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a double-side heat dissipation structure for a rail transit vehicle, which can realize the installation of modules on two sides of a substrate and meet the heat dissipation requirement of narrow installation area.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a double-side heat dissipation structure for rail transit vehicles comprises a Z-shaped heat pipe, a base plate and heat dissipation fins, wherein the Z-shaped heat pipe is of a Z-shaped tubular closed structure, a condensation section and an evaporation section of the Z-shaped heat pipe are arranged in parallel, and the condensation section and the evaporation section are communicated through a bent pipe; the side part of the substrate is provided with a hole, and a condensation section of the Z-shaped heat pipe is fixed in the hole; and a plurality of radiating fins are fixed on the evaporation section of the Z-shaped heat pipe.

The upper surface and the lower surface of the substrate are provided with mounting holes.

The evaporation sections of the Z-shaped heat pipes are arranged in a staggered mode upwards and downwards.

And the condensation section of the Z-shaped heat pipe is welded in the substrate.

And the evaporation section of the Z-shaped heat pipe is welded with the radiating fin.

Compared with the prior art, the utility model has the beneficial effects that:

a two sides heat radiation structure for track traffic vehicle can be surface installation module about the base plate simultaneously, compares in traditional base plate, and the module quantity of installation is more, satisfies the narrow heat dissipation demand of installation region. Compared with the traditional L-shaped heat pipe, the Z-shaped heat pipe has better heat transfer effect, and can transfer heat generated by the substrate in a narrow space to an externally-connected spacious space. Because the installation of the Z-shaped heat pipe only needs a deep hole drill to drill a hole, the complicated groove programming through a machining center is not needed as the traditional substrate, the manufacturing difficulty is reduced to a certain extent, and the manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a Z-shaped heat pipe.

Fig. 2 is a schematic structural diagram of the present invention.

In the figure: 1-Z type heat pipe 2-base plate 3-radiating fin.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 1 and 2, the double-side heat dissipation structure for the rail transit vehicle comprises a Z-shaped heat pipe 1, a substrate 2 and a heat dissipation fin 3, wherein the Z-shaped heat pipe 1 is of a Z-shaped tubular closed structure, a condensation section and an evaporation section of the Z-shaped heat pipe 1 are arranged in parallel, and the condensation section is communicated with the evaporation section through a bent pipe; the side part of the substrate 2 is provided with a hole, and the condensation section of the Z-shaped heat pipe 1 is fixed in the hole; and a plurality of radiating fins 3 are fixed at the evaporation section of the Z-shaped heat pipe 1. The upper and lower surfaces of the substrate 2 are provided with mounting holes for mounting modules.

Wherein, the evaporation sections of the Z-shaped heat pipe 1 are arranged in a staggered way upwards and downwards. The condensation section of the Z-shaped heat pipe 1 is welded in the substrate 2, and can also be directly fixed by tight fit. The evaporation section of the Z-shaped heat pipe 1 is welded with the radiating fins 3.

The utility model can install modules on the upper surface and the lower surface of the substrate 2 simultaneously, compared with the traditional substrate 2, the number of the installed modules is more, and the heat dissipation requirement of narrow installation area is met. Compared with the traditional L-shaped heat pipe, the Z-shaped heat pipe 1 has better heat transfer effect and can transfer heat generated by the substrate 2 in a narrow space to an externally-connected spacious space. Because the installation of the Z-shaped heat pipe 1 only needs deep hole drilling, complex groove programming through a machining center is not needed as the traditional substrate 2, the manufacturing difficulty is reduced to a certain extent, and the manufacturing cost is reduced.

Claims

1. A double-side heat dissipation structure for a rail transit vehicle is characterized by comprising a Z-shaped heat pipe, a substrate and heat dissipation fins, wherein mounting holes are formed in the upper surface and the lower surface of the substrate; the Z-shaped heat pipe is of a Z-shaped tubular closed structure, a condensation section and an evaporation section of the Z-shaped heat pipe are arranged in parallel, and the condensation section is communicated with the evaporation section through a bent pipe; the side part of the substrate is provided with a hole, and a condensation section of the Z-shaped heat pipe is fixed in the hole; and a plurality of radiating fins are fixed on the evaporation section of the Z-shaped heat pipe.

2. The double-sided heat dissipation structure for rail transit vehicles according to claim 1, wherein the evaporation sections of the Z-shaped heat pipes are staggered upwards and downwards.

3. The two-sided heat dissipation structure for rail transit vehicles according to claim 1, wherein the condensation section of the Z-shaped heat pipe is welded in the substrate.

4. The double-sided heat dissipation structure for rail transit vehicles according to claim 1, wherein the evaporation section of the Z-shaped heat pipe is welded with a heat dissipation fin.