CN213652365U

CN213652365U - Carbon fiber heat-conducting interface material orientation joint

Info

Publication number: CN213652365U
Application number: CN202022757373.7U
Authority: CN
Inventors: 刘怡; 姚林; 刘明春; 郑杰; 杜洪波; 魏先超; 张开友
Original assignee: Deyang Zhongtan New Material Technology Co ltd
Current assignee: Deyang Zhongtan New Material Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-09
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a carbon fiber heat-conducting interface material orientation joint, including first orientation piece and the second orientation piece of fixed connection, the both ends of first orientation piece are equipped with annular feed inlet and rectangle discharge gate respectively, be equipped with the first orientation passageway that the inner chamber changes to the rectangle from annular in the first orientation piece; and a second orientation channel is arranged in the second orientation piece, one end of the second orientation channel is communicated with the rectangular discharge hole as a material inlet, the other end of the second orientation channel is used as a material outlet, and orientation convex columns are uniformly distributed on the inner wall of the second orientation channel. The utility model discloses can realize the effective orientation of carbon fiber heat conduction interface material under the prerequisite that reduces the energy consumption.

Description

Carbon fiber heat-conducting interface material orientation joint

Technical Field

The utility model relates to a heat conduction interface material technical field especially relates to a carbon fiber heat conduction interface material orientation connects.

Background

With the advent of the 5G era, the phenomenon of high power of electronic and electric equipment is remarkable, and the relative heat management requirement is higher. Nowadays, in order to obtain a material with higher thermal conductivity, the thermal interface material industry starts to introduce a material with ultrahigh thermal conductivity, such as carbon fiber, as a thermal conductive filler. However, carbon fibers have anisotropic properties, and in order to efficiently utilize the thermal conductivity of a material, the material must be oriented.

At present, the orientation method for carbon materials mainly comprises an electric field method, a magnetic field orientation method, a vibration method and a shear leveling method. Among them, the electric field method and the magnetic field orientation method have high degree of orientation, but high energy consumption. For the vibration method and the shear leveling method, the document with the publication number of CN111500070A discloses a carbon fiber oriented thermal interface material and a preparation method thereof in 8/7/2020, and the document adopts a mode that the vibration direction is parallel to the thickness direction of the thermal interface material after the thermal interface material is leveled, so that one-dimensional linear chopped carbon fibers are oriented and arranged along the thickness direction of the thermal interface material, and the oriented arrangement of the carbon fibers along the vibration direction is realized. The document adopts a vibration leveling orientation method, but still has the defect of high energy consumption.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the above-mentioned technical problem that exists among the prior art, provide a carbon fiber heat conduction interface material orientation and connect, the utility model discloses can realize carbon fiber heat conduction interface material effective orientation under the prerequisite that reduces the energy consumption.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a carbon fiber heat conduction interface material orientation connects which characterized in that: the device comprises a first orientation piece and a second orientation piece which are fixedly connected, wherein an annular feeding hole and a rectangular discharging hole are respectively formed in two ends of the first orientation piece, and a first orientation channel with an inner cavity gradually changed into a rectangle from an annular shape is arranged in the first orientation piece; and a second orientation channel is arranged in the second orientation piece, one end of the second orientation channel is communicated with the rectangular discharge hole as a material inlet, the other end of the second orientation channel is used as a material outlet, and orientation convex columns are uniformly distributed on the inner wall of the second orientation channel.

The second orientation piece comprises a groove body, a cover plate and a fastener, the groove body is fixed at the rectangular discharge port of the first orientation piece, and the orientation convex columns are uniformly distributed on the groove body; one side of the cover plate is hinged with the groove body, and the other side of the cover plate is fixedly connected with the groove body through a fastener; the second orientation channel is formed by fixing the cover plate on the groove body.

The orientation convex columns are arranged in multiple rows, and two adjacent rows of orientation convex columns are distributed in a staggered mode.

The orientation convex column is in a water drop shape and is contacted with the cover plate.

The rectangular discharge port is of a rectangular structure, and the second orientation channel is of a rectangular structure.

The annular feed inlet is of a circular structure or an oval structure.

And polytetrafluoroethylene coatings are coated on the inner walls of the first orientation channel and the second orientation channel.

Adopt the utility model has the advantages of:

1. the utility model discloses a main improvement point lies in having set up two orientation pieces that have specific passageway, compares prior art, and the structure is more simple, can reduce the energy consumption effectively. Furthermore, the first orientation channel is gradually changed from a ring shape to a rectangle shape, so that when the carbon fiber heat conduction interface material fluid flows through the first orientation channel of the specific structure, the fluid has different internal and external flow velocities due to the change of the inner diameter of the inner cavity, and an internal shearing force is generated, and the internal shearing force can perform first orientation on the carbon fibers in the fluid in the flow direction. When the fluid passes through the second orientation channel, the obstruction of the orientation post may again orient the carbon fibers in the fluid a second time in the direction of flow. The degree of orientation of the carbon fibers in the fluid can be further improved by the cooperation of the two orientations. The effective orientation of the carbon fiber heat-conducting interface material can be realized on the premise of reducing energy consumption by matching the structures.

2. The utility model discloses set up second orientation piece into open closed structure, be favorable to clearing up second orientation passageway on the one hand, on the other hand is convenient for observe the inside condition of second orientation passageway.

3. The utility model discloses an orientation projection of water droplet shape to make orientation projection dislocation distribution, this structure is favorable to further promoting the orientation effect.

4. The utility model discloses a material adhesion inner wall can be avoided on the one hand to the polytetrafluoroethylene cladding material, and on the other hand can prevent that the material of adhesion from producing the orientation and hindering, can also avoid the material extravagant simultaneously.

Drawings

Fig. 1 is a schematic plan view of the cover plate of the present invention when opened;

FIG. 2 is a schematic plan view of the cover plate of the present invention when closed;

fig. 3 is a schematic perspective view of the present invention;

labeled as: 1. the device comprises a first orientation piece, a second orientation piece, a ring-shaped feed inlet, a rectangular discharge outlet, a first orientation channel, a second orientation channel, a groove body, a cover plate, a second orientation channel, a cover plate, a first orientation convex column, a second orientation convex column, a cover plate, a fastening piece and a fastening piece.

Detailed Description

Example 1

The embodiment discloses a carbon fiber heat-conducting interface material orientation joint, which comprises a first orientation piece 1 and a second orientation piece 2 which are fixedly connected, wherein two ends of the first orientation piece 1 are respectively provided with an annular feed port 3 and a rectangular discharge port 4, a first orientation channel 5 with an inner cavity gradually changed into a rectangle from an annular shape is arranged in the first orientation piece 1, and the first orientation channel 5 can generate an internal tangential force on fluid due to the change of the inner diameter and the shape, so that the carbon fiber in the fluid is oriented in the flowing direction; a second orientation channel 6 is arranged in the second orientation piece 2, one end of the second orientation channel 6 is used as a material inlet and is communicated with the rectangular discharge hole 4, and the size of the material inlet is consistent with that of the rectangular discharge hole 4; the other end is used as a material outlet; in addition, the inner wall of the second orientation channel 6 is uniformly distributed with orientation convex columns 9, and the orientation convex columns 9 can block the fluid, so that the carbon fibers in the fluid are oriented in the flowing direction again.

In this embodiment, since the first orientation member 1 has a special structure, the first orientation member 1 can be prepared by using two rectangular sheets and two arc-shaped sheets. Specifically, the one end of two arc pieces remains unchanged for the arc, changes gradually the other end of two arc pieces into the plane earlier gradually, welds two rectangle pieces between two arc pieces again, can obtain the first orientation piece 1 that both ends have annular feed inlet 3 and rectangle discharge gate 4 respectively.

In this embodiment, the second orientation piece 2 is preferably set to be an openable and closable structure, and specifically includes a tank 7, a cover plate 8 and a fastener 10, the tank 7 may be fixed at the rectangular discharge port 4 of the first orientation piece 1 by welding, one side of the cover plate 8 is hinged to the tank 7, and the other side is fixedly connected to the tank 7 through the fastener 10, so that the cover plate 8 may be opened on the tank 7. The second orientation channel 6 is formed by fixing the cover plate 8 on the tank body 7, namely, after covering the cover plate 8, the second orientation channel 6 is formed between the cover plate 8 and the tank body 7. Of course, a corresponding sealing element can be provided between the cover plate 8 and the housing 7 to ensure a better sealing effect of the second orientation element 2.

Furthermore, the orientation convex columns 9 are uniformly distributed on the groove body 7 in multiple rows, and the adjacent two rows of orientation convex columns 9 are distributed in a staggered manner. Preferably, the orientation convex column 9 is in a drop shape, and after the cover plate 8 is covered, the section surface of the orientation convex column 9 is contacted with the cover plate 8, so that the orientation effect on the fluid is better.

In this embodiment, annular feed inlet 3 is circular structure or oval structure, rectangle discharge gate 4 is the rectangle structure, second orientation piece 2 is the cuboid structure, and second orientation passageway 6 is the rectangle structure.

In the practical use process of the embodiment, the fluid material enters through the annular feed port 3, and when the fluid material flows through the first orientation passage 5 with a specific structure, the fluid has different inner and outer flow rates due to the change of the inner diameter of the inner cavity, so that an inscribed force is generated, and the inscribed force can perform first orientation on the carbon fiber in the fluid in the flow direction. Then enters the second orientation channel 6 from the rectangular discharge port 4, and the orientation convex columns 9 in the second orientation channel 6 generate resistance to the fluid, so that the carbon fibers in the fluid can be oriented for the second time in the flowing direction again. The orientation degree of the carbon fibers in the fluid can be effectively improved through the matching of the two orientations. Meanwhile, the energy consumption in the whole orientation process is low, and the energy is greatly saved.

Example 2

On the basis of embodiment 1, the present embodiment has polytetrafluoroethylene coatings on the inner walls of the first orientation channel 5 and the second orientation channel 6. Avoid producing extravagantly because of material adhesion inner wall on the one hand, on the other hand prevents that the material of adhesion from producing the hindrance to the orientation to guarantee better orientation effect.

Any feature disclosed in this specification may, unless stated otherwise, be replaced by alternative features serving the same, equivalent or similar purpose; all of the disclosed features, or all of the method or process steps, may be combined in any combination, except mutually exclusive features and/or steps.

Claims

1. Carbon fiber heat conduction interface material orientation connects its characterized in that: the device comprises a first orientation piece (1) and a second orientation piece (2) which are fixedly connected, wherein an annular feeding hole (3) and a rectangular discharging hole (4) are respectively formed in two ends of the first orientation piece (1), and a first orientation channel (5) with an inner cavity gradually changed into a rectangle from an annular shape is arranged in the first orientation piece (1); a second orientation channel (6) is arranged in the second orientation piece (2), one end of the second orientation channel (6) is communicated with the rectangular discharge hole (4) as a material inlet, the other end of the second orientation channel is used as a material outlet, and orientation convex columns (9) are uniformly distributed on the inner wall of the second orientation channel (6).

2. The carbon fiber thermal interface material orientation joint of claim 1, wherein: the second orientation piece (2) comprises a groove body (7), a cover plate (8) and a fastener (10), the groove body (7) is fixed at the rectangular discharge port (4) of the first orientation piece (1), and orientation convex columns (9) are uniformly distributed on the groove body (7); one side of the cover plate (8) is hinged with the groove body (7), and the other side is fixedly connected with the groove body (7) through a fastener (10); the second orientation channel (6) is formed by fixing a cover plate (8) on the groove body (7).

3. The carbon fiber thermal interface material orientation joint of claim 2, wherein: the orientation convex columns (9) are arranged in multiple rows, and the adjacent two rows of orientation convex columns (9) are distributed in a staggered mode.

4. The carbon fiber thermal interface material orientation joint of claim 2, wherein: the orientation convex column (9) is in a water drop shape, and the orientation convex column (9) is contacted with the cover plate (8).

5. The carbon fiber thermal interface material orientation joint of claim 1, wherein: the rectangular discharge hole (4) is of a rectangular structure, and the second orientation channel (6) is of a rectangular structure.

6. The carbon fiber thermal interface material orientation joint of claim 1, wherein: the annular feed inlet (3) is of a circular structure or an oval structure.

7. The carbon fiber thermal interface material orientation joint of any one of claims 1-6, wherein: the inner walls of the first orientation channel (5) and the second orientation channel (6) are coated with polytetrafluoroethylene coatings.