CN215379574U - A flexible high-performance thermal cable assembly with adjustable assembly preload - Google Patents
A flexible high-performance thermal cable assembly with adjustable assembly preload Download PDFInfo
- Publication number
- CN215379574U CN215379574U CN202120778540.8U CN202120778540U CN215379574U CN 215379574 U CN215379574 U CN 215379574U CN 202120778540 U CN202120778540 U CN 202120778540U CN 215379574 U CN215379574 U CN 215379574U
- Authority
- CN
- China
- Prior art keywords
- connecting piece
- cold chain
- holes
- phi
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Springs (AREA)
Abstract
The patent discloses a flexible high performance heat conduction cable subassembly with adjustable assembly pretightning force. One end of a flexible graphite cold chain in the assembly, which is provided with six phi 3.5 through holes, is connected with the upper connecting piece and the lower connecting piece; the lower connecting piece is provided with six phi 3.5 through holes, and the horizontal part is contacted with the flexible graphite cold chain; the upper connecting piece and the lower connecting piece are connected through six M3 screws; the lower part of the heating component is contacted with the limiting plate, and the upper part of the heating component is contacted with the flexible graphite cold chain; the two U-shaped limiting clamps are placed in the two clamping grooves of the limiting plate, and the end parts of the two U-shaped limiting clamps penetrate through the four phi 4.5 through holes of the flexible graphite cold chain; the pressing plate penetrates through the end parts of the two U-shaped limiting clamp clamps and is in contact with the flexible graphite cold chain; the four pre-tightening springs penetrate through the end part of the U-shaped limiting clamp and are in contact with the pressing plate; and after the four pre-tightening springs are tightly pressed by the fastening nut, the heating components of the flexible graphite cold chain are connected in a pre-tightening manner. The flexible high-performance heat conducting cable assembly has the advantages of light weight, high heat conductivity, flexible vibration isolation and adjustable assembling pre-tightening force.
Description
Technical Field
The invention relates to the field of heat transmission of a space vehicle heating unit and ground heating equipment, in particular to a heat transmission assembly which is strict in connection stress control, has the requirements on assembly pretightening force adjustment and vibration isolation, and is light in weight and high in heat transmission efficiency.
Background
The spacecraft low-temperature optical system has high sensitivity to assembly stress, and a heat transfer assembly required to be used in the refrigeration process of the optical system has the functions of high heat conductivity, flexible vibration isolation and adjustable assembly pretightening force, so that the spacecraft low-temperature optical system is suitable for the mechanical impact environment in the launching process of the spacecraft and avoids the influence of the assembly stress on the performance of the optical assembly. In the aspect of heat dissipation of heating units such as ground electronic power equipment, especially in the aspect of heat dissipation of heating electronic components requiring strict control on assembly stress and in the occasions having special requirements on isolation of environmental mechanical vibration in the heat transfer process, a heat transfer component which is light in weight, flexible and efficient in heat transfer and adjustable in assembly pretightening force is required to carry out heat transfer on a heating component or a cooling component.
Disclosure of Invention
The utility model provides a flexible high performance heat conduction cable subassembly with adjustable assembly pretightning force which characterized in that: the device comprises an upper connecting piece 1, a lower connecting piece 2, a flexible graphite cold chain 3, a U-shaped limiting clamp 4, a limiting plate 5, a pressing plate 6, a pre-tightening spring 7, a fastening nut 8 and a heating component 9.
The method is characterized in that: the flexible graphite cold chain 3 of the high-performance heat conducting cable component with adjustable assembling pre-tightening force is composed of an upper layer of copper foil 3-1 with the thickness of 0.1mm and a middle layer of pyrolytic graphite sheet 3-2, through holes are formed in two ends of the flexible graphite cold chain 3, wherein one end connected with a heating component 9 is provided with four phi 4.5 through holes, and the other end is provided with six phi 3.5 through holes. One end of the flexible graphite cold chain 3 with six phi 3.5 through holes is connected with the upper connecting piece 1 and the lower connecting piece 2. Six M3 threaded holes 1-2 are arranged at the connecting part of the upper connecting piece 1 and the flexible graphite cold chain 3, and six upper connecting piece phi 3.5 through holes 1-1 are arranged at the other part of the upper connecting piece 1. The lower connecting piece 2 is provided with six lower connecting piece phi 3.5 through holes 2-1, and the horizontal part is contacted with the flexible graphite cold chain 3. The upper connector 1 and the lower connector 2 are connected by six M3 screws. The lower part of the heat generating component 9 is in contact with the limiting plate 5, and the upper part is in contact with the flexible graphite cold chain 3. The two U-shaped limiting hoops 4 are placed in the two limiting clamping grooves 5-1 of the limiting plate 5, and the end parts of the U-shaped limiting hoops penetrate through four phi 4.5 through holes of the graphite cold chain 3. The pressing plate 6 penetrates through the end parts of the two U-shaped limiting clamps 4 and is in contact with the flexible graphite cold chain 3. Four pre-tightening springs 7 penetrate through the end part of the U-shaped limiting clamp 4 and are in contact with the pressing plate 6. The four pre-tightening springs 7 are tightly pressed by the fastening nuts 8, and then the flexible graphite cold chain 3 is pre-tightened and connected with the heating component 9.
The upper connecting piece 1 is processed into an L-shaped structure by adopting an aluminum-based silicon carbide material, the vertical part of the upper connecting piece is provided with six upper connecting piece phi 3.5 through holes 1-1, and the horizontal part is provided with six M3 threaded holes 1-2.
The lower connecting piece 2 is processed into an L-shaped structure by adopting an aluminum-based silicon carbide material, and the vertical part and the horizontal part of the lower connecting piece have six lower connecting piece phi 3.5 through holes 2-1.
The flexible graphite cold chain 3 is composed of 3-1 parts of oxygen-free copper foil with the thickness of 0.1mm, 3-2 parts of 60 layers of pyrolytic graphite sheets with the thickness of 0.1mm and high thermal conductivity, wherein one end of the flexible graphite cold chain 3 with high thermal conductivity is provided with four phi 4.5 through holes, and the other end of the flexible graphite cold chain is provided with six phi 3.5 through holes.
The U-shaped limiting clamp 4 is of a U-shaped structure processed by metal materials, and an M4 thread structure is processed on the vertical section of the U-shaped structure.
The thickness of the limiting plate 5 is 3mm, the limiting plate can be processed by metal or nonmetal materials, and two limiting clamping grooves 5-1 are designed on the limiting plate 5.
The thickness of the pressing plate 6 is 4mm, the pressing plate is processed by aluminum alloy materials, and phi 4.5 through holes are formed in the pressing plate 6.
The pre-tightening springs 7 are 20 disc springs, the inner diameter is 6.2mm, the outer diameter is 12.5mm, and the thickness of each disc is 0.35 mm.
The invention has the advantages that:
1, the flexible cold chain is made of pyrolytic graphite sheets with high thermal conductivity, so that the heat transfer component has the advantages of lighter weight and lower heat transfer resistance under the same size condition compared with the traditional cold chain made of metal sheets such as copper and aluminum;
2 the heat transfer component can be made into a specific flexible structure according to the space layout requirement, and the customization requirement of special application occasions is met;
3, one end of the connecting rod is fixed by a clamp type pre-tightening spring, so that the connecting rod is suitable for use scenes which cannot be directly assembled by screws and have the requirement for adjusting the assembling pre-tightening force;
4 one end of the heat transfer component adopts an L-shaped connecting piece as a connecting and pressing and connecting part of the cold chain, and the expansion of the thermal contact area can be carried out according to the actual requirement so as to reduce the thermal resistance of contact heat transfer.
And 5, the two layers of copper foils on the outermost side of the flexible graphite cold chain can enhance the strength of the cold chain under the extrusion or shearing force so as to adapt to the complex mechanical environment condition.
Drawings
FIG. 1 is a right upper perspective view of a flexible high performance heat conducting cable assembly with adjustable assembly pretension;
FIG. 2 is a left lower perspective view of a flexible high-performance heat conducting cable assembly with adjustable assembly pre-tightening force;
the specific names of the various identified parts in figures 1 and 2 are as follows:
1, connecting a connecting piece;
1-1, connecting pieces phi 3.5 through holes are arranged;
1-2, the upper connecting piece M3 is provided with a threaded hole;
2, a lower connecting piece;
2-1, a connecting piece phi is a 3.5 through hole;
3, a high-heat-conductivity flexible graphite cold chain;
3-10.1 mm copper foil;
3-2 pyrolytic graphite flakes;
4U-shaped limiting clamp;
5, limiting plates;
5-1 limiting clamping groove;
6, pressing a plate;
7 pre-tightening the spring;
8, fastening a nut;
9 heating element.
Detailed Description
The invention relates to a specific implementation mode of a flexible heat transmission assembly with adjustable assembly pretightening force, light weight and low heat transmission thermal resistance, which comprises the following steps:
1, cutting 0.1mm thick graphite flakes and 0.1mm thick oxygen-free copper foil sheets according to actual heat transfer quantity requirements and design sizes, and manufacturing a spatial structure of a graphite flexible cold chain according to actual spatial layout requirements;
2, opening 6 phi 3.5 through holes at one end of the graphite flexible cold chain according to the designed hole position, and opening four phi 4.5 through holes at the other end of the graphite cold chain according to the actual requirement;
3, connecting the upper connecting piece 1 and the lower connecting piece 2 with one end of the graphite cold chain, which is provided with 6 holes, and fixing the ends by using 6M 3 screws;
4, placing a limiting plate in a clamping groove of the U-shaped hoop 4, and contacting the limiting plate with a heating source;
5, the U-shaped hoop 4 penetrates through four phi 4.5 through holes of the flexible graphite cold chain 3, and the graphite cold chain moves downwards and is in good contact with a heating component;
6, installing a pressing plate 6 on the graphite cold chain 3, then connecting 4 butterfly-shaped pre-tightening springs 7 and fastening nuts 8 with the U-shaped clamp 4, and then tightening the fastening nuts to realize the assembly of the pre-tightening force adjustable part of the flexible heat conducting cable assembly;
and 7, the other end of the flexible graphite cold chain can be connected with other components, such as a heat dissipation plate, a refrigerator cold head and the like, through the reserved hole sites, and the implementation of the whole flexible heat conducting cable component with the adjustable assembling pretightening force is completed. The heat of the heat source is transmitted to the external heat collection end, such as a cold source and the like.
Claims (8)
1. The utility model provides a flexible high performance heat conduction cable subassembly with adjustable assembly pretightning force, includes connecting piece (1), lower connecting piece (2), flexible graphite cold chain (3), spacing clamp of U-shaped (4), limiting plate (5), clamp plate (6), pretension spring (7), fastening nut (8), the part (9) that generate heat, its characterized in that:
the flexible graphite cold chain (3) consists of an upper layer of copper foil (3-1) with the thickness of 0.1mm and a lower layer of copper foil with the thickness of 0.1mm and a middle pyrolytic graphite sheet (3-2), through holes are formed at two ends of the flexible graphite cold chain (3), wherein one end connected with the heating component (9) is provided with four phi 4.5 through holes, and the other end is provided with six phi 3.5 through holes; one end of the flexible graphite cold chain (3) provided with six phi 3.5 through holes is connected with the upper connecting piece (1) and the lower connecting piece (2); six M3 threaded holes (1-2) are formed in the connecting part of the upper connecting piece (1) and the flexible graphite cold chain (3), and six upper connecting piece phi 3.5 through holes (1-1) are formed in the other part of the upper connecting piece (1); the lower connecting piece (2) is provided with six lower connecting piece phi 3.5 through holes (2-1), and the horizontal part is contacted with the flexible graphite cold chain (3);
the upper connecting piece (1) is connected with the lower connecting piece (2) through six M3 screws; the lower part of the heating component (9) is contacted with the limiting plate (5), and the upper part is contacted with the flexible graphite cold chain (3); the two U-shaped limiting clamps (4) are placed in two limiting clamping grooves (5-1) of the limiting plate (5), and the end parts of the two U-shaped limiting clamps penetrate through four phi 4.5 through holes of the flexible graphite cold chain (3); the pressing plate (6) penetrates through the end parts of the two U-shaped limiting clamps (4) and is in contact with the flexible graphite cold chain (3); four pre-tightening springs (7) penetrate through the end part of the U-shaped limiting clamp (4) and are in contact with the pressing plate (6); the four pre-tightening springs (7) are tightly pressed by the fastening nuts (8), and then the flexible graphite cold chain (3) is connected with the heating component (9) in a pre-tightening manner.
2. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the upper connecting piece (1) is processed into an L-shaped structure by adopting an aluminum-based silicon carbide material, six upper connecting piece phi 3.5 through holes (1-1) are formed in the vertical part of the upper connecting piece, and six M3 threaded holes (1-2) are formed in the horizontal part of the upper connecting piece.
3. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the lower connecting piece (2) is processed into an L-shaped structure by adopting an aluminum-based silicon carbide material, and the vertical part and the horizontal part of the lower connecting piece have six lower connecting piece phi 3.5 through holes (2-1).
4. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the flexible graphite cold chain (3) is composed of 0.1 mm-thick oxygen-free copper foil (3-1), 60 layers of 0.1 mm-thick pyrolytic graphite sheets (3-2) and six phi 4.5 through holes at one end and 3.5 through holes at the other end of the flexible graphite cold chain (3).
5. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the U-shaped limiting clamp (4) is of a U-shaped structure processed by metal materials, and an M4 thread structure is processed at the end part of the U-shaped structure.
6. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the thickness of the limiting plate (5) is 3mm, the limiting plate can be processed by metal or nonmetal materials, and two limiting clamping grooves (5-1) are designed on the limiting plate (5).
7. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the thickness of the pressing plate (6) is 4mm, the pressing plate is made of aluminum alloy materials, and phi 4.5 through holes are formed in the pressing plate (6).
8. The assembly pretightening force adjustable flexible high-performance heat-conducting cable assembly according to claim 1, wherein: the pre-tightening springs (7) are disc springs which are 20 in number, the inner diameter is 6.2mm, the outer diameter is 12.5mm, and the thickness of each single plate is 0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120778540.8U CN215379574U (en) | 2021-04-16 | 2021-04-16 | A flexible high-performance thermal cable assembly with adjustable assembly preload |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120778540.8U CN215379574U (en) | 2021-04-16 | 2021-04-16 | A flexible high-performance thermal cable assembly with adjustable assembly preload |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215379574U true CN215379574U (en) | 2021-12-31 |
Family
ID=79627159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120778540.8U Active CN215379574U (en) | 2021-04-16 | 2021-04-16 | A flexible high-performance thermal cable assembly with adjustable assembly preload |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215379574U (en) |
-
2021
- 2021-04-16 CN CN202120778540.8U patent/CN215379574U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1042376C (en) | Heat sink mounting system for semiconductor devices | |
| US9241401B2 (en) | Solid state lighting device and method employing heat exchanger thermally coupled circuit board | |
| CN103547441B (en) | The complex of high-termal conductivity/low thermal coefficient of expansion | |
| US7743763B2 (en) | Structurally isolated thermal interface | |
| US20090166021A1 (en) | Heat sink and method of forming a heatsink using a wedge-lock system | |
| US8484845B2 (en) | Method of manufacturing a heat conducting structure having a coplanar heated portion | |
| JP3312169B2 (en) | How to install thermoelectric generation module | |
| CN215379574U (en) | A flexible high-performance thermal cable assembly with adjustable assembly preload | |
| CN2031313U (en) | Improved cooling device for electric heating | |
| US11094872B2 (en) | Apparatus for thermoelectric generation on HVAC pipes | |
| CN113194677A (en) | Flexible high-performance heat conducting cable assembly with adjustable assembling pre-tightening force | |
| JP2009021404A (en) | Cooling device for electronic component, and manufacturing method thereof | |
| US20080094800A1 (en) | Heat-dissipating device and method for producing the same | |
| US6988533B2 (en) | Method and apparatus for mounting a heat transfer apparatus upon an electronic component | |
| CN112509994A (en) | Semiconductor device fixing device, heat radiation assembly and mounting method of semiconductor device | |
| CN101287347A (en) | Heat pipe radiating device | |
| JP4622585B2 (en) | Cascade module for thermoelectric conversion | |
| US11665856B2 (en) | Electronic device having flexible, heat conductive layer and associated methods | |
| US6910271B2 (en) | Mechanical highly compliant thermal interface pad | |
| JP2003179274A (en) | Thermoelectric converter | |
| TWI565564B (en) | Clamping device | |
| CN101065004A (en) | Three-in-one radiator and manufacturing method thereof | |
| EP2216807A3 (en) | Heat-dissipation apparatus | |
| CN216119757U (en) | Ceramic substrate for potentiometer with hole | |
| WO2008037135A1 (en) | Heat sink with heat pipe and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |