CN2677852Y

CN2677852Y - Heat-pipe sealing structure

Info

Publication number: CN2677852Y
Application number: CNU2003201317389U
Authority: CN
Inventors: 徐惠群
Original assignee: 徐惠群
Current assignee: Jiefei Co., Ltd.
Priority date: 2003-12-30
Filing date: 2003-12-30
Publication date: 2005-02-09
Anticipated expiration: 2013-12-30

Abstract

The utility model discloses a heat-pipe sealing structure which is shaped on the mouth of the heat pipe, wherein the mouth is a flattened pipe wall whose surface of inner lateral wall is contacted closely. The flattened pipe wall is provided with at least two longitudinal bending portions which are formed on the flattened pipe wall. The flattened pipe wall is densely bended and composes the sealing of the heat pipe. Therefore, the heat pipe can reach the purposes of reducing the mouth of the heat pipe and sealing the mouth, without the manufacturing procedure of reducing pipe.

Description

Heat pipe enclosuring structure

Technical field

The utility model relates to a kind of heat pipe enclosuring structure, relates in particular to a kind of opposite heat tube that do not need and carries out the heat pipe enclosuring structure that draw processing just can be sealed the nose end of this heat pipe.

Background technology

Whether the excellence of the performance of most of electronic products performance at present, often depend on the ability of its calculation process speed, and the heat dissipation problem of electronic building brick is the primary factor that influences its calculation process speed.Central processing unit (CPU) with computer is an example, it is mainly used in the transmission of the various command signals of processing and the computing of program numerical value etc., because its frequency is exceedingly fast, therefore is easy to generate very high heat, thereby the performance that can influence CPU self is slowed down its arithmetic speed, even quits work.Therefore, general electronic building brick need install radiator additional and keeps suitable working temperature to quit work because of overheated avoiding.

In addition, in order to strengthen the radiating effect of radiator, heat sink applications now heat conduction efficiency Gao Bingneng inhale repeatedly, the heat pipe (heat pipe) of heat release.Heat pipe has a body, and body one end is a blind end, and the other end is a nose end.In this body, install capillary structure (wickstructure), and after being filled with working fluid (working fluid), again the nose end of this body is sealed and finish the making of described heat pipe.When heat pipe contacts at the electronic building brick with heating, its heating end makes the liquid phase working fluid flash to gas phase because of absorbing heat, after the gas phase working fluid conducts to the colling end of this heat pipe through inside heat pipe, regelation becomes the liquid phase working fluid, and get back to heating end for capillary structure is adsorbed, make heat pipe become one and have the heat-transferring assembly of the working fluid of circulation repeatedly, be used for increasing the radiating effect of radiator, keep electronic building brick and under all permanent temperature environment, move.

Be the quality of guaranteeing heat pipe and the normal performance of function thereof, the sealing part of the nose end of general heat pipe need weld driving fit and handle.Fig. 1 is the enclosuring structure schematic diagram of known heat pipe 1a.As shown in Figure 1, after the nose end 10a of heat pipe 1a dwindled into the 100a of portion that carefully contracts earlier with draw technology, again with tightly carefully the contract end of the 100a of portion of tube sealing clamp die, form one and flatten district 101a, weld formation one plumb joint 102a again on flattening district 101a, the nose end 10a with heat pipe 1a is sealed thus.

The main purpose that the enclosuring structure of above-mentioned known heat pipe 1a, its nose end 10a dwindle into the 100a of portion that carefully contracts is to make the volume and the area in the enclosuring structure zone of nose end 10a to reduce in advance, so that carry out solder up.Yet, though dwindling the back, the nose end 10a of heat pipe 1a helps welding, the nose end 10a after dwindling will make its inner capillary structure shape instability, makes the filling of working fluid need manual operation, and is so not only time-consuming and manufacturing cost is high.If insert capillary structure and filling operation fluid again after changing the draw into, then can improve the difficulty of inserting with filling because of the formation of the 100a of portion that carefully contracts, increased the cost that the whole draw is made.

Above-mentioned known heat pipe enclosuring structure in the actual manufacturing of carrying out heat pipe, obviously has in addition improved inconvenience and defective and exists.

The design people is in view of the improved defective of carrying out that exists in the above-mentioned prior art, through concentrating on studies and cooperating the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned defective finally.

Content of the present utility model

Main purpose of the present utility model is to provide a kind of heat pipe enclosuring structure, and it can solve the defective that exists in the prior art, and can save manufacturing cost, improves the quality of heat pipe.Simultaneously, the operating time in the time of more can shortening the heat pipe welding processing, enhance productivity.

In order to achieve the above object, the utility model provides a kind of heat pipe enclosuring structure, and it is molded on the nose end of a heat pipe.Wherein, this nose end is the closely flattening tube wall of contact of interior sidewall surface, and this flattening tube wall has formation at least two buckling portions thereon, thereby makes this flattening tube wall concentrate the crooked enclosuring structure that constitutes this heat pipe.

Heat pipe enclosuring structure of the present utility model has following advantage:

1. this flattening tube wall can reach the purpose of the nose end that dwindles heat pipe equally, but does not need by draw manufacturing process of the prior art, thereby can solve defective of the prior art, and can save manufacturing cost, improves the quality of heat pipe.

2. after should flattening the concentrated bending of tube wall, can shorten the time that welding waits the processing operation, improved production efficiency, especially for bigbore heat pipe, can save complicated draw process, the speed that can accelerate to weld more, thus, not only more smooth on manufacture process, also can avoid facility and mould to damage because of the high heat that welding is produced.

Brief description of drawings

Fig. 1 is the side cross-sectional schematic of known draw formula heat pipe;

Fig. 2 is the stereogram of the heat pipe enclosuring structure of the utility model embodiment;

Fig. 3 is that the heat pipe enclosuring structure of the utility model embodiment is being pressed the vertical view cutaway drawing when connecting airtight;

Fig. 4 is that the heat pipe enclosuring structure of the utility model embodiment is being pressed the side view cutaway drawing when connecting airtight;

Fig. 5 finishes the stereogram of pressing after connecting airtight for the heat pipe enclosuring structure of the utility model embodiment;

Fig. 6 is that the heat pipe enclosuring structure of the utility model embodiment pushes the vertical view cutaway drawing () when mediating;

Fig. 7 is that the heat pipe enclosuring structure of the utility model embodiment pushes the vertical view cutaway drawing (two) when mediating;

Fig. 8 finishes the vertical view cutaway drawing that pushes after mediating for the heat pipe enclosuring structure of the utility model embodiment;

Fig. 9 is the schematic perspective view after the heat pipe enclosuring structure of the utility model embodiment imposes welding;

Figure 10 is that the heat pipe enclosuring structure of the utility model embodiment further carries out the vertical view cutaway drawing after lateral compression is mediated.

In the accompanying drawing, the list of parts of each label representative is as follows:

The 1a-heat pipe

The 10a-nose end 100a-portion of carefully contracting

101a-flattens district 102a-plumb joint

The 1-heat pipe

10-nose end 100-flattens tube wall

101-connects airtight seam 102-bend

First flat 104-of 103-, the second flat portion

The 3rd flat 106-junction surface of 105-

The recessed tube wall of 11-tube wall 110-

2-is pressing mould

The 20-first mould 21-second mould

The 3-extrusion die

The 30-first mould 31-second mould

Embodiment

In order to make those skilled in the art further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the utility model.

Fig. 2 is a three-dimensional appearance schematic diagram of the present utility model.The utility model provides a kind of heat pipe enclosuring structure, as shown in Figure 2, this heat pipe enclosuring structure is molded on the nose end 10 of a heat pipe (heat pipe) 1, be used for making heat pipe 1 inside to be sealing state, make the working fluid (working fluid) of heat pipe 1 can carry out phase change, guarantee heat pipe 1 operate as normal.

This enclosuring structure is being pressed the nose end 10 of heat pipe 1 is connecting airtight earlier when moulding, further its extruding is mediated and dwindles concentratedly, and concrete manufacture process is as follows:

As shown in Figures 3 and 4, at first the nose end 10 of heat pipe 1 is placed on one and is pressing in the mould 2, pressing mould 2 to include first mould 20 and second mould 21.That first and second mould 20,21 is is one protruding, a recessed shape and cooperatively interacting.Push the planform that nose end 10 is formed as shown in Figure 5 with the nose end 10 of pressing mould 2 opposite heat tubes 1.

See also Fig. 5, when heat pipe 1 finish above-mentioned pressing the step of connecting airtight after, the tube wall 11 of nose end 10 bottoms can form recessed tube wall 110 because of the extruding of being pressed mould 2, the tube wall 11 of nose end 10 forms the closely flattening tube wall 100 of contact of interior sidewall surface because of the extruding of first and second mould 20,21, flatten half arc shape that tube wall 100 is a bending, seam 101 is connected airtight in side wall surface mutually tight contact position formation within it one.

As Figure 6 and Figure 7, again heat pipe shown in Figure 51 is placed in the extrusion die 3, extrusion die 3 includes first mould 30 and second mould 31.The utility model for embodiment in, first mould 30 is the V font angle shape that inwardly concaves, the flattening tube wall 100 of heat pipe 1 is a recessed side towards first mould 30, relative opposite side then is the pointed shape of outside protrusion towards the shape of form fit first mould 30 of second mould, 31, the second moulds 31.After the flattening tube wall 100 of extrusion die 3 opposite heat tubes 1 pushes,, flattening tube wall 100 obtains described enclosuring structure as Fig. 2 and planform shown in Figure 8 thereby being formed.

As Fig. 2 and shown in Figure 8, the flattening tube wall 100 of finishing the heat pipe 1 after sealing has formation at least two buckling portions 102 thereon, and the bending by two bends 102 makes flattens tube wall 100 and divide into first flat 103, second flat 104 and be connected between first flat 103 and second flat 104 the 3rd flat 105.First and second and three flat 103,104,105 concentrate because of crooked, thereby form the enclosuring structure of described heat pipe 1.

In addition, because second mould 31 of extrusion die 3 is the angular shape of outside protrusion, therefore the above-mentioned the 3rd flat 105 will and be recessed between first and second flat 103,104.If second mould 31 of extrusion die 3 is one when plane, then the 3rd flat 105 can with first and second flat 103,104 around and form the triangular form (not shown).

As shown in Figure 9, after finishing the heat pipe 1 shown in Fig. 2 (or Fig. 8), can further carry out hard solder (brazing), soft soldering (soldering) or directly welding processing such as (welding) on the seam 101 in the connecting airtight of flattening tube wall 100 of heat pipe 1, thereby flattening formation junction surface 106 on the tube wall 100, improving the adaptation of the enclosuring structure of heat pipe 1.

As shown in figure 10, the utility model can further carry out the extruding kneading of side direction to the heat pipe 1 shown in Fig. 2 (or Fig. 8).First and second flat 103, the extruding of 104 ecto-entads with heat pipe 1, first and second and three flat 103,104,105 are mediated to be concentrated, make the 3rd flat 105 and inserted and put and crooked and fit mutually by first and second flat 103,104, be used for dwindling the enclosuring structure of heat pipe 1.

By above-mentioned contexture, promptly can obtain heat pipe enclosuring structure of the present utility model.

In sum, the utility model is real to be rare novel practical novel product, it really can reach the application target of expection, and solve known disappearance, because of having novelty and progressive, meeting novel patent application important document fully again, files an application according to Patent Law in the whence, would like to ask detailed survey and grant accurate this case patent, to ensure designer's right.

The above only is a preferable possible embodiments of the present utility model, and non-so promptly inflexible limit claim of the present utility model so the equivalent structure that uses the utility model specification and graphic content to do such as changes, all in like manner all is included in scope of the present utility model.

Claims

1. heat pipe enclosuring structure, it is molded on the nose end of a heat pipe, it is characterized in that, described nose end is the closely flattening tube wall of contact of interior sidewall surface, described flattening tube wall has formation at least two buckling portions thereon, makes described flattening tube wall concentrate the crooked enclosuring structure that constitutes described heat pipe.

2. heat pipe enclosuring structure as claimed in claim 1 is characterized in that having the junction surface on the described flattening tube wall.

3. heat pipe enclosuring structure as claimed in claim 2 is characterized in that described junction surface is for connecing by hard solder, soft soldering or the direct formed junction surface of welding.

4. heat pipe enclosuring structure as claimed in claim 1, it is characterized in that described flattening tube wall within it side wall surface mutually closely the contact position be formed with and connect airtight seam.

5. heat pipe enclosuring structure as claimed in claim 4, it is characterized in that described connect airtight to sew on have the junction surface.

6. heat pipe enclosuring structure as claimed in claim 5 is characterized in that described junction surface is for connecing by hard solder, soft soldering or the direct formed junction surface of welding.

7. heat pipe enclosuring structure as claimed in claim 1 is characterized in that described flattening tube wall is the first flat portion, second flat by described two sweeps and is connected the 3rd flat portion between described first, second flat portion.

8. heat pipe enclosuring structure as claimed in claim 7 is characterized in that described first, second flat and the described the 3rd flat centers on and the formation triangle.

9. heat pipe enclosuring structure as claimed in claim 7, the described the 3rd flat portion that it is characterized in that is also recessed between described first and second flat portion.

10. heat pipe enclosuring structure as claimed in claim 7, it is characterized in that the described the 3rd flat by described first and second flat insert and put and crooked and fit mutually.