CN1307397C - Flat closed heat pipe and its producing method - Google Patents

Abstract

The present invention provides a heat pipe with a flat-mouth type seal and a sealing method thereof. The heat pipe comprises a hollow cavity body with an opening mouth, and a sealing seat for sealing the opening mouth, wherein the sealing seat comprises a filling mouth communicated with the hollow cavity body. The present invention has the method that a sealing body is fixedly arranged on the filling mouth; then, an air-removing filling needle is penetrated through the sealing body and the filling mouth and is inserted into the hollow cavity body for removing air and filling; finally, the air-removing filling needle is pulled out of the sealing body; the pore space penetrated by the air-removing filling needle is sealed by elastic restoring force of the sealing body.

Description

The heat pipe that flat seals and its manufacture method

(1) technical field

The present invention relates to the heat pipe that a kind of flat seals, particularly relate to heat pipe and its mouth-sealing method that a kind of flat of keeping the outward appearance integrity degree seals.

(2) background technology

A kind of manufacture method of existing heat pipe, be that first construction one has the metal hollow tube that an open end and defines inner cavity chamber, again with an amount of working fluid after this hollow tube is injected in this open end, seal (open end that promptly seals this hollow tube) after at last this hollow tube being vacuumized.

The mouth-sealing method of above-mentioned existing heat pipe is to comprise the following step:

(A) as shown in Figure 1, 2, after earlier the openend 111 of thishollow tube 11 being processed by the facility clamping, make it form the basic kenel of aheat pipe 10;

(B) shown in Fig. 2,3, then utilize facility to cut off, and after cutting off, bestow spot welding (solder joint 12 as shown in Figure 4) and seal airtight effect to reach through the clamping processing flat section position,top 1121 of sealing end 112 (promptly sealing the mouth position) that operation produced.

But during actual the use, aforementioned evagination flat sealedend 112 and is subjected to external force to bump disconnected easily and causes thisheat pipe 10 to leak, and has not attractive in appearance and this flat situation of sealingend 112 theseheat pipe 10 length of meeting increase of external form, need bigger placing space relatively, with and adopt and to inject the practice that working fluid vacuumizes again earlier, can pumpback sop up the working fluid that has partly injected thishollow tube 11, cause accurately to control working fluid quantity and the quality of effectively guaranteeingheat pipe 10 in thehollow tube 11, add to vacuumize the complexity of equipment of deriving again after existingheat pipe 10 processing procedures are because of first filling, denounced by the dealer.

(3) summary of the invention

The objective of the invention is provide a kind of sealing part concordant with can effectively control the heat pipe of working fluid charging quantity.

Another purpose is the mouth-sealing method of the heat pipe that seals at the flat that a kind of flat appearance is provided.

According to the heat pipe that flat of the present invention seals, be applicable to a degasification filling needle to puncture into that comprise: one has the hollow cavity of an opening port, the seat that seals that an envelope is established this opening port with the filling operation fluid, and one be packed in this seal the seat in a seal; This hollow cavity comprises an opening port and defines an inner cavity chamber; This seals seat is that envelope is located at the opening port of this hollow cavity, and comprises that one forms and can be communicated with the filling mouth of this inner cavity chamber on this seals an outer surface of seat; The sealing body has elastic-restoring force and clogs in this seals seat and seal this filling mouth, the puncture of this degasification filling needle is carried out degasification, filling through sealing body, filling mouth and the inner cavity chamber that stretches into this hollow cavity, when this degasification filling needle is extracted the sealing body, seal the hole that this degasification filling needle punctured by the elastic-restoring force of sealing body; And a closely connected locating piece on the sealing body, it is concordant that an outer surface and this of this locating piece seals the outer surface of seat.

In addition, the mouth-sealing method of the heat pipe that a kind of flat seals, this heat pipe comprise that one has the hollow cavity of an opening port, reach the seat that seals that an envelope is established this opening port, and this seals seat and comprises that one is communicated with the filling mouth of this hollow cavity, and this method comprises the following step:

(A) on this filling mouth, set firmly a seal;

(B) with degasification filling needle puncture through sealing body, filling mouth and extend into and carry out degasification, packing job in this hollow cavity;

(C) this degasification filling needle is extracted the sealing body, and borrow the elastic-restoring force of sealing body to seal the hole that this degasification filling needle punctured; And

(D) a positioning block is closely connected on the sealing body, and make an outer surface of this locating piece concordant with the outer surface that this seals seat.

In addition, the mouth-sealing method of the heat pipe that a kind of flat seals, this heat pipe comprise that one has the hollow cavity of an opening port, reach the seat that seals that an envelope is established this opening port, and this seals seat and comprises that one is communicated with the filling mouth of this hollow cavity, and this method comprises the following step:

(A) on this filling mouth, set firmly a seal;

(B) a positioning block is closely connected on the sealing body, and an outer surface that makes this locating piece is concordant with the outer surface that this seals seat, this locating piece has a perforation that axially passes this locating piece;

(C) run through this locating piece and sealing body, filling mouth and extend into a degasification filling needle and carry out degasification, packing job in this hollow cavity; And

(D) this degasification filling needle is extracted this locating piece and sealing body, and borrow the elastic-restoring force of sealing body to seal the hole that this degasification filling needle punctured.

(4) description of drawings

The present invention is described in detail below in conjunction with drawings and Examples:

Fig. 1 is an action diagram of the mouth-sealing method of an existing heat pipe, and an open end of clamping facility desire clamping one hollow tube is described.

Fig. 2 is an action diagram of this mouth-sealing method, and the open end of this clamping facility clamping at this hollow tube is described.

Fig. 3 is an action diagram of this mouth-sealing method, illustrates to utilize facility to cut off through the clamping processing flat end (promptly sealing the mouth position) of sealing that operation produced.

Fig. 4 is an action diagram of this mouth-sealing method, illustrates that spot welding is bestowed in the flat end of sealing of this heat pipe after cutting off, and seals airtight effect to reach.

Fig. 5 is not complete cutaway view of first preferred embodiment of the heat pipe that seals of flat of the present invention.

Fig. 6 is that schematic diagram is used in one of this first preferred embodiment, illustrates that a degasification filling needle stretches into to carry out degasification and filling predetermined material etc. in the inner cavity chamber of this hollow cavity and process operations.

Fig. 7 is that schematic diagram is used in one of this first preferred embodiment, illustrates that a machining machine and tool is closely connected on the sealing body with a positioning block.

Fig. 8 is not complete cutaway view of this first preferred embodiment, illustrates that this locating piece is closely connected on the sealing body, and the more urgent driving fit of sealing body is sealed on the filling mouth of seat at this.

Fig. 9 is not complete cutaway view of second preferred embodiment of the heat pipe that seals of flat of the present invention, illustrates that this locating piece is that sealing facility are infused in the jelly that solidify to form on the sealing body.

Figure 10 is not complete cutaway view of this second preferred embodiment.

Figure 11 is not complete cutaway view of the 3rd preferred embodiment of the heat pipe that seals of flat of the present invention.

Figure 12 is that schematic diagram is used in one of the 3rd preferred embodiment, illustrates that this degasification filling needle stretches into to carry out degasification and filling predetermined material etc. in the inner cavity chamber of this hollow cavity and process operations.

Figure 13 is not complete cutaway view of the 3rd preferred embodiment, and the perforation that this locating piece is described is to utilize the spot welding mode to reach sealing state.

Figure 14 is the flow chart of first preferred embodiment of the mouth-sealing method of the heat pipe that seals of flat of the present invention.

Figure 15 is the flow chart of second preferred embodiment of the mouth-sealing method of the heat pipe that seals of flat of the present invention.

(5) specific embodiment

For convenience of description, at following embodiment, similar elements is to represent with same numeral.

Shown in Fig. 5,6,8, first preferred embodiment of the heat pipe 1 that flat of the present invention seals, be applicable to after the first degasification of a degasification filling needle 21 (containing) except that air tube, filling needle, an amount of charges that reinject, these charges are working fluid; This heat pipe 1 include a metal hollow cavity 3, that comprises anopening port 31 regularly drivingfit seal seat 4, at the metal of thisopening port 31 and clog aseal 5 in thisseals seat 4, reach a closely connected locatingpiece 6 on sealingbody 5.

This hollow cavity 3 comprises anopening port 31, and aninner cavity chamber 33 that is defined by aninner surface 321 of a surroundingwall 32.

Thisseals seat 4 is theopening ports 31 at this hollow cavity 3 of driving fit regularly, in this example thisseal seat 4 be solid welding on thisopening port 31, and thisseals seat 4 and also can adopt and screw togather group and tie in this surroundingwall 32, or utilizes facility to make to be packed on the above-mentioned surroundingwall 32; Thisseals seat 4 and comprises that one seals the fillingmouth 42, that forms onseat 4 theouter surface 41 and can be communicated with theinner cavity chamber 33 of this hollow cavity 3 around this fillingmouth 42 and this seals theconjugate foramen 43 of theouter surface 41 recessed formation ofseat 4 certainly from this; The aperture of thisconjugate foramen 43 is from top to bottom and dwindles.

Sealingbody 5 is to clog in thisseals seat 4 conjugateforamen 43 and seal this fillingmouth 42, and sealingbody 5 is a rubber-like colloidal silica or a rubber in this example.

This locatingpiece 6 is to utilize machining machine and tool 7 as shown in Figure 7 to make it closely connected on sealingbody 5, the 5 more urgent driving fits of sealing body are sealed on the fillingmouth 42 ofseat 4 at this, and make theouter surface 61 of this locatingpiece 6 seal theouter surface 41 concordant (flat line L as shown in Figure 8) ofseat 4 with this, to form the heat pipe that a flat seals.

Shown in Fig. 6,8, during use,degasification filling needle 21 puncture of adegasification filling machine 2 is entered sealingbody 5 and stretches into thisinner cavity chamber 33 to carry out degasification, an amount of working fluid of filling; After the user extracts sealingbody 5 with thisdegasification filling needle 21, the elastic-restoring force that sealingbody 5 can have because of itself, and consolidation seals thefilling mouth 42 that thisseals seat 4; It is different from theheat pipe 10 that existing mouth-sealing method as shown in Figure 4 makes and needs clamping processing, with utilize facility and cut off this flat end 112 (promptly sealing the mouth position) of sealing, relatively the present invention can keep the flat appearance degree and unexpected bumped by external force disconnected, more can reduce the length of this heat pipe 1, improve steric practicality, and charging quantity and the process apparatus of accurately controlling working fluid are simpler, effectively guarantee the craftmanship of this heat pipe 1.

Shown in Fig. 9,10, be second preferred embodiment of the heat pipe that seals of flat of the present invention, its place that is different from first preferred embodiment is: the jelly that this locating piece 6 ' solidify to form after being infused on the sealingbody 5 for as shown in Figure 9 sealing facility 8.

Shown in Figure 11,12,13, be the 3rd preferred embodiment of the heat pipe 1 that seals of flat of the present invention, its place that is different from first preferred embodiment is: this locatingpiece 6 is to be the T font, and has aperforation 62 that enters for thesedegasification filling needle 21 punctures; The aperture of thisconjugate foramen 43 is from top to bottom and dwindles in this example, and have one and be positioned at below and be connected with this fillingmouth 42 and for ccontaining its circularbase junction surface 431 of sealingbody 5, and one expands the circulartop junction surface 432 that is located at these 431 tops, circular base junction surface; In addition, when the user extracts theperforation 62 ofsealing body 5 and this locating piece with thisdegasification filling needle 21, utilization spot welding mode of more can arranging in pairs or groups (solder joints 90 of a mash welder tool 9 processing as shown in figure 13) or sealing mode seal theperforation 62 of this locatingpiece 6, to obtain better airtight effect.

As shown in figure 14, the method of manufacturing heat pipe shown in Fig. 8,10, this heat pipe 1 comprises that one has the hollow cavity 3 of anopening port 31, and one regularly driving fit thisopening port 31 seal theseat 4, thisseals seat 4 and comprises that one is communicated with thefilling mouth 42 of theinner cavity chamber 33 of this hollow cavity 3, and this method comprises the following step:

Step 100: on this fillingmouth 42, set firmly aseal 5;

Step 110: with adegasification filling needle 21 puncture throughsealing bodies 5, fillingmouth 42 and extend in this hollow cavity 3 and carry out degasification, packing job;

Step 120: thisdegasification filling needle 21 is extracted sealingbody 5, and borrow the elastic-restoring force of sealingbody 5 to seal the hole that thisdegasification filling needle 21 punctured; And

Step 130: apositioning block 6 is closely connected on sealingbody 5, and make theouter surface 61 of this locatingpiece 6 concordant with theouter surface 41 that thisseals seat 4; Thisseals seat 4 and also comprises one around this fillingmouth 42 and this seals theconjugate foramen 43 ofseat 4outer surface 41 recessed formation certainly, is installed on the bottom surface of thisconjugate foramen 43 closely connected on sealingbody 5 with this locatingpiece 6 forsealing body 5; What deserves to be mentioned is, for making locating piece 6 ' as shown in Figure 6, be on sealingbody 5, to inject a jelly, make this jelly solidify the back and form a closely connected locating piece 6 ' on sealingbody 5, and make theouter surface 61 of this locating piece 6 ' concordant with theouter surface 41 that thisseals seat 4.

As shown in figure 15, make the method for heat pipe as shown in figure 13, this method comprises the following step:

Step 140: on this fillingmouth 42, set firmly aseal 5;

Step 150: comprise that with one locatingpiece 6 of aperforation 62 is closely connected on sealingbody 5, and make theouter surface 61 of this locatingpiece 6 concordant with theouter surface 41 that thisseals seat 4; Thisseals seat 4 and also comprises one around this fillingmouth 42 and this seals theconjugate foramen 43 ofseat 4outer surface 41 recessed formation certainly, is installed on the bottom surface of thisconjugate foramen 43 closely connected on sealingbody 5 with this locatingpiece 6 for sealingbody 5;

Step 160: with adegasification filling needle 21 puncture through these locatingpieces 6 with sealingbody 5, fillingmouth 42 and extend in this hollow cavity 3 and carry out degasification, packing job;

Step 170: thisdegasification filling needle 21 is extracted this locatingpiece 6 and sealingbody 5, and borrow the elastic-restoring force of sealingbody 5 to seal the hole that thisdegasification filling needle 21 punctured; And step 180: after thisdegasification filling needle 21 is extracted this locatingpiece 6 and sealingbody 5, be to utilize spot welding mode or sealing mode to seal thisperforation 62.

Claims (17)

1. the mouth-sealing method of the heat pipe that seals of a flat, this heat pipe comprises that one has the hollow cavity of an opening port, and an envelope establishes the seat that seals of this opening port, this seals seat and comprises that one is communicated with the filling mouth of this hollow cavity, it is characterized in that, comprises the following step:

(A) on this filling mouth, set firmly a seal;

(B) puncture into the sealing body with a degasification filling needle and extend into and carry out degasification, packing job in this hollow cavity;

(C) this degasification filling needle is extracted the sealing body, and seal the hole that this degasification filling needle punctured by the elastic-restoring force of sealing body; And

(D) a positioning block is closely connected on the sealing body, and make an outer surface of this locating piece concordant with the outer surface that this seals seat.

2. the mouth-sealing method of the heat pipe that flat as claimed in claim 1 seals is characterized in that:

This seals seat and also comprises one around this filling mouth and this seals the conjugate foramen of the recessed formation of outer surface of seat certainly.

3. the mouth-sealing method of the heat pipe that flat as claimed in claim 2 seals is characterized in that:

The aperture of this conjugate foramen is from top to bottom and dwindles.

4. the mouth-sealing method of the heat pipe that flat as claimed in claim 1 seals is characterized in that

Also comprise the following step:

(E) on the sealing body, inject a jelly, make this jelly solidify the back and form a closely connected locating piece on the sealing body, and make an outer surface of this locating piece concordant with the outer surface that this seals seat.

5. the mouth-sealing method of the heat pipe that flat as claimed in claim 4 seals is characterized in that:

This seals seat and also has one around this filling mouth and this seals the conjugate foramen of the recessed formation of outer surface of seat certainly.

6. the mouth-sealing method of the heat pipe that flat as claimed in claim 5 seals is characterized in that:

The aperture of this conjugate foramen is from top to bottom and dwindles.

7. the mouth-sealing method of the heat pipe that seals of a flat, this heat pipe comprises that one has the hollow cavity of an opening port, and an envelope establishes the seat that seals of this opening port, this seals seat and comprises that one is communicated with the filling mouth of this hollow cavity, it is characterized in that, comprises the following step:

(A) on this filling mouth, set firmly a seal;

(B) a positioning block is closely connected on the sealing body, and an outer surface that makes this locating piece is concordant with the outer surface that this seals seat, this locating piece has a perforation that axially passes this locating piece;

(C) puncture into this locating piece and sealing body and extend into a degasification filling needle and carry out degasification, packing job in this hollow cavity; And

(D) this degasification filling needle is extracted this locating piece and sealing body, and borrow the elastic-restoring force of sealing body to seal the hole that this degasification filling needle punctured.

8. the mouth-sealing method of the heat pipe that flat as claimed in claim 7 seals is characterized in that:

This seals seat and also comprises one around this filling mouth and this seals the conjugate foramen of the recessed formation of outer surface of seat certainly.

9. the mouth-sealing method of the heat pipe that flat as claimed in claim 8 seals is characterized in that:

The aperture of this conjugate foramen is from top to bottom and dwindles, and has one and be positioned at the below and be connected with this filling mouth and for the ccontaining junction surface, the end of sealing body, and one expands the junction surface, top that is located at this top, junction surface, end.

10. the mouth-sealing method of the heat pipe that flat as claimed in claim 8 seals is characterized in that:

After this degasification filling needle is extracted this locating piece and sealing body, be to utilize the spot welding mode to seal this perforation.

11. the mouth-sealing method of the heat pipe that flat as claimed in claim 8 seals is characterized in that:

After this degasification filling needle is extracted this locating piece and sealing body, be to utilize glue envelope mode to seal this perforation.

12. the heat pipe that flat seals is applicable to a degasification filling needle to penetrate to be filled into charges, comprises a hollow cavity, an envelope is located at the seat that seals on this hollow cavity, and one be installed in this and seal a seal in the seat, it is characterized in that:

This hollow cavity comprises an opening port and defines an inner cavity chamber;

This seals seat is that envelope is established the opening port of this hollow cavity, and comprises that one forms and can be communicated with the filling mouth of this inner cavity chamber on this seals an outer surface of seat;

The sealing body has elastic-restoring force and clogs in this seals seat and seal this filling mouth, after the inner cavity chamber that this degasification filling needle punctured sealing body, filling mouth and stretched into this hollow cavity carries out degasification, filling, the hole that punctured by salable this degasification filling needle of the elastic-restoring force of sealing body; And

One closely connected locating piece on the sealing body, an outer surface and this of this locating piece seal the seat outer surface concordant.

13. the heat pipe that flat as claimed in claim 12 seals is characterized in that:

This seals seat and also comprises one around this filling mouth and this seals the conjugate foramen of the recessed formation of outer surface of seat certainly.

14. the heat pipe that flat as claimed in claim 13 seals is characterized in that:

The aperture of this conjugate foramen is from top to bottom and dwindles, and have one and be positioned at the below and be connected with this filling mouth and for the ccontaining junction surface, the end of sealing body, and one expands the junction surface, top that is located at this top, junction surface, end.

15. the heat pipe that flat as claimed in claim 12 seals is characterized in that:

This locating piece has a perforation that axially passes this locating piece.

16. the heat pipe that flat as claimed in claim 15 seals is characterized in that:

After this degasification filling needle is extracted this locating piece and sealing body, be to utilize the spot welding mode to seal this perforation.

17. the heat pipe that flat as claimed in claim 15 seals is characterized in that:

After this degasification filling needle is extracted this locating piece and sealing body, be to utilize glue envelope mode to seal this perforation.

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