TWI297765B - - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing non-condensable gas inside a heat pipe, and more particularly to a method for removing non-condensable gas which can greatly improve the purity of a heat conductive medium inside a heat pipe. By. μ [Prior Art] • Press, because the heat pipe has fast heat transfer, high thermal conductivity, small size, light weight, no moving parts, simple structure and multi-purpose, it can transfer a lot of heat and consume no power. Therefore, it is widely used in the heat dissipation of various electronic products (such as notebook computers). Generally, the inner wall of the heat conducting member is provided with a capillary structure, and the capillary structure can be a woven mesh having a capillary action, and the capillary action of the capillary structure can facilitate the transmission of the heat conductive medium in the heat transfer tube. The determinants of the performance of the thermal conductivity officer, in addition to the fixed characteristics of the pipe characteristics, the capillary group 10, the heat transfer medium, etc., there are also factors that remove the non-condensable gas inside the heat pipe. Because the degassing process directly affects the stock and purity of the heat transfer medium. In the introduction of the money, the first part of the heat pipe is filled with the derivative medium, and then the heat pipe inside the Qiu Zhi, 兮, 士 ^^ -丄' 1 • 兮 〜 ~ - gas removal; after Then, seal the =::, : to form a complete heat pipe. And - the first = the first ^ tube η internal filling empty pumping method. It is tied to the heat of the heat conduction; after I, as shown in Fig. 2, the connection port 12 of the guide χ 297765 hot Π 接 is connected to the deaerator η of a vacuum system 13, and is extracted by the deaeration device 14 The non-condensable gas 15 in the tube; when the unsuspecting gas 15 inside the heat pipe u is extracted to the allowable residual amount, the connection port 12 of the heat transfer port 11 is sealed and covered at the outer end of the seal Welding layer.

The second, as shown in Figure 3, is the heated exhaust method. After filling a predetermined amount of the heat-conducting medium inside the heat-conducting tube ^, the connecting port 12 of the heat-conducting tube is turned to a deaerator 16 and then heated by the heating device to bring the heat-conducting medium to its saturation temperature. And continuously maintaining the saturation temperature until the heat-conducting medium' becomes a Fo Teng and evaporating state, and the non-condensable gas 15 inside the heat-conducting fll is driven away by steam, and is discharged by the degassing device 16, and then the heat-conducting pipe is connected to the port 12 Sealed and covered with a tan layer at the outer end of the seal. The second type is shown in Figures 4 and 5 as a secondary degassing method. The vacuum pumping method is used to remove the non-condensable gas 15' from the deaerator 14 and apply the second heating and exhausting method.

The remaining non-condensable gas 15 is removed to increase the purity of the heat transfer tube portion. "Shou", 丨 %%% of the above three methods of removing the non-condensable gas in the heat conduction (four) part, although the non-condensable gas inside the heat pipe U can be removed, when the non-condensing body is reduced, the same domain heat fu (four) The heat-conducting medium is also a degassing device - (4) to lose and cause 'the conduction capacity inside the heat-conducting pipe 不 does not cause poor thermal conductivity, seriously reducing the clothing manufacturing yield and heat-conducting efficiency of the heat-conducting pipe. When the non-condensable gas inside the heat pipe is removed, the heat medium f is consumed, which is generally taken to reserve the heat medium consumption.

Claims (1)

1297765 Thinning) is being replaced _ i X. Patent application scope: 1 method for removing non-condensable gas inside the heat pipe, including the following steps: · Total ^1) Preparing a heat pipe containing capillary structure inside, and Thermal charge. Further, a neck is prefabricated at a selected position below the connection port, so that the broken joint of the neck is smaller than the sectional area of the heat pipe; the heat pipe forms a heat pipe section, a flange portion, and a connection port section; (2) the heat conduction The inside of the tube is filled with a predetermined amount of heat-conducting medium; (3) connecting the connection port of the heat-conducting tube to the deaeration device, and extracting the non-condensable gas inside the heat-conducting tube by using the device, so that the heat-conducting tube=Yang Cheng negative pressure 'Let the heat transfer medium inside the heat pipe become a gaseous state due to the negative pressure and push the non-condensable gas to the connection port;限制Restriction ‘Exclude the non-condensable gas and recover the heat-conducting medium; When the non-condensable gas inside the heat-conducting pipe section is excluded to the amount of the disturbance, the neck is sealed. 2'Mtt Patent _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Completed before the neck process. L,, "Beiyue 3, according to the method of applying for the patent range i or the internal non-condensable gas of the tube, = to the heat transfer tunnel pigeons > ^, ^ ^ by the setting of the limit, so that & 5 force and temperature have been maintained above the connection α俨, 隹 blocking the non-condensable gas back to the heat pipe section; at the same time, ^ gas state guide 17 1297765, 丨叫日修# is replacing the page heat medium in After passing through the neck, the gaseous heat transfer medium is condensed into a liquid heat conductive medium due to the lower temperature and lower negative pressure, and is adsorbed on the capillary structure, which is caused by its own weight and capillary phenomenon. And returning to the heat pipe section. 4. A method of removing non-condensable gas inside a heat pipe, comprising the steps of: (a) preparing a heat pipe having a capillary structure therein, and prefabricating a neck at a selected position below the joint provided by the heat pipe; a portion having a sectional area smaller than a sectional area of the heat pipe; the heat pipe forming a heat pipe portion, a neck portion, and a joint port portion; (b) filling a heat conductive tube with a predetermined amount of the heat conductive medium; Connecting the connection port of the heat pipe to a deaerator, and closing the check valve of the deaeration device to form a closed space below the stop valve, and heating the bottom end of the heat pipe segment with a heating device needle The heat-conducting bifurcation heat treatment generates a vapor pressure to form a vapor pressure, and pushes the non-condensable gas in the heat-conducting tube to move toward the connection port segment, and accumulates in the connection port segment; and according to the limitation of the neck portion, the non-excluding Condensing gas and recovering the heat-conducting medium; U) sealing the neck portion when the non-condensable gas inside the heat-conducting pipe section is discharged to a desired residual amount. 5 According to the method of claim 4, the method for removing the non-condensable gas inside the heat-conducting tube, the bovine in the pot, and the v-b (b), the filling heat-transfer medium is also 18 1297765 '·,~. N..~.^^" . ~-~一一一'· Ί月Y日修 (力正换页 can be completed before the process of pre-fabricating the neck to complete the heat transfer in the fourth or fifth item Section /1, the material 'the neck of the neck is - gradually reduce the state of the gas of the neck is high temperature, high and high p and then block the non-condensable gas back to the heat conduction pipe teaching material to the company The interface section is a gradually expanding cavity, so that when the gaseous shell passes through the neck, it will diffuse due to volume, forming a low pressure, and a low dish, causing the gaseous heat conduction medium to condense into a liquid state. ' While adsorbing on the capillary woven fabric, the liquid heat-conducting medium is returned to the heat-conducting pipe section by its weight and capillary phenomenon. 7. A method for removing non-condensable gas inside the heat-conducting pipe, comprising the following steps: - (A) prepare a heat pipe containing a capillary structure inside, and connect it to the heat conduction A neck is prefabricated at a selected position below the interface, so that the sectional area of the neck is smaller than the sectional area of the heat conducting member; the heat conducting tube forms a heat conducting pipe section, a neck portion, and a connecting port section; (B) filling the inside of the heat pipe (C) connecting the connection port of the heat pipe to a deaerator, and extracting the non-condensable gas inside the heat pipe by the degassing device to form a negative pressure inside the heat pipe section to make the heat conduction The heat conductive medium inside the tube evaporates into a gaseous state due to the negative pressure, and pushes the non-condensable gas to the connection port; and the non-condensable gas is removed and the heat conductive medium is recovered according to the limitation of the 颂 颂; (D) when the heat conduction The pipe segment reaches the set negative pressure value to the ideal state, that is, | Μ i)f[ riil ,, ..1 II t^irnimmmmmmmmfmm^ ?^//month>|日修#) is replacing page 1297765 to close the connection σ, And closing the middle of the deaeration device with the deaerator, so as to form a sealing 2 below the connecting port to heat the bottom end of the heat conducting section to heat the device, so that the hot (a) is reduced (10) wire pressure and push the guide 2 The non-condensable gas moves toward the connecting port segment and accumulates; the connecting port segment; and according to the limitation of the neck, the non-condensable gas is removed to receive the heat conducting medium; (E) the non-condensing tube inside is not When the coagulated gas is removed to the residual amount of interest, the neck is sealed. ^ According to the application of the patent (4), item 7, the method of removing non-condensable, and oral gases inside the lead is removed, and in the case of Niu Jun ^ In the step (1) of f, ～士U, the filling heat-conducting medium may also be completed before the process of pre-fabricating the neck. : The heat-conducting g is removed as described in item 7 or item 8 of the patent scope. a method of a gaseous gas, wherein in the step (6), according to the limitation of the =, the pressure and temperature of the heat-conducting pipe section are maintained at a high level, and the non-condensable gas is prevented from flowing back to the * The heat pipe section; the same day guardian' when the gaseous heat transfer medium passes through the neck, that is, due to the connection port section, the low temperature and the contact, so that I (10) heats the junction heat conduction = shell, adsorbed on the capillary structure, The liquid heat transfer medium is returned to the heat transfer pipe section by its own weight and capillary phenomenon. Heat conduction 10, according to the 7th or 8th item of the patent application scope, remove 20 I297765 "- _ decomposition 'month 曰 曰 repair" is replacing the material of the non-35 pure gas in the page ^, the 颂 part is gradually reduced In the broken area, ^^D), according to the high temperature, high pressure and high flow rate, the state of the gas of the 卩 回 回 兮逡 兮逡 兮逡 一 一 、 、 、 、 、 、 、 , , , , , , , , , , , , , The gas (10) ”, line, _, _ section to the connecting section is a gradually expanding cavity, so that when the gas-permeable heat transfer medium passes through the neck, it will diffuse due to volume, forming a state of low pressure, low flow rate and low temperature. The heat conductive medium which condenses the gaseous heat conductive medium into a liquid state is adsorbed on the capillary structure, and the liquid heat conductive medium is returned to the heat conducting pipe section by its own weight and capillary phenomenon. twenty one