JP2007170759A - Refrigerant liquid injection device and method of manufacturing cooling module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerant liquid injection device and a method of manufacturing a cooling module capable of securing requirement of refrigerant liquid by injecting the refrigerant liquid to the cooling module and surely performing air bleeding, and improving cooling performance as the cooling module. <P>SOLUTION: In this refrigerant liquid injecting device for injecting the refrigerant liquid to the cooling module M constituted by communicating a liquid distribution pump 40 comprising an auxiliary reserve tank chamber 54 and a pump chamber 53 communicated through a communication hole 58, a heat receiving plate 30, a reserve tank 70 and a heat radiating portion 60 by hoses P, a tip nozzle portion N of a syringe 11 is inserted into a liquid inlet 59 formed on the auxiliary reserve tank chamber in a state of faced upward, the refrigerant liquid is forcibly supplied from a refrigerant liquid supply body 13 to the liquid distribution pump, a first supporting mechanism portion 1 performs air bleeding in accompany with liquid injection by longitudinally and horizontally oscillating and driving the liquid distribution pump, and a second supporting mechanism portion 2 loads and supports the reserve tank displaceably into horizontal and inclined attitudes, and performs air bleeding in accompany with liquid injection by vibrating the reserve tank in the lateral and vertical directions. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a coolant injection device for injecting coolant into a cooling module that cools electronic components such as a CPU using the coolant, and a method for manufacturing the cooling module.

In electronic device apparatuses such as personal computers (hereinafter referred to as PCs), demands for high speed processing and large capacity are increasing year by year. Accordingly, in electronic parts such as CPUs, which are semiconductor elements used in PCs, it is expected that the heat generation temperature will continue to increase.
Currently, air cooling with a small fan dominates as a means of cooling electronic components, but this air cooling has limited heat dissipation capability, and electronic components that continue to tend to have high heat generation temperatures can be efficiently used. There is a possibility that it cannot be cooled. In view of this, a water-cooled type in which a cooling medium such as water (hereinafter referred to as “refrigerant liquid”) is circulated to cool electronic components has attracted attention.
For example, [Patent Document 1] discloses a water-cooled cooling device (hereinafter referred to as “cooling module”) that circulates a refrigerant liquid to cool a CPU and the like. [Patent Document 2] and [Patent Document 3] disclose a liquid feed pump that is optimal for use in the above-described cooling module.
JP 2003-124671 A Japanese Patent Laid-Open No. 2003-161284 JP 2003-172286 A

By the way, when the PC is used for a long period of time, the refrigerant liquid in the cooling module gradually evaporates, and eventually the effective capacity may be interrupted to affect the cooling efficiency. For this reason, a reserve tank that stores an amount of refrigerant liquid corresponding to evaporation in advance is disposed in the circulation path of the refrigerant liquid.
As part of a manufacturing apparatus for manufacturing such a cooling module, a refrigerant liquid injection apparatus that automatically injects a refrigerant liquid is used. The reserve tank constituting the cooling module is provided with one or a plurality of inlets, into which the refrigerant liquid is injected from the refrigerant liquid injection device.

When the refrigerant liquid is injected into the reserve tank, there are one or two communication holes (about φ1.5 mm) for letting air, which is a gas, from the circulation path side to the reserve tank, between the reserve tank and the circulation path. It is provided over.
When the injection of the refrigerant liquid from the refrigerant liquid injector to the inlet is actually started, the air in the circulation path and the refrigerant liquid in the reserve tank are exchanged in the communication hole. Although the refrigerant liquid is filled in the circulation path, since the exchange of the refrigerant liquid in the reserve tank and the air in the circulation path is limited to the communication hole, it is difficult to quickly and surely exchange.

If the reserve liquid is filled in the reserve tank before the air in the circulation path and the injected refrigerant liquid are replaced, the communication hole that is the outlet of the air remaining in the circulation path is blocked by the refrigerant liquid. As a result, air remains in the circulation path. If it is used as it is as a cooling module, the cooling performance is lowered due to the influence of residual air.
In addition, in order to secure the refrigerant liquid capacity necessary for the cooling module, it is possible to predict the remaining amount of air when injecting the refrigerant liquid in advance and increase the internal volume of the cooling module beyond the required internal capacity. However, as a result, the size of the cooling module is hindered.

  The present invention has been made paying attention to the above circumstances, and the object of the present invention is to ensure the necessary amount of refrigerant liquid by injecting the refrigerant liquid into the cooling module and ensuring air venting. It is intended to provide a refrigerant liquid injection device and a refrigerant liquid injection method capable of improving the cooling performance as described above.

In order to achieve the above object, the present invention provides a liquid supply pump having an auxiliary reserve tank chamber and a pump chamber communicated via a communication hole, a heat receiving portion, a reserve tank, and a heat radiating portion via a circulation path. In the refrigerant liquid injection device that injects the refrigerant liquid into the cooling module that is communicated with each other,
A liquid inlet provided in an auxiliary reserve tank chamber of the liquid feed pump and a supply unit connected to the liquid inlet, and forcibly supplying the refrigerant liquid from the liquid inlet to the liquid feed pump via this supply part Liquid supply means;
Attaching and supporting the refrigerant liquid supply means, and attaching and supporting the liquid feed pump with the liquid inlet facing upward, and driving the refrigerant liquid supply means and the liquid feed pump to swing back and forth and left and right, A pump support means for venting air when the refrigerant liquid is injected into the liquid feed pump;
The reserve tank is mounted and supported such that the reserve tank can be changed from a horizontal position to an inclined position, and the reserve tank is vibrated in a horizontal direction and a vertical direction, and has tank support means for venting air when the refrigerant liquid is injected into the reserve tank. To do.

In order to achieve the above object, the present invention provides an auxiliary reserve tank chamber communicated through a communication hole, a liquid feed pump having a pump chamber, a heat receiving portion, a reserve tank, and a heat radiating portion via a circulation path. In the manufacturing method of the cooling module, injecting the refrigerant liquid into the cooling module that communicates with each other,
While forcibly injecting refrigerant liquid with the liquid inlet provided in the auxiliary reserve tank chamber of the liquid feed pump facing upward, driving the liquid feed pump to circulate the refrigerant liquid in the circulation path,
During the injection and circulation of the refrigerant liquid, the liquid pump is driven to swing in the front-rear direction and the left-right direction, and air is released from the liquid injection part of the liquid pump.
While the refrigerant liquid is being injected and circulated, the reserve tank is horizontally or tilted and is driven to vibrate in the horizontal and vertical directions to release air from the reserve tank.

  According to the present invention, injection is performed in which air is surely discharged to ensure a necessary amount of refrigerant liquid, and the cooling performance as a cooling module can be improved.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall perspective view of a coolant injection device for injecting coolant into a cooling module M that is a workpiece.
The refrigerant liquid injection device includes a first support mechanism portion (pump support means) 1 and a second support mechanism portion (tank support means) 2 and supports the cooling module M at two parts. At the same time, liquid is poured into the cooling module M.

First, the first support mechanism unit 1 will be described. A pair of supporting leg plates 4a and 4b are erected on the base 3 at a predetermined interval. One support leg plate 4a is bent horizontally at a predetermined height, and the first swing drive source 5 is disposed on the horizontal portion c.
A support shaft 7 is connected to the rotary shaft 5a of the first swing drive source 5 via a coupling 6. The support shaft 7 is supported by a bearing (not shown) provided on the pair of support leg plates 4a and 4b. Is done. Accordingly, the support shaft 7 extends in parallel with the horizontal portion c.

In the support shaft 7 connected to the first rocking drive source 5, in particular, a portion between the pair of support leg plates 4 a and 4 b is not shown here (shown in FIGS. 4 and 5 described later). Two swing drive sources 8 are attached, and a stage 10 is provided on the support shaft 9 of the second swing drive source 8.
That is, the second swing drive source 8 is disposed on the back side of the stage 10, and the support shaft 9 connected to the rotation shaft of the second swing drive source 8 is the first swing drive. It is provided in a direction orthogonal to the axial direction of the support shaft 7 connected to the source 5. Specifically, in FIG. 1, the axial direction of the first swing drive source 5 and the support shaft 7 is horizontal and directed in the left-right direction, and the axial direction of the second swing drive source 8 and the support shaft 9 is horizontal. At the front and back.

Therefore, by driving the first swing drive source 5, the stage 10 is urged to rotate in the A direction, which is the front-rear direction in FIG. Then, regardless of the rotation posture of the stage 10 by the first swing drive source 5, the stage 10 is in the left-right direction in FIG. 1 while being driven by the second swing drive source 8. It is adapted to be urged to rotate in the B direction.
On the front side of the stage 10, a supply body support portion 15 that supports a refrigerant liquid supply body (refrigerant liquid supply means) 13 including a syringe 11 and a piston 12 is provided. The supply body support unit 15 includes a syringe fixing unit 16 and a piston driving unit 17.

In other words, the syringe fixing unit 16 supports the refrigerant liquid supply body 13 in a vertical posture in a state where the stage 10 is in a vertical posture, and supports the syringe 11 in a detachable manner with respect to the stage 10. The piston drive unit 17 includes an air cylinder that holds the upper end of the piston 12 and reciprocates along the axial direction of the refrigerant liquid supply body 13.
An attachment portion 18 that removably supports the main body portion 50 constituting the cooling module M is provided at the stage 10 portion facing the tip of the syringe 11 of the refrigerant liquid supply body 13 supported by the supply body support portion 15. .

The mounting portion 18 pushes up the main body 50 by a toggle mechanism 19 (not shown in FIG. 4 and FIG. 5), and abuts against the front side of the main body 50 so that the main body is placed on the stage 10. The clamp mechanism 20 forcibly pressing the main body 50 is provided, and the main body 50 is securely attached and fixed. In this way, the first support mechanism unit 1 is configured.
The second support mechanism portion 2 includes a rectangular base 21 having a predetermined thickness, and an operation plate 22 is not shown on the upper surface of the base 21 (not shown in FIG. 7 described later). Are overlapped via the actuating mechanism 23.

The actuating mechanism 23 pivotally connects one side e of the actuating plate 22 in the longitudinal direction to the base 21, and regardless of the actuating posture of the actuating plate 22, the actuating plate 22 is a plate surface. A vibration source 24 is provided that applies vibrations in a horizontal direction that is a parallel direction and a vertical direction that is a vertical direction. The vibration source 24 of the operation mechanism 23 includes a weight body such as a so-called vibrator, and expands the vibrations in the horizontal direction and the vertical direction and transmits them to the operation plate 22. In this way, the second support mechanism 2 is configured.
Next, the cooling module M, which is a workpiece, will be described.

As described above, FIG. 1 shows the cooling module M attached to the refrigerant liquid injector. 2 is an overall perspective view of the cooling module M. FIG. 1 shows the entire cooling module M upside down. 3A is a block diagram schematically showing a part of the cooling module M, and FIG. 3B is an exploded perspective view showing the main body 50. As shown in FIG.
The cooling module M communicates with the main body portion 50 formed by integrating the heat receiving plate (heat receiving portion) 30 and the liquid feed pump 40, and the liquid feed pump 40 of the main body portion 50 via the hose P that is a circulation path. The heat dissipation part 60 and the reserve tank 70 are comprised.

First, the main body 50 will be described. The heat receiving plate 30 closes the upper surface opening of the rectangular thin plate-shaped case main body 51 whose upper surface is open. In a state where the completed cooling module M is incorporated into a PC, for example, an electronic component having a large heat generation property such as a CPU is placed on the heat receiving plate 30.
A pump chamber 53 and an auxiliary reserve tank chamber 54 are formed in the case main body 51 whose upper surface opening is closed by the heat receiving plate 30. The pump chamber 53 is a circular recess having a central portion provided at a position deviating from the central position of the main body 50, and a disk-shaped impeller N is rotatably disposed. Although not specifically shown, the rotation shaft d provided at the center of the impeller N is rotatably supported by a bearing portion, and a stator portion constituting the motor is integrally provided on the peripheral surface of the bearing portion.

A cylindrical portion is provided at the peripheral end portion of the impeller N, and a rotor portion constituting the motor is integrally provided on the inner peripheral surface of the cylindrical portion. Accordingly, the pump chamber 53 includes an outer rotor type motor having a rotor portion and a stator portion, and the impeller N is connected to the motor.
As described above, the main body 50 includes the case main body 51 other than the heat receiving plate 30, the pump chamber 53, the auxiliary reserve tank chamber 54, the impeller N, and other members to form the liquid feed pump 40.

The auxiliary reserve tank chamber 54 includes a space portion formed in a substantially U shape around the pump chamber 53 described above. A flow path forming member 55 is provided between the side surface of the pump chamber 53 and the inner wall surface of the case body 51, and the flow path forming member 55 exists in the auxiliary reserve tank chamber 54.
The flow path forming member 55 is bifurcated and formed with a flow path (not shown) in each branch portion. One end of these flow paths is opened to the pump chamber 53, the other end projects integrally from the side surface of the case body 51, one is formed as a suction port body 56, and the other is formed as a discharge port body 57.

The suction port body 56 and the discharge port body 57 are connected to hoses constituting the hose P, respectively. Since the flow path forming member 55 is integrally formed not only at the connection portion with the pump chamber 53 but also at the protruding portion from the side surface portion of the case body 51, direct water (refrigerant liquid) leakage from these portions. There is no occurrence.
A communication hole 58 is provided on the discharge port body 57 side of the flow path forming member 55 so as to penetrate the thick portion. The communication holes 58 are provided on the upper and lower surfaces of the discharge port body 57 and include a total of two communication holes 58. Since the communication hole 58 communicates the flow path formed inside the discharge port body 57 and the auxiliary reserve tank chamber 54, the auxiliary reserve tank chamber 54 and the flow path communicate with each other via the communication hole 58. Will do.

Further, a liquid injection port 59 is provided at a portion communicating with the auxiliary reserve tank chamber 54 on the side surface portion of the case main body 51. At the time of refrigerant liquid injection, the liquid injection port 59 is attached to the stage 10 via the attachment portion 18 so as to face upward. The liquid injection port 59 is formed to have a diameter into which the tip nozzle portion (supply portion) N of the syringe 11 constituting the refrigerant liquid supply body 13 can be inserted.
In other words, it must be possible to insert the tip nozzle portion N into the liquid injection port 59 with a certain margin. As will be described later, the refrigerant liquid is injected from the liquid injection port 59 into the auxiliary reserve tank chamber 54. At this time, the air is set so that air can smoothly escape from the gap between the liquid injection port 59 and the tip nozzle portion N. There is a need.

However, in order to surely vent the air together with the coolant injection, the stage 10 is driven to swing in the front-rear direction and the left-right hole. At this time, the coolant injected from the gap between the liquid inlet 59 and the tip nozzle portion N It is also necessary to provide a gap that can prevent the liquid from jumping out.
The hose P connected to the discharge port body 57 of the liquid feed pump 40 configured as described above is a flexible hose such as a rubber hose, for example, and is an introduction portion provided on the side surface of the heat radiating unit 60. 60a. Similarly, the hose P connected to the suction port body 56 of the liquid feed pump 40 is also a flexible hose such as a rubber hose, and is connected to a discharge-side guide tube 70a provided on the upper surface portion of the reserve tank 70. Connected.

  Further, a lead-out portion 60 b is also provided on the side surface portion of the heat radiating portion 60, and the lead-out portion 60 b and the introduction portion 60 a serve as both end portions of the heat radiating flow path formed in the heat radiating portion 60. And a heat radiating plate with good heat conductivity is provided in the heat radiating flow path to form a so-called radiator structure.

A flexible hose P such as a rubber hose is connected to the lead-out portion 60 b of the heat radiating portion 60, and communicates with a suction side guide tube 70 b provided on a side surface portion of the reserve tank 70.
In this way, the hose P communicating the discharge port body 57 of the liquid feed pump 40 and the introduction part 60a of the heat radiating part 60, the lead-out part 60b of the heat radiating part 60, and the suction side guide pipe 70b of the side part of the reserve tank 70 are connected. A circulation path is formed by the hose P that communicates with the hose P that communicates the discharge-side guide pipe 70 a on the upper surface of the reserve tank 70 and the suction pump body 56.

The heat radiating part 60 and the reserve tank 70 are attached and fixed to a base 80 formed by bending a metal plate. Since the plane area of the reserve tank 70 is smaller than the plane area of the heat radiating unit 60, the base 80 is arranged such that one side surface part of the heat radiating unit 60 and one side surface part of the reserve tank 70 are arranged in the same manner. A hose P communicating the discharge port body 57 and the introduction part 60a of the heat radiating part 60 is extended in a space formed on the other side face part.
FIG. 6 is a schematic cross-sectional view of the reserve tank 70. The reserve tank 70 is a so-called square tank, and the opening end of the suction side guide tube 70b connected to the side surface portion projects only a small amount into the tank 70, but is connected to the upper surface portion. The opening end of the discharge side guide pipe 70b is inserted so as to protrude to a substantially middle part in the vertical direction of the reserve tank 70.

As described above, the cooling module M is configured, and in a state where the cooling module M is incorporated in the PC, an electronic component having high heat generation such as a CPU is mounted on the heat receiving plate 30 constituting the main body 50. The Moreover, the heat radiating part 60 is arrange | positioned in the position interposed in the ventilation path for cooling formed in PC.
The liquid feed pump 40 is driven at the start of the operation as the PC or at a predetermined timing, and the refrigerant liquid circulates in the hose P. On the other hand, the heat receiving plate 30 absorbs the heat generated from the electronic components, and the refrigerant liquid circulating in the pump chamber 53 and the auxiliary reserve tank chamber 54 or the stored refrigerant liquid comes into contact with the heat receiving plate 30. The refrigerant liquid absorbs the heat absorbed by the refrigerant and the temperature rises. The refrigerant liquid whose temperature has risen is sent to the heat radiating section 60 through the hose P by the action of the liquid feed pump 40 and radiates heat.

The refrigerant liquid that has radiated heat at the heat radiating unit 60 and has fallen in temperature is guided to the reserve tank 70 through the hose P by the action of the liquid feed pump 40 and is temporarily stored therein. Then, the refrigerant liquid that has come out of the reserve tank 70 is sent to the main body 50 again and absorbs heat by the heat receiving plate 30. Thereafter, as described above, the refrigerant liquid is circulated to efficiently cool the electronic component.
By the way, when the cooling module M is used for a long period of time, it is inevitable that the refrigerant liquid stored inside naturally evaporates. However, the reserve tank 70 constituting the cooling module M contains a refrigerant liquid for replenishment, and replenishes the refrigerant liquid for natural evaporation. A sufficient amount of refrigerant liquid is always circulated in the heat radiating section 60 together with the hose P, and there is no decrease in heat radiation efficiency.

Further, here, the liquid feed pump 40 includes not only the pump chamber 53 but also an auxiliary reserve tank chamber 54. Since the auxiliary reserve tank chamber 54 communicates with a flow path formed inside the discharge port body 57 via the communication hole 58, the refrigerant liquid in the auxiliary reserve tank chamber 54 is replenished by the amount of natural evaporation, and the reserve tank 70. The auxiliary function of
As shown in FIG. 6 again, the discharge-side guide tube 70a attached to the upper surface portion of the reserve tank 70 protrudes from the upper surface portion to the inside. This is a configuration for preventing air from being contained in the refrigerant liquid guided from the discharge side guide pipe 70a to the liquid feed pump 40 via the hose P.

That is, when air is mixed in the refrigerant liquid guided into the reserve tank 70, the capacity of the reserve tank 70 is large, so that the refrigerant liquid and the air are agitated. In the meantime, the air is separated from the refrigerant liquid, and the specific gravity is lighter than that of the refrigerant liquid, so that it rises and accumulates on the upper surface of the refrigerant liquid.
While acting as the cooling module M, an air reservoir T is formed in the upper part of the reserve tank 70. The ratio of air mixed into the refrigerant liquid guided from the discharge side guide pipe 70a to the liquid feeding pump 40 can be extremely reduced, and the liquid feeding performance in the liquid feeding pump 40 is kept high.
The refrigerant liquid injection device R for injecting the refrigerant liquid into the manufactured cooling module M operates as described below.

The main body portion 50 of the cooling module M is attached and fixed to the attachment portion 18 of the stage 10 constituting the first support mechanism portion 1, and the heat radiating portion 60 and the reserve tank 70 integrated through the base 80 are connected to the second support mechanism portion 1. It is mounted and fixed on the operating plate 22 constituting the support mechanism section 2. The main body 50 needs to be mounted with the main body 50 in a substantially vertical posture with the liquid inlet 59 provided in the liquid feed pump 40 facing upward.
On the other hand, the refrigerant liquid supply body 13 is attached to the supply body support portion 15 provided on the stage 10. In other words, the syringe 11 filled with a predetermined amount of the coolant liquid to be injected into the cooling module M is attached and fixed to the syringe fixing unit 16, and the piston driving unit 17 is engaged with the piston 12. At this time, the tip nozzle portion N of the syringe 11 is inserted into the liquid inlet 59 provided in the liquid feed pump 40.

Further, as shown in FIG. 1, the integrated structure of the heat radiating unit 60 and the reserve tank 70 supported by the second support mechanism unit 2 is such that the heat radiating unit 60 is located on the pivot support side of the operating plate 22 and the reserve Set so that the tank 70 is positioned on the free end side of the operating plate 22 and the discharge side guide pipe 70a of the reserve tank 70 protrudes to the upper surface side.
When necessary settings for the cooling module M and the refrigerant supply body 13 are completed, the refrigerant liquid injection is started. Briefly speaking, when the start button is pressed, the piston drive unit 17 is lowered and the refrigerant liquid in the syringe 11 is forcibly injected into the liquid injection port 59. The refrigerant liquid injected from the liquid injection port 59 is led to the auxiliary reserve tank chamber 54 communicating with the liquid injection port 59 to be filled.

Since the capacity of the auxiliary reserve tank chamber 54 constituting the liquid feed pump 40 is small, the internal pressure is increased only by injecting a small amount of the refrigerant liquid. Therefore, the further downward movement of the piston drive unit 17 is temporarily stopped. During this time, the refrigerant liquid filling the auxiliary reserve tank chamber 54 is guided to the flow path inside the discharge port body 57 of the flow path forming member 55 through the communication hole 58.
By pressing the start button, the impeller N of the liquid feed pump 40 is simultaneously rotated, and the refrigerant liquid led from the communication hole 58 to the discharge port body 57 and the hose P is led to the heat radiating unit 60. Then, the refrigerant liquid is continuously injected from the syringe 11 into the auxiliary reserve tank chamber 54 of the liquid feed pump 40, led to the hose P through the communication hole 58, and further driven from the heat radiating unit 60 to the reserve tank 70 by driving the liquid feed pump 40. To be supplied.

As soon as the refrigerant liquid is full in the heat radiating unit 60 and the reserve tank 70, the refrigerant liquid is led out from the reserve tank 70 and sucked into the liquid feed pump 40. Along with the injection of the refrigerant liquid, the liquid injection is completed in a state in which the air that has been resident in each component of the cooling module M in advance has escaped.
When the refrigerant liquid is injected from the auxiliary reserve tank chamber 54 through the liquid inlet 59, the refrigerant liquid in the auxiliary reserve tank chamber 54 is guided to the hose P from the communication hole 58, while the air in the hose P is connected to the communication hole. Exit from 58 to the auxiliary reserve tank chamber 54. Then, the air guided to the auxiliary reserve tank chamber 54 escapes from the gap between the liquid injection port 59 and the tip nozzle portion N of the syringe 11 to the outside.

Further, the air staying in the heat radiating section 60 and the reserve tank 70 is pushed by the injected refrigerant liquid, and part of the air enters the hose P to expand the hose diameter. Alternatively, it accumulates in the reserve tank 70 via the hose P and remains in the air reservoir T above the liquid level. Alternatively, it circulates out of the reserve tank 70 together with the refrigerant liquid.
However, the diameter of the communication hole 58 is very small, and if the liquid feed pump 40 is supported in the same posture, the amount of air that escapes is very small. And in the reserve tank 70, since the discharge side guide pipe 70a has penetrated the tank upper surface part and protruded inside, if the reserve tank 70 is supported with the same attitude | position, from the air reservoir T formed in a liquid level upper part. Air does not escape to the discharge side guide tube 70.

Therefore, the first support mechanism unit 1 that supports the main body unit 50 and the second support mechanism unit 2 that supports the base 80 in which the heat radiating unit 60 and the reserve tank 70 are integrated are actively driven to communicate with each other. Air is released from the hole 58 and the reserve tank 70.
That is, the first support mechanism unit 1 drives the first swing drive source 5 and drives the stage 10 and the second swing drive source 8 to swing in the A direction shown in FIG. . Specifically, as shown in FIG. 4, the main body 50 is urged to swing in the front-rear direction together with the stage 10 and the refrigerant liquid supply body 13 attached to the stage 10.

One of the communication holes 58 provided in the discharge port body 57 of the liquid feed pump 70 faces upward, or the other communication hole 58 faces upward. The pair of communication holes 58 alternately turn upward, and air is efficiently vented to the auxiliary reserve tank chamber 54.
Then, the refrigerant liquid in the auxiliary reserve tank chamber 54 is greatly fluctuated and agitated, so that air mixed in the refrigerant liquid is separated. The separated air is vented to the outside through the gap between the liquid inlet 59 and the tip nozzle portion N of the syringe 11.

Further, the second swing drive source 8 is driven to drive the stage 10 to swing in the B direction shown in FIG. Specifically, as shown in FIG. 5, the main body 50 is urged to swing in the left-right direction together with the stage 10 and the refrigerant liquid supply body 13 attached to the stage 10.
Therefore, the pair of communication holes 58 are swung left and right, and air is efficiently vented to the auxiliary reserve tank chamber 54. At the same time, the refrigerant liquid in the auxiliary reserve tank chamber 54 is greatly fluctuated and agitated, so that air mixed in the refrigerant liquid is separated. The separated air is efficiently vented from the gap between the liquid inlet 59 and the tip nozzle portion N of the syringe 11 to the outside.

Further, as shown in FIG. 7, the operating mechanism 23 in the second support mechanism unit 2 is driven to vibrate in the lateral direction while holding the heat radiating unit 60 and the reserve tank 70 together with the operating plate 22 in a horizontal posture. In addition, vibration in the vertical direction is applied to remove the air remaining in the heat radiating section 60 and the reserve tank 70.
The actuating mechanism 23 causes the actuating plate 22 to be inclined and applies vibrations in the horizontal direction or the vertical direction while keeping the actuating plate 22 in its posture. During this time, the liquid feed pump 40 is driven, so that the air staying in the heat radiating section 60 is guided to the reserve tank 70 via the hose P. In particular, when the operation plate 22 is inclined, the heat dissipating part 60 is on the lower side and the reserve tank 70 is on the upper side, so that air is smoothly moved from the heat dissipating part 60 to the reserve tank 70.

Then, by applying horizontal and vertical vibrations to the reserve tank 70, the refrigerant liquid in the reserve tank 70 is agitated, and the air mixed in the refrigerant liquid is easily separated. The liquid level is greatly shaken to expose the opening end of the discharge-side guide tube 70a, and air in the tank is sucked during this time. As a result, air is efficiently vented from the reserve tank 70.
In this manner, the refrigerant liquid is injected from the liquid injection port 59, the liquid feed pump 40 is driven to swing in the first support mechanism portion 1, and the reserve tank 70 is driven to vibrate in the second support mechanism portion 2. By doing so, air can be reliably vented from the entire cooling module M, and a predetermined amount of refrigerant liquid can be injected in a shorter time.

The above is a general description of the injection of the coolant liquid into the cooling module M and the forced air venting, but the operation is actually performed according to the flowchart shown in FIG. Details will be described below.
In step S1, a work is set. That is, the main body 50 of the cooling module M is attached and supported on the first support mechanism 1, and the integrated body of the heat radiating part 60 and the reserve tank 70 is attached and supported on the second support mechanism 2. As described above, the liquid injection port 59 provided in the liquid feed pump 40 is attached facing upward. Then, the refrigerant liquid supply body 13 is attached to a predetermined part of the stage, and the tip nozzle portion N of the syringe 11 is inserted into the liquid injection port 59.

In step S2, the start switch is pressed. As a result, the piston 12 moves up and down in step S3, and the refrigerant liquid is injected into the auxiliary reserve tank chamber 54 of the liquid feed pump 40 little by little. In step S4, the liquid feed pump 40 is driven. The refrigerant liquid is sequentially led from the auxiliary reserve tank chamber 54 to the hose P through the communication hole 58 and further led to the heat radiating unit 60 and the reserve tank 70 little by little.
The above steps S1 to S4 are referred to as a first step.
In step S5, the first swing drive source 5 in the first support mechanism 1 is driven to tilt the main body 50 in the front-rear direction. Therefore, the communication hole 58 can be displaced up and down to forcibly remove the air present in the hose P and the like, and the refrigerant liquid is led from the auxiliary reserve tank chamber 54 to the hose P through the communication hole 58 instead. .

In step S6, the operation mechanism 23 in the second support mechanism unit 2 is driven, the reserve tank 70 is set in a horizontal posture or an inclined posture, and vibrations are repeated in the horizontal and vertical directions, and the discharge connected to the upper portion from the reserve tank 70. Forcibly vents air to the side guide tube 70a.
The above steps S5 and S6 are performed at the same time, and these are referred to as a second step.
In step S7, the current value of the liquid feed pump 40 is detected while the operation from step S4 to step S6 is continued. That is, the resistance to the rotation of the impeller N changes depending on whether or not a large amount of air is mixed in the refrigerant liquid guided to the pump chamber 53.

Therefore, if the current value of the liquid feed pump 40 is greater than or equal to a certain value (Yes) in step S7, the process moves to step S8 to stop driving the piston 12 and interrupt the liquid injection. During this time, the liquid feed pump 40 is driven to swing in the front-rear direction to release air from the communication hole 58, and the reserve tank 70 is driven to vibrate in the horizontal and vertical directions to release air from the reserve tank 70. continue. Further, if the current value is below a certain value (No) in step S7, the current value of the liquid feed pump 40 is further detected, and it waits for the current value to become above a certain value.
Shifting from step S8 to step S9, the drive to the piston 12 is stopped, and the current value of the liquid feed pump 40 is detected again while continuing the drive of the liquid feed pump 40 in a state where the injection is interrupted. In addition, if the electric current value of the liquid feeding pump 40 is below fixed (No) at step S9, it will move to step S10 and will restart piston 11 operation | movement, and will return to step S7.

The above steps S7 to S10 are referred to as a third step.
Next, the process proceeds to step S11, and after the set time has elapsed, the vibration drive of the reserve tank 70 is stopped in step S12, and the rocking drive of the liquid feed pump 40 is stopped in step S13. Further, in step S14, the operation of the liquid feed pump 40 is stopped. In these series of operations, the refrigerant liquid enters the hose P from the auxiliary reserve tank chamber 54 through the communication hole 58 and waits for air to naturally escape from the communication hole 58.
The above steps S11 to S14 are referred to as a fourth step.
Next, the process goes to step S15 to drive the second rocking drive source 8 in the first support mechanism 1 to drive the liquid feed pump 40 to rock in the left-right direction. In step S16, the second oscillation drive source 8 is stopped and the inclination of the liquid feed pump 40 is restored. With this action, forced air venting from the communication hole 58 is further performed.

In step S17, the first oscillation drive source 5 is driven to tilt the liquid feed pump 40 in the front-rear direction. In step S18, the liquid feed pump 40 is restarted to circulate the refrigerant liquid. In step S18, the reserve tank 70 is driven to vibrate in the second support mechanism section 2. By repeatedly forcibly releasing the air from the liquid feed pump 40 and the reserve tank 70, the air from the entire cooling module M is further reliably removed.
This is called the fifth step from step S15 to step S20.
Moving to step S21, the operator gazes at the liquid inlet 59 into which the tip nozzle portion N of the syringe 11 is inserted. If the air is bubbled together with the refrigerant liquid from the gap between the tip nozzle portion N and the liquid injection port 59 and is successively exposed, and if it swells and repeats bursting, the air has not been completely removed yet, Since (No) also means that air bleeding is continued, the gaze operation is continued.

In step S21, the presence or absence of bubbles is confirmed, and when no bubbles are produced for a predetermined time (Yes), the operation mechanism 23 in the second support mechanism 2 is stopped by moving to step S22, and the reserve tank 70 vibration is stopped. Further, the operation of the second swing drive source 8 in the first support mechanism 1 is stopped in step S23. In step S24, the operation of the liquid feed pump 40 is stopped, and in step S25, the refrigerant liquid injection and the complete air bleeding for the cooling module M are completed.
The above steps S22 to S27 are referred to as a seventh step.
In addition, although it was set as visual inspection of an operator as an operation | work which confirms the presence or absence of a bubble in step S21, it is not limited to this. For example, when the refrigerant liquid is a colored liquid such as an antifreeze liquid, a color reference value may be set using a color sensor to check the presence or absence of air. That is, if a large amount of air is contained, the density of the liquid color becomes light, and a predetermined dark color is obtained in a state where there is almost no air.

The management for determining whether or not a predetermined amount of refrigerant liquid has been injected into the cooling module M is to measure the weight of the cooling module M before injection of the refrigerant liquid, measure the weight after liquid injection again, Judge by the difference. If an insufficient result still appears, the operator may inject it using a dropper or the like and repeatedly measure the weight of the cooling module Ma.
In order to enhance the reserve tank function, the refrigerant liquid injection device of the present invention is intended for the cooling module M provided with the auxiliary reserve tank chamber 54 in the liquid feed pump 40, but is not limited to this. Refrigerant liquid injection into the cooling module Ma provided with the liquid feed pump 40A (without the auxiliary reserve tank chamber) is also possible.

FIG. 9 shows a normal type cooling module Ma, and the basic configuration composed of a main body portion 50A, a heat radiating portion 60, and a reserve tank 70, in which a liquid feed pump 40A and a heat receiving plate 30 described later are integrated, has changed. Absent.
Although not shown in detail, the liquid feed pump 40A includes only a pump chamber in which the impeller is rotationally driven, and the auxiliary reserve tank chamber 54 described above in the previous embodiment does not exist. A discharge channel 57a and a suction channel 56a are provided between the pump chamber and the case body side surface.

A hose P communicating with the introduction part 60a of the heat radiating part 60 is connected to the discharge flow path 57a, and a hose P communicating with a discharge side guide pipe 70a provided on the upper surface of the reserve tank 70 is connected to the suction flow path 56a. Is done. Further, the communication between the outlet 60b of the heat radiating unit 60 and the suction side guide tube 70b of the side surface of the reserve tank 70 with the hose P is not changed here either.
A liquid injection port 59a communicating with the pump chamber is provided on the side surface portion opposite to the side surface portion where the discharge flow channel 57a and the suction flow channel 56a of the liquid feed pump 40A are provided. The diameter of the liquid injection port 59a may be set exactly the same as the diameter of the liquid injection port 59 provided in the liquid feed pump 40 described above.

In order to inject the refrigerant liquid into the cooling module Ma configured in this way, the main body part 50A in which the liquid feed pump 40A and the heat receiving plate 30 are integrated is provided for the first support mechanism 1 described in FIG. The tip nozzle portion N of the syringe 11 is inserted into the liquid inlet 59a that is attached to the attachment portion 18 and directed upward.
The refrigerant liquid supply body 13 composed of the syringe 11 and the piston 12 is attached to the supply body support portion 15 of the stage 10 without change. Further, here, the heat radiating unit 60 and the reserve tank 70 integrated through the base 80 are mounted and fixed on the operation plate 22 of the second support mechanism 2.

The refrigerant liquid is injected into the cooling module Ma set in this way according to the flowchart shown in FIG.
In step U1, the cooling module Ma, which is a workpiece, is set at a predetermined portion as described above. The refrigerant liquid supply body 13 is also set at a predetermined site, and the syringe tip nozzle portion N is inserted into the liquid injection port 59a facing upward.
In step U2, press the start switch. In step U3, the operation of the piston 12 is started, and in step U4, the liquid feed pump 40A is rotationally driven. Therefore, the refrigerant liquid is guided from the syringe 11 to the pump chamber of the liquid feed pump 40A through the liquid injection port 59a, and is sent from the discharge flow path 57a to the heat radiating unit 60 and the reserve tank 70 through the hose P by the rotation of the impeller. Is done.

Since the liquid feed pump 40A does not have the auxiliary reserve tank chamber 54 and the communication hole 58 like the liquid feed pump 40 in the embodiment described above, the refrigerant liquid injected from the liquid inlet 59a is It is fed from the pump chamber to the hose P through the discharge passage 57a with almost no resistance.
The air existing in the heat radiating unit 60 and the reserve tank 70 is pushed into the hose P by the sent refrigerant liquid, and the diameter of the hose P is expanded. Or it is led to the reserve tank 70 and an air reservoir is formed in the upper part.

The above steps U1 to U4 are referred to as “first process”.
Next, it moves to step U5 and operates the operation mechanism 23 in the 2nd support mechanism part 2. FIG. That is, the reserve tank 70 integrated via the heat radiating unit 60 and the base 80 is driven to vibrate in the horizontal direction and the vertical direction in a horizontal posture or in a state inclined at a predetermined angle.
As a result, the air accumulated in the air reservoir in the upper part of the reserve tank 70 is introduced into the lower end opening of the discharge-side guide pipe 70a, and further led to the pump chamber of the liquid feed pump 40A via the hose P. It is discharged from the inlet 59a to the outside.

  In Step U6, the current value of the liquid feed pump 40A is detected while the operation from Step U3 to Step U5 is continued. At this time, if the current value of the liquid feed pump 40A is equal to or greater than a certain value (Yes), the process proceeds to step U7 to stop driving the piston 12 and interrupt the liquid injection. During this time as well, the operation of the liquid feed pump 40A is continuously performed, and the reserve tank 70 is driven to vibrate in the horizontal direction and the vertical direction to continue the air venting from the reserve tank 70.

Moving from step U6 to step U7, the drive to the piston 12 is stopped, and the current value of the liquid feed pump 40A is detected again in step U8 while continuing the drive of the liquid feed pump 40A again with the liquid injection interrupted. To do. If the current value of the liquid feed pump 40A is equal to or less than a certain value (No), the process moves to Step U9 to resume the operation of the piston 11 and returns to Step U6.
The above steps U6 to U9 are referred to as a third step.
Next, moving to step U10, the operator stares at the liquid injection port 59 in which the tip nozzle portion N of the syringe 11 is inserted. If the air is bubbled together with the refrigerant liquid from the gap between the tip nozzle portion N and the liquid injection port 59 and is successively exposed, and if it swells and repeats bursting, the air has not been completely removed yet, Since the air venting continues (No), the staring work is continued.

In step U10, the presence or absence of bubbles is confirmed, and when bubbles are not completely generated (Yes), the operation mechanism 23 in the second support mechanism 2 is stopped in step U11, and the reserve tank 70 is vibrated. Stop. Further, the operation of the liquid feed pump 40A is stopped in step U12, and the refrigerant liquid injection and the complete air bleeding for the cooling module Ma are completed in step U13.
The above steps U11 to U13 are referred to as a fifth step.
In this manner, the coolant liquid can be injected into the cooling module Ma having the liquid feed pump 40A having only the pump function, and the air can be vented accordingly.
Further, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

The perspective view of the refrigerant | coolant liquid injection | pouring apparatus which inject | pours a refrigerant | coolant liquid to the cooling module based on Embodiment in this invention. The perspective view of the cooling module based on the embodiment. The schematic diagram which abbreviate | omitted some cooling modules based on the embodiment, and the disassembled perspective view which abbreviate | omitted some main-body parts. It is a side view of the refrigerant | coolant liquid injection | pouring apparatus based on the embodiment, and explanatory drawing of the refrigerant | coolant liquid injection | pouring effect | action with respect to a cooling module. It is a front view of the refrigerant | coolant liquid injection | pouring apparatus based on the embodiment, and explanatory drawing of the refrigerant | coolant liquid injection | pouring effect | action with respect to a cooling module. Sectional drawing of the reserve tank of the cooling module based on the embodiment. The figure explaining the air bleeding effect | action from the reserve tank tank of the cooling fluid injection | pouring apparatus based on the embodiment. The flowchart figure at the time of the effect | action which makes air bleeding with refrigerant | coolant liquid injection | pouring based on the embodiment. The schematic block diagram of the cooling module based on other embodiment in this invention. The figure explaining the air bleeding effect | action from the reserve tank tank of the cooling fluid injection | pouring apparatus based on the embodiment.

Explanation of symbols

  58 ... Communication hole, 54 ... Auxiliary reserve tank chamber, 53 ... Pump chamber, 40, 40A ... Liquid feed pump, 30 ... Heat receiving plate (heat receiving portion), 70 ... Reserve tank, P ... Hose (circulation path), M ... Cooling Module, 59, 59A ... liquid inlet, N ... tip nozzle part (supply part), 13 ... refrigerant liquid supply body (refrigerant liquid supply means), 1 ... first support mechanism part (pump support means), 2 ... first 2 support mechanism parts (tank support means).

Claims (6)

Refrigerant liquid is supplied to a cooling module in which a liquid feed pump including an auxiliary reserve tank chamber and a pump chamber, a heat receiving portion, a reserve tank, and a heat radiating portion communicated with each other through a communication path. In the refrigerant liquid injection device for injecting
A liquid inlet provided in an auxiliary reserve tank chamber of the liquid feed pump;
A supply unit connected to the liquid injection port, and a refrigerant liquid supply unit forcibly supplying the refrigerant liquid from the liquid injection port to the liquid feed pump through the supply unit;
The refrigerant liquid supply means is attached and supported, and the liquid feed pump is attached and supported with the liquid inlet facing upward, and the refrigerant liquid supply means and the liquid feed pump are driven to swing in the front-rear direction and the left-right direction. Then, a pump support means for venting air with the refrigerant liquid injection into the liquid feed pump,
The reserve tank is mounted and supported so as to be able to change from a horizontal to an inclined posture, and tank support means for vibrating the reserve tank in a horizontal direction and a vertical direction so as to vent air when the refrigerant liquid is injected into the reserve tank is provided. A refrigerant liquid injecting apparatus comprising: Refrigerant liquid is supplied to a cooling module in which a liquid feed pump including an auxiliary reserve tank chamber and a pump chamber, a heat receiving portion, a reserve tank, and a heat radiating portion communicated with each other through a communication path. In the manufacturing method of the cooling module for injecting
While forcibly injecting the refrigerant liquid with the liquid inlet provided in the auxiliary reserve tank chamber of the liquid feed pump facing upward, driving the liquid feed pump to circulate the refrigerant liquid in the circulation path,
During the injection and circulation of the refrigerant liquid, the liquid pump is driven to swing in the front-rear direction and the left-right direction, and air is released from the liquid injection part of the liquid pump.
During the injection and circulation of the refrigerant liquid, the reserve tank is driven in a horizontal posture or an inclined posture to be vibrated in the horizontal and vertical directions to release air from the reserve tank and to inject the refrigerant liquid. Manufacturing method of cooling module. Refrigerant liquid is supplied to a cooling module in which a liquid feed pump including an auxiliary reserve tank chamber and a pump chamber, a heat receiving portion, a reserve tank, and a heat radiating portion communicated with each other through a communication path. In the manufacturing method of the cooling module for injecting
A first step of supporting a liquid inlet provided in the liquid feed pump facing upward, injecting a refrigerant liquid from the liquid inlet, and driving the liquid feed pump to guide the refrigerant to a circulation path;
While continuing to inject the refrigerant liquid and drive the liquid feed pump, the liquid feed pump is repeatedly swung back and forth and left and right to evacuate the air from the liquid inlet, and the reserve tank is placed in a horizontal or inclined position. A second step of repeatedly oscillating in the vertical and vertical directions and extracting air from the reserve tank;
The current value of the liquid feeding pump is detected to detect the presence or absence of residual air in the circulation path, and according to the result, the refrigerant liquid injection is temporarily stopped while the liquid feeding pump is continuously operated, or the refrigerant liquid injection is performed. A third step of continuing
A fourth step of stopping the vibration with respect to the reserve tank, the swinging with respect to the liquid feeding pump, and the driving of the liquid feeding pump after a set time has elapsed since the start of the first step;
A fifth step of resuming oscillation with respect to the liquid feeding pump, driving of the liquid feeding pump, and vibration with respect to the reserve tank;
A sixth step of confirming whether or not air is discharged from the liquid inlet;
After confirming that there is no air discharge from the liquid inlet in the sixth step, stop the vibration of the reserve tank, the oscillation of the liquid feed pump, and the drive of the liquid feed pump, and the refrigerant liquid A cooling module manufacturing method comprising: a seventh step of completing injection. In a liquid coolant injection device for injecting a liquid coolant into a cooling module in which a liquid feed pump having only a pump function, a heat receiving portion, a reserve tank, and a heat radiating portion are communicated via a circulation path,
A liquid inlet provided in the liquid pump;
A supply unit connected to the liquid injection port, and a refrigerant liquid supply unit forcibly supplying the refrigerant liquid from the liquid injection port to the liquid feed pump through the supply unit;
The reserve tank is placed and supported so that the reserve tank can be changed from a horizontal position to an inclined position, and the reserve tank is oscillated in a horizontal direction and a vertical direction to release air from the reserve tank when the refrigerant liquid is injected into the reserve tank. Means for injecting a refrigerant liquid. In a method for manufacturing a cooling module, injecting a refrigerant liquid into a cooling module in which a liquid feed pump, a heat receiving unit, a reserve tank, and a heat radiating unit communicate with each other via a circulation path,
While forcibly injecting the refrigerant liquid with the liquid inlet provided in the liquid pump directed upward, the liquid pump is driven to circulate the refrigerant liquid in the circulation path,
A cooling module characterized in that, during the injection of the refrigerant liquid and the driving of the liquid feed pump, the reserve tank is driven horizontally and tilted to vibrate in the horizontal and vertical directions to release air from the reserve tank. Manufacturing method. In a refrigerant liquid injection method for injecting a refrigerant liquid into a cooling module in which a liquid feed pump having only a pump function, a heat receiving part, a reserve tank, and a heat radiating part are communicated via a circulation path,
A first step of injecting a refrigerant liquid from a liquid inlet provided in the liquid feed pump and driving the liquid feed pump to guide the refrigerant to the circulation path;
A second step of evacuating air from the reserve tank by repeatedly vibrating the reserve tank in a horizontal position or an inclined position in a horizontal direction and a vertical direction while continuing to inject the refrigerant liquid and driving the liquid feed pump;
The current value of the liquid feed pump is detected to detect the presence or absence of residual air in the circulation path, and according to the result, refrigerant liquid injection is temporarily stopped while the liquid feed pump is continuously driven, or refrigerant liquid injection is performed. A third step to continue;
A fourth step of confirming whether or not air is discharged from the liquid inlet;
After confirming that air is not discharged from the liquid injection port in the fourth step, stop the vibration of the reserve tank, stop driving the liquid feed pump, and complete the refrigerant liquid injection. A method for manufacturing a cooling module.

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