JP2001015662A - Cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize space reduction and power conservation of a cooling device by driving an impeller for cooling liquid by using rotation of a magnet fixed to an air cooling fan side in an air cooling part. SOLUTION: An impeller 16 for water cooling with a magnetic body 15 fixed to an upper surface is fixed to a storage part 13d formed below a partition board 12 rotatively nearly at the center of a heat sink 13. The impeller 16 also rotates as a fan 11 is pulled by a magnet 11b of the fan 11 of an air cooling part 6 provided above the partition board 12. Since the impeller 16 for circulating cooling liquid is rotated while being pulled by the air cooling fan 11 without using driving power in this way, it is possible to eliminate the need for providing a power supply, a control circuit and a motor, respectively in the impeller 16 for cooling liquid circulation of a water cooling part 7 and the air cooling fan 11, and to miniaturize a cooling device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan for air cooling and a fan for cooling liquid for cooling a cooling liquid which has absorbed heat generated by a heating element (heating component) of an electronic device such as a CPU. The present invention relates to an improvement in a cooling device for an electronic device component in which an impeller and an impeller are asynchronously driven by one power source to radiate heat.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 34, an air-cooling cooler 46 having a radiation fin 46b and a fan 46c is provided on a heating element 5 (a heating element shown in FIG. 1) such as a CPU of an electronic device. It was mounted and cooled. 35 and 36.
As shown in the figure, a heat pipe 48 for transmitting heat generated by the heat generating element 5 and the cooler 47 for air cooling and a heat transfer plate 48a for transmitting the generated heat are attached to the heat generating element 5. Heat was dissipating.

[0003]

[0006] However, FIG.
When the heating element 5 is cooled by the method shown in (1), the radiated hot air fills the case of the electronic device, the temperature inside the case rises, and the parts of other electronic devices in the case are also heated, and each component is heated. Had upset the operation.

[0004] In addition, a radiation fin 4 is provided on the heating element 5 and the like which are susceptible to electromagnetic noise due to electromagnetic noise generated when the air cooling fan 46c is driven and rotated.
It was difficult to directly attach the air cooling fan 46c having the 6b. Reference numeral 46a indicates a top plate.

When the heating element 5 is cooled while radiating the heat generated from the heating element 5 to the outside of the case of the electronic device by the method shown in FIGS. 35 and 36, the heat transfer amount of the heat pipe 48 and the heat transfer plate 48a is reduced. Due to the limitations, the heating element 5 is not easily cooled.

In order to compensate for the above-mentioned drawback of the limit of the amount of heat transfer, if the number of heat pipes 48 and heat transfer plates 48a is increased, or if a cooler 47 for air cooling is attached to each of them, the cooling power increases. If the number of heat transfer plates 48 and the number of heat transfer plates 48a are increased, there is a disadvantage that a space in the case of the electronic device for installation is taken up.

Further, if the heat pipe 48 is arranged in a complicated manner, the movement of the liquid in the heat pipe 48 is restricted, and when the electronic apparatus body is actually used, the case body is inclined. In such a case, the usable angle is greatly restricted, and the electronic device itself is very difficult to use.

Therefore, the present invention does not use a heat transfer member such as a heat pipe or a heat transfer plate, but instead circulates a cooling liquid having a large heat capacity between a heat generating component and an air cooling fan to thereby generate heat. By cooling the heat-generating components of an electronic device having a very high volume and driving an air-cooling fan provided with magnets, an impeller for a cooling liquid having a magnetic substance or a conductor provided with a partition wall therebetween is magnetically driven. It is an object of the present invention to provide a cooling device capable of circulating a cooling liquid by following the cooling device.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cooling device for cooling a heating element of an electronic apparatus, wherein a magnetic plate is disposed at a position opposed to a fan having a magnet attached thereto with a partition plate interposed therebetween. By installing an impeller attached to the body and connecting a heat absorbing part that absorbs heat generated from the heating element by a suction pipe and a discharge pipe to a cooler that rotates the impeller that circulates the cooling liquid when the fan rotates, A cooling device is characterized in that a cooling liquid is circulated and cooled between a cooler and the heat absorbing section.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cooling device according to the present invention. FIG. 1 is an overall perspective view of a cooling device according to the present invention, and FIG. 2 is a plan view showing a state where the cooling device according to the present invention is attached to a case of an electronic device. 3 to 11 are views showing a first embodiment of the cooling device according to the present invention. FIGS. 3 to 11 show the cooler 2 constituting the cooling device according to the present invention, and show a basic structure of a horizontal blow-out type cooler having a structure for blowing air in a horizontal direction. As shown in FIG. 1, a cooling device 1 according to the present invention absorbs heat generated from a heat generator 5 and a cooler 2 including an air cooling unit 6 that cools with air and a water cooling unit 7 that cools with a cooling liquid. Heat absorbing section 3, the cooler 2 and heat absorbing section 3
A suction pipe 4 for sucking the cooling liquid and a discharge pipe 4a for discharging the cooling liquid are connected to each other. As shown in FIG. 1, the cooler 2 and the heat absorbing section 3 are connected by a suction pipe 4 and a discharge pipe 4a.

In a heat absorbing section 3 attached to an upper portion of a heating element 5 which is a heat generating component such as a CPU, a pipe through which a cooling liquid flows is formed in a wave shape and housed inside the heat absorbing section 3.
This is because the heat generated from the heating element 5 can be efficiently absorbed by increasing the heat absorption area for absorbing the heat generated from the heating element 5 by forming a wavy tube.

As shown in FIG. 1, the heat generated by the heating element 5 is absorbed by the cooling liquid in the corrugated tube in the heat absorbing section 3, and the cooling liquid in the heat absorbing section 3 that has absorbed and warmed passes through the suction pipe 4. And flows into the cooler 2 to be cooled. The radiated cooling liquid cooled in the heat generator 2 flows out of the cooler 2 through the discharge pipe 4 a into the heat absorbing section 3, and absorbs heat generated from the heating element 5.

The cooling liquid absorbs heat generated from the heating element 5, and the heated and cooled liquid radiates heat when passing through the inside of the cooler 2. In this way, the heat is circulated repeatedly between the suction pipe 4 connecting the heat absorbing unit 3 and the cooler 2 and the discharge pipe 4a. It is preferable to use a coolant that is hard to rot, has durability, rust resistance, oxidation resistance and high heat capacity.

FIG. 2 is a diagram showing a state in which the cooling device according to the present invention is mounted in a case of an electronic device. As shown in FIG. 2, a heat absorbing portion 3 is attached to a heating element 5 such as a CPU provided inside a case 1a of an electronic device such as a computer so that hot air generated in the case 1a can be exhausted to the outside. The cooler 2 is installed on the side of the case 1a, and the suction pipe 4 and the discharge pipe 4a through which the coolant flows are attached between the cooler 2 and the heat absorbing section 3.

The cooler 2 radiates the heat stored in the coolant to the outside. By providing the cooler 2 on the side surface of the case 1a, the hot air in the case 1a is removed as shown by an arrow in the case 1a. It is installed so that it can be discharged outside the case 1a.
Of course, as will be described below, both the horizontal blow-out type air cooling unit as the first embodiment of the cooler 2 and the axial flow type air cooling unit as the second embodiment of the cooler both ventilate the inside of the case 1a. It is desirable to install it as much as possible. The cooling device 1 shown in FIGS. 1 and 2 shows a first embodiment of the cooling device 1.

As shown in FIGS. 1 and 2, by disposing the heat absorbing portion 3 and the cooler 2 apart from each other, even if the heating element 5 is a component having weak electromagnetic noise, the noise generated from the cooler 2 can be improved. Is not affected by the heat generating element 5 and the heat generating element 5 does not malfunction.

FIG. 3 is a perspective view of a first embodiment of a cooler constituting a cooling device according to the present invention. A first embodiment of a cooler 2 constituting the present cooling device 1 is shown in FIGS.
The cooler 2 constituting the present cooling device 1 includes an air cooling unit 6 and a water cooling unit 7. Hereinafter, the cooler 2 shown in FIGS. 3 to 11 will be described.

FIG. 3 to FIG. 11 show the basic structure of a horizontal blow-out type cooler constituting the present cooling device. FIG. 3 is an overall enlarged perspective view of a first embodiment of a cooler constituting the cooling device 1, FIG. 4 is a plan view thereof, FIG. 5 is a bottom view thereof, FIG. 6 is a front view thereof, and FIG. 8 is a sectional view taken along the line BB 'shown in FIG. 6, and FIG. 8 is a sectional view taken along the line CC' shown in FIG.

FIG. 9 is an exploded view of the air cooling unit of the cooler.
FIG. 10 is an exploded view of the water cooling unit. FIG. 11 is an overall sectional view taken along the line AA ′ shown in FIGS. 3, 4, and 5.

First, based on FIG. 9 and FIG.
Will be described. As shown in FIGS. 9 and 11, the air-cooling unit 6 constituting the cooler 2 includes a support arm 8a, a printed circuit board 8b, a lead wire 8d, a rotating shaft 11c to which a rotating member 8c is fixed, and a coil 9. A top plate 10 having an opening 10a formed in the center and a screw hole formed in a corner; Screws 10b, 10b, 10b, 10b for screwing and attaching to the fan, a fan 11 having magnets 11b and blades 11a and attached to the rotating shaft 11c, and a partition separating the air cooling unit 6 and the water cooling unit 7. It is composed of a plate 12, a heat radiating plate 13 in which a heat radiation fin 13a and a support 13b are erected and a circular through hole 131 having a fitting groove 13c is formed in the center.

As shown in FIGS. 3 and 4, a supporting arm 8 is provided on the disk-shaped stator 8 for rotatingly driving the rotating member 8c.
a, 8a, 8a are formed radially in three directions, and each of the distal ends of the support arms 8a, 8a, 8a extends over the opening 10a formed on the top plate 10 so that the opening 10a
Is fixed to the opening edge. The disk-shaped stator 8
As shown in FIGS. 6 and 9, a printed circuit board 8b for controlling the drive of the fan 11 is attached to the lower surface of the.

The stator 8 supports a rotating shaft 11c to which the rotating member 8c is fixed, and drives the rotating shaft 11c to rotate. As shown in FIGS. 9 and 11, a coil 9 is mounted under a circuit board 8b mounted on the lower surface of the stator 8, and as shown in FIG. There is a rotating member 8c that rotates.

As shown in FIG. 9, the fan 11 has a rotating shaft 11c and a plurality of blades 11 fixed to the rotating shaft 11c.
It is composed of a cylindrical body provided with a radially and a magnet 11b housed in the cylindrical body.

A stator 8 having a circuit board 8b, a coil 9, a rotating shaft 11c to which a rotating member 8c is fixed, and the like;
A driving unit is configured by a magnet 11b fixed to an upper surface of the fan 11, and the driving unit drives the air cooling fan 11 to rotate.

The top plate 10 to which the stator 8 is attached is shown in FIG.
As shown in FIG. 11, screws 10b, 10b, 10b, and 10b are formed in screw holes formed in pillars 13b, 13b, 13b, 13b provided at four corners of the upper surface of the heat sink 13.
10b is screwed in by screwing. As described above, the station on which the fan 11 for air cooling is mounted is provided.
The fan 11 is installed in the radiation fin 13a by attaching the top plate 10 to the fan 8.

Around the fan 11 for air cooling, FIG.
As shown in FIG. 7 and FIG.
Are erected so as to surround the fins 13a.
Many radiating fins 13 erected on the upper surface of the radiating plate 13
The height of a is the same as the height of the support 13b, as shown in FIG.
When the screws 3b, 13b are attached with screws 10b, 10b, 10b, 10b, the upper surface of the large number of radiating fins 13a is
0 is in close contact with the lower surface.

A number of radiating fins 13a, 13a, 13a, 13a, 13a, 13a erected on the upper surface of the radiating plate 13.
... Dissipate the heat stored in the heat sink 13 into the air. When the fan 11 for air cooling rotates, FIG.
As shown by an arrow in FIG. 1, the structure has a structure in which cold air taken in from the opening 10a of the top plate 10 passes through the gap between the radiating fins 13a and radiates heat stored in the radiating plate 13.

As shown in FIG. 2, if the cooler 2 of the cooling device of this embodiment is provided on the side of the case 1a and the air outlet of the cooler 2 is limited to the side of the case 1a. The hot air in the case 1a can be discharged to the outside.

Here, since the role of the heat radiating plate 13 is extremely important, it will be described in detail with reference to the accompanying drawings. Heat sink 1
Numeral 3 denotes a part of each of the air-cooling unit 6 and the water-cooling unit 7 as shown in FIGS. 9 and 10 and exchanges heat between the cooling liquid and the air. It plays an important role in doing so. Of course, the material of the heat sink 13 is preferably a metal having high thermal conductivity such as aluminum.

As shown in FIG. 9, the heat radiating plate 13 has four pillars 13b through which screws 10b are inserted at four corners on the upper surface of the heat radiating plate 13.
13b, 13b, 13b are erected and a number of radiating fins 13a, 13a, 13a, 13a, 13a, 13a, 13a, 13b, 13a, 13a, 13a are at the same height as the columns 13b, 13b, 13b, 13b.
... stand up.

As shown in FIG. 9, a large number of heat radiation fins 13a, 13a, 13a, 13a, 13a, 13a.
A through hole 13l is provided in the center of the heat radiating plate 13 on which the pillars 13b, 13b, 13b, 13b are erected, so that the partition plate 12 can be fitted tightly (watertightly). 13c is formed, and the partition plate 1 is inserted into the fitting groove 13c.
When 2 is fitted, the upper surface of the heat sink 13 becomes flat.

As shown in FIG. 11, when the partition plate 12 is fitted into the fitting groove 13c of the through hole 131, the partition plate 1 is fitted.
A storage section 13d that can store the impeller 16 is formed on the lower surface of the second member 2. When the partition plate 12 is fitted into the fitting groove 13c, the air cooling portion 6 is formed on the partition plate 12, and the water cooling portion 7 is formed below.

Hereinafter, the water cooling section 7 formed by fitting the partition plate 12 into the fitting groove 13c and formed below the partition plate 12 will be described in detail.

As shown in FIGS. 10 and 11, the water cooling section 7 connects the heat radiating plate 13 on which the heat radiating fins 13a and the columns 13b are erected on the upper surface and the suction pipe 4 through which the cooling liquid sent from the heat absorbing section 3 passes. An insertion hole formed in the heat radiating plate 13 for connecting a suction nozzle 14 inserted and fixed in the insertion hole 17c of the bottom plate 17 to be discharged and a discharge pipe 4a for sending the cooled coolant to the heat absorbing section 3. It comprises an ejection nozzle 18 inserted and fixed to 13f, an impeller 16 having a magnetic body 15 fixed to the upper surface, and a bottom plate 17.

As shown in FIGS. 8 and 11, the water cooling section 7 constituting the cooler 2 has a delivery channel 13e formed in a circular groove formed in the center of the heat radiating plate 13; The bottom plate 17 has two receiving passages 17a formed in circular grooves. A water-cooling impeller 16 for circulating a cooling liquid is rotatably mounted in the delivery channel 13e and the storage section 13d.

The storage portion 13d formed substantially at the center of the radiator plate 13 and below the partition plate 12 is provided with a housing 13d shown in FIGS.
As shown in FIG. 1, an impeller 16 for water cooling having a magnetic body 15 mounted on the upper surface is rotatably mounted. The diameter of the impeller 16 is slightly smaller than the diameter of the storage portion 13d, and the impeller 16 is attached so that the impeller 16 can rotate smoothly along the storage portion 13d.

The magnetic body 15 of the impeller 16 is fixed on the upper surface of the impeller 16. The magnet 11 of the fan 11 of the air cooling unit 6 provided above the partition plate 12
When the fan 11 rotates, the impeller 16 rotates. That is, the magnets 11b, 11b attached to the fan 11 form a motor for rotating the fan 11, but the rotation of the magnet 11b is utilized to attract the magnet 11b to rotate the impeller 16, so that the impeller 16 is rotated. is there.

The impeller 16 for circulating the cooling liquid
Is rotated while being attracted to the air-cooling fan 11 without using a driving force, so that the respective power sources, control circuits, and motors of the impeller 16 for cooling liquid circulation of the water-cooling section and the fan 11 for air cooling are rotated. There is no need to provide them, and the size can be extremely reduced.

As shown in FIG. 11, if the impeller 16 for the cooling liquid is rotated with the rotation speed of the fan 11 for the air cooling, the speed of circulation of the cooling liquid becomes very high, Rotating axis 1 during acceleration when circulating liquid
Although the load on 1c is extremely high, the cooling liquid impeller 16 is gradually accelerated by not providing the air cooling fan 11 and the water cooling impeller 16 for sending out the cooling liquid on a common rotating shaft. However, it is possible to slowly rotate the air-cooling rotary shaft 11c without imposing a load on the rotary shaft 11c.

Of course, the magnetic body 15 fixed to the upper surface of the impeller 16 may be a conductor. When the fan 11 is rotated when the conductor is provided on the impeller 16, an eddy current flows through the conductor with respect to the magnetic field generated by the magnet 11 b provided on the fan 11, and a rotational torque is generated in the same direction as the fan 11. To rotate the impeller 16. Further, a magnetic body can be attached to the lower part of the conductor as a back yoke. With such a structure, the magnetic force of the magnet can be efficiently applied to the conductor. Therefore, the material of the partition plate 12 needs to be a non-magnetic material and a non-conductive material so as not to be affected by a magnetic field and an electric field.

As shown in FIGS. 10 and 11, the impeller 16 has a plurality of blades 16a vertically extending radially around a rotation shaft 16b. As shown in FIG. 11, the diameter of the impeller 16a is smaller than the diameter of the delivery channel 13e.

The delivery flow path 13e is a cylindrical flow path formed below the storage section 13d, and the cooling liquid flowing from the suction nozzle 14 passes through the suction flow path 17b and passes through the receiving flow path 1b.
It passes through 7a and enters the delivery channel 13e. As shown in FIG. 11, when the impeller 16 mounted in the storage portion 13 d and the delivery channel 13 e rotates, the cooling liquid is sucked by the impeller 16, pushed out in the direction of the discharge nozzle 18, and the cooling liquid is discharged from the discharge nozzle 18. It is sent out into the discharge pipe 4a.

A receiving channel 17a is formed below the sending channel 13e, as shown in FIG. A suction channel 17b is connected to the receiving channel 17a, and the diameter of the receiving channel 17a is slightly smaller than the diameter of the sending channel 13e, as shown in FIG.

The receiving passage 17a is formed in the center of the bottom plate 17, and the bottom plate 17 is attached to the lower surface of the heat radiating plate 13 in a watertight manner by screws 10b. It is discharged from the discharge nozzle 18 by rotation.

A direct current path 17b is formed on the right side of the receiving flow path 17a, and an insertion hole 17c is provided on the right end of the bottom plate 17, and a hollow suction nozzle 14 is attached so as to communicate with the insertion hole 17c. Have been. When the impeller 16 rotates, as shown in FIG. 11, the coolant is sucked from the liquid pipe 4 and sent out to the delivery channel 13e.

The suction nozzle 14 inserted and fixed in the insertion hole 17c of the bottom plate 17 and the discharge nozzle 1 inserted and fixed in the insertion hole 13f formed in the heat radiation plate 13.
In 8, irregularities are formed on the outer peripheral surfaces of the suction nozzle 14 and the discharge nozzle 18 so that the suction tube 4 and the discharge tube 4 a are not easily detached.

As shown in FIG. 9, the stator 8 constituting the air cooling unit 6 has a lead wire 8d. In addition, since a motor for rotating the fan 11 for air cooling is incorporated in the stator 8, a power source for the motor must be provided by actually providing a lead wire 8d. As shown in FIG. 9, the lead wire 8d has a groove formed in the stator 8 for accommodating the lead wire 8d.
And the lead wire 8d is housed in the groove and pulled out.

Next, FIGS. 12 to 15 show a second embodiment of the cooler constituting the cooling device according to the present invention.
As shown in FIG. 15, the cooler 19 of the cooling device 1 shown in FIGS. 1 to 11 uses an air flow formed in the cooler 19 in a vertical direction as shown in FIG. 9 shows an axial-flow type cooler discharged downward from a passage 28b.

FIGS. 12 to 15 are views for explaining the external appearance and internal configuration of a second embodiment of the cooler of the cooling device according to the present invention. FIGS. 12 to 15 show the basic structure of an axial-flow type cooler. 12 is a plan view of the cooler, FIG. 13 is a perspective view, FIG. 14 is a front view, and FIG.
FIG. 14 is a longitudinal sectional view taken along line AA ′ shown in FIGS. 2 and 13. The cooler 19 of the present embodiment includes an air-cooling unit 20 and a water-cooling unit 21 as shown in FIGS. 14 and 15, similarly to the cooler 2 of the first embodiment. Hereinafter, the structure of the air cooling unit 20 will be described, and then, the water cooling unit 21 will be described.

First, the air cooling section 20 will be described below. As shown in FIG. 12, the air cooling unit 20 has an opening 22a.
Is formed, and the support arms 22c, 22c,
22c is formed, and the top plate 2 is formed by the support arm 22c.
Stator 22b attached to second opening 22a
And a fan 24 having a blade 24a attached to the rotating shaft 24c of the rotating member 22e, on which a printed circuit board 22d and a coil 23 are arranged and rotated outside a rotating member 22e attached to the rotating shaft 24c. Channel 2
8b is formed, and is composed of a heat radiating plate 28 and a bottom plate 17 on which columns and heat radiating fins 28c are erected. As shown in FIG. 13, a large number of air flow paths 28b, 28b,
8b, 28b, 28b,... Are formed, and a number of radiating fins 28c, 28c, 28c, 28c, 28c, are provided between the air flow paths 28b.
.. Are formed. Also, as shown in FIG. 15, the bottom plate 17 has air passages 28b, 28b,.
Is formed.

The stator 22b is, as shown in FIG.
It comprises a circuit board 22d for controlling the driving of the fan 24, a coil 23, a rotating member 22e, and a rotating shaft 24c. As shown in FIG. 15, the rotating member 2 is provided above the rotating shaft 24c.
2e is attached, a circuit board 22d is arranged outside the rotating member 22e, and a coil 23 is arranged below the printed circuit board 22d and outside the rotating member 22e.

Below the rotating shaft 24c, a rotating shaft 24
A magnet 24b is mounted near c, and a fan 24 having blades 24a mounted outside the magnet 24a is rotatably fixed.

As described above, the rotating shaft 24c, the circuit board 22
d, a coil 23, a stator 22b such as a rotating shaft 24c to which the rotating member 22e is fixed, a magnet 24b fixed to the fan 24, and the like constitute a driving unit. A rotating member 22e fixed to the rotating shaft 24c is rotated by a stator 22b constituting a driving unit, and a fan 24 fixed to a lower portion of the rotating shaft 24 is rotated.

As shown in FIGS. 12 and 14, the top plate 22 to which the stator 22b is fixed is fixed to the heat radiation fins 28c of the heat radiation plate 28 with screws 22f. Further, as shown in FIG.
b fan 24 rotatably mounted in the downward direction
Are the top plate 22, the heat radiating plate 28, and the heat radiating fins 28c, 28.
c.

As shown in FIG. 13, the radiator plate 28 is formed with a plurality of air passages 28b and radiator fins 28c. Radiating fins 28c are formed between the air passages 28b. Each corner is provided with a screw 2 for attaching the top plate 22.
Screw holes 28d, 28d, 28d, 28d for inserting 2f
There is.

The opening 22a of the top plate 22 shown in FIG.
The air passages 28b formed in the heat sink 28 shown in FIG. 13 communicate with each other. When the fan 24 rotates, cool air is taken in from the opening 22a,
The air is discharged downward through the air flow path 28b formed at the bottom.

As shown in FIG. 13, the radiator plate 28 and the radiator fins 28c and 28 provided on the radiator plate 28 are provided.
The heat stored in c, 28c, 28c, 28c,... propagates to the radiation fins 28c and is radiated into the air from the air passage 28b. The radiating fins 28c have a plurality of air flow paths 28b, 28b, 28b, 28b, 28b,.
Since the fan 24 is provided between the air passages 28b, the heat is radiated more from the air passage 28b when the fan 24 rotates. As shown by the arrows in FIG. 15, a plurality of air flow paths formed between the heat dissipating fins 28c shown in FIG. 13 and the cool air introduced from the openings 22a of the top plate 22 shown in FIG. By passing through 28b, the heat stored in the heat radiating plate 28 can be radiated more efficiently. By rotating the fan 24 of the air cooling unit 20 in this manner, the heat absorbing unit 3 that has absorbed the heat generated from the heating element 5
From the cooling liquid sent from the suction pipe 4 can be radiated.

Next, the structure of the water cooling section 21 which is separated by the partition plate 25 and formed between the heat radiating plate 28 and the bottom plate 17 will be described in detail.

The water-cooling section 21 is shown in FIGS.
As shown in FIG. 7, a circulating portion 29 is formed at the center of the heat sink 28. An impeller 27 is rotatably mounted on a rotating shaft 27b in the circulation portion 29, and a magnetic body 26 is mounted on an upper surface of the impeller 27.
Reference numeral 14 denotes a suction nozzle for connecting the suction pipe 4, and reference numeral 18 denotes a discharge nozzle for connecting the discharge pipe.

As shown in FIG. 15, the heat radiating plate 28 is a member for conducting and exchanging heat between the coolant and the air.
The cooling device 1 of the present invention plays an important role. For this reason, the material of the heat sink 28 is preferably a metal having high thermal conductivity such as aluminum.

As shown in FIG. 13 and FIG.
In 9, an impeller 27 for sending out the cooling liquid is rotatably mounted. The circulation section 29 is formed with a delivery channel 29d and a receiving channel 29c, and both are in communication. Outside the circulating portion 29, a plurality of radiating fins 28c, 28c,... And an air flow path 28b are formed so as to surround them.

The fan 24 of the air cooling unit 20 and the impeller 2 of the water cooling unit 21 are located above the impeller 27 for circulating the cooling liquid installed in the circulation unit 29.
There is provided a fitting groove 28a for attaching a partition plate 25 for isolating the partition 7 from water 7 in a watertight manner. The fitting groove 28a
When the partition plate 25 is fitted to the fin, the upper surface of the radiator plate 28 becomes flat.

When the partition plate 25 is fitted into the fitting groove 28a, the upper surface of the delivery flow path 29d below the fitting groove 28a is covered with a lid, and the partition plate 25 is connected to the air cooling section 20 and the water cooling section. The air cooling unit 20 is formed above the partition plate 25, and the water cooling unit 21 is formed below the partition plate 25.

As shown in FIG. 15, when the partition plate 25 is fitted in the fitting groove 28a in a water-tight manner, the partition plate 25 is divided into the air cooling section 6 and the water cooling section 7. Delivery channel 29 formed in circulation section 29
The relationship between d and the receiving channel 29c is that the diameter of the sending channel 29d is formed to be slightly larger than the diameter of the receiving channel 29c. The impeller 27 is mounted in the delivery flow path 29d.

As shown in FIGS. 13 and 15, a suction channel 29b is formed from the receiving channel 29c to the insertion hole 29a at the right end of the bottom plate 17, and a delivery channel 29d is formed.
To the insertion hole 29f of the heat sink 28 from the discharge passage 29e.
Are formed.

The suction nozzle 14 is inserted into the insertion hole 29a, and the discharge nozzle 18 is inserted into the insertion hole 29f.
Is plugged in. The shapes of the suction nozzle 14 and the discharge nozzle 18 are the suction pipe 4 and the discharge pipe 18 for the cooling liquid.
Are formed on the outer peripheral surface so that they can be connected in a watertight manner and do not come off. Of course, the shape of each of the nozzles 14 and 18 is not limited as described above, and the tip of the cooling liquid tube may be tightened with a band or the like.

As shown in FIG. 15, a suction flow passage 29b is formed below the delivery flow passage 29d near the suction nozzle 14, and communicates with the suction flow passage 29b. Are formed. The receiving channel 29
The diameter of c is slightly smaller than the diameter of the delivery channel 29d, as shown in FIG.

The suction channel 29b, the receiving channel 29c and the sending channel 29d are formed at the lower part of the partition plate 25 and are channels for the coolant. As shown in FIG. 15, when the impeller 27 in the circulating unit 29 rotates, the coolant in the receiving channel 29c is sucked upward by the impeller 27, and
The coolant flows from the suction nozzle 14 toward the discharge nozzle 18, and the coolant is sent from the discharge nozzle 18 to the heat absorbing unit 3.

As shown in FIG. 15, the impeller 27 has a structure in which a plurality of blades 27a are suspended from the lower surface and a magnetic body 26 is attached to the upper surface. As shown in FIG. 15, the diameter of the impeller 27a including the blade 27a is formed to be slightly smaller than the diameter of the delivery channel 29d so as to be rotatable.

The magnetic body 26 on the upper surface of the impeller 27
It is fixed to the upper surface of the impeller 27. Then, the impeller 27 is rotated when the fan 24 is rotated by the magnet 24 b of the fan 24 of the air cooling unit 20 provided above the partition plate 25. Of course, the magnetic body 26 fixed to the upper surface of the impeller 27 may be a conductor. The material of the partition plate 25 needs to be non-magnetic and non-conductive so as not to be affected by a magnetic field and an electric field. The impeller 27 for the cooling liquid is moved to the fan 24 for the air cooling without using the driving force.
By rotating while being attracted to each other, the respective power supplies of the impeller 27 for the cooling liquid and the fan 24 for the air cooling,
There is no need to provide a control circuit and a motor, and the size can be extremely reduced.

As shown in FIG. 2, the CP mounted inside the case 1a of an electronic device such as an electronic computer.
The heat absorbing unit 3 is attached to a heating element 5 such as U, and the cooler 2 of the first embodiment is discharged so that the hot air in the case 1a can be exhausted to the outside.
Instead of this, the cooler 19 of this embodiment can be installed on the side of the case 1a.

Of course, like the cooler 2 of the first embodiment, the cooler 19 of this embodiment is for radiating the heat absorbed and stored by the cooling liquid to the outside of the heating element 5. By providing it on the side surface of the case 1a, it is possible to install the hot air in the case 1a so as to be able to ventilate the outside of the case 1a as shown by an arrow in the case 1a.

Next, FIG. 16, FIG. 17, FIG. 18 and FIG.
FIG. 2 is a longitudinal sectional view showing a positional relationship between a coil, a magnet, a magnetic body, and the like of a fan and an impeller mounted in a cooler of the cooling device according to the present invention. FIG. 16 and FIG.
7, the positional relationship between the fan 31 and the impeller 34 and the positional relationship between the coils, magnets, magnetic bodies, etc. will be described in detail with reference to FIGS.

FIG. 16 shows an air cooling unit having the coil 30, the magnet 31b, the fan 31, and the like shown in FIGS.
It is the figure which expanded a part of water cooling part which has the impeller 34 to which the magnetic body 33 was attached via the partition plate 32. FIG. 16 shows the first embodiment of the cooler (FIG. 11) and the second embodiment.
15 shows a positional relationship among a coil 30, a magnet 31b, a magnetic body 33, and the like in the embodiment (FIG. 15).

The positional relationship shown in FIG. 16 is such that the fan 31 attached to the rotating shaft 31c has the magnet 31b attached near the rotating shaft 31c and the magnet 31b.
A blade 31a is attached outside b. A coil 30 is provided directly above the magnet 31b attached to the fan 31. A magnetic body 33 is mounted on the upper surface of the impeller 34 attached to the rotating shaft 34b below the partition plate 32 separating the air cooling unit 6 and the water cooling unit 7, and a blade 34a is provided on the lower surface of the impeller 34 and outside. It is.

The magnet 31 attached to the fan 31
When the fan 31 is rotated by the coil 30 above b,
Utilizing the magnetic force of the magnet 31b attached to the fan 31, the magnetic body 33 of the impeller 34 below the partition plate 32 is attracted and followed by the magnetic force of the magnet 31b to rotate the impeller 34.

As shown in FIG. 16, the positional relationship between the magnet 31b provided in the fan 31 and the coil 30 is such that the coil 30 is provided at the upper position and the magnet 31b is provided at the lower position. However, as shown in FIG. 17, in order to more efficiently attract the magnetic body 33 on the upper surface of the impeller 34, the magnet 31b of the fan 31 is not used, and the magnet 35 for induction is newly added to the fan 3.
1 may be provided.

FIG. 17 shows a third embodiment of a cooler constituting a cooling device according to the present invention, and shows a positional relationship of coils, magnets, magnetic materials, and the like in the third embodiment. Fan 31
As shown in FIG. 17, the coil 30 is disposed outside the rotation shaft 31c.
And a magnet 31b is provided outside the coil 30. A magnet 35 is attached below the coil 30 and the magnet 31b.
The blade 31a is provided on the outside of 5.

The water cooling units 7 to 6 are connected to the fans 31 of the air cooling units 6 to 6d.
By providing the magnet 35 for attracting the magnetic body 33 of the 7d impeller 34, the impeller 34 can always be moved by the magnetic force without depending on the driving method of the fan 31.

FIG. 18 shows a fourth embodiment of the cooler of the cooling device according to the present invention. In the cooler 6 of this example, the rotating shaft 31
A coil 30 is provided outside the coil c, a magnet 31b is provided below the coil 30, and a magnet 35 to be referred is attached below the magnet 31b. And the impeller 34
A magnetic body 33 for guidance is provided outside the upper surface of.

FIG. 19 shows a fifth embodiment of the cooler of the cooling device according to the present invention. In the cooler 6 of this example, the fan 31
The magnet 31b is provided outside the rotation shaft 31c of the
A coil 30 is provided on the partition plate 32 below 1b, and a magnetic body 33 is provided below the coil 30 on the outside of the upper surface of the impeller 34 with the partition plate 32 interposed therebetween. Regarding the positional relationship between the coil, the magnet, the magnet to be referred, the magnetic material, and the like shown in FIGS.

Next, in FIGS. 20 to 24, the shapes of the stator, the fan, and the radiation fins are improved to suppress the noise generated when the fan rotates, and to allow the heat to be efficiently radiated. Another embodiment of the vessel will be described.

FIG. 20 is a cross-sectional view of a cooler of a cooling device according to a sixth embodiment of the present invention. FIG. 20 is a cross section taken along the same line as the cross section taken along line BB 'of the first embodiment of the cooler shown in FIG. As shown in FIG. 20, the blades 36a, 36a, 36a, 36a, 36a3 of the rotating fan 36 mounted in the radiation fins 13a.
6a, 36a,... Are curved leftward.

That is, the air cooling section 6 of the cooler 2a shown in FIG.
7A is a horizontal blow-out type fan.
The tip of the blade 11a of the fan 11 attached to the air cooling unit 6 of the first embodiment of the cooler shown in FIG. Thus, in this example, the blades 36a, 36a, 36a, 36a, 36a, 36a,.
.. Can be reduced in a certain direction, so that noise generated by rotation of the fan 36 can be reduced.

In FIG. 20, reference numeral 36c indicates a rotation axis. Except for the fan 36, the other configuration including the radiator plate 13 in the cooler 2a is the same as that of the cooler of the first embodiment shown in FIGS.

FIG. 21 is a plan view of a cooler of a cooling device according to a seventh embodiment of the present invention. Cooler 2b shown in FIG.
Arm 37a provided on the stator 37 of the air cooling unit 6b
FIG. 4 shows a first embodiment of the cooler shown in FIG. 4 which is a horizontal blowout type, and extends the support arm 8a of the stator 8 provided at the air cooling section 6 by extending the rear end portion in the rotation direction of the fan 11. Part 37
, 37c, 37c, 37c, 37c, 37c,... and the extension 37c is inclined downward. With such a configuration of the support arm 37a, noise generated from the blades due to rotation of the fan can be reduced.

In this embodiment, the status of the
7 and a support arm 37a formed in the shape of a stationary blade for reducing the generation of sound radially, and the tip of the support arm 37a is attached to the opening 10a in order to install it on the opening edge of the opening 10a of the top plate 10. The stator 37 has been improved to a structure for fixing to the opening edge 37b. The other structure of the cooler 2b except for the support arm 37a is the same as the structure of the first embodiment of the cooler shown in FIGS.

FIG. 22 is a cross-sectional view of an eighth embodiment of the cooler of the cooling device according to the present invention. Cooler 2 shown in FIG.
radiation fins 13 standing on the radiation plate 13 of the air cooling unit 6c
h, 13h, 13h, 13h, 13h, 13h, 13h
.. Are radiating fins 1 provided on the radiating plate 13 of the air cooling unit 6 of the first embodiment of the cooler shown in FIG.
The cross-sectional shape of 3a is a nearly crescent-shaped fin

The crescent-shaped fins 13h, 13h,
13h, 13h, 13h... Are arranged radially outside the fan 11 from the rotation shaft 11c. Feather 11
The shape of “a” is substantially square.

With such a crescent-shaped fin configuration, the noise generated when air passes through the radiating fins 13h can be reduced, and the radiating fins 13h can efficiently radiate heat. The other structure and configuration of the cooler 2c including the heat radiating plate 13 except for the heat radiating fins 13h are the same as the structure of the first embodiment of the horizontal blowout type cooler shown in FIGS.

FIG. 23 is a plan view of a ninth embodiment of the cooler of the cooling device according to the present invention. Cooler 19 shown in FIG.
The thin support arm 22c provided on the stator 22b of the air-cooling unit 20a of FIG. 12A is provided on the air-cooling unit 20 of the second embodiment of the cooler shown in FIG.
Are formed at the rear end of the support arm 22c in the rotation direction of the fan 24, and the extension 22g is inclined downward. With such a structure, generated sound can be reduced.

In the present embodiment, the stator 22b
The support arm 22c is provided radially from b, and the support arm 22c of the stator 22b is attached to the opening edge of the opening 22a formed in the top plate 22. The other structure of the cooler 19a except for the support arm 22c is the same as the structure of the second embodiment of the axial-flow type cooler shown in FIGS.
Reference numeral 22f indicates a screw.

FIG. 24 is a perspective view of a cooler of a cooling device according to a tenth embodiment of the present invention. As shown in FIG.
The cooler 19b of this example is of an axial flow type, and a plurality of large and small air flow paths 28b, 28b, 2
8b, 28b, 28b, 28b, 28b, 28b and a plurality of radiation fins 28c, 28c, 28c, 28c, 28
c, 28c, 28c, 28c are provided radially from the center of the bottom plate 28. The radiation fins 28c, 28
c, 28c, 28c, 28c, 28c have extensions 28
e, 28e, 28e, 28e, 28e, 28e are formed, and the cross-sectional shape of the radiation fin 28c is substantially trapezoidal.

By improving to such a configuration, the wind noise of the air generated when passing through the radiation fins 28c can be suppressed, and the radiation efficiency can be improved. The other structure of the cooler 19b except for the radiation fin 28c is the same as that of the second embodiment of the axial-flow type cooler shown in FIGS.

FIGS. 25, 27, 29, 30, and 3
Reference numeral 2 denotes a horizontal blowout type cooler. 26 and FIG.
8, FIG. 31 and FIG. 33 show an axial flow type cooler.
26, 28, 31 and 33, the coolers 19c, 1
In 9d, 19e, and 19f, the air flow path is also formed in the heat sink and the bottom plate. FIGS. 25 and 26 show embodiments of the coolers 2d and 19c in which the suction nozzle 14 and the discharge nozzle 18 are both mounted in the same direction. FIGS. 27 to 28 show the suction nozzle 14 and the discharge nozzle 18 in opposite directions. An example of the coolers 2e and 19d provided in FIG. 25 to 33
Coolers 2d, 2e, 19d, 2f, 19
e, 2g, and 19f are different in the configuration of the water cooling unit.

FIG. 25 is a perspective view showing an eleventh embodiment of the cooler constituting the cooling device according to the present invention. The cooler 2d of the present example is a horizontal blowout type cooler. As shown in FIG. 25, in the cooler 2d of the present example, the suction nozzle 14 and the discharge nozzle 18 are mounted at the same direction, and the suction nozzle 14 inserted into the insertion hole 39a is
9b communicates. The suction channel 39b is provided with a receiving channel 39.
c, communicating with the delivery channel 39d and the discharge channel 39e. In the cooler 2d of the present example, the sending flow path 39d is connected to the receiving flow path 39c.
It is formed much larger and has a diameter approximately three times as large as the diameter of the receiving channel 39c.

With such a configuration, the cooling efficiency can be increased. The other structure of the cooler 2d of the present example is the same as that of the first embodiment of the cooler shown in FIGS.

FIG. 26 is a perspective view showing a twelfth embodiment of the cooler constituting the cooling device according to the present invention. The cooler 19c of this example is an axial-flow type cooler. In the cooler 19c shown in FIG. 26, the suction nozzle 14 and the discharge nozzle 18 are attached at positions in the same direction.
Is connected to a suction channel 39b. The suction channel 39b
Are the receiving channel 39c, the sending channel 39d, and the discharging channel 39d.
e. In the cooler 19c of this example, the bottom plate 38
A plurality of air passages 38a, 38a, 38a, 38a, 38
a, 38a, 38a, 38a and radiation fins 38b, 38
b, 38b, 38b, 38b, 38b, 38b, 38b
Are provided alternately. The shape of the air flow path 38a is formed in a trapezoidal shape. The air flow path 38a and the radiation fins 38b are provided radially from the center of the bottom plate 38.

That is, as shown in FIG.
b and the discharge channel 39e are connected to the suction nozzle 14 and the discharge nozzle 18 through the radiation fins 38b, 38b. As described above, the size can be reduced by attaching the suction nozzle 14 and the discharge nozzle 18 at the same position in the same direction.

FIG. 27 is a perspective view showing a thirteenth embodiment of the cooler of the cooling device according to the present invention. The cooler 2e shown in FIG. 27 is a horizontal blowout type cooler. In the cooler 2e of this example, the suction nozzle 14 and the discharge nozzle 18 are mounted at opposite positions.

Suction flow path 40b communicating with suction nozzle 14
The discharge flow path 40e communicating with the discharge nozzle 18 is a substantially S-shaped bent flow path. The suction channel 40b communicates with the receiving channel 40c, and the discharge channel 40e communicates with the sending channel 40g.

As described above, the suction flow path 40b and the discharge flow path 40e are bent in a substantially S-shape and made longer, so that the heat radiation efficiency can be increased and the cooling can be performed. The other structure of the cooler 2e is the same as that of the cooler of the first embodiment shown in FIGS.

FIG. 28 is a perspective view showing a fourteenth embodiment of the cooler of the cooling device according to the present invention. A cooler 19d shown in FIG. 28 is an axial flow type cooler. Cooler 1 of this example
9d, a plurality of substantially trapezoidal air flow paths 41a, 41a, 41a, 41a, 41 radially from the center of the bottom plate 41.
a, 41a and a plurality of radiation fins 41b, 41b, 41
b, 41b, 41b, 41b are provided alternately.

The suction flow path 42b communicating with the suction nozzle 14 and the discharge flow path 42e communicating with the discharge nozzle 18 are provided.
Are each in the form of irregularities in each of the air passages 41a, 41a, 41a,
41a, 41a, and 41b, are bent and disposed so as to surround the radiation fins 41b, 41b,
41b, 41b, 41b, and 41b are provided through the inside. The suction channel 42b is a receiving channel 42c of the circulating unit 42.
And the discharge channel 42e communicates with the delivery channel 42d.

With such a structure, the efficiency of heat radiation can be increased, so that the cooling rate can be increased. The other structure of the cooler 19d of this embodiment is the same as that of the second embodiment shown in FIGS.

FIG. 29 is a perspective view showing a fifteenth embodiment of the cooler of the cooling device according to the present invention. FIG.
9 is a vertical sectional view of FIG. The coolers shown in FIGS. 29 and 30 are horizontal blow-out type coolers. Cooler 2f of this example
In the embodiment, the suction nozzle 14 and the discharge nozzle 18 are mounted at positions in the same direction. As shown in FIG. 29, in the cooler 2f of the present example, the suction flow path 43e communicating with the suction nozzle 14 inserted into the insertion hole 43d has the receiving flow path 43
f, the receiving flow path 43f is formed in a U-shaped delivery flow path 4
3g and the U-shaped delivery channel 43g.
Communicates with a discharge channel 43h communicating with the discharge nozzle 18 inserted into the insertion hole 43i. Reference numeral 43j indicates a screw hole.

As shown in FIG. 30, the structure of the air cooling section 6d of the cooler 2f of this embodiment is the same as that of the cooler 2 shown in FIG. The difference from the cooler 2 shown in FIG. 11 is the structure of the water cooling section 7c. That is, as described above, the suction nozzle 14 and the discharge nozzle 18 are mounted at the same position in the same direction, and the U-shaped delivery flow path 43
g is communicating.

As shown in FIGS. 29 and 30, as the structure of the water-cooling section 7 of the cooler 2f according to the present embodiment, by making the delivery channel 43g formed in a U-shape longer, the stored coolant can be cooled. , Suction channel 43e, delivery channel 43g, discharge channel 43
Heat flows efficiently in the order of h.

As described above, the cooling can be efficiently performed by the cooling liquid and the air. Other structures of the cooler 2f of the present embodiment are the same as those of the cooler of the first embodiment shown in FIGS.

FIG. 31 is a perspective view showing a sixteenth embodiment of the cooler of the cooling device according to the present invention. A cooler 19e shown in FIG. 31 is an axial-type cooler. Cooler 19 of this example
In e, the suction nozzle 14 and the discharge nozzle 18 are attached at positions in the same direction.

In the cooler 19e of this embodiment, heat radiation fins 44b are provided in a cross shape above and below a circulating portion 45 at the center of an air flow path 44a formed in the bottom plate 44, and the heat radiation fins 44b Are formed at four places so as to surround the intersection of the air passages 44a, 44a, 44a, 44a. The air flow path 4 is also provided on the left and right sides of the circulating section 45.
4a, 44a, 44a, 44a. Reference numeral 44c indicates a screw hole.

As shown in FIG. 31, each flow path formed in the water cooling section 21d of the cooler 19e of this embodiment is provided with an insertion hole 45.
The suction flow path 45b communicating with the suction nozzle 14 inserted into the receiving flow path 45c communicates with the receiving flow path 45c.
C, a U-shaped delivery channel 45d is provided, and the U-shaped delivery channel 45d communicates with a discharge channel 45e, and the discharge channel 45e is inserted into the insertion hole 45f. It communicates with the nozzle 18.

With such a structure, the heat in the coolant can be more efficiently radiated and cooled by the air passing through the air flow path. Cooler 19 of this example
The other structure of e is the same as the structure of the second embodiment shown in FIGS.

FIG. 32 is a perspective view showing a seventeenth embodiment of the cooler of the cooling device according to the present invention. The cooler shown in FIG. 32 is a cooler of a horizontal blowing type.

In the cooler 2g of this embodiment, the suction flow path 43l provided in the water cooling section 7d is formed in a substantially S-shape and communicates with the receiving flow path 43f of the circulation section 29.
A U-shaped delivery channel 43m communicates with f, and a substantially S-shaped ejection channel 43n communicates with the delivery channel 43m. The suction channel 431 communicates with the suction nozzle 14 inserted in the insertion hole 43d, and the discharge channel 43n is connected to the insertion hole 43i.
Communicates with the discharge nozzle 18 inserted therein.

With such a structure, the heat storage in the cooling liquid causes the substantially S-shaped suction flow path 43l, the U-shaped delivery flow path 43m, and the substantially S-shaped discharge flow path 43n to flow through the circulation portion. Heat is efficiently dissipated while flowing. The other structure of the cooler 2g of this embodiment is the same as that of the first embodiment shown in FIGS.

FIG. 33 is a perspective view showing an eighteenth embodiment of the cooler of the cooling device according to the present invention. The cooler of the cooling device of FIG. 33 is an axial-flow cooler.

As shown in FIG. 33, a substantially U-shaped suction flow path 45b communicates with the suction nozzle 14 inserted into the insertion hole 45a, and the suction flow path 45b The receiving and transmitting channel 45 communicates with the receiving channel 45c.
A U-shaped delivery channel 45d communicates with c. Then, a U-shaped discharge channel 45e is connected to the delivery channel 45d. As described above, by making each flow path longer, the cooling liquid storing heat is efficiently cooled while flowing through the long flow path.

The plurality of air flow passages 44a formed in the bottom plate 44 are provided with radiating fins 44b in a cross shape above and below the center of the bottom plate 44, and are formed at intersections of the cross-shaped radiating fins 44b. Air passages 44a, 44a, 44a, 44a, 44a, 44
a, 44a, 44a are formed. In addition, the circulation unit 4
5 also have rectangular air flow paths 44a, 44 on the left and right sides.
a, 44a and 44a. With such a structure, the heat in the coolant can be more directly radiated by the air passing through the air flow path 44a, and the cooling can be performed extremely efficiently. The other structure of the cooler of this example is the same as that of the second embodiment shown in FIGS.

[0120]

Since the present invention has the above-described configuration, the following effects can be obtained. First, since the impeller for the coolant is driven by using the rotation of the magnet attached to the air-cooling fan side of the air-cooling unit, it is not necessary to provide a dedicated drive circuit for rotating the impeller. Space saving and power saving can be achieved.

Second, if the exhaust gas from the cooler is directly discharged out of the case of the electronic device, the radiated hot air does not fill the case of the electronic device, and the components of the other electronic devices in the case can be used. It does not heat up and upset the operation.

Third, by separating the heat-generating component from the cooler having the fan for air cooling, the electromagnetic noise generated by the cooler does not affect the heat-generating component, but does not affect the electromagnetic noise. It is possible to attach a cooler to a heat-producing component that is easily affected by the heat.

Fourth, since it is not necessary to increase the number or volume as in a heat pipe or a heat transfer plate and circulate a coolant having a high heat capacity, the cooling power may be insufficient or reduced. Absent. In addition, the coolant tube is thin and easy to handle, and the usable angle when the case body is inclined like a heat pipe is not greatly limited.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a cooling device according to the present invention.

FIG. 2 is an exemplary view showing a state in which a cooling device according to the present invention is attached to an electronic device.

FIG. 3 is an overall enlarged perspective view of a first embodiment of the cooler of the cooling device according to the present invention.

FIG. 4 is a plan view of a first embodiment of the cooler of the cooling device according to the present invention.

FIG. 5 is a bottom view of the first embodiment of the cooler of the cooling device according to the present invention.

FIG. 6 is a front view of a first embodiment of the cooler of the cooling device according to the present invention.

FIG. 7 is a cross-sectional view taken along the line BB ′ shown in FIG.

FIG. 8 is a transverse sectional view taken along line CC ′ shown in FIG. 6;

FIG. 9 is an exploded view of an air cooling unit of the first embodiment of the cooler of the cooling device according to the present invention.

FIG. 10 is an exploded view of the water cooling unit of the first embodiment of the cooler of the cooling device according to the present invention.

FIG. 11 is a longitudinal sectional view taken along line AA ′ shown in FIGS. 3, 4, and 5;

FIG. 12 is a plan view of a cooler of a cooling device according to a second embodiment of the present invention.

FIG. 13 is a perspective view of a cooler of a cooling device according to a second embodiment of the present invention.

FIG. 14 is a front view of a cooler of a cooling device according to a second embodiment of the present invention.

FIG. 15 is a longitudinal sectional view taken along line AA ′ shown in FIGS. 12 and 13;

16 is a longitudinal sectional view of a main part of the cooler shown in FIG.

FIG. 17 is a longitudinal sectional view of a main part of a cooler of a cooling device according to a third embodiment of the present invention.

FIG. 18 is a longitudinal sectional view of a main part of a cooler of a cooling device according to a fourth embodiment of the present invention.

FIG. 19 is a longitudinal sectional view of a main part of a fifth embodiment of the cooler of the cooling device according to the present invention.

FIG. 20 is a cross-sectional view of a cooler of a cooling device according to a sixth embodiment of the present invention.

FIG. 21 is a plan view of a cooler of a cooling device according to a seventh embodiment of the present invention.

FIG. 22 is a cross-sectional view of an eighth embodiment of the cooler of the cooling device according to the present invention.

FIG. 23 is a plan view of a ninth embodiment of the cooler of the cooling device according to the present invention.

FIG. 24 is a perspective view of a cooler of a cooling device according to a tenth embodiment of the present invention.

FIG. 25 is a perspective view of an eleventh embodiment of the cooler of the cooling device according to the present invention.

FIG. 26 is a perspective view of a twelfth embodiment of the cooler of the cooling device according to the present invention.

FIG. 27 is a perspective view of a thirteenth embodiment of the cooler of the cooling device according to the present invention.

FIG. 28 is a perspective view of a cooler of a cooling device according to a fourteenth embodiment of the present invention.

FIG. 29 is a perspective view of a cooler of a cooling device according to a fifteenth embodiment of the present invention.

FIG. 30 is a longitudinal sectional view of a cooler of a cooling device according to a fifteenth embodiment of the present invention.

FIG. 31 is a perspective view of a cooler of a cooling device according to a sixteenth embodiment of the present invention.

FIG. 32 is a perspective view of a seventeenth embodiment of the cooler of the cooling device according to the present invention.

FIG. 33 is a perspective view of an eighteenth embodiment of the cooler of the cooling device according to the present invention.

FIG. 34 is a schematic view of a conventional cooling device.

FIG. 35 is a perspective view of a conventional cooling device.

FIG. 36 is a perspective view of a conventional cooling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooling device 1a Case 2-2g Cooler 3 Heat absorption part 4 Suction pipe 5 Heating element (CPU etc.) 6-6d Air cooling part 7-7d Water cooling part 8 Stator 8a Support arm 8b Printed circuit board 8c Rotating member 8d Lead wire 9 Coil 10 Top plate 10a Opening 10b Screw 11 Fan 11a Blade 11b Magnet 11c Rotating shaft 12 Partition plate 13 Heat radiating plate 13a, 13h Heat radiating fin 13b Column 13c Fitting groove 13d Rotating frame 13e Delivery channel 13f Insert hole 13g Screw hole 13i, 13j Delivery channel 13k Induction channel 14 Suction nozzle 15 Magnetic body 16 Impeller 16a Blade 16b Rotary shaft 17, 17e Bottom plate 17a, 17f Receiving channel 17b, 17g DC channel 17c Insertion hole 17d Screw hole 18 Discharge nozzle 19- 19f Cooler 20, 20a Air cooling unit 21-21e Water cooling unit 22 heaven 22a Opening 22b Stator 22c, 22g Support Arm 22d Printed Circuit Board 22e Rotating Member 22f Screw 23 Coil 24 Fan 24a Blade 24b Magnet 24c Rotating Axis 25 Partition Plate 26 Magnetic Material 27 Fan 27a Blade 27b Rotating Axis 28 Bottom 28a Groove 28b Air flow path 28c, 28e Radiation fin 28d Screw hole 29 Circulating portion 29a Insertion hole 29b DC path 29c Receiving path 29d Delivery path 29e DC path 29f Insertion hole 30 Coil 31 Fan 31a Blade 31b Magnet 31c Rotating shaft 32 Partition plate 33 Magnetic body 34 Fan 34a Blade 34b Rotating shaft 35 Magnet 36 Fan 36a Centrifugal blade 36b Magnet 36c Rotating shaft 37 Stator 37a Support arm 37b Outer ring 38 Bottom plate 38a Air flow path 38b Radiating fin 38c Screw hole 39 Ring 39a Insertion hole 39b Suction flow path 39c Receiving flow path 39d Delivery flow path 39e Discharge flow path 39f Insertion hole 40 Bottom plate 40a Insertion hole 40b Suction flow path 40c Receiving flow path 40d Screw hole 40e Discharge flow path 40f Insertion Hole 40g Sending channel 41 Heat radiating plate 41a Air channel 41b Heat fin 41c Screw hole 42 Circulating portion 42a Insert hole 42b Suction channel 42c Receiving channel 42d Send channel 42e Discharging channel 42f Insert hole 43 Bottom plate 43a Heat fin 43b Fitting groove 43c Rotating frame 43d, 43i Insert hole 43e Suction flow path 43f Receiving flow path 43g Delivery flow path 43j Screw hole 43k Bottom plate 44 Bottom plate 44a Air flow path 44b Radiation fin 44c Screw hole 45 Circulation part 45a, 45f Insert Hole 45b Suction flow channel 45c Receiving flow channel 45d Delivery flow channel 45e Discharge flow channel 46 Cooler 46a Top plate 46b Radiating fin 46c Fan 47 Cooler 47a Air flow path 48 Heat pipe 48a Heat transfer plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Satoshi Nakamura 1-13-6 Minakugahara, Ota-ku, Tokyo F-term in Nippon Keiki Seisakusho Co., Ltd. 5F036 AA01 BA05 BB35 BB41

Claims (2)

[Claims] In a cooling device for cooling a heating element of an electronic device, an impeller provided with a magnetic body with a partition plate interposed therebetween is provided at a position opposite to a fan provided with a magnet. By connecting a heat absorbing portion that absorbs heat generated from a heating element to a cooling device in which a circulating impeller rotates by a suction pipe and a discharge pipe, a cooling liquid is circulated between the cooling device and the heat absorbing portion to cool. A cooling device characterized by the above-mentioned. 2. The cooling device according to claim 1, wherein the magnetic material is an electric conductor.