WO2005015112A1

WO2005015112A1 - Heat radiating member, device using the heat radiating member, casing, computer support stand, and radiating member manufacturing method

Info

Publication number: WO2005015112A1
Application number: PCT/JP2004/011557
Authority: WO
Inventors: Kenji Tsuji
Original assignee: Kenji Tsuji
Priority date: 2003-08-11
Filing date: 2004-08-11
Publication date: 2005-02-17
Also published as: JP4404855B2; JPWO2005015112A1; CN1836147A; WO2005015111A1; AU2003254937A1; CN100476341C; US20060201659A1

Abstract

A heat radiating member (1) shown in Fig. 1, comprising a tourmaline layer formed thereon by coating the surface of a base material formed of a metal with excellent heat conductivity such as copper and aluminum with a coating agent formed by mixing a schorltourmaline powder of generally 3 to 7 μm in grain size with a fluid fixing agent that the schorltourmaline powder can have a density of 0.025 to 0.05 g/cm2 and hardening the coating agent. Thus, the heat radiating member expected to provide more heat radiating effect than that of a heat radiating member formed by applying black painting to a base material, a device using the heat radiating member, or a part itself using the device can be provided.

Description

Specification

Heat dissipating member, device using the heat dissipating member, housing, computer support, and method of manufacturing heat dissipating member

Technical field

The present invention relates to a heat dissipating member having excellent heat dissipating properties, and a device and a housing using the heat dissipating member.

, A computer support, and a method for manufacturing a heat radiating member.

Background art

[0002] Conventionally, devices that generate heat, such as internal combustion engines, heat exchangers such as refrigerators, and electronic devices such as CPUs of computers, are radiating units that radiate heat, such as radiating fins and internal combustion engines. The muffler, various electric motors, heat sinks, etc. are painted black to improve the heat dissipation effect.

[0003] However, further improvement of the heat radiation effect cannot be expected only by applying the black paint, and thus various devices that generate heat as described above are devised with a structure of the heat radiation part ( For example, a structure that promotes thermal convection is added to improve the heat dissipation effect.

[0004] As an example, for example, a circuit structure including a plurality of bus bars constituting a power circuit is provided with a heat radiating member having a bus bar adhesion surface coated with an insulating layer, and the plurality of bus bars are disposed on the bus bar adhesion surface. Each bus bar is directly bonded to the bus bar bonding surface in a state where the bus bars are arranged, so that the bus bar is efficiently cooled with a simple structure (see, for example, JP-A-2003-164040).

[0005] Further, as another example, an electrical connection that supports a current distribution circuit board and a printed circuit board with a gap therebetween, eliminates an insulating plate interposed therebetween, and improves heat dissipation due to the presence of the gap. Boxes and the like (for example, see JP-A-2003-87938).

[0006] As described above, an example in which the structure is provided with a characteristic in order to improve the heat radiation effect has been exemplified. However, in order to further improve the heat radiation effect, it is necessary to review the members themselves.

[0007] It is extremely difficult to improve the thermal conductivity, which is a physical property, by improving the material itself while applying force.

[0008] Therefore, as described above, a black paint that has the effect of radiating heat and absorbing heat is applied to a black paint having a high thermal conductivity. The present invention uses a heat dissipating member that can be expected to have a further heat dissipating effect and a heat dissipating member that can be expected to have a greater heat radiation effect than a heat dissipating member that has been coated on a substrate with black paint. It is an object of the present invention to provide an apparatus, a housing, a computer support, and a method of manufacturing a heat radiating member.

Patent Document 1: JP 2003-164040 A

Patent Document 2: Japanese Patent Application Laid-Open No. 2003-87938

Disclosure of the invention

[0010] In order to solve the above problems, the present inventor applied various samples to the base material and conducted an experiment in a state of heat release, and found that tourmaline had a very remarkable effect (discovered a specific attribute). After discovering that there is S, and as a result of diligent research, it has been found that there are several types of tourmalines that exist in nature, such as dravite tourmaline, shawl tourmaline, mixed tonomaline, and lithia tourmaline. We also found that the tourmaline, which has an excellent heat dissipation effect, also has a particle size and a density per unit area (application amount) that have an outstanding heat dissipation effect. In this way, the present inventor focused on a specific tonoremarin, and came to invent a heat-dissipating member or the like that solves the above-mentioned problem by using the tourmaline powder (by exclusively using the properties and attributes).

[0011] That is, the heat dissipating member according to claim 1 is characterized in that a coating agent obtained by mixing a shawl tourmaline powder having a particle size of approximately 3 to 7 μm with a fluid fixing agent is coated with copper, aluminum, or the like. On the surface of a substrate made of a metal having excellent thermal conductivity, a tonoremarin layer formed by applying and solidifying the shawl tourmaline powder so as to have a density of 0.025 to 0.05 g per square cm. It is characterized by having.

[0012] The heat dissipating member according to claim 2 is characterized in that shawl tourmaline powder having a particle size of approximately 31 μm is mixed into a base material made of aluminum.

[0013] The heat dissipating member according to claim 3 is characterized in that shawl tourmaline powder having a particle size of approximately 37 / im is mixed in a base material made of plastic.

[0014] The apparatus according to claim 4 is characterized in that a heat generating unit and / or a heat radiating unit that dissipates heat in a device such as a heat exchanger or various devices are provided with a heat radiating unit. It is characterized by using the heat radiating member of the item. [0015] The device according to claim 5 is the device according to claim 4, wherein the device configured using the heat radiating member is a cooling device, and the heat radiating member is a cooling device of the cooling device. It is characterized by being used in heat exchanger systems.

[0016] The case described in claim 6 is a case in which a case constituting an electric device such as a computer or a hard disk is formed using the heat radiating member according to any one of claims 1 to 3. It is characterized.

[0017] A computer support according to claim 7 is a computer support on which a notebook computer is placed, and wherein the heat-radiating member according to any one of claims 1 to 3 has a side surface. It is characterized by being formed in a substantially L-shape when viewed.

[0018] The method for manufacturing a heat radiating member according to claim 8, further comprising: a coating agent generating step of mixing a short-tourmaline powder having a particle size of approximately 3 to 7 μm with a fixing agent to generate a coating agent; The above-mentioned coating agent is applied to the surface of a substrate made of a metal having excellent thermal conductivity such as aluminum or aluminum so that the shawl tourmaline powder has a density of 0.25 to 0.05 grams per square cm. And a coating step.

[0019] The method for manufacturing a heat radiating member according to claim 9 is characterized in that aluminum in a molten state and a Shounore tourmaline powder are mixed and solidified into a desired shape.

[0020] The method for manufacturing a heat radiating member according to claim 10 is characterized in that a fluid plastic material and shoal tourmaline powder are mixed and solidified into a desired shape. BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings.

[0022] In the figure, reference numeral 1 denotes a heat radiation member, reference numeral 11 denotes a base material, and reference numeral 12 denotes a tourmaline layer.

(Embodiment 1)

The heat dissipating member 1 according to the present embodiment is a thin copper plate having a high thermal conductivity as shown in FIG.

(Substrate thickness: 0.8 mm) and a tourmaline layer 12 coated on the upper surface of the substrate 11 and mainly composed of shawl tourmaline powder.

[0024] The tourmaline layer 12 is obtained by mixing a shawl tourmaline powder having a particle size of approximately 6 µm and a fixing agent composed of an acrylic volatile synthetic resin paint in a weight ratio of 1: 1 (coating agent). Generation process) to produce a coating agent, and the coating agent is applied to a 1 cm 2 square shawl tourmaline powder. It is formed by multi-coating (coating process) on the base material 11 so as to have a density of 0.025-0.

[0025] Preliminary tests on heat radiation were conducted using typical tourmalines such as dravite tourmaline, shawl tourmaline, mixed tourmaline, and lithia tourmaline, and black shawl tourmaline having the best heat radiation effect was employed.

[0026] It is well known that tourmaline generates ions or generates electricity in the first place, but from the law of energy invariance, some input energy is required to output tourmaline force ions and electricity. In view of the effects of the present invention, it is considered that thermal energy is converted to ions or electricity.

[0027] Therefore, it is presumed that shawl tourmaline, in which the voltage between the electrodes is high, has the highest heat radiation effect.

[0028] The weight ratio between the fixing agent and the shoal tourmaline powder of 1: 1 is a good balance to keep the shawl tourmaline powder in a tight state when the fixing agent is dried and solidified. From experiments, it has been confirmed from experiments that if the amount of the fixing agent is smaller than the shawl tourmaline powder, the base material tends to peel off, and if the amount of the fixing agent is larger than the shawl tourmaline powder, multiple coatings are performed until the desired density of the shoal tourmaline is obtained. Poor workability. By the way, 20 g of acrylic volatile synthetic resin paint in liquid state becomes 4 g when dried.

[0029] Further, the tonoremarin layer 12 was further subjected to a particle size selection experiment, a coating amount selection experiment, and a fixing agent selection experiment with respect to the above-mentioned shawl tourmaline, which had the most heat radiation effect, and based on the experimental results, It is based on good data. The details of each selection experiment will be described later.

The liquid into which the shawl tourmaline powder is mixed is not limited to the acrylic volatile synthetic resin paint described above, but may be a known heat-resistant paint such as a water-based emulsion paint or a two-part mixed epoxy paint. Yes, that is, any liquid can be used as long as it is solidified and cannot be easily peeled off from the base material 11 (the coated state is maintained for a long period of time).

[0031] In addition, a circumstance tourmaline powder having a particle size of about 3 to 7 µm may be mixed with a molten aluminum or plastic base material and solidified into a desired shape. [0032] It should be noted that tourmaline (which is limited to shawl tourmaline) is destroyed by applying heat of 900 ° C or more, and thus has an excellent thermal conductivity and an aluminum power having a melting point of 660 ° C as described above. This is the most suitable member when the shawl tourmaline powder is contained in the base material itself.

[0033] When the plastic substrate itself contains shoal tourmaline powder, the pellets and shoal tourmaline powder are mixed at a weight ratio of approximately 10%, and conventional molding means such as general injection molding is used. A heat-radiating member having a desired shape can be manufactured by using it as it is.

Next, a heat radiation experiment using the heat radiating member 1 according to the present embodiment configured as described above will be described.

[0035] In the experiment, as a comparison object, a 0.8 mm copper plate substrate 11 having a black coating only on the upper surface of the substrate 11 (hereinafter, comparative sample A) and a substrate 11 as it is ( Hereinafter, the comparative example B) was used to compare the heat dissipation state with the heat dissipation member according to the present embodiment.

[0036] As shown in Fig. 2, the outline of the experiment was as follows. One end of the surface opposite to the tourmaline layer 12 and the black painted surface (comparative sample B only, no orientation of the temperature sensor attachment surface) Attach C and select one of the heat dissipating member 1 and either the comparative sample A or the comparative sample B and place them on the household electric heater (hot plate) D at the same time. At this time, the heat dissipating member 1 or the like is placed so that the tourmaline layer 12 and the black paint face upward, and the temperature sensor C is kept away from the electric heater so as not to be affected by the heat of the household electric heater D itself. Comparative sample A and comparative sample B are placed on household heater D.

[0037] Then, by energizing the household electric heater D, those placed on the household electric heater D are raised to an appropriate temperature, and the household electric heater D at that time is increased. By measuring the temperature rise at a distance, the state of heat radiation from the upper surface can be grasped. That is, since the material, mounting conditions, and heating conditions of the base material 11 are uniform, the heat radiation effect of each member can be grasped without the black painted layer, tourmaline layer 12, and formed layer formed on the surface of the base material 11. .

[0038] Under such conditions, first, the experimental results of heat radiation between the heat radiating member 1 and the comparative sample A and the comparative sample B will be described.

First, when the temperature of the heat radiating member 1 and that of the comparative sample B were measured under the same conditions, the heat of the heat radiating member 1 was S43.5 ° C, whereas the temperature of the comparative sample B was 51.7 ° C. Met. The temperature difference is 8.2 ° C, it was confirmed that the heat dissipating member 1 had a heat dissipating effect.

Next, when the temperature of the heat radiating member 1 and that of the comparative sample A were measured under the same conditions, the power of the heat radiating member 1 was ¾4.5 ° C., whereas that of the comparative sample A was 57.8 °. C. The temperature difference was 3.3 ° C, and it was confirmed that the heat dissipating member 1 had a better heat dissipating effect.

From the above, it was confirmed that the heat dissipating member 1 working in the present embodiment has a more effective heat dissipating effect than the comparative sample A and the comparative sample B. Further, since the heat dissipating member 1 that is powerful in the present embodiment is formed in a thin plate shape, it can be easily cut and bent, and can be processed so as to be suitable for various heat dissipating parts.

Next, according to the present embodiment described above, a selection experiment by particle size, an application amount selection experiment, and a fixing agent selection were carried out in order to select a tonnoremarin layer using shawl tourmaline as a heat dissipation member. The experiment will be described in detail.

1. Experiment of selection by particle size

The effect of heat radiation by particle size of shawl tourmaline will be explained.

[0044] The heat-dissipating member M2, which is a test piece, is made of a shoal tourmaline powder having a particle size of 1.2 μm, 3 / im, 325 mesh, and 6 μΐη, and an acrylic volatile synthetic resin. It is mixed with a fixative consisting of a paint at a weight ratio of 1: 1 (30g: 30g) to produce four sample coatings, and their size (height x width x thickness) 300 x 200 x 0 Prepare a heat-dissipating member M4 for four samples by applying (shaving one surface) each surface of an 8mm copper plate so that the density of each shawl tourmaline is 0.05 gram per square cm. I do.

Then, as shown in FIGS. 8 and 9, a copper plate Ml having a size (length × width × thickness) of 200 × 300 × 0.8 mm was placed on a thermostat-equipped electric heater. The heat radiating member M2 for the sample is placed on the copper plate Ml such that the lower portions thereof are aligned and the tourmaline layer is on the upper side.

The temperature measuring device S2 is connected to a position shifted 10 mm inward from the center of the right end of the copper plate Ml and a position shifted 10 mm inward from the center of the upper portion of the heat radiating member M2 (tourmaline layer side). Attach the temperature sensor S1.

[0047] Then, the temperature of the electric heater D1 was set to 50 ° C, and after approximately 1 hour as the preheating time, the temperature of the copper plate Ml and the temperature of the heat-dissipating member M2, which is the specimen, were measured every 15 seconds. (Note that Four electric heaters were prepared, and the four copper plates and the heat dissipating member for the test were measured simultaneously.)

[0048] The following table shows the experimental results obtained under the above conditions. The lowermost column on the right side of each table shows the average temperature of the test heat radiating member, the average temperature of the copper plate, and the average temperature difference calculated by subtracting the average temperature of the test heat radiating member from the average temperature of the copper plate.

[Table 1]

[0050] [Table 2]

[Table 3]

[Table 4]

Based on the above, the heat dissipating member for test with a particle size of shawl tourmaline of 6 μm has an average temperature difference of 5.24 ° C for 10 minutes, which is the highest, followed by 3 m for 4.48 ° C. 4.39 for 325 mesh. C, 1.2 xm 2.95. The experimental results of C were obtained. This means that a significant heat radiation effect can be obtained from around 3 μm with a peak of 6 μm at the particle size of the shawl tormarin. When the particle size becomes larger than 6 μm (325 mesh), A decrease in the heat dissipation effect was observed. Therefore, taking into account the feeling of unity with the base material (coating force) and the need to minimize the surface roughness (fine irregularities are formed by short-form marine when the liquid fixing agent dries), Shawl tourmaline with a diameter of approximately 3-7 μΐη is preferred. In particular, a shawl tormarine having a particle size of approximately 6 μΐη, which has the highest heat radiation effect and provides a surface roughness that is practically satisfactory, is extremely suitable. [0054] 2. Application amount selection experiment

Next, the heat radiation effect according to the amount of shawl tourmaline applied will be described.

[0055] The heat-dissipating member used as the specimen was shoal tourmaline powder having a particle size of 6 µm, and a weight ratio of 1: 1 (9 g: 9g, 15g: 15g, 30g: 30g, 60g: 60g) to make 4 sample coatings, and to make the size (length x width x thickness) 300 x 200 x 0.8mm copper plate On one surface (only one side), prepare a heat-dissipating member for all four samples with different densities. That is, the densities per square cm are 0.015 g, 0.025 g, 0.05 g, and 0.1 lg.

[0056] Then, as in the particle size selection experiment, a copper plate having a size of 200 mm x 300 mm x 0.8 mm (length x width x thickness) was placed on a thermostat-equipped electric heater. Place the heat radiating members for the sample on top of each other, with the tourmaline layer facing upward.

[0057] Then, a temperature sensor connected to the temperature measuring device is provided at a position shifted 10 mm inward from the center of the right end of the copper plate and a position shifted 10 mm inward from the center of the upper part of the heat dissipating member (tourmaline layer side). Attach (see Figures 8 and 9).

[0058] Then, the temperature of the electric heater was set to 50 ° C, and after about 1 hour as the preheating time, the temperatures of the copper plate and the heat dissipating member for the test were measured every 15 seconds (note that the electric heater was not used). Four copper plates and the heat dissipating member for test are measured simultaneously.)

The following table shows the experimental results obtained under the above conditions. The lowermost column on the right side of each table shows the average temperature of the test heat radiating member, the average temperature of the copper plate, and the average temperature difference calculated by subtracting the average temperature of the test heat radiating member from the average temperature of the copper plate.

[Table 5]

6]

[Table 7]

Table 8

[0064] From the above, the density of shawl tourmaline having the highest heat radiation effect was 0.05 g (temperature difference 4.39 ° C) per square cm, and then 0.025 g (temperature difference 3.3 ° C), 0.1 lg (temperature difference 3 · 20) and 0.015 g (temperature difference 3 · 18). With respect to the applied force S, it was confirmed that the density per 1 cm 2 of the Shounoretonoremarin, 0.05-0. 025 g force S was economical and had high heat dissipation.

[0065] 3. Experiment for selecting fixative

Next, the heat radiation effect of each fixing agent will be described. [0066] The heat-dissipating member used as the specimen was shoal tourmaline powder having a particle size of 6 µm of shoal tourmaline, and was composed of three types of acrylic synthetic resin paint, water-based emulsion paint, and two-part mixed epoxy paint. The mixture is mixed with the fixative at a weight ratio of 1: 1 (30g: 30g) to produce three sample coating materials, and the size (height x width x thickness) 300 x 200 x 0.8 mm On one surface of the copper plate, apply (short the entire surface) so that the density of short noremarin becomes 0.05 g per 1 cm 2, and prepare heat dissipation members for three samples.

[0067] Then, as in the particle size selection experiment, a copper plate having a size of 200 mm x 300 mm x 0.8 mm (length x width x thickness) was placed on a thermostat-equipped heater. Place the heat-dissipating members for the sample on top of each other so that the lower parts are aligned and the tourmaline layer is on the upper side (see Figs. 8 and 9).

[0068] Then, a temperature sensor connected to the temperature measurement device is located at a position shifted 10 mm inward from the center of the right end of the copper plate and a position shifted 10 mm inward from the center of the upper portion of the heat dissipating member (tourmaline layer side). Attach.

[0069] Then, the temperature of the electric heater was set to 50 ° C, and after about 1 hour as the preheating time, the temperatures of the copper plate and the heat dissipating member for test were measured every 15 seconds (note that the electric heater Three copper plates and the heat dissipating member for test are measured at the same time).

[0070] The following table shows the experimental results obtained under the above conditions. The lowermost column on the right side of each table shows the average temperature of the test heat radiating member, the average temperature of the copper plate, and the average temperature difference calculated by subtracting the average temperature of the test heat radiating member from the average temperature of the copper plate.

[Table 9]

[Table 10]

[Table 11]

[0074] From the above, it was confirmed that an acrylic volatile synthetic resin paint is suitable for a paint used as a fixing agent.

[0075] As described above, from the results of the selection experiment for each particle size, the application amount selection experiment, and the fixing agent selection experiment, it was confirmed that shaking tourmaline powder having a particle size of approximately 6 μm and an acrylic volatile synthetic resin paint were used. Is mixed with the agent at a weight ratio of 1: 1 to produce a coating agent (coating agent generation step). The coating agent has a density of 0.05 g of shawl tourmaline powder per square cm. Thus, it was confirmed that the tourmaline layer formed by coating the substrate was extremely suitable.

(Embodiment 2) Next, an example in which the heat radiating member 1 is applied to various specific devices will be described. In this case, the base member 11 formed of a desired shape (radiation fins, etc.) and material (aluminum, etc.) is not necessarily formed by the thin plate-shaped heat radiation member 1 exemplified in the first embodiment. The tourmaline layer 12 exemplified in 1 is formed, or the base material itself is mixed with shawl tourmaline powder.

First, an example in which the present invention is used for a heat exchanger system of a refrigerator will be described with reference to FIG.

As shown in FIG. 3, the heat exchanger system E of the refrigerator includes a compressor el, a refrigerant tank e2, a cooled room e3, a heat dissipation function unit e4, and a pipe member e5 connecting them. Each of these components is composed of a heat radiating member 1 in which a tormarin layer 12 is formed on a base material 11 formed in a required shape.

[0079] The refrigerator configured using the heat dissipating member 1 as described above has an improved heat dissipating effect, thereby improving the heat exchange rate, and is an extremely suitable refrigerator.

Next, an example in which the heat radiating member 1 is used at a required portion of the computer F will be described with reference to FIG.

[0081] In the interior of the normal computer F, the force applied by the plating and the metal material itself are exposed between the case (housing) fl, the chassis f2, and each device f3. However, in this state, the heat generated inside is repeatedly reflected between the respective members, and the structure is hard to escape the heat to the outside, that is, it is close to a so-called thermos state.

[0082] Therefore, the components (case f), chassis f2, each device f3 such as HDD and DVD, and CPUf4, etc., are composed of the heat dissipating member 1 having the tourmaline layer 12, so that the internal It can reduce the internal temperature of the computer F by preventing heat reflection and consuming internal heat.

[0083] Here, an experiment of heat radiation effect was performed using two external hard disks ([10 DATA device [HAD_iE160]) as test objects. One case was HDD normal (untreated), and the other case was coated with Tonoremarin. In forming this tourmaline layer, shawl tourmaline powder having a particle size of approximately 6 μm and a fixing agent made of an acrylic volatile synthetic resin paint are mixed at a weight ratio of 1: 1 (the coating agent is formed). Process) to produce a coating agent and adjust the density of the case so that it falls within 0.05-0.025 g of density per square cm of short-tourmaline. The temperature was measured every predetermined time by coating the entire surface. Table 12 shows the results of the following experiments.

[Table 12]

Temperature comparison of external HDD

According to this experiment, the average temperature of the case 60 minutes after the HDD normal was 41.540 ° C, and the measurement result of the HDD with the tourmaline layer was 40.060 ° C. Was confirmed. [0086] The computer F shown in Fig. 4 is a desktop personal computer. As shown in Fig. 5, the computer F is also applicable to a notebook personal computer G. The normal notebook computer case (housing) gl is made of metal or non-metallic material such as polycarbonate. Therefore, by configuring the case g1 by mixing shawl tourmaline powder, the internal heat is dissipated and consumed, and the internal temperature of the notebook computer G can be prevented from rising.

[0087] In the chassis and the main body housing of the usual various components, the force applied to the plating or the metal material itself is exposed. In such a state, the heat generated inside hardly escapes to the outside.

[0088] In order to solve this problem, the chassis and the like are formed of the heat radiating member 1, thereby promoting internal heat radiation and consuming internal heat, thereby preventing a rise in temperature inside the device.

For example, as shown in FIG. 6, the housing (housing) hi of the electric motor H may be constituted by the heat radiating member 1.

Further, the support base 3 on which the existing notebook personal computer N is placed may be constituted by the heat radiating member 1, and in this case, as shown in FIG. The support base 3 is formed by bending and forming a substantially L-shaped side view with a width sufficient for mounting and a height suitable for inclining at a required angle.

[0091] When the notebook PC N is placed on the support base 3 configured as described above, the heat transmitted to the case (housing) nl of the notebook personal computer N is further transmitted to the support base 3, and this support base 3 Heat is efficiently dissipated from Therefore, it is possible to further improve the heat radiation effect without modifying the existing notebook computer N.

[0092] Here, the heat radiation effect of a notebook computer alone, a support without a tourmaline layer (copper plate only), and a support 3 with a tourmaline layer (copper plate + tourmaline layer) was tested. The tourmaline layer is a mixture of shawl tourmaline powder having a particle size of approximately 6 zm and a fixing agent made of acrylic volatile synthetic resin paint in a weight ratio of 1: 1 (coating agent generation step). Then, a coating agent is formed and applied over the entire surface so that the density force of shawl tourmaline per square cm is approximately 0.025 g. In addition, the temperature sensor is attached to the notebook computer at the approximate center of the bottom to measure the temperature. Table 13 shows the experimental results. [0093] [Table 13]

Measured temperature at the bottom of the laptop

[0094] From the results of this experiment, it is possible to effectively dissipate heat simply by placing a notebook computer on the support 3 on which the tourmaline layer is formed.

[0095] As described above, it is acceptable to apply the heat dissipating member 1 to a new component that further improves the heat dissipating effect without any modification to the existing one.

[0096] Further, in addition to the personal computer described above, a broadcasting device, a video device, a communication device, a router, a switch, and the like.

It is needless to say that the present invention can be applied to other various devices such as an amplifier and the like. It can also be applied to other single devices and components, such as the heat-generating part of the liquid crystal panel, the solar cell light-receiving part, various transformers, electric motors, heat-dissipating parts such as cooling devices, refrigerant compressors, cooler heat-dissipating parts, in-vehicle radiators, and parts mounted on vehicles. Optional.

[0097] Thus, the above-described embodiment is an example of a preferred embodiment of the present invention.

However, the present invention is not limited thereto, and various modifications can be made without departing from the scope of the invention.

[0098] For example, the tourmaline layer may be provided not only on the upper surface or the surface in contact with the outside world, but also on both surfaces of the substrate, or may be provided inside so as to have a sandwich structure. The material of the substrate is not particularly limited. Further, the shape is not particularly limited, such as a thin plate shape, a rod shape, and the like. Further, the tourmaline layer may be colored.

Industrial applicability

[0099] According to the present invention, a coating agent obtained by mixing a shawl tourmaline powder having a particle diameter of 3-7 µ 7η and a fluid fixing agent is mixed with a base material made of a metal having excellent heat conductivity such as copper or aluminum. The heat dissipating member has a tourmaline layer that is applied and solidified on the surface of the heat dissipating member, making it extremely inexpensive and easy to manufacture. A significant heat radiation effect can be obtained.

[0100] By applying a powerful heat-dissipating member to various types of equipment such as machines (including parts), appliances, electronic components, etc., which need to dissipate heat, it is possible to improve efficiency and simplify the number of parts and structure. Can be expected.

[0101] In particular, by configuring the heat exchanger system of the cooling device using a force and a heat dissipating member, the temperature of the cooling device is lowered due to the improvement of the heat dissipating effect (improvement of heat exchange). Can be provided.

Brief Description of Drawings

FIG. 1 is a cross-sectional view of a heat radiating member according to Embodiment 1.

FIG. 2 is an explanatory diagram showing an outline of an experiment on a heat radiation effect.

FIG. 3 is a conceptual diagram when a heat radiation member is applied to a refrigerator.

FIG. 4 is a conceptual diagram when a heat radiation member is applied to a desktop computer.

FIG. 5 is a conceptual diagram when a heat radiation member is applied to a notebook computer.

FIG. 6 is a conceptual diagram when a heat radiation member is applied to an electric motor.

FIG. 7 is a side view of a notebook computer support base.

FIG. 8 is a plan view showing an outline of a selection experiment by particle size.

FIG. 9 is a front view showing the outline of a selection experiment by particle size.

Explanation of symbols

[0103] 1 Heat dissipation member

11 Substrate

12 g / remarin layer

3 Support

E Refrigerator heat exchanger system

F Computer

G Notebook PC

S1 Temperature sensor

Claims

The scope of the claims

[1] A coating agent, which is a mixture of shawl tourmaline powder having a particle size of approximately 37 μm and a fluid fixing agent, is applied to the surface of a substrate made of a metal with excellent thermal conductivity, such as copper or aluminum. A heat radiation member comprising a tonoremarin layer formed by applying and solidifying the shawl tourmaline powder to a density of 0.025 to 0.05 g per square cm.

[2] A heat dissipating member comprising a base made of aluminum mixed with shawl tourmaline powder having a particle size of about 3 to 7 μm.

[3] A heat dissipating member characterized in that shawl tourmaline powder having a particle size of approximately 3 to 7 μm is mixed in a plastic substrate.

[4] A heat generating unit and / or a heat radiating unit for radiating the heat in the heat exchanger and various devices and the like are configured using the heat radiating member according to claim 1 or 2. An apparatus characterized by the above.

[5] The device configured using the heat dissipating member is a cooling device, and the heat dissipating member is used for a heat exchanger system of the cooling device. The heat dissipating member according to item 4.

[6] A case, wherein a case constituting an electric device such as a computer or a hard disk is formed using the heat radiating member according to any one of claims 1 to 3.

[7] A computer support on which a notebook computer is placed, characterized in that the heat dissipation member according to any one of claims 1 to 3 is formed in a substantially L shape in a side view. Computer support table.

[8] a coating agent generating step of mixing a shawl tourmaline powder having a particle size of approximately 37 am and a fixing agent to generate a coating agent;

Coating to apply the above-mentioned coating agent on the surface of a substrate made of a metal having excellent thermal conductivity such as copper or aluminum so that the shawl tourmaline powder has a density of 0.025-0.05 g per square cm. Process and

A method for manufacturing a heat dissipating member, comprising:

[9] A method for manufacturing a heat radiating member, comprising mixing aluminum in a molten state and shawl tourmaline powder and solidifying the mixture into a desired shape. A method for manufacturing a heat radiating member, comprising mixing a fluid plastic material and shawl tourmaline powder and solidifying the mixture into a desired shape.