JP3643967B2 - Fan-type discoloring tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a blast type color change tool. More specifically, a blower type that takes in outside air from the suction port, discharges cold air from the discharge port, and blows the cold air on a thermochromic material (for example, a toy such as a doll or a car) to thermally discolor the thermochromic material. It relates to discoloring tools.
[0002]
[Prior art]
Conventionally, in this type of blowing type color changer, for example, in Japanese Utility Model Laid-Open No. 4-80596, a refrigerant such as ice pieces or cold water is accommodated in a container, and the inside of a metal pipe penetrating the container is air. A cold color changing tool for a thermochromic toy having a structure in which cold air is obtained by distributing the heat is disclosed. Japanese Utility Model Laid-Open No. 5-86400 discloses a blower-type color changer having a structure in which a heat radiating portion is provided on the outer peripheral wall of a metal container containing a heat source, and cold air is obtained by circulating air through the heat radiating portion. ing.
[0003]
However, both of the conventional blowing type color changing devices are configured such that the cold heat from the ice pieces and the cold water is indirectly transmitted to the circulating air through the metal member, so that the cooling efficiency tends to be lowered. is there. In particular, in an environment where the temperature is relatively high, sufficient cold air cannot be generated, and it is difficult to thermally discolor a thermochromic material in a short time. In addition, since the conventional blowing type color changer uses a metal member, the number of parts increases and the whole structure becomes complicated, and the whole body becomes heavy and unsuitable for carrying. The chamber is small and cannot accommodate a sufficient amount of cold heat source, and cooling performance is reduced.
[0004]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems, and improves the cooling efficiency, can change the color of a thermochromic material in a short time, and has a simple structure and portability. It is something to be offered.
[0005]
[Means for Solving the Problems]
(1) Outline The present invention is a blower-type color changer 1 that blows cool air to a thermal discoloration product 9 to discolor the heat discoloration product 9, and is provided with a cold heat source chamber 3 and a blower means 6 in a casing 2. The plurality of cooling blocks 31 are accommodated in the cooling source chamber 3 in a stacked state, and the outside air taken in from the suction port 21 by the blowing means 6 is passed between the cooling blocks 31 in the cooling source chamber 3. It is a requirement that the air is circulated to form cold air and the cold air is discharged from the discharge port 22 to the outside.
[0006]
With the above configuration, the external air taken in from the suction port 21 can be sent into the cold heat source chamber 3 and allowed to pass between the cold blocks 31 while being in direct contact with the cold block 31. Compared to a significant improvement. In particular, in the present invention, the cold heat source chamber 3 can be effectively filled with the cold heat block 31 by causing the cold heat blocks 31 to be stacked, and the contact area between the cold heat block 31 and the circulating air is further increased. Thus, the cooling efficiency is further improved. As a result, the thermochromic material 9 can be thermochromic in a short time. Furthermore, since the metal member which comprises a thermal radiation part is unnecessary, while being able to make the whole discoloration tool a simple structure, it can be set as a lightweight and compact form. In addition, since the number of parts is reduced, a large cooling heat source chamber 3 can be formed correspondingly, and many cooling blocks 31 can be accommodated, and the cooling performance is improved.
[0007]
(2) Liquid storage chamber In the blower-type color change tool 1, the liquid storage chamber 8 for storing water droplets generated from the cooling block 31 in the cold heat source chamber 3 is disposed below the bottom wall of the cold heat source chamber 3 provided with the dripping holes 81. Configuration provided (see FIGS. 1 to 4), or configuration in which the liquid storage chamber 8 is provided continuously below the bottom wall of the cold heat source chamber 3 and the outer periphery of the side wall of the cold heat source chamber 3, that is, a backflow prevention mechanism A configuration provided with (see FIGS. 2 and 3) is effective.
[0008]
The liquid storage chamber 8 stores water droplets generated from the cold block 31 (for example, water droplets eluted from ice blocks or water droplets due to condensation from the cold storage agent block) in the space through the dropping holes 81. Thereby, there is always no liquid in the cold heat source chamber 3, the air circulation gap between the cold heat blocks 31 can be maintained, and excellent cooling performance for a long period can be maintained. (See Figure 1)
[0009]
Further, the liquid storage chamber 8 is continuously disposed below the bottom wall of the cold heat source chamber 3 and on the outer periphery of the side wall of the cold heat source chamber 3, so that the color changing tool main body can be placed at any inclination angle. A liquid storage space exists below the dripping hole 81. Therefore, for example, even if the color changer main body is tilted sideways or repeatedly, as shown in FIG. 3, the liquid in the liquid storage chamber 8 moves from the bottom of the liquid storage chamber 8 to the space on the side wall of the cold heat source chamber 3. Therefore, there is no possibility of returning to the inside of the cold heat source chamber 3 or leaking from the discharge port 22 or the suction port 21 to the outside. (See Figs. 2 and 3)
[0010]
(3) Blower means The blower means 6 includes, for example, a centrifugal fan, an axial fan, or a cross-flow fan, and among them, a high discharge force is particularly required to allow air to pass through a narrow gap between the cooling blocks 31. A centrifugal fan (sirocco fan) having a high suction force is preferred. Further, the position where the air blowing means 6 is provided in the casing 2 is any position of the air flow passage between the cold heat source chamber 3 and the discharge port 22 or the air flow passage between the cold heat source chamber 3 and the suction port 21. You may arrange in.
[0011]
(4) Cooling block As the cooling block 31, for example, an ice block, a metal block, a cold storage agent block (a structure in which a liquid cold storage agent is sealed inside by a thin-walled plastic outer shell, also referred to as a cold storage block), etc. Can be mentioned. The shape of the cooling block 31 may be any shape such as a sphere, a cone, a pyramid, a cube, a rectangular parallelepiped, and an annular body. Moreover, it is good to cool the said metal lump and the said cool storage agent block with a refrigerator etc. previously. The ice block is preferable in that it can be easily obtained at home, and the cold storage agent block and the metal block are preferable in that the liquid can be used repeatedly without melting.
[0012]
(5) Cold heat source chamber In the cold heat source chamber 3, the cold block 31 is preferably accommodated in a randomly stacked state. In that case, the air circulation gap formed between the cooling blocks 31 becomes a bent and complicated air flow passage, and the cooling performance is further improved. In order to effectively pass between all the plurality of stacked cooling blocks 31 and increase the cooling efficiency, it is preferable that the air flowing through the cooling source chamber 3 flows upward or downward.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Thick arrows indicate circulating air.
[0014]
(Example 1)
FIG. 1 shows a first embodiment of the present invention.
The casing 2 is a hollow container having a size capable of gripping the outer peripheral surface by hand, and the blower chamber 5, the cold heat source chamber 3, and the liquid storage chamber 8 are arranged in communication from the top in the inside thereof. A suction port 21 and a discharge port 22 are provided on the outer surface.
[0015]
The blower chamber 5 is disposed in the upper part of the cold heat source chamber 3, communicates with the outside through the discharge port 22, and communicates with the lower cold heat source chamber 3 through the suction hole 51. Also, a blowing means 6 is provided in the blowing chamber 5. Specifically, the air blowing means 6 includes a DC power source 63 (for example, a battery), a motor 62 connected to the DC power source 63, and a fan 61 fixed to the output shaft of the motor 62. I am a fan.
[0016]
The motor 62 and the battery 63 are accommodated in a dome-shaped protrusion at the top of the air blowing chamber 5, and the fan 61 is accommodated in the air flow passage of the air blowing chamber 5. By the rotation of the fan 61, cold air from the cold source chamber 3 can be sucked into the blower chamber 5 through the suction hole 51 and discharged from the discharge port 22 to the outside.
[0017]
Further, the suction hole 51 of the blower chamber 5 can adjust the suction amount or discharge amount of the centrifugal fan according to the opening position, the opening amount, or the number of holes. For example, if the opening amount of the suction hole 51 is made extremely large so that the entire lower surface of the fan 61 is opened and the turbulent flow is forcibly generated in the vicinity of the suction hole 51, the suction amount of the blowing means 6 is reduced. Thereby, the air supply from the cold heat source chamber 3 to the air blowing chamber 5 is delayed and stopped until the air is sufficiently cooled in the cold heat source chamber 3. For this reason, although the amount of discharged cool air is reduced, the temperature is extremely low, and lightweight objects such as doll's hair and costumes (specifically, thermochromic processing of fabrics, threads, filaments, etc. having a relatively small heat capacity) Optimal for thermal discoloration of the body.
[0018]
The cold heat source chamber 3 is provided at a position below the blower chamber 5. Specifically, the upper part of the cold heat source chamber 3 communicates with the blower chamber 5 through the suction hole 51, and the lower part of the side wall communicates with the outside through the communication hole 41. Between the communication hole 41 and the suction port 21, an air supply path 4 that connects the two is provided in a tubular shape on the side wall of the cold heat source chamber 3. By the air supply path 4, the external air from the suction port 21 is sent from the communication hole 41 to the lower part of the cold heat source chamber 3 through the inside.
[0019]
A plurality of cooling blocks 31 (specifically, ice blocks) are accommodated in the cooling heat source chamber 3 in a randomly stacked state. And by the action | operation of the ventilation means 6, the external air taken in from the suction inlet 21 is sent into the cold-heat source chamber 3 through the air supply path 4 and the communicating hole 41, and it distribute | circulated between the ice blocks 31 and became cold air. Thereafter, the air is sucked into the blower chamber 5 from the suction hole 51 and finally blown out from the discharge port 22. In particular, since the air in the cold heat source chamber 3 circulates from the bottom to the upper intricate gaps formed between the stacked ice blocks 31, all the cold blocks accommodated in the cold heat source chamber 3 are used. The circulating air can be effectively brought into contact with 31 and contributes to the improvement of the cooling efficiency.
[0020]
An opening 32 for taking in and out the cooling block 31 is provided in the upper part of the cooling heat source chamber 3, and a removable lid is attached to the opening 32. In addition, a plurality of dripping holes 81 are provided in the bottom wall of the cold heat source chamber 3, and a liquid storage chamber 8 for storing water melted from the ice block 31 is provided below the bottom wall. A drain hole 82 is provided in the side wall of the liquid storage chamber 8, and a removable plug is provided in the drain hole 82.
[0021]
(Example 2)
2 and 3 show a second embodiment. FIG. 2 is a vertical cross-sectional view in an upright state, and FIG. 3 is a vertical cross-sectional view in a state of being laid down sideways. The difference from the first embodiment is that the liquid storage chamber 8 has a backflow prevention function.
[0022]
The cold heat source chamber 3 has a mortar-shaped inner surface, and a dripping hole 81 is provided in the bottom wall. A suction port 21 is provided on the upper side surface of the cold heat source chamber 3. Connected to the suction port 21 is a tubular air supply path 4 which is opened at the bottom of the cold heat source chamber 3 by a communication hole 41. The air supply path 4 is arranged on the inner surface of the side wall of the cold heat source chamber 3, and sends external air into the cold heat source chamber 3 from the suction port 21.
[0023]
The liquid storage chamber 8 is formed by the outer surface of the side wall of the cold heat source chamber 3 and the bottom wall of the cold heat source chamber 3, and the inner surface of the casing 2, and the internal space has a mortar shape (or a concave shape). As a result, as shown in FIG. 3, even if the discoloring tool is tilted sideways, the water flows into the annular space on the outer periphery of the side wall of the cold heat source chamber 3, so that the water flows backward from the dripping hole 81 into the cold heat source chamber 3. There is no fear. The other configuration is the same as that of the first embodiment shown in FIG.
[0024]
(Third embodiment)
FIG. 4 shows a third embodiment.
The inside of the lower portion of the cylindrical casing 2 (that is, the inside of the cold heat source chamber 3) is divided into four compartments by a partition wall 7. Since air flows through the compartments in order, an extended air flow passage can be formed and the cooling efficiency is improved. Specifically, the four compartments are composed of a central compartment having a circular cross section and three compartments having a fan-like cross section around the compartment. In addition, the partition wall 7 is provided with communication holes 71 alternately at the upper end or the lower end, so that an air flow passage bent upward and downward is formed in the cold heat source chamber 3.
[0025]
The suction hole 51 of the blower means 6 is connected to a central compartment having a circular cross section, and the suction port 21 at the lower part of the casing 2 is opened to one compartment having a fan-like cross section. By the operation of the blowing means 6, the external air circulates in the casing 2 in the following order. Suction port 21 → cooling heat source chamber 3 (fan-shaped section chamber → communication hole 71 → fan-shaped section chamber → communication hole 71 → fan-shaped section chamber → communication hole 71 → circular section chamber) → suction hole 51 → air blowing chamber 5 → Discharge port 22;
[0026]
An opening 32 for taking in and out the cooling block 31 is provided in the upper part of the cold heat source chamber 3, and the upper part of the casing 2 accommodating the blowing means 6 functions as a lid that can be attached to and detached from the opening 32. A dripping hole 81 is provided in the bottom wall of the cold heat source chamber 3, and a liquid storage chamber 8 is disposed below the dripping hole 81. The other configuration is the same as that of the first embodiment shown in FIG.
[0027]
(Discolored state)
FIG.5 and FIG.6 shows the discoloration state of the thermochromic material 9 at the time of using the ventilation type color change tool 1 of this invention. FIG. 5 is a doll in which hair and clothes are colored with a coloring material containing a thermochromic material. FIG. 6 shows an automobile whose body is colored with a coloring material containing a thermochromic material. Reference numeral 91 denotes a discolored portion.
[0028]
The thermochromic material 9 has a thermochromic portion colored on the surface with a coloring material containing a thermochromic material. As the thermochromic material, a reversible thermochromic material having a color change point (coloring point) at room temperature or lower (for example, 5 ° C. to 20 ° C., preferably 10 ° C. to 20 ° C.) is effective. A reversible thermochromic material comprising a chromatic organic compound, an electron accepting compound, and a color change temperature adjusting agent can be mentioned.
[0029]
In addition, the thermochromic material exhibits a large hysteresis characteristic due to a temperature change and exhibits tautomerism between a colored state and a colorless state or between different colored states, and the thermochromic portion of the surface changes color due to the temperature change. In addition, it is possible to effectively use a material having a duality that can freely select one of both modes before and after the change and maintain the mode at room temperature. More specifically, in the thermochromic material, the shape of the curve plotting the color density due to temperature change increases the temperature from the lower temperature side than the color change temperature range, and conversely from the higher temperature side than the color change temperature range. It is a type that changes its color by following a path that differs greatly from the case of lowering, and in the normal temperature range between the low temperature side color change point and the high temperature side color change point, it is below the low temperature side color change point or above the high temperature side color change point. It is possible to memorize and maintain the aspect changed at the temperature.
[0030]
Examples of the thermochromic portion include a configuration in which a thermochromic layer is provided on the surface by applying paint or ink containing the thermochromic material, or a configuration made of a synthetic resin mixed with a thermochromic material. A desired color or pattern is appropriately applied.
[0031]
【The invention's effect】
With the configuration of claim 1 (that is, a configuration in which a plurality of cooling blocks are accommodated in the cooling source chamber in a stacked state and external air is circulated between the cooling blocks in the cooling source chamber), the cooling block is in direct contact with the cooling block. Since it can be passed between the cold blocks, the cooling performance is remarkably improved as compared with the prior art, and the thermochromic product can be thermochromic in a short time. In particular, in the present invention, the cooling block is stacked so that the cooling source chamber can be effectively filled with the cooling block, and the contact area between the cooling block and the circulating air is further increased. Efficiency is improved. In addition, since a conventional heat radiating portion such as a metal material is not required, the entire discoloration tool body can have a simple structure, can be reduced in weight and size, and can be easily carried.
Furthermore, a liquid storage chamber for storing water droplets generated from the cold block in the cold heat source is provided below the bottom wall of the cold heat source chamber provided with the dripping holes, so that the water droplets generated from the cold block can pass through the dripping holes in the space. Can be stored. Therefore, there is always no liquid in the cold heat source chamber, the air circulation gap between the cold heat blocks can be maintained, and excellent cooling performance for a long period can be maintained.
[0033]
According to the configuration of claim 2 (that is, a configuration in which the liquid storage chamber is continuously disposed below the bottom wall of the heat source chamber and the outer periphery of the side wall of the heat source chamber) Even in such a case, there is no possibility that the liquid in the liquid storage chamber returns to the cold heat source chamber or leaks to the outside from the discharge port or the suction port.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a second embodiment of the present invention.
FIG. 3 is a longitudinal sectional view of a second embodiment in a laid-down state.
FIG. 4 is a perspective view showing an internal structure of a third embodiment of the present invention.
FIG. 5 is a perspective view illustrating a use state of the present invention.
FIG. 6 is a perspective view illustrating a use state of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air blow type color changer 2 Casing 21 Suction inlet 22 Discharge outlet 3 Cold source room 31 Cold block 32 Opening part 4 Air supply path 41 Communication hole 5 Blower chamber 51 Suction hole 6 Blower means 61 Fan 62 Motor 63 Power supply 64 Switch 7 Partition wall 71 Communication hole 8 Liquid storage chamber 81 Drip hole 82 Drainage hole 9 Thermal discoloration material 91 Discoloration part

Claims (2)

A blower-type color changer having portability for thermally changing the thermochromic material (9) by blowing cool air onto the thermochromic material (9). (6) is provided, a plurality of cooling blocks (31) are accommodated in the cooling source chamber (3) in a stacked state, and the outside air taken in from the suction port (21) by the blowing means (6) The cooling block (31) in the cooling heat source chamber (3) is circulated between the cooling blocks (31) to form cold air, and the cooling air is discharged to the outside through the discharge port (22). liquid reservoir chamber for accommodating the water droplets resulting from 31) to (8), drip holes (81) a cold heat source chamber having a (3) blowing formula discoloration implement characterized Rukoto such is provided below the bottom wall. The blowing type color changer according to claim 1, wherein the liquid storage chamber (8) is provided continuously below the bottom wall of the cold heat source chamber (3) and the outer periphery of the side wall of the cold heat source chamber (3).

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