Temperature adjustment apparatus

Abstract

The present invention addresses the problem of providing a temperature adjustment apparatus that makes it possible to improve temperature adjustment efficiency by increasing the heat exchange rate of a heat sink. This temperature adjustment apparatus (1) has a structure formed from: a heat transfer portion (3) for transferring heat that is, for example, absorbed by one surface (8A) of a Peltier element (8); a bottom portion (4); a front portion (6); a back portion (7); and a pair of side portions (5). The temperature adjustment apparatus (1) comprises: a blower fan (12) for blowing air, the blower fan having an intake opening (7KA) for taking in air into the temperature adjustment apparatus (1), and a discharge opening (6KA) for discharging air out from the temperature adjustment apparatus (1); and a heat transfer member (13) for transferring heat to a first heat sink (11A) and a second heat sink (11B) for radiating heat that is transferred from a heat discharge portion (9) on the other-surface (8B) side of the Peltier element (8). The heat discharge portion (9) is positioned between the locations where the first heat sink (11A) and the second heat sink (11B) are positioned.

Description

Temperature adjustment device

[0001] The present disclosure relates to a temperature adjustment device that cools or warms a body through a heat transfer part that transfers heat absorbed or generated on one surface of a Peltier element.

[0002] In recent years, there have been many sweltering days that are unpleasant for people throughout the year. On such sweltering days, as a measure to prevent heat stroke, in addition to small and frequent water replenishment, the use of a proper cooling device is encouraged. However, for example, it is not easy for workers working outdoors under sweltering heat, people sleeping in a steamy indoor environment, or people engaged in recreation, sports, watching games, etc. under the scorching sun to endure the heat. Therefore, an example for solving this problem is disclosed in Patent Document 1.

[0003] Patent Document 1 discloses a technique for cooling a person's neck by a Peltier-type electric pillow including a temperature adjustment device that cools or warms a body through a heat transfer part that transfers heat absorbed or generated on one surface of a Peltier element. The temperature adjustment device disclosed in Patent Document 1 includes a large heat sink for dissipating heat generated on one surface of the Peltier element and an electric fan for air-cooling the heat sink.

[0004] Japanese Unexamined Patent Application Publication No. 2016 - 140743

[0005] The technique of Patent Document 1 has the following problems. For example, in the temperature adjustment device disclosed in Patent Document 1, only one heat sink for dissipating heat generated on one surface of the Peltier element and performing heat exchange is provided, and there is a problem that heat exchange by the heat sink is not sufficiently performed and the heat exchange rate of the heat sink is poor.

[0006] The present disclosure has been made to solve the above problems, and an object thereof is to provide a temperature adjustment device capable of improving the temperature adjustment efficiency by increasing the heat exchange rate by a heat sink.

[0007] A temperature control device having a Peltier element according to one aspect of the present disclosure made to solve the above problems, and including a heat transfer section for transferring heat absorbed or generated on one side of the Peltier element, wherein the temperature control device has a structure formed from the heat transfer section, a bottom section opposite to the heat transfer section and facing the heat transfer section, a front section, a back section facing the front section, and a pair of opposing side sections, and has an intake opening for taking in air into the inside of the temperature control device and an exhaust opening for discharging air to the outside of the temperature control device, and inside the temperature control device is provided a heat dissipation section provided on the other side of the Peltier element, a plurality of heat sinks for releasing heat transferred from the heat dissipation section, a blower fan for sending air, and a heat transfer member for transferring heat transferred from the heat dissipation section to a first heat sink and a second heat sink, and the heat dissipation section is disposed between the location where the first heat sink is disposed and the location where the second heat sink is disposed.

[0008] In this embodiment, in a temperature control device that includes a heat transfer section that transfers heat absorbed or generated on one side of a Peltier element, heat generated on the other side of the Peltier element is transferred to the heat dissipation section. Subsequently, the heat dissipation section, disposed between the first heat sink and the second heat sink, distributes and transfers the heat to each of the first and second heat sinks. Then, the air taken in from the intake opening comes into contact with the first and second heat sinks, and heat exchange takes place between the first and second heat sinks. Subsequently, the air that has undergone heat exchange is discharged from the exhaust opening. As a result, when the heat generated on the other side of the Peltier element is transferred by the first and second heat sinks releasing heat for heat exchange, the heat exchange rate of the heat sinks can be increased by about 10% compared to when only one heat sink releases heat for heat exchange. Therefore, by increasing the heat exchange rate by about 10%, it is possible to prevent the accumulation of heat-exchanged air inside the temperature control device and provide a temperature control device that improves the temperature control efficiency of the temperature control device by about 10%. Therefore, the heat transfer unit can provide comfort to people in various environments, for example, by cooling people sleeping in a hot and humid indoor environment, or warming people sleeping in a cold indoor environment.

[0009] In the above embodiment, it is preferable that the Peltier element and the heat dissipation section are arranged perpendicularly to a virtual center line extending through the center of the heat transfer section, and that the first heat sink and the second heat sink are arranged symmetrically on either side of the virtual center line when viewed from the front.

[0010] In this configuration, the Peltier element and the heat dissipation section are arranged inside the temperature control device so as to intersect perpendicularly with a virtual center line extending through the center of the heat transfer section, thereby efficiently transferring heat generated on the other side of the Peltier element to the heat dissipation section. The heat transferred to the heat dissipation section is then evenly distributed to the first heat sink and the second heat sink, which are arranged symmetrically on either side of the virtual center line when viewed from the front. As a result, the heat dissipated by the first heat sink and the heat dissipated by the second heat sink are evenly released, allowing for efficient heat exchange by the heat sinks and thus increasing the temperature control efficiency of the temperature control device.

[0011] In the above embodiment, it is preferable that the blower fan is adjacent to the heat sink, the rear portion has an intake opening facing the blower fan, and the front portion has an exhaust opening facing the blower fan.

[0012] In this configuration, air taken in through an intake opening formed on the rear is drawn in by a blower fan facing the intake opening, then heat is exchanged with a heat sink, and finally discharged from the outside of the temperature control device through an exhaust opening facing the blower fan. This creates a series of steps in which air taken in through the intake opening is efficiently brought into contact with the heat sink for heat exchange and then discharged through the exhaust opening, thereby increasing the heat exchange rate by the heat sink and allowing the temperature control device to control the temperature more efficiently.

[0013] In the above embodiment, it is preferable that the blower fan comprises a first blower fan and a second blower fan, the first blower fan is adjacent to the first heat sink, the second blower fan is adjacent to the second heat sink, the intake opening comprises a first intake opening facing the first blower fan and a second intake opening facing the second blower fan, and the exhaust opening comprises a first exhaust opening facing the first blower fan and a second exhaust opening facing the second blower fan.

[0014] In this configuration, air taken in from the first intake opening is drawn into a first blower fan facing the first intake opening, heat exchange takes place in the first heat sink, and the air is discharged from the exhaust opening facing the first blower fan to the outside of the temperature control device. Simultaneously, air taken in from the second intake opening is drawn into a second blower fan facing the second intake opening, heat exchange takes place in the second heat sink, and the air is discharged from the exhaust opening facing the second blower fan to the outside of the temperature control device. This allows for efficient heat exchange by the respective blower fans corresponding to the placement of each heat sink. Therefore, by preventing heat transferred from the other side of the Peltier element from accumulating in the heat sink, the heat exchange rate due to heat dissipation by the heat sink can be further increased.

[0015] In the above embodiment, it is preferable that the heat sink has a plurality of heat dissipation fins arranged in a row, the heat dissipation fins have through holes through which the heat transfer member is inserted, and the peripheral edges of the through holes are formed to extend toward the through holes of adjacent heat dissipation fins.

[0016] In this embodiment, the peripheral edges of the insertion holes in the multiple heat dissipation fins extend toward the insertion holes of adjacent heat dissipation fins, thereby increasing the contact area between the heat transfer member and the heat sink. This makes it easier to transfer heat generated on the other side of the Peltier element from the heat transfer member to the heat sink, allowing for more efficient heat exchange by the heat sink.

[0017] In the above embodiment, it is preferable that a shock-absorbing member is provided between the heat transfer section and the heat sink.

[0018] In this embodiment, a shock-absorbing member provided between the heat transfer section and the heat sink inside the temperature control device absorbs the pressure applied to the heat transfer section from outside the temperature control device. This prevents, for example, damage to the heat sink caused by the pressure applied to the heat transfer section from outside the temperature control device.

[0019] Therefore, the temperature control device described herein provides an excellent effect of providing a temperature control device that can improve temperature control efficiency by increasing the heat exchange rate of the heat sink.

[0020] This is a perspective view of the temperature control device according to the first embodiment, viewed from the front. This is a perspective view of the temperature control device according to the first embodiment, viewed from the rear. This is a front view of the temperature control device according to the first embodiment. This is a rear view of the temperature control device according to the first embodiment. This is a perspective view of the temperature control device according to the first embodiment, viewed from the front, with the housing removed. This is an exploded perspective view of the temperature control device according to the first embodiment, viewed from the front, with the housing removed. This is a plan view of the temperature control device according to the first embodiment, with the heat transfer unit removed. This is a cross-sectional view taken along line A-A in Figure 7. This is a cross-sectional view taken along line B-B in Figure 7. This is a cross-sectional view taken along line C-C in Figure 7. This is a block diagram showing the configuration of the operating unit provided in the temperature control device according to the first embodiment. This is an explanatory diagram showing the flow of air taken in from the intake opening according to the first embodiment. This is a first usage mode of the temperature control device according to the first embodiment. This is a second usage mode of the temperature control device according to the first embodiment.

[0021] <First Embodiment> The first embodiment of the temperature control device according to the present disclosure will be described in detail below with reference to the drawings. The temperature control device according to the present disclosure is a device that directly or indirectly cools or warms the body of a person or pet by the surface of a heat transfer part that transfers heat absorbed or generated on one side of a Peltier element. In the first embodiment, the description will be given as an example of use in which the temperature control device is installed inside a pillow or inside a pet bed.

[0022] In the temperature control device 1 according to the first embodiment, in Figure 1, the direction from the upper left to the lower right is defined as the vertical direction L, the direction from the lower left to the upper right is defined as the horizontal direction W, and the up and down direction is defined as the height direction H. The same directions as defined in Figure 1 are followed in Figures 2, 3, 4, 5, 6, and 7. In addition, in the temperature control device 1 shown in each figure, the illustrations of electrical wiring, connectors, mobile batteries, etc. are omitted.

[0023] <About Temperature Control Device 1> The temperature control device 1 will be described using Figures 1 and 2. Figure 1 is a perspective view of the temperature control device according to the first embodiment, viewed from the front. Figure 2 is a perspective view of the temperature control device according to the first embodiment, viewed from the rear. Figure 3 is a front view of the temperature control device according to the first embodiment. Figure 4 is a rear view of the temperature control device according to the first embodiment. In the first embodiment, the temperature control device according to this disclosure will be referred to as temperature control device 1.

[0024] As shown in Figures 1 to 4, the temperature control device 1 according to the first embodiment includes a housing 2, a Peltier element 8, a first heat dissipation section 9, a second heat dissipation section 10, a heat sink 11, a heat transfer member 13, a shock absorbing member 16, a blower fan 20, and an operation unit 50, etc. The Peltier element 8, the first heat dissipation section 9, the second heat dissipation section 10, the heat sink 11, the heat transfer member 13, the shock absorbing member 16, and the blower fan 20, etc. are housed inside the temperature control device 1. For example, the blower fan 20 of the first embodiment corresponds to the blower fan of this disclosure.

[0025] <About Housing 2> Next, Housing 2 will be explained using Figures 1 to 4. As shown in Figures 1 to 4, Housing 2 is broadly composed of a heat transfer section 3, a bottom section 4, a pair of side sections 5, a front section 6, and a rear section 7. The heat transfer section 3 is fixed to the pair of side sections 5, the front section 6, and the rear section 7 by screwing male and female threads together, and the bottom section 4 is fixed to the pair of side sections 5, the front section 6, and the rear section 7 by screwing male and female threads together.

[0026] The heat transfer section 3 transfers the heat absorbed or generated by one surface 8A of the Peltier element 8 and is located at the top of the housing 2. The heat transfer section 3 is made of a metal plate with excellent thermal conductivity, such as aluminum. The edges of the heat transfer section 3 may be chamfered, for example, with a 20 mm radius (R) or a 30 mm chamfer (C). By chamfering with a 20 mm radius (R) or a 30 mm chamfer, it is possible to avoid discomfort to the user HM, etc., by contact with the edge of the heat transfer section 3 when the temperature control device 1 is in use.

[0027] The bottom portion 4 is made of a metal plate with excellent thermal conductivity, such as aluminum. However, it is not limited to this. The bottom portion 4 may also be made of a thermosetting resin plate with excellent heat resistance, such as polycarbonate resin (PC Resin). As shown in Figures 1 and 2, the bottom portion 4 is formed in a rectangular shape in the first embodiment, with a vertical width Y along the vertical direction L being larger than the horizontal width T along the horizontal direction W, and is formed in the same shape as the heat transfer portion 3. For example, the bottom portion 4 of the first embodiment corresponds to the bottom portion of this disclosure.

[0028] The pair of side sections 5 consists of a left side section 5L and a right side section 5R. The left side section 5L and the right side section 5R are made of plates of thermosetting resin with excellent heat resistance, such as polycarbonate resin (PC Resin). As shown in Figures 1 and 2, the pair of side sections 5 are formed in a rectangular shape in the first embodiment, where the width T along the lateral direction W is greater than the height width along the height direction H. For example, the pair of side sections 5 in the first embodiment corresponds to the pair of side sections in this disclosure.

[0029] As shown in Figures 1 and 3, the front portion 6 is provided with a first discharge opening 6KA at one end 6A of the front portion 6 for discharging air from the internal space 2S of the temperature control device 1 to the outside of the temperature control device 1. As shown in Figures 1 and 3, the front portion 6 is provided with a second discharge opening 6KB at the other end 6B of the front portion 6 for discharging air from the internal space 2S of the temperature control device 1 to the outside of the temperature control device. The area occupied by the first discharge opening 6KA and the second discharge opening 6KB of the entire front portion 6 is at least 60%, so that air can be discharged without accumulating in the internal space 2S of the housing 2. For example, the front portion 6 of the first embodiment corresponds to the bottom portion of the present disclosure. For example, the first discharge opening 6KA and the second discharge opening 6KB of the first embodiment correspond to the discharge openings of the present disclosure. For example, the first discharge opening 6KA of the first embodiment corresponds to the first discharge opening of the present disclosure, and for example, the second discharge opening 6KB of the first embodiment corresponds to the second discharge opening of the present disclosure.

[0030] As shown in Figures 2 and 4, the rear portion 7 is provided with a first intake opening 7KA at one end 7A of the rear portion 7 for drawing air from outside the temperature control device 1 into the internal space 2S of the temperature control device 1. As shown in Figures 2 and 4, the rear portion 7 is provided with a second intake opening 7KB at the other end 7B of the rear portion 7 for drawing air from outside the temperature control device 1 into the internal space 2S of the temperature control device 1. The area occupied by the first intake opening 7KA and the second intake opening 7KB in the entire rear portion 7 is at least 60%, allowing a large amount of air to be drawn in from outside the temperature control device 1. For example, the rear portion 7 of the first embodiment corresponds to the rear portion of this disclosure.

[0031] In the first embodiment, the sum of the total area of ​​the first discharge opening 6KA and the total area of ​​the second discharge opening 6KB is the same as the sum of the total area of ​​the first intake opening 7KA and the total area of ​​the second intake opening 7KB in the first embodiment. This allows a large amount of air to be taken in from outside the temperature control device 1 and discharged without the air accumulating in the internal space 2S of the housing 2.

[0032] <About the internal space 2S of the temperature control device 1> The internal space 2S of the temperature control device 1 will be explained using Figures 1 to 10. Figure 5 is an exploded perspective view from the front when the housing is removed from the temperature control device according to the first embodiment. Figure 6 is a plan view when the heat transfer unit is removed from the temperature control device according to the first embodiment. Figure 7 is a plan view when the heat transfer unit is removed from the temperature control device according to the first embodiment. Figure 8 is a cross-sectional view taken along line A-A in Figure 7. Figure 9 is a cross-sectional view taken along line B-B in Figure 7. Figure 10 is a cross-sectional view taken along line C-C in Figure 7.

[0033] As shown in Figures 1 to 4, the internal space 2S of the temperature control device 1 according to the first embodiment houses a Peltier element 8, a first heat dissipation section 9, a second heat dissipation section 10, a heat sink 11, a heat transfer member 13, and a shock absorbing member 16. For example, the heat sink 11 of the first embodiment corresponds to the heat sink of this disclosure.

[0034] As shown in Figures 1 to 4, in the internal space 2S of the temperature control device 1, the Peltier element 8, the first heat dissipation section 9, and the second heat dissipation section 10 are arranged perpendicularly to a virtual center line AX that extends through the center of the heat transfer section 3. As shown in Figures 3 and 4, in the internal space 2S of the temperature control device 1, the first heat dissipation section 9 is located below the Peltier element 8. As shown in Figures 3 and 4, in the internal space 2S of the temperature control device 1, the second heat dissipation section 10 is located below the first heat dissipation section 9. For example, the virtual center line AX of the first embodiment corresponds to the virtual center line of this disclosure.

[0035] <About the Peltier Element 8> Next, the Peltier element 8 built into the temperature control device 1 will be described. As shown in Figure 5, the Peltier element 8 is a type of plate-shaped semiconductor thermoelectric element. When a DC current is supplied to the Peltier element 8, the flat plate portion of the Peltier element 8 absorbs heat to, for example, about 10°C, and one side becomes a state of heat absorption (cooling surface). At the same time, the other side on the opposite side heats up to, for example, about 30°C, and becomes a state of heat absorption (heating surface). The Peltier element is an element that transfers heat from the cooling surface to the heating surface, generating a large amount of heat on the heating surface. For example, the Peltier element 8 of the first embodiment corresponds to the Peltier element of this disclosure.

[0036] As shown in Figure 6, the Peltier element 8 is composed of one surface 8A of the Peltier element 8, the other surface 8B of the Peltier element 8, and an electrode 8C located between the surface 8A and the other surface 8B.

[0037] In this embodiment, the Peltier element 8 has the characteristic of simultaneously absorbing and generating heat relative to the ambient temperature, for example, within a temperature range of about 20 to 30°C.

[0038] In other words, for example, when the Peltier element 8 is operating in the summer at an ambient temperature of 35°C, the cooling surface will be heated to 15-15°C, and this heat will be used to cool the bodies of people or pets. At the same time, the heating surface will be heated to 55-65°C, and this heat will be used as waste heat.

[0039] On the other hand, when the Peltier element 8 operates in winter at an ambient temperature of 5°C, the cooling surface exhibits a temperature of -15 to -25°C, and this heat is dissipated. Simultaneously, the heating surface exhibits a temperature of 25 to 35°C, and this heat becomes warming heat for people, pets, etc.

[0040] <About the Heat Transfer Section 3> Next, the heat transfer section 3 will be described. The heat transfer section 3 is a metal plate that transfers the heat absorbed or generated on one side 8A of the Peltier element 8 when an electric current is applied. The heat transfer section 3 is made of a material that has relatively high thermal conductivity, relatively low specific gravity, is lightweight and inexpensive, and is suitable for use as a metal, such as aluminum. For example, the heat transfer section 3 of the first embodiment corresponds to the heat transfer section of this disclosure.

[0041] As shown in Figures 1 to 4, the heat transfer section 3 is attached to a pair of side sections 5, a front section 6, and a back section 7. As shown in Figures 1 to 4, the heat transfer section 3 is formed in a rectangular shape in the first embodiment, with a vertical width Y along the vertical direction L being larger than the horizontal width T. The surface surface 3A and back surface 3B of the heat transfer section 3 have an average surface roughness of several to several tens of micrometers, and are finished to suppress the height difference of fine irregularities on the surface to a small extent.

[0042] In particular, it is preferable that the average surface roughness on the surface 3A is, for example, as high as about 5 to 30 μm in surface accuracy. As shown in the usage modes of the temperature adjustment device 1 illustrated in FIGS. 13 and 14, when it is provided inside a pillow or bedding for a pet animal, etc., and cooled or warmed by the surface 3A of the heat transfer part 3, it does not become uncomfortable for a person or a pet animal, etc., and becomes favorable.

[0043] In the temperature adjustment device 1, as shown in FIGS. 5 and 6, the heat transfer part 3 is disposed in a state of being in close contact with one surface 8A of the Peltier element 8 via a grease layer (not shown). The grease layer, for example, has relatively high thermal conductivity such as satisfying at least a thermal conductivity of 5 W / m·K, and has a property of maintaining relatively high viscosity within a temperature range from zero degree to near 80°C. Specifically, the back surface 3B of the heat transfer part 3 and one surface 8A of the Peltier element 8 are arranged to face each other so as to be in surface contact with each other.

[0044] However, strictly speaking, due to the accuracy difference between the surface shape forming the back surface 3B of the heat transfer part 3 and the surface shape forming one surface 8A of the Peltier element 8, there is a slight gap (void) between the back surface 3B and the one surface 8A. Therefore, by providing a grease layer formed in a state of filling this gap with grease between the back surface 3B and the one surface 8A, the heat generated on the one surface 8A of the Peltier element 8 is transferred to the surface 3A (one side) of the heat transfer part 3 while suppressing heat transfer loss.

[0045] <Regarding the first heat dissipation section 9 and the second heat dissipation section 10> Next, the first heat dissipation section 9 and the second heat dissipation section 10 will be described using Figures 5, 6, and 9. In the temperature control device 1 of the first embodiment, as shown in Figures 5, 6, and 9, the other surface 8B of the Peltier element 8 and the surface 9A of the first heat dissipation section 9 are arranged opposite each other so as to be in surface contact. However, strictly speaking, due to the difference in precision between the surface shape of the other surface 8B of the Peltier element 8 and the surface shape of the surface 9A of the first heat dissipation section 9, there is a small gap (air gap) between the other surface 8B of the Peltier element 8 and the surface 9A of the first heat dissipation section 9. Therefore, by providing a grease layer, formed by filling this gap with grease, between the other surface 8B of the Peltier element 8 and the surface 9A of the first heat dissipation section 9, the heat generated on the other surface 8B of the Peltier element 8 is transferred to the first heat dissipation section 9 with reduced heat transfer loss.

[0046] As shown in Figure 6, the second heat dissipation section 10 has a plurality of recesses 10B (for example, 4) for arranging the heat transfer member 13. The heat transfer member 13 has a recessed portion 13A that is recessed to make surface contact with the back surface 9B of the first heat dissipation section 9.

[0047] In the temperature control device 1 of the first embodiment, as shown in Figures 5, 6, and 9, the back surface 9B of the first heat dissipation section 9 and the surface 10A of the second heat dissipation section 10 are arranged opposite each other so as to be in surface contact. More precisely, due to the difference in precision between the surface shape of the back surface 9B of the first heat dissipation section 9 and the surface 10A of the second heat dissipation section 10, there is a small gap (void) between the back surface 9B of the first heat dissipation section 9 and the surface 10A of the second heat dissipation section 10. Therefore, by providing a grease layer formed by filling this void with grease between the back surface 9B of the first heat dissipation section 9 and the surface 10A of the second heat dissipation section 10, the heat transferred to the first heat dissipation section 9 is transferred to the second heat dissipation section 10 with reduced heat transfer loss.

[0048] In the temperature adjustment device 1 of the first embodiment, as shown in FIGS. 5, 6, and 9, the concave portion 10B of the second exhaust heat portion 10 and one surface of the heat transfer member 13 are arranged so as to be in surface contact with each other. Strictly speaking, due to the accuracy difference between the surface shape forming the concave portion 10B of the second exhaust heat portion 10 and the surface shape forming one surface of the heat transfer member 13, there is a slight gap (void) between the concave portion 10B of the second exhaust heat portion 10 and one surface of the heat transfer member 13. Therefore, by providing a grease layer formed in a state where this gap is filled with grease between the concave portion 10B of the second exhaust heat portion 10 and one surface of the heat transfer member 13, the heat transferred to the second exhaust heat portion 10 is transferred to the heat transfer member 13 while suppressing heat transfer loss.

[0049] The back surface 9B of the first exhaust heat portion 9 and the surfaces of the concave portions 13A of a plurality (for example, four) of heat transfer members 13 are arranged to face each other so as to be in surface contact with each other. Strictly speaking, due to the accuracy difference between the surface shape forming the back surface 9B of the first exhaust heat portion 9 and the surface shape forming the surfaces of the concave portions 13A of the heat transfer member 13, there is a slight gap (void) between the back surface 9B of the first exhaust heat portion 9 and the surfaces of the concave portions 13A of the heat transfer member 13. Therefore, by providing a grease layer formed in a state where this gap is filled with grease between the back surface 9B of the first exhaust heat portion 9 and the surfaces of the concave portions 13A of the heat transfer member 13, the heat transferred to the first exhaust heat portion 9 is transferred to the heat transfer member 13 while suppressing heat transfer loss.

[0050] <Regarding the heat sink 11> Next, the heat sink 11 will be described with reference to FIGS. 5 and 6. A plurality (for example, two) of heat sinks 11 are incorporated in the internal space 2S of the temperature adjustment device 1 of the first embodiment. In the internal space 2S of the temperature adjustment device 1 of the first embodiment, a first heat sink 11A and a second heat sink 11B are incorporated. For example, the first heat sink 11A of the first embodiment corresponds to the first heat sink of the present disclosure, and for example, the second heat sink 11B of the first embodiment corresponds to the second heat sink of the present disclosure.

[0051] As shown in Figures 5 and 6, the heat sink 11 (first heat sink 11A and second heat sink 11B) is made up of multiple (e.g., 19) heat dissipation fins 12 arranged at regular intervals (e.g., 2 mm). The heat dissipation fins 12 engage with each other at regular intervals (e.g., 2 mm), maintaining the arrangement of multiple (e.g., 19) heat dissipation fins 12 at regular intervals (e.g., 2 mm). As shown in Figures 3 and 10, the regular intervals (e.g., 2 mm) between the heat dissipation fins 12 create an air passage WP for air supplied by the blower fan 20 to pass through. As the air supplied by the blower fan 20 passes through the air passage WP, the air that has undergone heat exchange in the heat sink 11 (first heat sink 11A and second heat sink 11B) can be discharged to the outside of the temperature control device 1. In order to maintain the state in which multiple (for example, 19) heat dissipation fins 12 are arranged side by side in the heat sink 11, adjacent heat dissipation fins 12 are engaged with each other. For example, the heat dissipation fins 12 of the first embodiment correspond to the heat dissipation fins of this disclosure. For example, the through hole 14 of the first embodiment corresponds to the through hole of this disclosure. For example, the peripheral edge 15 of the first embodiment corresponds to the peripheral edge of this disclosure.

[0052] The heat sinks 11 (first heat sink 11A and second heat sink 11B) are configured to dissipate heat towards the front portion 6 of the temperature control device 1. As shown in Figure 3, an impact absorbing member 16 is provided between the heat transfer section 3 and the heat sinks 11 (first heat sink 11A and second heat sink 11B). The impact absorbing member 16 is a member that prevents the heat sinks 11 (first heat sink 11A and second heat sink 11B) from being damaged by pressure from the surface 3A side of the heat transfer section 3. The impact absorbing member 16 is made of a highly elastic and heat-insulating material such as polyurethane. For example, the impact absorbing member 16 of the first embodiment corresponds to the impact absorbing member of this disclosure.

[0053] As shown in Figures 5 to 8 and Figure 10, the heat sink 12 has a plurality of (for example, 4) through holes 14 for inserting the heat transfer member 13. As shown in Figures 6, 7 and 10, in the first heat sink 11A, the peripheral edge 15 of the through hole 14 on one surface 12A of the heat sink 12 is shaped to extend toward the through hole 14 of the adjacent heat sink 12. As shown in Figures 6, 7 and 10, in the first heat sink 11A, the peripheral edge 15 of the through hole 14 on the other surface 12B of the heat sink 12 does not extend toward the through hole 14 of the adjacent heat sink 12. As shown in Figures 6, 7 and 10, in the second heat sink 11B, the peripheral edge 15 of the through hole 14 on one surface 12A of the heat sink 12 is shaped to extend toward the through hole 14 of the adjacent heat sink 12. As shown in Figures 6, 7, and 10, in the second heat sink 11B, the peripheral edge 15 of the insertion hole 14 on the other surface 12B of the heat dissipation fin 12 does not extend toward the insertion hole 14 of the adjacent heat dissipation fin 12. As shown in Figures 3 and 7, the peripheral edge 15 of the insertion hole 14 is in contact with the other surface 12B of the adjacent heat dissipation fin 12. This contact between the peripheral edge 15 of the insertion hole 14 and the other surface 12B of the adjacent heat dissipation fin 12 allows heat dissipation from the heat dissipation fin 12 to be transferred to the adjacent heat dissipation fin 12. As shown in Figure 10, the peripheral edge 15 allows the heat dissipation fins 12 to maintain a certain distance (for example, 2 mm) from each other. Furthermore, the peripheral edge 15 increases the contact area between the heat dissipation fin 12 and the heat transfer member 13, allowing for efficient heat transfer from the heat transfer member 13 to the heat sink 11 (first heat sink 11A, second heat sink 11B).

[0054] As shown in Figure 8, the multiple (e.g., 4) through holes 14 in the second heat sink 11B are positioned on the heat dissipation fins 12 closer to the second discharge opening 6KB than to the second blower fan 20B. This makes it easier for the heat transferred to the multiple (e.g., 4) heat transfer members 13 inserted through the multiple (e.g., 4) through holes 14 to dissipate from the second discharge opening 6KB. Similarly to the second heat sink 11B, the multiple (e.g., 4) through holes 14 in the first heat sink 11A are positioned on the heat dissipation fins 12 closer to the first discharge opening 6KA than to the first blower fan 20A. This makes it easier for the heat transferred to the multiple (e.g., 4) heat transfer members 13 inserted through the multiple (e.g., 4) through holes 14 to dissipate from the first discharge opening 6KA.

[0055] <About the heat transfer members 13> In the internal space 2S of the temperature control device 1, as shown in Figures 3 and 4, a plurality of (for example, 4) heat transfer members 13 extending in the vertical direction L of the temperature control device 1 are provided in the recessed portion 10B of the second heat dissipation section 10. The plurality of (for example, 4) heat transfer members 13 are made of a material with high electrical conductivity and high thermal conductivity, such as copper. The heat dissipated on the other side 8B of the Peltier element 8 is transferred from the first heat dissipation section 9 to the second heat dissipation section 10 and the plurality of (for example, 4) heat transfer members 13. Subsequently, the heat dissipated by the plurality of (for example, 4) heat transfer members 13 is transferred to the first heat sink 11A and the second heat sink 11B. As shown in Figures 3 and 7, in the internal space 2S of the housing 2, the second heat dissipation section 10 and the first heat sink 11A are separated by a certain distance (for example, 10 mm). As shown in Figures 3 and 7, the second heat dissipation section 10 and the second heat sink 11B are separated by a certain distance (for example, 10 mm) in the internal space 2S of the housing 2.

[0056] As shown in Figures 3, 7, and 10, the multiple (e.g., 4) heat transfer members 13 between the second heat dissipation section 10 and the first heat sink 11A (e.g., 10 mm) are exposed and not covered by the first heat dissipation section 9, the second heat dissipation section 10, and the first heat sink 11A. Heat can be released from the multiple (e.g., 4) heat transfer members 13 that are exposed between the second heat dissipation section 10 and the first heat sink 11A (e.g., 10 mm). The wide gap between the second heat dissipation section 10 and the first heat sink 11A (e.g., 10 mm) prevents heat from accumulating in that gap.

[0057] As shown in Figures 3, 7, and 10, the multiple (e.g., 4) heat transfer members 13 between the second heat dissipation section 10 and the second heat sink 11B (e.g., 10 mm) are exposed and not covered by the first heat dissipation section 9, the second heat dissipation section 10, and the second heat sink 11B. Heat can be released from the multiple (e.g., 4) heat transfer members 13 that are exposed between the second heat dissipation section 10 and the second heat sink 11B (e.g., 10 mm). The wide gap (e.g., 10 mm) between the second heat dissipation section 10 and the second heat sink 11B prevents heat from accumulating in that gap.

[0058] <About the Blower Fan 20> Next, the blower fan 20 will be described using Figures 2, 4, and 7. The blower fan 20 is a fan that sends outside air drawn in through the first intake opening 7KA and the second intake opening 7KB to the adjacent heat sink 11 (first heat sink 11A, second heat sink 11B). The blower fan 20 according to the first embodiment is, for example, a propeller-type axial flow fan having a propeller. However, it is not limited to this. For example, the blower fan 20 may be a multi-blade blower (sirocco fan), which is a type of centrifugal blower. For example, the first blower fan 20A in the first embodiment corresponds to the first blower fan of this disclosure, and for example, the second blower fan 20B in the first embodiment corresponds to the second blower fan of this disclosure.

[0059] In the internal space 2S of the temperature control device 1 according to the first embodiment, a first blower fan 20A is provided on the side of the first intake opening 7KA. The first blower fan 20A is provided so as to face the first intake opening 7KA, the first heat sink 11A, and the first discharge opening 6KA. In the internal space 2S of the temperature control device 1 according to the first embodiment, a second blower fan 20B is provided on the side of the second intake opening 7KB. The second blower fan 20B is provided so as to face the second intake opening 7KB, the second heat sink 11B, and the second discharge opening 6KB. For example, the first intake opening 7KA and the second intake opening 7KB in the first embodiment correspond to the intake openings of this disclosure. For example, the first intake opening 7KA in the first embodiment corresponds to the first intake opening of this disclosure. For example, the second intake opening 7KB in the first embodiment corresponds to the second intake opening of this disclosure.

[0060] <Regarding the power supply> In the temperature control device 1, the Peltier element 8 is electrically connected to the mobile battery via wiring through the operation unit 50.

[0061] The main wiring and the mobile battery can be easily connected and disconnected via a connector, such as a USB (Universal Serial Bus) connection. Power from the mobile battery is supplied through the wiring to the Peltier element 8, the motor 22 of the first blower fan 20A, and the motor 22 of the second blower fan 20B. The mobile battery according to the first embodiment is a general-purpose power supply configured with specifications such as an output of 12V (volts).

[0062] <About the Operation Unit 50> Next, the operation unit of the temperature control device 1 will be described using Figure 11. Figure 11 is a block diagram showing the configuration of the operation unit provided in the temperature control device according to the first embodiment. As shown in Figure 11, the operation unit 50 includes a control unit 51, an operation unit 52, a display unit 53, etc. Within the operation unit 50, the operation unit 52 and the display unit 53 are electrically connected to the control unit 51.

[0063] The operation unit 52 is configured to allow control of switching the power supply to the Peltier element 8 on or off for the temperature control device 1 by pressing a button located on the upper surface of the operation unit 50. The operation unit 52 is configured to allow control of switching the power supply to the motor 22 that rotates the propeller 21 of the first blower fan 20A on or off by pressing a button located on the upper surface of the operation unit 50. The operation unit 52 is configured to allow control of switching the power supply to the motor 22 that rotates the propeller 21 of the second blower fan 20B on or off by pressing a button located on the upper surface of the operation unit 50. The rotation speed of the propeller 21 of the blower fan 20 is set to, for example, 4000 rpm. The display unit 53 is a display unit located on the upper surface of the operation unit 50 and is configured to allow selective illumination from multiple colors.

[0064] If the control unit 51 has a control mechanism to reverse the direction of the DC current supplied from the mobile battery to the Peltier element 8, the operation unit 52 lightly presses the press-button on the upper surface of the operation unit 50 based on a predetermined operation mode different from the on / off switching operation of the power supply. This makes it possible to switch the polarity of the current supplied to the temperature control device 1.

[0065] In the temperature control device 1, when the direction of the DC current supplied to the Peltier element 8 is reversed, the functions of one surface 8A and the other surface 8B are reversed. Therefore, if the control unit 51 is configured to reverse the polarity of the current supplied to the Peltier element 8, the surface 3A of the heat transfer unit 3 can be selectively varied by the control unit 51 between a cooling surface cooled by heat absorption and a heating surface heated by heat generation. As a result, the cooling surface and the heating surface on surface 3A are swapped. If the control unit 51 does not have a function to switch the direction of the current to the Peltier element 8, then surface 3A is either a cooling surface or a heating surface, but not both.

[0066] <Heat exchange by heat sink 11> Next, heat exchange by heat sink 11 will be explained using Figure 12. Figure 12 is an explanatory diagram showing the flow of air taken in from the intake opening according to the first embodiment. The black arrows in Figure 12 indicate the flow of air taken in from the first intake opening 7KA and discharged to the first exhaust opening 6KA, and the flow of air taken in from the second intake opening 7KB and discharged to the second exhaust opening 6KB.

[0067] For example, in the temperature control device 1, if the surface 3A of the heat transfer section 3 is a cooling surface that provides cold temperatures for cooling a person's body, the other surface 8B of the Peltier element 8 will generate heat and become a heated surface. The heat generated by the heat generated on the other surface 8B of the Peltier element 8 is transferred to the first heat dissipation section 9. Subsequently, the heat transferred to the first heat dissipation section 9 is transferred to the second heat dissipation section 10, which is in contact with the first heat dissipation section 9, and to the four heat transfer members 13. The heat transferred to the four heat transfer members 13 is then transferred to the first heat sink 11A and the second heat sink 11B through the four heat transfer members 13 that are inserted through the insertion holes 14.

[0068] As shown in Figure 12, when power is supplied to the motor of the first blower fan 20A, the propeller 21 of the first blower fan 20A rotates. The air generated by the rotation of the propeller 21, i.e., air from outside the temperature control device 1, is drawn in from the first intake opening 7KA into the internal space 2S of the temperature control device 1. The air drawn into the internal space 2S of the temperature control device 1 passes through multiple (for example, 18) air passages WP in the first heat sink 11A and heads towards the first discharge opening 6KA, where it exchanges heat with the high-temperature first heat sink 11A. As a result, the first heat sink 11A is air-cooled.

[0069] As shown in Figure 12, when power is supplied to the motor of the second blower fan 20B, the propeller 21 of the second blower fan 20B rotates. The air generated by the rotation of the propeller 21, i.e., air from outside the temperature control device 1, is drawn in from the second intake opening 7KB into the internal space 2S of the temperature control device 1. The air drawn into the internal space 2S of the temperature control device 1 passes through multiple (for example, 18) air passages WP in the second heat sink 11B and heads towards the second discharge opening 6KB, where it exchanges heat with the high-temperature second heat sink 11B. As a result, the second heat sink 11B is air-cooled.

[0070] The air heated by heat exchange with the heat sink 11 (first heat sink 11A and second heat sink 11B) is considerably lower than the temperature generated on the other side 8B of the Peltier element 8, and is closer to the temperature of the intake air (for example, about 5°C higher than the temperature of the intake air). As a result, even if a user HM or the like uses the temperature control device 1, the air is discharged to the outside of the housing 2 through the first exhaust opening 6KA and the second exhaust opening 6KB by the blower fan 20 without causing any discomfort.

[0071] At this time, the heat sinks 11 (first heat sink 11A and second heat sink 11B) draw in outside air from outside the temperature control device 1 at an airflow rate that prevents air stagnation in the multiple (for example, 18) air passages WP. The air heated in the internal space 2S is then forcibly discharged to the outside of the temperature control device 1.

[0072] For example, in the temperature control device 1, if the surface 3A of the heat transfer section 3 is a heating surface that provides warmth for warming a person's body, the other surface 8B of the Peltier element 8 absorbs heat and becomes a cooling surface. The waste heat generated by the heat absorption of the other surface 8B of the Peltier element 8 is transferred to the first heat dissipation section 9. Subsequently, the waste heat transferred to the first heat dissipation section 9 is transferred to the second heat dissipation section 10, which is in contact with the first heat dissipation section 9, and to the four heat transfer members 13. The waste heat transferred to the four heat transfer members 13 is then transferred from the four heat transfer members 13, which are inserted through the insertion holes 14, to the first heat sink 11A and the second heat sink 11B.

[0073] As shown in Figure 12, when power is supplied to the motor 22 of the first blower fan 20A, the propeller 21 of the first blower fan 20A rotates. The air generated by the rotation of the propeller 21, i.e., air from outside the temperature control device 1, is drawn in from the first intake opening 7KA into the internal space 2S of the temperature control device 1. The air drawn into the internal space 2S of the temperature control device 1 passes through multiple (for example, 18) air passages WP in the first heat sink 11A and heads towards the first discharge opening 6KA, where it exchanges heat with the cooled first heat sink 11A. As a result, the temperature of the first heat sink 11A is regulated.

[0074] As shown in Figure 12, when power is supplied to the motor 22 of the second blower fan 20B, the propeller 21 of the second blower fan 20B rotates. The air generated by the rotation of the propeller 21, i.e., air from outside the temperature control device 1, is drawn in from the first intake opening 7KA into the internal space 2S of the temperature control device 1. The air drawn into the internal space 2S of the temperature control device 1 passes through multiple (for example, 18) air passages WP in the second heat sink 11B and heads towards the first discharge opening 6KA, where it exchanges heat with the cooled second heat sink 11B. As a result, the temperature of the second heat sink 11B is regulated.

[0075] The air whose temperature has been adjusted through heat exchange with the heat sinks 11 (first heat sink 11A and second heat sink 11B) is considerably higher than the heat absorption temperature on the other side 8B of the Peltier element 8. The air whose temperature has been adjusted through heat exchange with the heat sinks 11 (first heat sink 11A and second heat sink 11B) is closer to the temperature of the intake air (for example, about 5°C lower than the temperature of the intake air). As a result, even if a user HM or the like uses the temperature adjustment device 1, the air is discharged to the outside of the housing 2 through the exhaust openings (first exhaust opening 6KA, second exhaust opening 6KB) by the blower fan 20 without causing any discomfort.

[0076] At this time, the heat sinks 11 (first heat sink 11A and second heat sink 11B) draw in outside air from outside the temperature control device 1 at an airflow rate that prevents air stagnation in the multiple (for example, 18) air passages WP. The air cooled in the internal space 2S is then forcibly discharged to the outside of the temperature control device 1.

[0077] As explained in Figure 12, in the temperature control device 1 according to the first embodiment, air that has undergone heat exchange by the first heat sink 11A is discharged from the first discharge opening 6KA, and air that has undergone heat exchange by the second heat sink 11B is discharged from the second discharge opening 6KB. This allows air to be discharged from the other discharge opening even if, for example, one of the discharge openings, the first discharge opening 6KA or the second discharge opening 6KB, is accidentally blocked when using the temperature control device 1.

[0078] As shown in Figures 3, 7, and 12, air blown by the first blower fan 20A comes into contact with the exposed locations of multiple (e.g., 4) heat transfer members 13 in the space between the second heat dissipation section 10 and the first heat sink 11A (e.g., 10 mm), and heat exchange takes place. The air that has undergone heat exchange is discharged from the first discharge opening 6KA, which prevents heat from accumulating in the internal space 2S of the housing 2.

[0079] As shown in Figures 3, 7, and 12, air blown by the second blower fan 20B comes into contact with the exposed locations of multiple (e.g., 4) heat transfer members 13 in the space between the second heat dissipation section 10 and the second heat sink 11B (e.g., 10 mm), and heat exchange takes place. The air that has undergone heat exchange is discharged from the second discharge opening 6KB, which prevents heat from accumulating in the internal space 2S of the housing 2.

[0080] <Regarding the usage of the temperature control device 1> Next, the usage of the temperature control device 1 will be explained using Figures 13 and 14. Figure 13 is usage mode 1 of the temperature control device according to the first embodiment. Figure 14 is usage mode 2 of the temperature control device according to the first embodiment.

[0081] First, using Figure 13, we will explain one usage mode of the temperature control device 1, in which the temperature control device 1 is installed inside the pillow PL. The temperature control device 1 according to the first embodiment can be installed and used inside the pillow PL. In the usage state shown in Figure 13, the user HM is lying on their back, and the user HM's head HD is supported by the pillow PL. The temperature control device 1 is installed on the underside of the head HD, that is, inside the pillow PL. The surface 3A of the heat transfer part 3 of this temperature control device 1 becomes a cooling surface or a heating surface, thereby adjusting the temperature of the user HM's head HD. For example, by cooling the head HD of a user HM sleeping in a hot and humid indoor environment, it is possible to make it easier for the user HM to fall asleep. For example, by warming the head HD of a user HM sleeping in a cold indoor environment, it is possible to improve the quality of the user HM's sleep.

[0082] Next, using Figure 14, we will describe a second way of using the temperature control device 1, specifically when the temperature control device 1 is installed inside the pet bed BT. The temperature control device 1 according to the first embodiment can be installed and used inside the pet bed BT. In the state shown in Figure 14, the pet animal PT (for example, a dog) is lying on its side, with the entire body of the pet animal PT supported by the pet bed BT. The temperature control device 1 is installed on the underside of the pet animal PT, that is, inside the pet bed BT. The surface 3A of the heat transfer part 3 of this temperature control device 1 becomes a cooling surface or a heating surface, thereby adjusting the temperature of the entire body of the pet animal PT. For example, by cooling the entire body of a pet animal PT sleeping in a hot and humid indoor environment, the pet animal PT, which has difficulty regulating its body temperature, can sleep comfortably. For example, by warming the entire body of a pet animal PT sleeping in a cold indoor environment, the pet animal PT, which has difficulty regulating its body temperature, can sleep comfortably.

[0083] Next, the operation and effects of the temperature control device 1 according to the first embodiment will be described.

[0084] A temperature control device 1 having a Peltier element 8 according to the first embodiment, and including a heat transfer section 3 that transfers heat absorbed or generated on one side 8A of the Peltier element 8, the temperature control device 1 has a structure formed from the heat transfer section 3, a bottom section 4 on the opposite side of the heat transfer section 3 and facing the heat transfer section 3, a front section 6, a rear section 7 facing the front section 6, and a pair of opposing side sections 5, and includes a first intake opening 7KA and a second intake opening 7KB for taking air into the interior of the temperature control device 1, and a first intake opening 7KB for discharging air to the outside of the temperature control device 1 The temperature control device 1 has an exhaust opening 6KA and a second exhaust opening 6KB. Inside the temperature control device 1, there is a first heat dissipation section 9 provided on the other side 8B of the Peltier element 8, a plurality of heat sinks 11 for releasing heat transferred from the heat transfer section 3, a blower fan 20 for blowing air, and a heat transfer member 13 for transferring heat transferred from the first heat dissipation section 9 to the first heat sink 11A and the second heat sink 11B. The first heat dissipation section 9 is located between the location of the first heat sink 11A and the location of the second heat sink 11B.

[0085] According to the temperature control device 1 of the first embodiment, the heat generated on the other side 8B of the Peltier element 8 is transferred to the first heat dissipation section 9. Subsequently, the first heat dissipation section 9, which is disposed between the first heat sink 11A and the second heat sink 11B, distributes the heat to both the first heat sink 11A and the second heat sink 11B. The air taken in from the first intake opening 7KA and the second intake opening 7KB then comes into contact with the first heat sink 11A and the second heat sink 11B, causing heat exchange between the first heat sink 11A and the second heat sink 11B. Subsequently, the air that has undergone heat exchange is discharged from the first discharge opening 6KA and the second discharge opening 6KB. As a result, the heat exchange rate of the heat sinks can be increased by about 10% when the first heat sink 11A and the second heat sink 11B release heat compared to when only one heat sink releases heat and performs heat exchange. Therefore, by increasing the heat exchange efficiency of the heat sink by about 10%, it is possible to prevent the stagnation of heat-exchanged air in the internal space 2S, and provide a temperature control device 1 that improves the temperature control efficiency of the temperature control device by about 10%. Accordingly, for example, as shown in Figures 13 and 14, the heat transfer section 3 can be used to cool or warm people sleeping indoors or pets that have more difficulty regulating their body temperature than humans, thereby providing comfort to people and pets.

[0086] In the temperature control device 1 according to the first embodiment, the Peltier element 8, the first heat dissipation section 9, and the second heat dissipation section 10 are arranged perpendicularly to a virtual center line AX extending through the center of the heat transfer section 3, and the first heat sink 11A and the second heat sink 11B are arranged symmetrically on either side of the virtual center line AX when viewed from the front section 6.

[0087] In the internal space 2S of the temperature control device 1 according to the first embodiment, the Peltier element 8, the first heat dissipation section 9, and the second heat dissipation section 10 are arranged perpendicularly to a virtual center line AX that extends through the center of the heat transfer section 3. As a result, the heat generated from the other side 8B of the Peltier element 8 is efficiently transferred to the first heat dissipation section 9, and then efficiently transferred from the first heat dissipation section 9 to the second heat dissipation section 10. As shown in Figure 3, when viewed from the front 6, the first heat sink 11A and the second heat sink 11B are arranged symmetrically on either side of the virtual center line AX. As a result, the heat transferred to the second heat dissipation section 10 is evenly transferred to the first heat sink 11A and the second heat sink 11B via the heat transfer member 13. Therefore, the heat dissipated from the other side 8B of the Peltier element 8 is transferred evenly to the first heat sink 11A and the second heat sink 11B, so that neither the first heat sink 11A nor the second heat sink 11B is subjected to excessive load. In this way, the first heat sink 11A and the second heat sink 11B can exchange heat efficiently, and the efficiency of temperature control of the temperature control device 1 can be further improved.

[0088] In the temperature control device 1 according to the first embodiment, the blower fan 20 is adjacent to the heat sink 11, the rear portion 7 faces the blower fan 20 and has a first intake opening 7KA for taking in air into the internal space 2S of the temperature control device 1, and the front portion 6 faces the blower fan 20 and has a first exhaust opening 6KA for discharging the air that has undergone heat exchange in the heat sink 11 to the outside of the temperature control device 1.

[0089] According to the temperature control device 1 of the first embodiment, air taken in from the first intake opening 7KA formed on the rear part 7 is drawn in by a blower fan 20 facing the first intake opening 7KA. Subsequently, heat exchange takes place in the heat sink 11, and the air taken in from the first intake opening 7KA is discharged to the outside of the temperature control device 1 from the first discharge opening 6KA facing the blower fan. This allows the air taken in from the first intake opening 7KA to efficiently come into contact with the heat sink 11 for heat exchange and be discharged from the first discharge opening 6KA. Therefore, the air stagnating in the internal space 2S of the temperature control device 1 can be efficiently discharged to the outside of the temperature control device 1, thereby increasing the temperature control efficiency of the temperature control device 1.

[0090] In the temperature control device 1 according to the first embodiment, the blower fan 20 includes a first blower fan 20A and a second blower fan 20B. The first blower fan 20A is adjacent to the first heat sink 11A, and the second blower fan 20B is adjacent to the second heat sink 11B. The intake opening includes a first intake opening 7KA facing the first blower fan and a second intake opening 7KB facing the second blower fan. The exhaust opening includes a first exhaust opening 6KA facing the first blower fan 20A and a second exhaust opening 6KB facing the second blower fan 20B.

[0091] According to the temperature control device 1 of the first embodiment, air taken in from the first intake opening 7KA is sent to the first heat sink 11A by the first blower fan 20A facing the first intake opening 7KA. When the air comes into contact with the first heat sink 11A, heat exchange takes place and the air is discharged to the outside of the temperature control device 1 from the first exhaust opening 6KA facing the first blower fan 20A. Air taken in from the second intake opening 7KB is sent to the second heat sink 11B by the second blower fan 20B facing the second intake opening 7KB. When the air comes into contact with the second heat sink 11B, heat exchange takes place and the air is discharged to the outside of the temperature control device 1 from the second exhaust opening 6KB facing the second blower fan 20B. This allows the air taken in from the first intake opening 7KA and the second intake opening 7KB to be brought into contact with the respective heat sinks 11 by the blower fans 20 facing each intake opening, enabling efficient heat exchange. As a result, the heat transferred to the first heat sink 11A and the second heat sink 11B is prevented from accumulating and can be efficiently discharged to the outside of the temperature control device 1, thereby increasing the temperature control efficiency of the temperature control device 1.

[0092] In the temperature control device 1 according to the first embodiment, the heat sink 11 has a plurality of heat dissipation fins 12 arranged in a row, and the heat dissipation fins 12 have through holes 14 through which the heat transfer member 13 is inserted, and the peripheral edge 15 of the through hole 14 is formed to extend to the through hole 14 of the adjacent heat dissipation fin 12.

[0093] According to the temperature control device 1 of the first embodiment, the peripheral edges 15 of the insertion holes 14 of the multiple heat dissipation fins 12 extend to the insertion holes 14 of other heat dissipation fins 12 adjacent to the heat dissipation fin 12, thereby increasing the contact area of ​​the heat transfer member 13 inserted into the heat dissipation fins 12. As a result, heat can be efficiently transferred from the heat transfer member 13 to the heat sink 11, allowing the heat sink 11 to perform heat exchange more efficiently.

[0094] In the temperature control device 1 according to the first embodiment, a shock-absorbing member 16 is provided between the heat transfer unit 3 and the heat sink 11.

[0095] According to the temperature control device 1 of the first embodiment, the shock-absorbing member 16 provided between the heat transfer unit 3 and the heat sink 11 absorbs the pressure applied to the heat transfer unit 3 from outside the temperature control device 1. This prevents the heat sink 11 from being damaged by the pressure applied to the heat transfer unit 3 from outside the temperature control device 1.

[0096] Although the present disclosure has been described above in reference to embodiments, the present disclosure is not limited to the above embodiments and can be modified and applied as appropriate without departing from its essence. Of course, the configurations of the first embodiment and the modified examples below may be combined as appropriate. The technical features of the first embodiment and the modified examples below can be deleted as appropriate unless they are described as essential in this specification.

[0097] In the first embodiment described above, the number of Peltier elements 8 provided in the internal space 2S of the temperature control device 1 was one. However, it is not limited to this. The number, position, and arrangement of Peltier elements provided in the internal space 2S of the temperature control device 1 can be appropriately changed according to the product specifications, such as the intended use of the temperature control device (product) according to this disclosure.

[0098] In the first embodiment described above, the number of heat sinks 11 provided in the internal space 2S of the temperature control device 1 was two. However, it is not limited to this. The number, position, and arrangement of heat sinks provided in the internal space 2S of the temperature control device 1 can be appropriately changed according to the product specifications, such as the intended use of the temperature control device (product) according to this disclosure.

[0099] In the first embodiment described above, the number of heat transfer members 13 provided in the internal space 2S of the temperature control device 1 was four. However, it is not limited to this. The number, position, and arrangement of the heat transfer members 13 provided in the internal space 2S of the temperature control device 1 can be appropriately changed according to the product specifications, such as the intended use of the temperature control device (product) according to this disclosure.

[0100] In the first embodiment described above, the number of blower fans 20 provided in the internal space 2S of the temperature control device 1 was two. However, it is not limited to this. The number, placement, and arrangement of the blower fans 20 provided in the internal space 2S of the temperature control device 1 can be appropriately changed according to the product specifications, such as the intended use of the temperature control device (product) according to this disclosure.

[0101] In the temperature control device 1 according to the first embodiment described above, the first intake opening 7KA faced the first blower fan 20A. However, it is not limited to this. For example, in the temperature control device 1, the first intake opening 7KA and the first blower fan 20A may not face each other.

[0102] In the temperature control device 1 according to the first embodiment described above, the second intake opening 7KB faced the second blower fan 20B. However, it is not limited to this. For example, in the temperature control device 1, the second intake opening 7KB and the second blower fan 20B may not face each other.

[0103] In the temperature control device 1 according to the first embodiment described above, the first discharge opening 6KA faced the first blower fan 20A. However, it is not limited to this. For example, in the temperature control device 1, the first discharge opening 6KA and the first blower fan 20A may not face each other.

[0104] In the temperature control device 1 according to the first embodiment described above, the second discharge opening 6KB faced the second blower fan 20B. However, it is not limited to this. For example, in the temperature control device 1, the second discharge opening 6KB and the second blower fan 20B may not face each other.

[0105] In the internal space 2S of the temperature control device 1 according to the first embodiment described above, as shown in Figure 5, the Peltier element 8, the first heat dissipation unit 9, and the second heat dissipation unit 10 were arranged in a horizontal row between the first heat sink 11A and the second heat sink 11B. However, the invention is not limited to this. For example, in the internal space 2S, the Peltier element 8, the first heat dissipation unit 9, and the second heat dissipation unit 10 may be arranged in a vertical row between the first heat sink 11A and the second heat sink 11B. For example, in the internal space 2S, the Peltier element 8, the first heat dissipation unit 9, and the second heat dissipation unit 10 may be arranged in an upper and lower row between the first heat sink 11A and the second heat sink 11B. For example, in the internal space 2S, the Peltier element 8, the first heat dissipation unit 9, and the second heat dissipation unit 10 may be arranged in a diagonal row between the first heat sink 11A and the second heat sink 11B.

[0106] In the internal space 2S of the temperature control device 1 according to the first embodiment described above, the first heat sink 11A and the second heat sink 11B were arranged symmetrically on either side of the virtual center line AX. However, the invention is not limited to this. For example, in the internal space 2S, the first heat sink 11A and the second heat sink 11B do not need to be arranged symmetrically on either side of the virtual center line AX. In this case, for example, even if the first heat sink 11A and the second heat sink 11B are not arranged symmetrically on either side of the virtual center line AX in the internal space 2S, and there is a slight misalignment, the impact on the temperature control efficiency of the temperature control device 1 is minimal.

[0107] In the first embodiment described above, the blower fan 20 was adjacent to the heat sink 11, but this is not the only option. As long as the blower fan 20 can blow air into or draw air into the heat sink 11, the distance between the blower fan 20 and the heat sink 11 does not matter.

[0108] The blower fan 20 according to the first embodiment described above was configured to rotate the propeller 21 to take in air from outside the temperature control device 1 and send the air into the temperature control device 1. However, it is not limited to this. For example, the blower fan 20 may be configured to rotate the propeller 21 to take in air from inside the temperature control device 1 and discharge the air to the outside of the temperature control device 1.

[0109] In the first embodiment described above, a first intake opening 7KA and a second intake opening 7KB were formed on the rear portion 7, and a first discharge opening 6KA and a second discharge opening 6KB were formed on the front portion 6. However, the invention is not limited to this. For example, a first discharge opening and a second discharge opening may be formed on the rear portion, and a first intake opening and a second intake opening may be formed on the front portion, allowing outside air to be taken in from the front portion and discharged from the rear portion. For example, a first discharge opening may be formed on the left portion 5L, a second discharge opening on the right portion 5R, and a first intake opening and a second intake opening may be formed on either the rear portion or the front portion. For example, a first intake opening may be formed on the left portion 5L, a second intake opening on the right portion 5R, and a first discharge opening and a second discharge opening may be formed on either the rear portion or the front portion. In this case, in order to discharge air to the outside of the temperature control device 1, it is necessary to appropriately change the arrangement of the Peltier element 8, the first heat dissipation section 9, the second heat dissipation section 10, and the heat sink 11 in the internal space 2S of the temperature control device 1.

[0110] In the first embodiment described above, the first blower fan 20A was adjacent to the first heatsink 11A, and the second blower fan 20B was adjacent to the second heatsink 11B. However, it is not limited to this. For example, at least one of the first blower fan 20A and the second blower fan 20B may be adjacent to the heatsink 11.

[0111] In the first embodiment described above, the shape of the first intake opening 7KA was rectangular when viewed from the rear portion 7. However, it is not limited to this. For example, the shape, position, arrangement, etc., of the first intake opening 7KA in the temperature control device can be appropriately changed according to the specifications of the product, such as the intended use of the temperature control device (product) according to this disclosure.

[0112] In the first embodiment described above, the shape of the second intake opening 7KB was rectangular when viewed from the rear portion 7. However, it is not limited to this. For example, the shape, position, arrangement, etc., of the second intake opening 7KB in the temperature control device can be appropriately changed according to the specifications of the product, such as the intended use of the temperature control device (product) according to this disclosure.

[0113] In the first embodiment described above, the shape of the first discharge opening 6KA was rectangular when viewed from the front 6. However, it is not limited to this. For example, the shape, position, arrangement, etc., of the first discharge opening 6KA in the temperature control device can be appropriately changed according to the specifications of the product, such as the intended use of the temperature control device (product) according to this disclosure.

[0114] In the first embodiment described above, the shape of the second discharge opening 6KB was rectangular when viewed from the front 6. However, it is not limited to this. For example, the shape, position, arrangement, etc., of the second discharge opening 6KB in the temperature control device can be appropriately changed according to the specifications of the product, such as the intended use of the temperature control device (product) according to this disclosure.

[0115] In the first embodiment described above, the number of through holes 14 in one heat dissipation fin 12 was four, corresponding to the number of heat transfer members 13. However, it is not limited to this. For example, the number of through holes 14 in one heat dissipation fin 12 may be appropriately changed according to the number of heat transfer members 13 provided in the internal space 2S of the temperature control device 1. However, if the number of heat transfer members 13 is too large, the weight of the temperature control device 1 will increase, while if the number of heat transfer members 13 is too small, the amount of heat transferred from the heat transfer members 13 to the heat sink 11 will decrease.

[0116] In the first embodiment described above, in order to increase the contact area between the insertion hole 14 and the heat transfer member 13, the peripheral edge 15 of the insertion hole 14 and the heat transfer member 13 were in close contact via a grease layer (not shown). However, the invention is not limited to this. For example, the contact area between the peripheral edge 15 of the insertion hole 14 and the heat transfer member 13 may be welded (for example, brazed). This prevents the heat transfer member 13 from detaching from the heat dissipation fin 12 by welding the contact area between the peripheral edge 15 of the insertion hole 14 and the heat transfer member 13.

[0117] In the internal space 2S of the temperature control device 1 according to the first embodiment described above, one shock-absorbing member 16 was provided between the heat transfer unit 3 and the heat sink 11. However, the invention is not limited to this. For example, the number, position, and arrangement of the shock-absorbing members 16 provided in the internal space 2S of the temperature control device 1 can be appropriately changed according to the specifications of the product, such as the intended use of the temperature control device (product) according to this disclosure.

[0118] In the temperature control device 1 of the first embodiment described above, when the surface 3A of the heat transfer unit 3 is used as a heating surface that provides warmth to the body of a person or pet, the blower fan 20 operates while the Peltier element 8 is energized. However, it is not limited to this. For example, when the surface 3A of the heat transfer unit 3 is used as a heating surface that provides warmth to the body of a person or pet, the blower fan 20 does not need to operate while the Peltier element 8 is energized.

[0119] In the first embodiment described above, the power from the mobile battery was supplied to the Peltier element 8, the motor 22 of the first blower fan 20A, and the motor 22 of the second blower fan 20B through the wiring by connecting the main wiring to the mobile battery. However, the configuration is not limited to this. The temperature control device 1 may also be configured to include, for example, a primary battery and a secondary battery inside, and power may be supplied to the Peltier element 8, the motor 22 of the first blower fan 20A, and the motor 22 of the second blower fan 20B by the primary battery and the secondary battery. In this case, a rechargeable battery such as a lithium-ion battery may be used as the primary battery and secondary battery. This makes it possible to avoid the wiring getting in the way when using the temperature control device 1.

[0120] The operation unit 50 according to the first embodiment described above includes the ability to turn the Peltier element 8 on and off, and to turn the blower fan 20, which is linked to the Peltier element 8, on and off. However, it is not limited to this. For example, the operation unit 50 may continue to supply power to the Peltier element 8 and the blower fan 20 for a certain period of time (for example, 2 hours), and when the time is up, it may automatically cut off the power supply and switch the operation of the Peltier element 8 and the blower fan 20 to the off state. The function of automatically cutting off the power supply and switching the operation of the Peltier element 8 and the blower fan 20 to the off state is called the stop timer function. By having the stop timer function in the operation unit 50, it is possible to prevent the Peltier element 8 from consuming unnecessary power due to the Peltier element 8 being powered on for a long period of time even though the user of the temperature control device 1 does not need to power the Peltier element 8. Furthermore, the temperature control device 1, which is equipped with a stop timer function, can save energy, and when power is supplied by a storage battery or the like, the electricity stored in the storage battery can be used for a longer period of time.

[0121] The operation unit 50 according to the first embodiment includes the ability to turn the Peltier element 8 on and off, and the ability to turn the blower fan 20, which is linked to the Peltier element 8, on and off. However, it is not limited to this. For example, the operation unit 50 may start supplying power to the Peltier element 8 and switch it to the ON state when the Peltier element 8 has been in the OFF state for a certain period of time (for example, 3 hours). The function of starting to supply power to the Peltier element 8 and switching it to the ON state is called the start timer function. By including the start timer function in the operation unit 50, the user of the temperature control device 1 can use the temperature control device 1 at the time when it is necessary to supply power to the Peltier element 8, even if it is difficult for the user to operate the operation unit 50.

[0122] The first embodiment of the temperature control device 1 has been described in two ways: one is to install the temperature control device 1 inside a pillow PL, and the other is to install the temperature control device 1 inside a pet bed BT, which is another way of installing the temperature control device 1. However, the invention is not limited to these. The temperature control device 1 may also be installed inside a stroller, a cushion, furniture (for example, a cushion on a chair), or a pet cart. Installing the temperature control device 1 inside a stroller, for example, can be used to combat extreme heat during the summer.

[0123] The specifications of the temperature control device 1, including its shape, the structure of its components, and the arrangement of its components, are not limited to the first embodiment and can be modified as appropriate.

[0124] The rear portion 7 in the first embodiment described above was not structured to separate the first intake opening 7KA and the second intake opening 7KB. However, it is not limited to this. For example, the rear portion 7 may have a structure that separates the first intake opening 7KA and the second intake opening 7KB in a grid pattern, and this structure can prevent foreign matter from entering the temperature control device 1 from the outside.

[0125] The front portion 6 in the first embodiment described above was not structured to separate the first discharge opening 6KA and the second discharge opening 6KB. However, it is not limited to this. For example, the front portion 6 may have a structure that separates the first discharge opening 6KA and the second discharge opening 6KB in a grid pattern, and this structure can prevent foreign matter from entering the temperature control device 1 from the outside.

[0126] As is clear from the above explanation, the temperature control device according to this disclosure provides an excellent effect of providing a temperature control device that can improve temperature control efficiency by increasing the heat exchange rate of the heat sink.

[0127] 1 Temperature control device 2 Housing 2S Internal space 3 Heat transfer section 3A Heat transfer surface 3B Back surface 4 Bottom 5 Pair of side sections 5L Left side 5R Right side 6 Front section 6KA First discharge opening 6KB Second discharge opening 7 Rear section 7KA First intake opening 7KB Second intake opening 8 Peltier element 8A One side 8B Other side 9 First heat dissipation section 10 Second heat dissipation section 11 Heat sink 11A First heat sink 11B Second heat sink 12 Heat dissipation fins 13 Heat transfer member 13A Recessed section 14 Through hole 15 Peripheral edge 16 Buffer absorption member 20 Blower fan 20A First blower fan 20B Second blower fan 21 Propeller 22 Motor 50 Operating unit 51 Control unit 52 Control panel 53 Display panel HM User BT Pet bed PT Pet PL Pillow

Claims

1. A temperature control device having a Peltier element and including a heat transfer section that transfers heat absorbed or generated on one side of the Peltier element, wherein the temperature control device has a structure formed from the heat transfer section, a bottom section opposite to the heat transfer section and facing the heat transfer section, a front section, a back section facing the front section, and a pair of opposing side sections, and has an intake opening for taking air into the inside of the temperature control device and an exhaust opening for discharging air to the outside of the temperature control device, and inside the temperature control device is provided a heat dissipation section provided on the other side of the Peltier element, a plurality of heat sinks for releasing heat transferred from the heat dissipation section, a fan for blowing air, and a heat transfer member for transferring heat transferred from the heat dissipation section to a first heat sink and a second heat sink, and the heat dissipation section is a temperature control device disposed between the location where the first heat sink is disposed and the location where the second heat sink is disposed.

2. A temperature control device according to claim 1, wherein the Peltier element and the heat dissipation section are arranged perpendicularly to a virtual center line extending through the center of the heat transfer section, and the first heat sink and the second heat sink are arranged symmetrically on either side of the virtual center line when viewed from the front.

3. A temperature control device according to claim 1, wherein the blower fan is adjacent to the heat sink, the rear portion has an intake opening facing the blower fan, and the front portion has an exhaust opening facing the blower fan.

4. A temperature control device according to claim 3, wherein the blower fan comprises a first blower fan and a second blower fan, the first blower fan is adjacent to the first heat sink, the second blower fan is adjacent to the second heat sink, the intake opening comprises a first intake opening facing the first blower fan and a second intake opening facing the second blower fan, and the exhaust opening comprises a first exhaust opening facing the first blower fan and a second exhaust opening facing the second blower fan.

5. A temperature control device according to any one of claims 1 to 4, wherein the heat sink has a plurality of heat dissipation fins arranged in a row, the heat dissipation fins have through holes through which the heat transfer member is inserted, and the peripheral edge of the through hole is formed to extend toward the insertion hole of the adjacent heat dissipation fin.

6. A temperature control device according to any one of claims 1 to 4, wherein a shock-absorbing member is provided between the heat transfer unit and the heat sink.

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