Blower, blower for clothes
The blower design efficiently exhausts heat from Peltier elements using a motor, impeller, and chamber configuration to maintain cooling efficiency and prevent temperature rise in clothing.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ASAHI ELECTRIC CO LTD
- Filing Date
- 2024-10-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing blowers fail to effectively exhaust heat generated by Peltier elements, leading to decreased cooling efficiency and increased temperature inside clothing during high-temperature environments.
A blower design comprising a motor, impeller, outer shell, and Peltier unit, with an air intake, air outlet, peripheral wall, and small chamber, which directs airflow to exhaust heat generated by the Peltier element through a chamber and exhaust port, utilizing cooling fins and a heat conductive plate for efficient heat dissipation.
Effectively exhausts heat generated by the Peltier element, maintaining cooling efficiency and preventing heat buildup inside the clothing.
Smart Images

Figure 2026079336000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a blower for supplying outside air into a clothing body and imparting the cold and heat generated on the cold and heat generating surface of a Peltier unit to a wearer, and a clothing with a blower provided with the blower.
Background Art
[0002] In order to alleviate the occurrence of heat stroke and the like at work sites in high-temperature environments and during summer leisure, etc., "clothing with a blower (cooling clothing)" that can supply outside air into the clothing has been put into practical use.
[0003] Recently, clothing with a blower that supplies outside air into the clothing and imparts the cold and heat generated by a Peltier element to the wearer has also been developed (for example, see Patent Document 1 below).
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] Here, while cold and heat are generated on the cold and heat generating surface of the Peltier element, heat is generated on the surface opposite to the cold and heat generating surface, and if the generated heat is not effectively exhausted, the cold and heat generating efficiency on the cold and heat generating surface decreases.
[0006] Regarding this point, in Patent Document 1, the fan guard portion existing on the blower outlet side is made of a metal with good thermal conductivity, and the fan guard portion is made to function as a heat sink for heat dissipation of the Peltier element, thereby enhancing the heat dissipation efficiency.
[0007] However, in the middle of summer or in high-temperature work environments, air cooling from the hot outside air may not be sufficient to cool the Peltier element. As a result, the heat generated by the Peltier element enters the clothing along with the hot outside air, which can actually increase the temperature inside the clothing.
[0008] The present invention was developed in view of the above-mentioned technical problems, and aims to provide a novel blower that can effectively exhaust the heat generated in a Peltier element, and a garment equipped with the blower. [Means for solving the problem]
[0009] The blower of the present invention, which solves the aforementioned technical problems, comprises a motor, an impeller that rotates in accordance with the rotation of the motor, an outer shell surrounding the motor and the impeller, and a Peltier unit equipped with a Peltier element, and is attached to a mounting hole provided in the garment body to blow outside air into the garment body while simultaneously providing the wearer with the cool air generated from the Peltier unit, wherein the outer shell has an air intake port for guiding outside air into the outer shell in accordance with the rotation of the impeller, and an outer shell that is guided into the outer shell The invention comprises an air outlet for blowing air into the garment body, a peripheral wall that supports the air intake and the air outlet at a certain distance apart, and a small chamber for housing the Peltier unit, wherein the small chamber is provided with an air inlet for introducing a portion of the outside air guided into the outer shell into the small chamber through the peripheral wall, and an air exhaust port for exhausting the outside air introduced into the small chamber through the bottom of the small chamber (hereinafter referred to as the "inventive blower").
[0010] In the blower of the present invention, it is preferable that the air exhaust port is provided along the corner formed between the bottom of the small chamber and the peripheral wall.
[0011] In the blower of the present invention, it is preferable that the heat conductive plate in contact with the cold / heat generating surface of the Peltier unit and the air outlet of the outer shell are integrally formed from metal.
[0012] In the blower of the present invention, a preferred embodiment is one in which cooling fins are provided on the side opposite to the heat-generating surface of the Peltier unit.
[0013] In the blower of the present invention, a preferred embodiment is one in which a part of the cooling fins protrudes into the outer shell through the air intake hole.
[0014] The garment with a fan of the present invention, which solves the aforementioned technical problems, is characterized by comprising the fan of the present invention and a garment body (hereinafter referred to as "the garment of the present invention").
[0015] In the garment of the present invention, a preferred embodiment is one in which a mesh material is arranged along the periphery of the mounting hole provided in the garment body.
[0016] In the garment of the present invention, a preferred embodiment is one in which openings are provided at one or more locations on the periphery of the mounting holes provided in the garment body. [Effects of the Invention]
[0017] According to the present invention, the heat generated in the Peltier element can be effectively exhausted. [Brief explanation of the drawing]
[0018] [Figure 1] Figure 1 is an exploded perspective view showing one embodiment of the blower of the present invention. [Figure 2] Figure 2 shows a perspective view (a) and a cross-sectional view (b) of the circumferential wall and a small chamber attached to the circumferential wall of the blower of the present invention in a partially broken state. [Figure 3] Figure 3 is a perspective view showing the blower of the present invention with a battery attached via a cable. [Figure 4] Figure 4 shows a front view (a) and a cross-sectional view (b) of an embodiment of the garment of the present invention in which the blower of the present invention is attached to the garment body. [Figure 5]FIG. 5 is a cross-sectional view showing the air flow when the blower of the present invention is operated. [Figure 6] FIG. 6 is an exploded perspective view showing another embodiment of the blower of the present invention. [Figure 7] FIG. 7 is a front view (a) and a cross-sectional view (b) showing another embodiment of the clothing of the present invention. [Figure 8] FIG. 8 is a front view (a) and a cross-sectional view (b) showing still another embodiment of the clothing of the present invention.
MODE FOR CARRYING OUT THE INVENTION
[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.
[0020] <The blower 1 of the present invention> FIG. 1 shows the blower ① of the present invention according to Embodiment ❶. The blower 1 of the present invention includes a "motor (2)", an "impeller (3)", a "housing (4)", and a "Peltier unit (5)".
[0021] -Motor 2- The motor 2 means a mechanical element that outputs a rotational motion by using the force generated by the Lorentz force (interaction between a magnetic field and an electric current). In the present embodiment, a commercially available electric motor for models was used as the motor 2.
[0022] -Impeller 3- The impeller 3 rotates in response to the rotation of the motor 2 and plays a role of generating a flow of air in a certain direction. In the present embodiment, as the impeller 3, a seven-blade rotor having seven waraji-shaped blades radially arranged around a boss was used.
[0023] -Housing 4- Note: In the translation of the text, for the sake of clarity, the numbers in the original text such as ❶ and ① are retained in the translation. In actual patent text translation, it is necessary to ensure that the translation conforms to the relevant regulations and requirements of patent translation, and accurately convey the technical content and meaning of the original text.The outer shell 4 plays a role in ensuring the safety of the blower 1 of the present invention during use by surrounding the motor 2 and the impeller 3. Since the outer shell 4 needs to be structured to allow the airflow generated by the rotation of the impeller 3 to pass through, it is equipped with an "intake port (41)" and an "outlet port (42)". The outer shell 4 is further equipped with a "circumferential wall (43)" and a "small chamber (44)" attached to the circumferential wall 43. For the sake of explanation, the upstream side of the airflow from the intake port 41 to the outlet port 42 of the outer shell 4 will be referred to as the "primary side", and the downstream side as the "secondary side".
[0024] • Air intake port 41 The intake port 41 plays the role of introducing outside air into the outer shell 4 in accordance with the rotation of the impeller 3. In other words, the intake port 41 is the inlet for outside air. In this embodiment, the intake port 41 is constructed as a resin molded product in which a disc-shaped intake port body 411 having multiple openings, a flange portion 412 protruding around the intake port body 411, and a hollow cylindrical male screw portion 413 protruding toward the secondary side are integrally formed. The flange portion 412 is provided with multiple spacers 414 protruding toward the secondary side.
[0025] • Air outlet 42 The air outlet 42 plays the role of sequentially sending outside air introduced into the outer shell 4 to the outside of the outer shell 4. In other words, the air outlet 42 is the outlet for outside air. In this embodiment, the air outlet 42 is constructed as a disc-shaped resin molded product having multiple openings.
[0026] ·Peripheral wall 43 The peripheral wall 43 plays the role of supporting the air intake port 41 and the air outlet port 42 at a constant distance from each other. In this embodiment, the peripheral wall 43 is constructed as a resin molded product in which a cylindrical peripheral wall body 431, a motor holding portion 433 supported in the center of the peripheral wall body 431 by a plurality of support rods 432, and a flange portion 434 that protrudes around the primary side opening end of the peripheral wall body 431 are integrally formed. The motor holding portion 433 is designed to allow the motor 2 to be inserted and positioned.
[0027] Komuro 44 The small chamber 44 serves as a housing for the Peltier unit 5. In this embodiment, the small chamber 44 is constructed as a resin molded product integrally formed with the peripheral wall 43. As shown in Figure 2, the small chamber 44 is provided with an air inlet 441 that communicates with the inside of the outer shell 4 through the peripheral wall 43, and an air exhaust port 442 that communicates with the outside through the bottom of the small chamber 44. In this embodiment, the air inlet 441 is constructed by providing a notch in the part of the small chamber 44 that is in contact with the peripheral wall 43, while the air exhaust port 442 is constructed by providing a slit in the corner between the bottom of the small chamber 44 and the peripheral wall 43. In this invention, "bottom of the small chamber (44)" means the partition wall located on the side of the small chamber 44 that is facing the primary side.
[0028] -Peltier Unit 5- The Peltier unit 5 is an electronic unit having a Peltier element 51, which is a thermoelectric element that utilizes the Peltier effect. In this embodiment, the Peltier unit 5 is constructed comprising a Peltier element 51, a heat conductive plate 52 that contacts and fixes to the cold / heat generating surface side of the Peltier element 51, and a cooling fin 53 that contacts and fixes to the opposite side of the cold / heat generating surface of the Peltier element 51. In this embodiment, the Peltier unit 5 is placed inside the small chamber 44 with the cold / heat generating surface of the Peltier element 51 facing the secondary side of the outer shell 4, and the open end on the secondary side of the small chamber 44 is closed by the heat conductive plate 52.
[0029] As shown in Figure 3, the blower 1 of the present invention is constructed by housing the Peltier unit 5 in the small chamber 44, attaching the air outlet 42 to the secondary side of the peripheral wall 43, and screwing the air intake port 41 to the primary side of the peripheral wall 43. At this time, the primary side surface of the flange portion 434 of the peripheral wall 43 and the secondary side surface of the flange portion 412 of the air intake port 41 face each other. However, the flange portions (434, 412) do not come into surface contact due to the spacer 414 provided on the flange portion 412 of the air intake port 41. Furthermore, the power to operate the motor 2 and Peltier element 51 in the blower 1 of the present invention is supplied by power stored in a battery (B) through a cable (C).
[0030] <Inventive clothing 10> Figure 4 shows the garment 10 of the present invention equipped with the blower 1 of the present invention. The garment 10 of the present invention has the blower 1 of the present invention attached to the garment body (W). In this embodiment, mounting holes (H) are provided at multiple locations (two locations) of the garment body (W), and the blower 1 of the present invention is attached to the garment body (W) by sandwiching the periphery of each mounting hole (H) between the flange portion 434 of the peripheral wall 43 and the flange portion 412 of the intake port 41.
[0031] As shown in Figure 5, the garment 10 of the present invention rotates the impeller 3 of the blower 1 of the present invention, generating an airflow from the outside to the inside of the garment body (W), thereby sending outside air into the garment body (W) and cooling the inside of the garment body (W). At the same time, the cold generated on the cold-heat generating surface of the Peltier element 51 is transferred to the wearer via the heat-conducting plate 52.
[0032] In this process, heat is generated on the side of the Peltier element 51 opposite to the cold-generating surface, and if this heat is not efficiently dissipated, the cold-generating efficiency on the cold-generating surface will decrease.
[0033] In this regard, in the garment 10 of the present invention equipped with the blower 1 of the present invention, a portion of the airflow generated by the rotation of the impeller 3 is directed into the small chamber 44 through the air inlet 441 provided in the small chamber 44, and after removing heat from the cooling fins 53 to which the heat of the Peltier element 51 has been transferred, it is discharged through the air exhaust port 442 toward the periphery of the mounting hole (H) of the garment body (W). In other words, in the garment 10 of the present invention equipped with the blower 1 of the present invention, the heat generated in the Peltier element 51 is sequentially exhausted to the outside of the garment body (W) through the gap at the periphery of the mounting hole (H) or through the fiber mesh of the garment body (W), so that the cooling efficiency of the Peltier element 51 can be maintained.
[0034] By the way, in this embodiment, a commercially available model electric motor is used as motor 2, but the size and type of motor 2 are not particularly limited in this invention.
[0035] Furthermore, in this embodiment, a seven-blade rotor is used as the impeller 3, but the shape and number of blades of the impeller 3 are not particularly limited in this invention.
[0036] Furthermore, in this embodiment, the outer shell 4 consists of an air intake 41, an air outlet 42, and a peripheral wall 43, which are formed as separate resin molded products. However, each part may be formed integrally as appropriate.
[0037] Furthermore, in this embodiment, when the intake port 41 is screwed into the peripheral wall 43, the flange portion 434 of the peripheral wall 43 and the flange portion 412 of the intake port 41 are prevented from surface contact by the spacer 414. However, the spacer 414 is not an essential component of the present invention. Nevertheless, if a certain distance is ensured between each flange portion (434, 412) by the spacer 414, the exhaust of the heat generated in the Peltier element 51 becomes more efficient.
[0038] In addition, in this embodiment, a heat conduction plate 52 is provided on the heat-generating surface of the Peltier element 51, and cooling fins 53 are provided on the opposite surface. However, the heat conduction plate 52 and cooling fins 53 are not essential components of the present invention. However, providing the heat conduction plate 52 on the heat-generating surface of the Peltier element 51 has the advantage of protecting the surface of the Peltier element 51, and providing the cooling fins 53 has the advantage of making the exhaust of the heat generated in the Peltier element 51 more efficient.
[0039] Furthermore, in this embodiment, the cooling fins 53 provided on the Peltier unit 5 are sized so that a portion of them protrudes into the outer shell 4 through the air inlet 441 (see Figure 5). This arrangement has the advantage of making the exhaust of the heat generated in the Peltier element 51 even more efficient.
[0040] Furthermore, in this embodiment, the heat conductive plate 52 and the air outlet 42 provided on the Peltier unit 5 are separate components. However, as shown in Figure 6, if the heat conductive plate 52 and the air outlet 42 are integrally formed from metal, the cold generated from the Peltier element 51 is transferred to the air outlet 42, resulting in the effect of cooling the airflow generated by the rotation of the impeller 3.
[0041] In this embodiment, the air inlet 441 is constructed by providing a notch in the portion of the small chamber 44 that is in contact with the peripheral wall 43, while the air exhaust port 442 is constructed by providing a slit in the corner between the bottom of the small chamber 44 and the peripheral wall 43. However, the air inlet 441 may also be constructed by providing a through hole in the portion of the small chamber 44 that is in contact with the peripheral wall 43. On the other hand, the air exhaust port 442 may also be constructed by providing a through hole in the bottom of the small chamber 44.
[0042] However, it has been confirmed that if the air exhaust port 442 is provided along the corner formed by the bottom of the small chamber 44 and the peripheral wall 43, as in this embodiment, the heat generated in the Peltier element 51 can be quickly exhausted through the gap around the mounting hole (H).
[0043] Furthermore, in this embodiment, the garment 10 of the present invention is constructed by attaching the blower 1 of the present invention to the garment body (W) using a mounting hole (H) provided in the garment body (W). However, as shown in Figures 7 and 8, it has been confirmed that if a mesh material (M) is placed along the periphery of the mounting hole (H), or if openings (O) are provided at one or more locations around the periphery of the mounting hole (H), the heat generated in the Peltier element 51 can be exhausted even more quickly through the mesh material (M) or the openings (O).
[0044] Furthermore, the present invention can be implemented in various other forms without departing from its spirit or main features. Therefore, the embodiments described above are merely illustrative in all respects and should not be interpreted restrictively. The scope of the present invention is defined by the claims and is not restricted in any way by the text of the specification. Moreover, any modifications or changes falling within the equivalent scope of the claims are all within the scope of the present invention. [Industrial applicability]
[0045] The present invention is suitably used as a means of cooling the inside of a garment by supplying outside air into the garment. [Explanation of Symbols]
[0046] 1. The present invention (blower) 2 motors 3-Paddle Wheel 4 Outer shell 41 Air intake 414 Spacer 42 Air outlet 43 Peripheral wall 44 Komuro 441 Air Inlet 442 Air exhaust port 5 Peltier units 51 Peltier element 52 Heat Conduction Plate 53 Cooling Fins 10 Clothing of the present invention (clothing with a blower) W Clothing Body H Mounting Hole M Mesh material O opening
Claims
1. A blower comprising a motor, an impeller that rotates in accordance with the rotation of the motor, an outer shell surrounding the motor and the impeller, and a Peltier unit equipped with a Peltier element, which is attached to a mounting hole provided in the garment body and blows outside air into the garment body while simultaneously providing the wearer with the cool air generated by the Peltier unit, The aforementioned outer shell, An air intake port for guiding outside air into the outer shell in accordance with the rotation of the impeller, An air outlet for blowing outside air into the garment body, A peripheral wall that supports the air intake and the air outlet at a certain distance apart, A small chamber for housing the Peltier unit, which is attached to the peripheral wall, It is equipped with, The aforementioned small room contains, An air inlet for introducing a portion of the outside air guided into the outer shell into the small chamber through the peripheral wall, An air exhaust port for exhausting outside air introduced into the small chamber through the bottom of the small chamber, A blower characterized by being provided with
2. In the blower according to claim 1, A blower in which the air exhaust port is provided along the corner formed by the bottom of the small chamber and the peripheral wall.
3. In the blower according to claim 1, A blower in which a heat conductive plate in contact with the heat-generating surface of the Peltier unit and the air outlet of the outer shell are integrally formed from metal.
4. In the blower according to claim 1, A blower having cooling fins on the side opposite to the heat-generating surface of the Peltier unit.
5. In the blower according to claim 4, A blower in which a portion of the cooling fins protrudes into the outer shell through the air intake holes.
6. A blower according to any one of claims 1 to 5, The garment itself, A garment equipped with a fan, characterized by comprising the following features.
7. In the garment with a fan according to claim 6, A garment with a fan, wherein a mesh material is arranged along the periphery of the mounting holes provided in the garment body.
8. In the garment with a fan according to claim 6, A garment with a blower, wherein openings are provided at one or more locations around the periphery of the mounting holes provided in the garment body.