JP6419999B1 - Intake device - Google Patents

Abstract

An object of the present invention is to improve the straightness of fluid intake on the intake surface of an intake device.
An air intake device 10 is a cylindrical structure having a hollow portion 101 formed therein, and an end surface 102 having an air intake port 103 is formed at a first end portion of the hollow portion 101, and an exhaust port is provided. 104 is formed at the second end opposite to the first end of the hollow portion 101, and the opening area of the air inlet 103 is narrower than the cross-sectional area of the vertical section of the hollow portion 101 on the end surface 102. A housing 100 in which a first opening 105 is formed substantially on the same first radius from the axis of the hollow portion 101 independently of the air inlet 103 around the periphery of the air inlet 103; a first end portion; a second end portion; And a control unit 300 that controls the fan unit 200 to intake air from the intake port 103 toward the exhaust port 104. Figure 1

Description

  The present invention relates to an intake device.

  Devices that inhale a gas such as alcohol have been developed. For example, a case body provided with an exhalation inlet for introducing exhaled breath blown by a user, and disposed on the downstream side of the exhalation inlet in the case body, facing the exhalation inlet, and flowed through the exhalation inlet. There is a device that includes a fan that sends the user's exhalation further downstream, and a plurality of sensors that are arranged downstream of the fan in the case body and detect elements in the exhalation of the user sent by the fan ( Patent Document 1).

JP 2011-153906 A

  However, the technique of Patent Document 1 described above (hereinafter, “prior art”) assumes that a gas such as alcohol is blown into the intake device. When the precondition of the prior art is removed, the straightness of the flow of the fluid sucked by the suction device is a problem.

  An object of the present invention is to provide an intake device that contributes to an improvement in the straightness of the flow of fluid sucked by the intake device.

An intake device according to an aspect of the present invention is a cylindrical structure having a hollow portion formed therein, and an end surface having an intake port having a shape without an acute angle is a first end of the hollow portion. And the exhaust port is formed at a second end portion opposite to the first end portion of the hollow portion, and the opening area of the intake port is an axial vertical cross section of the hollow portion. In the outer periphery of the intake port that is narrower than the cross-sectional area and formed in the central portion or substantially central portion of the end surface, and substantially independent of the intake port from the shaft of the hollow portion to the circumference on the first same radius A housing in which a plurality of first slits are formed, a fan portion provided on the second end side of the first end portion and the second end portion, and the intake port And a control unit that controls the fan unit so as to intake air in the direction of the exhaust port.

An intake device according to an aspect of the present invention is a cylindrical structure having a hollow portion formed therein, and an end surface having an intake port having a shape without an acute angle is a first end of the hollow portion. A bottom cover is formed at a second end portion of the hollow portion facing the first end portion, and an exhaust port is formed at an axial side surface of the hollow portion. The opening area of the mouth is smaller than the cross-sectional area of the axially vertical cross section of the hollow portion, and the shaft of the hollow portion is independent of the air inlet at the outer periphery of the air inlet formed at the center or substantially the center of the end surface. A housing having a plurality of slits formed substantially along a circumference on the same first radius, a fan portion provided at the exhaust port, and intake air from the intake port toward the exhaust port In this way, a configuration is provided that includes a control unit that controls the fan unit .

  According to the present invention, it is possible to improve the straightness of the flow of fluid sucked by the suction surface.

The figure which shows an example of sectional drawing of the intake device which concerns on Embodiment 1 of this invention The figure which shows an example of the simplification figure, top view, bottom view, and front view of an intake device which concern on Embodiment 1 of this invention The figure which shows an example of the hole of an opening part The figure which shows an example of the hole of an opening part The figure which shows an example of the hole of an opening part The figure which shows an example of the slit of an opening part The figure which shows an example of the slit of an opening part The figure which shows an example of the slit of an opening part The figure which shows an example of the slit of an opening part The figure which shows an example of the slit of an opening part The figure which shows an example of the flow of the fluid when a fluid is suck | inhaled only by the inlet port The figure which shows an example of the flow of the fluid when the fluid is suck | inhaled by the inlet and the opening part The figure which shows an example of the flow of the fluid inhaled by the opening part The figure which shows an example of the flow of the fluid inhaled by the opening part The figure which shows an example of the flow of the fluid inhaled by the opening part The figure which shows an example in which the hole of an opening part is arrange | positioned unevenly The figure which shows an example of the flow of the fluid inhaled by the opening part 105 in case the hole of an opening part is arrange | positioned unevenly The figure which shows another example of an opening part The figure explaining the modification 1 of this invention The figure explaining the modification 1 of this invention The figure explaining the modification 2 of this invention The figure explaining the modification 3 of this invention The flowchart which shows an example of the flow of operation | movement of the intake device in the modification 3 of this invention The figure which shows an example of the hardware constitutions of the computer which implement | achieves the function of a control part by a program

(Background to inventing one aspect of the present invention)
The prior art assumes that a gas such as alcohol is blown into the intake device. When the alcohol concentration contained in a person's exhalation is a detection target, there are few problems even if it is assumed that gas is blown into the inhaler as in the prior art. However, the precondition of the prior art is a problem when alcohol components contained in foods, liquids, and the like are to be detected. In such a case, it is conceivable to further provide a fan in the configuration of the prior art. However, when a fan for sucking fluid is provided, the fluid is sucked in all directions by the suction device. The inventor of the present invention has come up with the necessity of improving the straightness of the flow of the fluid that is sucked, and has invented one aspect of the present invention. Further, for applications such as a vacuum cleaner, it is useful to improve the straightness of the flow of fluid sucked by the intake surface even when the intake device sucks an object facing the intake surface.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment, configurations having the same functions are denoted by the same reference numerals, and redundant description is omitted.

(Embodiment 1)
The configuration of intake device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2.

  FIG. 1 shows an example of a cross-sectional view of an intake device 10 according to Embodiment 1 of the present invention. FIG. 2 shows an example of a simplified view, a plan view, a bottom view, and a front view of the intake device 10 according to the present embodiment. FIG. 2A shows a simplified diagram of the intake device 10. FIG. 2B is a plan view of the intake device 10. FIG. 2C shows a bottom view of the intake device 10. FIG. 2 (d) shows a front view of the intake device 10.

  The cross-sectional view shown in FIG. 1 is an axial cross-sectional view taken along one-dot chain line L in FIG. In FIG. 2, the control unit 300 is not shown.

  In FIG. 1, the intake device 10 includes a housing 100, a fan unit 200, and a control unit 300. The housing 100 is, for example, a cylindrical structure in which a hollow portion 101 is formed. The hollow portion 101 has a cylindrical shape. The cylindrical vertical cross section in the axial direction may be circular or polygonal. When the cylindrical axial cross section is circular, the hollow portion 101 is cylindrical. The circle may be a perfect circle or an ellipse. The material of the structure is, for example, a synthetic resin or a metal. In the present invention, the material of the structure is not limited.

  When the hollow portion 101 has a cylindrical shape, the turbulent flow of the fluid sucked from the air inlet 103 and the opening 105 is suppressed in the hollow portion 101. This is because the fluid flows along the wall surface, and the generation of turbulence is suppressed on a smooth wall surface such as a circle. For this reason, the shape of the axially vertical cross section of the hollow portion 101 is preferably circular.

  The shape of the axially vertical cross section of the hollow portion 101 may be a polygon. In such a case, the interior angle of the polygon is desirably an obtuse angle. This is because the wider the inner angle, the smoother the wall surface of the hollow portion 101 and the occurrence of turbulent flow in the hollow portion 101 is suppressed.

  The casing 100 may be a cylindrical structure having an air inlet 103 and an air outlet 104, which will be described later, and the external shape is not limited. The external shape of the housing 100 is arbitrarily designed.

  In FIG. 1, the first end E1 and the second end E2 are indicated by broken lines. The first end E1 and the second end E2 are ends at both ends of the hollow portion 101. For example, the first end E1 and the second end E2 face each other.

  In FIG. 1 and FIG. 2, the end surface 102 is formed in the 1st edge part E1, for example. The end face 102 is a structure having a predetermined thickness. In FIG. 1 and FIG. 2, the end face 102 is formed outside the side wall 106, but is not limited thereto. For example, the end face 102 may be formed inside the side wall 106 so that the surface of the end face 102 coincides with the first end E1.

  In FIG. 1, for convenience of explanation, the end face 102 and the side wall 106 are described as separate structures, but this is an example, and the present invention is not limited to this. The end surface 102 may be integrally formed with the side wall 106.

  In FIG. 1 and FIG. 2B, the end face 102 has an air inlet 103 and an opening 105. The intake port 103 is a hole for taking a fluid such as a gas from the outside to the inside of the housing 100. The air inlet 103 is formed at the center or substantially the center of the end face 102. The opening area of the air inlet 103 is smaller than the cross-sectional area of the axially vertical cross section of the hollow portion 101. This is because the opening 105 is formed on the outer periphery of the air inlet 103.

  The shape of the air inlet 103 is, for example, a circle. In FIG. 1 and FIG. 2 (b), the circular center point of the air inlet 103 exists, for example, on the axis of the hollow portion 101. As will be described later, when the shape of the intake port 103 is a circle formed with a point on the axis of the hollow portion 101 as a center point, the fluid sucked from the intake port 103 by driving the fan unit 200 is Generation of turbulent flow in the hollow portion 101 is suppressed. This is because the fluid flows along the wall surface, and turbulence can occur on a non-smooth non-circular wall surface. By suppressing the occurrence of turbulent flow in the hollow portion 101, the straightness of the flow of the fluid sucked from the intake port 103 is improved.

  The shape of the air inlet 103 is a circular shape centered on a point on the axis of the hollow portion 101, and the shape of the air inlet 103 may be a polygon. In such a case, when the interior angle of the polygon is an obtuse angle, the occurrence of turbulent flow is suppressed in the hollow portion 101. Further, when the shape of the intake port 103 is an equilateral polygon, the occurrence of turbulent flow in the hollow portion 101 is suppressed. In such a case, the number of sides of the equilateral polygon is preferably 5 or more, for example. This is because the larger the interior angle of the polygon, the smoother the shape and the less likely to generate turbulence.

  The opening 105 is formed on the end surface 102 around the air inlet 103 independently of the air inlet 103. In the end surface 102, the opening 105 and the intake port 103 are not integrally formed. For example, the opening 105 is formed substantially on the same first radius from the axis of the hollow portion 101. That is, the opening part 105 is formed on the substantially same circumference from the axis | shaft of the hollow part 101, for example. The first same radius may be a predetermined value set on the outer periphery of the air inlet 103, and the value of the radius is not limited.

  By driving the fan unit 200, the fluid outside the end surface 102 in the housing 100 is sucked into the hollow unit 101 from the inlet 103 and the opening 105. When the opening 105 is formed around the intake port 103, fluid flow such as the shape of a truncated cone is generated outside the end surface 102 by the intake of fluid through the opening 105. This is because the fluid outside the end face 102 is sucked by the holes of the openings 105 formed along the same circumference. The flow of fluid like a truncated cone shape outside the end face 102 will be described later.

  The intake port 103 is an opening formed independently of the opening 105. For this reason, the flow of fluid sucked by the intake port 103 is independent of the flow of fluid sucked by the opening 105. The fluid sucked by the suction port 103 flows independently inside the flow of the frustoconical fluid. As a characteristic of the fluid, the fluid sucked by the suction port 103 flows along the fluid flow like a truncated cone shape.

  As a result, the flow of fluid sucked by the intake port 103 has directivity. That is, the fluid sucked by the intake port 103 flows straight from the outside of the end face 102 to the hollow portion 101 through the intake port 103. Thereby, the straightness of the flow of the fluid sucked by the intake device 10 is improved.

  It is desirable that the opening 105 for generating a fluid flow like a truncated cone is formed on substantially the same radius from the axis of the hollow portion 101, for example. This is because the distortion of the opening 105 is a cause of the distortion of the truncated cone shape, and the distortion of the truncated cone shape impairs the straightness of the flow of the fluid sucked by the intake port 103.

  As will be described later, the flow of fluid in the shape of a truncated cone is generated outside the end face 102 by the intake of the fluid through the opening 105. When the frustoconical fluid flow is generated, the straightness of the fluid flow sucked from the suction port 103 is improved. The distortion of the truncated cone shape impairs the straightness of the flow of fluid sucked from the suction port 103. Therefore, it is desirable that the frustoconical distortion is suppressed.

  The cause of the frustoconical distortion is, for example, the occurrence of turbulent flow in the hollow portion 101 and the distortion of the opening 105. When turbulent flow is generated in the hollow portion 101, the uniformity of the flow of fluid sucked from each element of the opening 105 is impaired. As a result, the shape of the truncated cone generated by the intake of the fluid through the opening 105 is distorted, and the straightness of the flow of the fluid sucked from the intake port 103 is impaired.

  As described above, in the hollow portion 101, the wall surface of the hollow portion 101, the shape of the intake port 103, and the shape of the opening 105 affect the generation of turbulent flow. When the shape of the vertical cross section in the axial direction of the hollow portion 101, the shape of the intake port 103, and the shape of the opening portion 105 are polygons having acute angles, turbulent flow can occur in the hollow portion 101. Therefore, it is desirable that the shape of the hollow section 101 in the vertical cross section in the axial direction, the shape of the intake port 103, and the shape of the opening 105 be smooth.

  The smooth shape means a shape formed with a curve such as a circle. The smooth shape means, for example, a polygonal shape having an obtuse angle. Therefore, when the shape of the vertical cross section of the hollow portion 101, the shape of the intake port 103, and the shape of the opening 105 are polygons, it is desirable that the interior angle of the polygon is an obtuse angle.

  Further, the frustoconical distortion of the fluid flow is caused by the distortion of the opening 105 in the end face 102. The distortion of the opening 105 includes at least one of a distortion of the shape of the element of the opening 105 and a fairly non-uniform spacing between elements. That is, the distortion of the opening 105 includes a combination of one or two or more of the distortion of the shape of the element of the opening 015 and a considerably non-uniform spacing between elements. It is. The element of the opening 105 means a hole such as a circle or a hole such as a slit.

  “Substantially the same radius” may include, for example, the meaning of a radius in which a deviation amount caused by a manufacturing error is added to a truly identical radius. Further, the substantially same radius may include the meaning that the opening 105 is formed on the same radius to the extent that an effect of generating a fluid flow such as a truncated cone shape is exhibited. Hereinafter, the same applies to the present invention.

  In FIG. 1 and FIG. 2B, the opening 105 is formed by eight circular holes that are substantially equally spaced in the circumferential direction, but is not limited thereto. . The number of circular holes in the opening 105 may be plural. The number of circular holes in the opening 105 is preferably 3 or more, for example. This is because when the number of circular holes is two or less, a fluid flow like a three-dimensional frustoconical shape does not occur outside the end face 102.

  Note that the substantially uniform separation may include, for example, the meaning of a spacing obtained by adding a deviation amount caused by a manufacturing error to a truly uniform separation. In addition, the substantially uniform separation may include the meaning of being separated with the same width to the extent that an effect of generating a fluid flow such as a truncated cone shape is exhibited. Hereinafter, the same applies to the present invention.

  Moreover, although each hole of the opening part 105 was demonstrated as circular shape, it is an example and is not limited to this. Each of the holes of the opening 105 may be a polygon, for example. When the interior angle of the polygon of the hole of the opening 105 is an obtuse angle, generation of turbulent flow is suppressed in the hollow portion 101. Moreover, when the shape of the hole of the opening part 105 is an equilateral polygon, generation | occurrence | production of a turbulent flow is suppressed in the hollow part 101. FIG. In such a case, the number of sides of the equilateral polygon is preferably 6 or more, for example. This is because the larger the interior angle of the polygon, the smoother the shape and the less likely it is to generate turbulence.

  Hereinafter, variations in the shape of the opening 105 will be described.

(When the opening 105 is a hole having a plurality of circular shapes or the like)
The opening 105 is, for example, a plurality of holes formed in the end surface 102, and at least a part of each of the plurality of holes is formed on the same radius. Here, each of the plurality of holes is a circular hole, an elliptical hole, or a polygonal hole. FIG. 3 shows an example of the shape of the hole of the opening 105. Hereinafter, an example in which the opening 105 is a plurality of holes will be described with reference to FIGS. 3A to 3C.

  FIG. 3A shows an example of the shape of the hole of the opening 105. In FIG. 3A, a broken line L2 indicates a circumference on the same radius with the point on the axis of the hollow portion 101 as the center point. In FIG. 3A, the end surface 102 includes an air inlet 103 and an opening 105 element. In FIG. 3A, the element of the opening 105 includes circular holes 105a, 105b, 105c, and 105d. For example, each of the holes 105a to 105d has a center point on the broken line L2, and is formed to be evenly spaced on the broken line L2.

  In such a case, a fluid flow such as a truncated cone shape is generated by the elements of the openings 105 formed to be evenly spaced on the circumference on the same radius. As a result, the fluid sucked from the air inlet 103 flows straight toward the hollow portion 101 inside the truncated cone shape. In the case of FIG. 3A, since distortion of the arrangement | positioning, shape, or space | interval in the circumferential direction of the opening part 105 is suppressed, distortion of the fluid flow like a truncated cone shape is suppressed. As a result, as will be described later, the straightness of the flow of the fluid sucked by the intake port 103 is particularly improved.

  FIG. 3B shows another example of the shape of the circular hole of the opening 105. In FIG. 3B, the end face 102 has an air inlet 103 and circular holes 105a, 105b, 105c, 105e. For example, holes 105a-c have a center point on broken line L2, while hole 105e does not have a center point on broken line L2.

  In such a case, the broken line L2 is included in at least a part of the opening of the hole 105e. At least a part of the openings of the hole 105a, the hole 105b, the hole 105c, and the hole 105e is formed on the broken line L2. Therefore, a fluid flow like a truncated cone shape is generated by the openings formed on the same radius. As a result, the fluid sucked from the air inlet 103 flows straight toward the hollow portion 101 inside the truncated cone shape.

  FIG. 3C shows another example of the shape of the circular hole of the opening 105. In FIG. 3C, the end surface 102 has an air inlet 103 and circular holes 105a, 105b, 105c, and 105f. For example, the holes 105a to 105c are equally spaced apart from each other on the broken line L2, while the holes 105f are not evenly spaced on the broken line L2.

  In such a case, the hole 105f has a center point on the broken line L2, similarly to the hole 105a, the hole 105b, and the hole 105c. Therefore, as will be described later, a fluid flow like a truncated cone is generated by the openings formed on the same radius. As a result, the fluid sucked from the air inlet 103 flows straight toward the hollow portion 101 inside the truncated cone shape.

  Note that the shape, number, and arrangement of the holes of the opening 105 have been described with reference to FIGS. 3A to 3C, but are examples and not limited thereto. The number of circular holes need not be an even number, and may be an odd number. The shape of the hole may be elliptical or polygonal.

  The example in the case where the opening 105 is a plurality of holes having a circular shape or the like formed in the end surface 102 has been described with reference to FIGS. 3A to 3C.

(When the opening 105 is a plurality of slit-shaped holes)
The opening 105 may be, for example, a plurality of slits formed on the first same radius, and the plurality of slits may be formed substantially equally spaced on the first same radius. FIG. 4 shows an example of the slit shape of the opening 105. Hereinafter, an example in which the opening 105 is a plurality of slits formed in the end face 102 will be described with reference to FIGS. 4A and 4B.

  FIG. 4A shows an example of the shape of the slit of the opening 105. In FIG. 4A, a broken line L3 indicates a circumference on the same radius with the point on the axis of the hollow portion 101 as the center point. In FIG. 4A, the end surface 102 has an air inlet 103 and an opening 105 element. In FIG. 4A, the element of the opening 105 includes slit-shaped holes 105j, 105k, 105m, and 105n. For example, each of the holes 105j to 105n is formed on the broken line L3 along the center axis of the slit, and is formed substantially equally spaced on the broken line L3.

  In such a case, a fluid flow like a truncated cone shape is generated by the openings 105 formed to be evenly spaced around the circumference on the same radius. As a result, the fluid sucked from the suction port 103 flows straight toward the hollow portion 101 inside the flow of the frustoconical fluid. In the case of FIG. 4A, since distortion such as the arrangement, shape, or interval in the circumferential direction of the opening 105 is suppressed, distortion of fluid flow like a truncated cone shape can be suppressed. As a result, as will be described later, the straightness of fluid intake at the intake port 103 is particularly improved.

  FIG. 4B shows another example of the slit shape of the opening 105. In FIG. 4B, the end face 102 has an intake port 103 and slit-shaped holes 105j, 105k, 105m, and 105p. For example, the hole 105j, the hole 105k, and the hole 105m are formed on the broken line L3 along the center axis of the slit, while the hole 105p has at least a part of the opening formed on the broken line L3. Is not on the broken line L3.

  In such a case, the broken line L3 is included in at least a part of the opening of the hole 105p. At least some of the openings of the hole 105j, the hole 105k, the hole 105m, and the hole 105p are each formed on a broken line L3. Therefore, a fluid flow like a truncated cone shape is generated by the openings formed on the same radius. As a result, the fluid sucked from the air inlet 103 flows straight toward the hollow portion 101 inside the truncated cone shape.

  Note that the fact that the plurality of slits are substantially evenly spaced on the same radius may include, for example, the meaning of an interval in which a deviation amount caused by a manufacturing error is added to a truly equal interval. In addition, the substantially uniform separation means that the plurality of slits are separated at the same distance on the same radius to the extent that the fluid flow such as a truncated cone shape is exhibited by the opening 105, for example. Meanings may be included. Hereinafter, the same applies to the present invention.

  Although the slit-shaped hole of the opening 105 has been described with reference to FIGS. 4A and 4B, it is an example, and the present invention is not limited to this. The number of slit-shaped holes may be an even number or an odd number. The shape of the slit is preferably an arc shape in order to suppress turbulent flow by the opening 105. The shape of the slit may be, for example, a polygonal shape shown in FIG. 6A. The polygon illustrated in FIG. 6A is a polygon having 10 sides on the outer edge and the inner edge, but is an example, and the number of sides is not limited thereto.

  The example in which the opening 105 is a plurality of slit-shaped holes formed in the end face 102 has been described with reference to FIGS. 4A and 4B.

(When the opening 105 is a single slit-shaped hole)
The opening 105 may be, for example, one slit formed on the first same radius. Hereinafter, an example in which the opening 105 is one slit-shaped hole formed in the end face 102 will be described with reference to FIG.

  FIG. 5 shows an example of the shape of the slit of the opening 105. In FIG. 5, a broken line L4 indicates a circumference on the same radius with the point on the axis of the hollow portion 103 as the center point. In FIG. 5, the end surface 102 has an air inlet 103 and a slit-shaped hole 105q. The slit-shaped hole 105q can be called, for example, a C-shaped slit or a C-shaped hole. For example, the slit-shaped hole 105q is formed on the broken line L4 along the center axis of the slit.

  In such a case, a fluid flow like a truncated cone shape is generated by the openings 105 formed along the circumference on the same radius. As a result, the fluid sucked from the air inlet 103 flows straight toward the hollow portion 101 inside the truncated cone shape.

  Although the hole of the opening part 105 was demonstrated using FIG. 5, it is an example and is not limited to this. The shape of the slit is preferably an arc shape for suppressing turbulent flow in the hollow portion 101. The shape of the slit may be a polygonal shape shown in FIG. 6B. The polygon illustrated in FIG. 6B is a polygon having 36 sides on the outer edge and the inner edge, but is an example, and the number of sides is not limited thereto.

  In the above, the variation of the shape of the opening part 105 was demonstrated. Hereinafter, the description returns to FIGS. 1 and 2.

  1 and 2, the housing 100 has an exhaust port 104. The exhaust port 104 is formed, for example, at the second end E2 of the hollow portion 101. The area of the exhaust port 104 does not have to be smaller than the cross-sectional area of the vertical cross section of the hollow portion 101 in the axial direction. The area of the exhaust port 104 is set based on the specification regarding the shape of the housing 100 and is not limited in the present invention.

  1 and 2, the exhaust port 104 is illustrated as an opening of the second end portion E2 of the hollow portion, but is an example and is not limited thereto. For example, an end surface different from the end surface 102 may be formed at the end E2, and the exhaust port 104 may be formed at the other end surface.

  The housing 100 has a side wall 106. The side wall 106 has an inner wall and an outer wall. A hollow portion 101 is formed by the inner wall of the side wall 106. The shape of the outer wall of the side wall 106 is arbitrarily designed.

  The fan unit 200 is provided on the second end side of the first end and the second end. For example, the fan unit may be provided in contact with the second end. The fan part 200 has a blade | wing part and a drive part, for example. The fan unit 200 is a structure having at least a function of sucking fluid by a rotational motion of the blade unit. A drive part is a means to drive the rotational motion of a blade | wing part, Comprising: For example, it is a motor. The blade portion is, for example, a fan or a diaphragm. The fan may be, for example, a sirocco fan, and the type of the fan is not limited in the present invention.

  In FIG. 1 and FIG. 2, the fan unit 200 is supported by the side wall 106 and arranged in contact with the exhaust port 104. However, the fan unit 200 is an example and is not limited thereto. For example, the end portion of the side wall 106 may terminate at the second end portion E2 of the hollow portion, and the fan portion 200 may be joined to the exhaust port 104. The joining means is not limited in the present invention. Since the joining technique is a known technique, detailed description thereof is omitted.

  The control unit 300 controls the fan unit 200 so that the fluid outside the end face 102 is sucked in the direction from the intake port 103 to the exhaust port 104. Since the control technique of the fan part 200 by the control part 300 is a well-known technique, the detailed description is abbreviate | omitted.

  The control unit 300 may be configured by an integrated circuit such as an FPGA (Field Programmable Gate Array). Moreover, the control part 300 may be implement | achieved by CPU (Central Processing Unit) or MPU (Micro Processing Unit) etc., for example.

  The control unit 300 has been described as a circuit controlled by an electric signal, but is an example, and the present invention is not limited to this. For example, the control unit 300 may be a device that drives a fan using elastic energy of an elastic body. The elastic body is, for example, a spring, a spring or the like. The control unit may be a mechanical drive device, for example.

  The control unit 300 is provided outside the hollow portion 101, for example. In such a case, it is possible to avoid placing an object that causes turbulence in the hollow portion 101. As a result, the straightness of the flow of the fluid sucked in the direction from the intake port 103 to the exhaust port 104 is improved.

  The control unit 300 may be a processor mounted on a circuit board provided inside the hollow part 101, for example, and the circuit board may be included in a spindle-shaped resin. In such a case, a circuit board is provided inside the hollow portion 101, but is covered with a spindle-shaped resin. Therefore, in the hollow portion 101, the occurrence of turbulent flow of the fluid sucked from the intake port 103 is suppressed. As a result, the straightness of the flow of the fluid sucked in the direction from the intake port 103 to the exhaust port 104 is improved.

  The configuration of the intake device 10 has been described above.

  Next, the action and effect of the intake structure in the intake device 10 will be described in detail with reference to FIG. FIG. 7 is a diagram illustrating a flow of fluid to be sucked. FIG. 7A shows an example of the flow of fluid when the fluid is sucked only by the intake port 103. FIG. 7B shows an example of the flow of fluid when the fluid is sucked by the inlet 103 and the opening 105.

  Hereinafter, it will be described with reference to FIGS. 7A and 7B that by providing the opening 105, the straightness of the flow of fluid sucked from the intake port 103 is improved. In the following description, a diagram showing a flow of fluid is a diagram in which a simulation result using a three-dimensional fluid analysis tool is observed on a two-dimensional plane.

  In FIG. 7A, an apparatus 700 has a configuration in which the opening 105 is removed from the intake apparatus 10. An opening corresponding to the opening 105 is not formed on the end surface of the apparatus 700, and only the air inlet 103 is formed. In FIG. 7A, an object to be measured 701 is installed facing the air inlet 103 of the apparatus 700. The object to be measured 701 is hereinafter also referred to as a detection object. In FIG. 7A, the area ratio between the end face of the intake device 700 and the intake port 103 is about 4.6 to 1. In FIG. 7A, the distance from the inlet 103 to the object 701 to be measured is about 6 times the diameter of the inlet 103.

  In FIG. 7A, when the fluid is sucked only by the intake port 103, the fluid outside the end face of the apparatus 700 is sucked in all directions by the intake port 103. As a result, the air inlet 103 sucks not only the fluid in the region 702 but also the fluid in the region 703 and the fluid in the region 704 together. In FIG. 7A, the fluid flow in the region 705 does not go to the intake port 103, and the straightness of the flow of fluid sucked by the intake port 103 is impaired.

  This is because when the inlet 103 sucks the fluid in the region 702, the fluid in the region 703, and the fluid in the region 704 through one opening, turbulent flow is generated in the region 705, and the region 702 and the object 701 to be measured are in contact with each other. This is because the fluid in the intermediate region 705 does not flow toward the intake port 103 due to the influence of turbulent flow. As a result, in FIG. 7A, the region of the fluid that can be directly sucked by the intake port 103 is a distance of about twice the diameter of the intake port 103. In addition, the dimensional ratio in FIG. 7A is an example, and is not limited to this.

  On the other hand, the intake device 10 in FIG. 7B has an intake port 103 and an opening 105 on the end face 102. The opening 105 is, for example, eight circular holes. In FIG. 7B, an object to be measured 701 facing the intake port 103 of the intake device 10 is installed. In FIG. 7B, the area ratio between the end face 102 and the air inlet 103 is about 4.6 to 1, and the area ratio between the air inlet 103 and the opening 105 is about 2.3 to 1, and the measurement is made from the air inlet 103. The distance to the object 701 is about 6 times the diameter of the air inlet 103. In addition, the dimensional ratio in FIG. 7B is an example, and is not limited to this.

  In FIG. 7B, when the fluid is sucked from the inlet 103 and the opening 105, the fluid outside the end face 102 is sucked with directivity. Specifically, the fluid in the region 703 and the fluid in the region 704 are sucked by the opening 105. The fluid in the region 702 and the region 705 is sucked by the intake port 103. As a result, the straightness of the fluid sucked by the intake port 103 is improved.

  This is because, as will be described later, the flow of fluid in the shape of a truncated cone is generated outside the end face 102 by the intake of the fluid through the opening 105. When a fluid flow having a truncated cone shape is generated outside the end face 102, the fluid in the region 703 and the fluid in the region 704 are sucked by the opening 105. The fluid in the region 702 inside the frustoconical shape and the fluid in the region 705 flow from the air inlet 103 to the hollow portion 101 independently of the fluid flow like the frustoconical shape. This is because the air inlet 103 is formed independently of the opening 105. As a result, the fluid in the region 702 and the region 705 facing the intake port 103 on the end surface 102 flows straight from the outside of the end surface 102 to the hollow portion 101 through the intake port 103. Thereby, the straightness of the flow of the fluid sucked by the intake port 103 is improved. In FIG. 7B, the region of the fluid that can be sucked straight by the intake port 103 reaches a distance of about 6 times the diameter of the intake port 103.

  FIG. 8 shows an example of the flow of fluid sucked by the opening 105 in the simulation result shown in FIG. 7B. In FIG. 8, a region 800 shows a flow of fluid sucked by the opening 105. As shown by region 800, the flow of fluid inhaled by opening 105 is shaped like a truncated cone.

  The flow of fluid, such as a truncated cone shape, generated by fluid intake by the opening 105 is imitating a trumpet shape. In acoustics, a thorn-shaped horn is used to extend the distance that the transmitted sound reaches. Similarly, the flow of the fluid sucked by the opening 105 forms a truncated cone-like shape 800 simulating a trumpet shape, so that the straightness of the fluid flow inside the truncated cone shape 800 is improved. . As a result, the fluid farther from the end face 102 is sucked straight by the intake port 103.

  The area ratio between the intake port 103 and the opening 105 in the above is an example, and the present invention is not limited to this. In the above description, the area ratio between the end face 102 and the air inlet 103 is an example, and the present invention is not limited to this.

  FIG. 9 shows another example of the flow of fluid sucked by the opening 105. In FIG. 9, the opening 105 has, for example, four circular holes. In FIG. 9, the area ratio between the end face 102 and the air inlet 103 is about 4.6 to 1, and the area ratio between the air inlet 103 and the opening 105 is about 1.05 to 1, and the area ratio from the air inlet 103 is reduced. The distance to the measurement object 701 is about 6 times the diameter of the air inlet 103. In FIG. 9, the flow of the fluid sucked by the opening 105 shows a shape like a truncated cone as in FIG.

  In the above description, the description of the opening 105 formed as a circular hole is an example, and the present invention is not limited to this. Even in another example of the opening 105, the same effect is obtained.

  FIG. 10 shows an example of the flow of fluid sucked by the opening 105. In FIG. 10, the opening 105 includes, for example, a slit-shaped hole having two rounds. In FIG. 10, the area ratio between the end face 102 and the air inlet 103 is about 4.6 to 1, and the area ratio between the air inlet 103 and the opening 105 is about 0.77 to 1, and the area ratio from the air inlet 103 is reduced. The distance to the measurement object 701 is about 6 times the diameter of the air inlet 103. In FIG. 10, the flow of the fluid sucked by the opening 105 shows a shape like a truncated cone as in FIG.

  The fluid inside the truncated cone shape is sucked from the intake port 103 along the flow of the truncated cone shape fluid. For this reason, the frustoconical shape of the fluid flow outside the end face 102 is distorted, thereby impairing the straightness of the fluid flow sucked by the intake port 103. The distortion of the frustoconical shape of the fluid flow is caused by distortion of the shape of the element of the opening 105, distortion such as a considerably non-uniform interval, and the like.

  FIG. 11 is a diagram for explaining the flow path of the fluid when a plurality of holes are formed to be considerably uneven in the end face 102. FIG. 11A shows an example in which the plurality of holes of the opening 105 are arranged substantially unevenly on substantially the same radius. In FIG. 11A, a broken line L5 indicates a circumference on the same radius with the point on the axis of the hollow portion 103 as the center point. In FIG. 11A, the end surface 102 has an intake port 103 and circular holes 1101, 1102, 1103.

  FIG. 11B is a simulation result of a fluid flow when the opening 105 has the shape shown in FIG. 11A. As shown in FIG. 11B, the distortion, such as the arrangement, shape, or interval in the circumferential direction of the opening 105, distorts the frustoconical shape of the fluid flow.

  As a result, the effect of generating a frustoconical fluid flow due to the formation of the opening 105 appears, whereas the distortion of the frustoconical shape of the flow channel affects the straightness of the flow channel sucked by the intake port 103. To do. Therefore, it is desirable that the openings 105 that generate a fluid flow such as a truncated cone be formed on substantially the same radius from a point on the axis of the hollow portion 101, for example. The flow path means a fluid flow.

  The operation and effect of the intake structure in the intake device 10 have been described above.

  As described above, the intake device 10 is, for example, a cylindrical structure in which the hollow portion 101 is formed, and the end surface 102 having the intake port 103 is formed at the first end portion of the hollow portion 101. The exhaust port 104 is formed at the second end portion facing the first end portion of the hollow portion 101, and the opening area of the intake port 103 is narrower than the cross-sectional area of the axially vertical cross section of the hollow portion 101 at the end face 102. A casing 100 in which a first opening 105 is formed on the substantially same first radius from the axis of the hollow portion 101 independently of the inlet 103 around the inlet 103, and a first end And a fan part 200 provided on the second end side of the second end part, and a control part 300 for controlling the fan part 200 so as to intake air from the intake port 103 toward the exhaust port 104. Prepare.

  According to the embodiment of the present invention, the intake device 10 has an opening area of the intake port 103 that is narrower than the cross-sectional area of the vertical section of the hollow portion 101 and is hollow around the intake port 103 independently of the intake port 103. It has an end face 102 in which a first opening 105 is formed substantially on the same first radius from the axis of the portion 101. As a result, the fluid sucked by the opening 105 generates a fluid flow having a truncated cone shape outside the end face 102, and the straightness of the fluid flow sucked by the suction port 103 is improved.

  Further, for example, the shape of the air inlet 103 may be a circle having a center point on the axis of the hollow portion 101. A circular shape does not need to be a perfect circle without distortion, but refers to a shape without corners. Thereby, it is suppressed that the fluid suck | inhaled by the inlet 103 produces a turbulent flow in the hollow part 101, and the linearity of the flow of the fluid suck | inhaled by the inlet 103 is improved.

  Further, for example, the opening 105 is a plurality of holes formed in the end surface 102, and at least a part of each of the plurality of holes is formed on the first same radius, and each of the plurality of holes is It may be circular, elliptical or polygonal. Accordingly, the fluid sucked by the opening 105 is prevented from generating turbulent flow in the hollow portion 101, and the straightness of the flow of the fluid sucked by the suction port 103 is improved. In such a case, for example, the center points of the plurality of holes may be formed so as to be substantially equally spaced on the first same radius. Thereby, the hole of the opening part 105 is arrange | positioned symmetrically, and generation | occurrence | production of a turbulent flow is suppressed.

  Further, for example, the opening 105 may be a plurality of slits formed on the first same radius, and the plurality of slits may be formed substantially equally spaced on the first same radius. . Thereby, the holes of the opening 105 are formed evenly on the same radius, and the straightness of the flow of the fluid sucked by the intake port 103 is improved.

  Further, for example, the opening 105 may be one slit formed on the first same radius. As a result, the openings 105 are uniformly formed on the same radius, and have the effect of contributing to an improvement in the straightness of fluid intake by the intake port 103.

  Further, for example, the control unit 300 may be provided outside the hollow portion 101. Thereby, an unnecessary structure is not arrange | positioned inside the hollow part 101, and generation | occurrence | production of the turbulent flow of a fluid is suppressed.

  Further, for example, the control unit 300 may be a processor mounted on a circuit board provided inside the hollow part 101, and the circuit board may be included in a spindle-shaped resin. Thereby, even if it is a case where the control part 300 is formed in the inside of the hollow part 101, generation | occurrence | production of the turbulent flow in the hollow part 101 is suppressed.

  In the above description, the example in which the hole of the opening 105 is formed on the same radius of the outer periphery of the intake port 103 has been described, but it is only an example and the present invention is not limited thereto. FIG. 12 shows an example of the opening 105. Hereinafter, another example of the opening 105 will be described with reference to FIG.

  As shown in FIG. 12, on the end face 102, the second opening on the outer periphery of the first opening 1201 is substantially second on the same radius from the axis of the hollow portion independently of the first opening 1201. The opening 1202 may be formed. The opening 105 includes a first opening 1201 and a second opening 1202. The first opening 1201 and the second opening 1202 do not need to have the same shape.

  One of the first opening 1201 and the second opening 1202 may be a plurality of circular holes, and the other may be one or a plurality of slit-shaped holes. Both of the first opening 1201 and the second opening 1202 may be a plurality of circular holes, or may be one or a plurality of slit-shaped holes. The opening 105 may further have an opening on the outer periphery of the opening 1202.

  Thereby, the circular hole of each circumference can be formed small, and the width of the slit shape can be narrowed. Negative pressure is applied to the hole of the opening 105, and the flow rate of the frustoconical fluid increases. As a result, the straightness of the flow of the fluid sucked by the intake port 103 is improved.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. Hereinafter, each modification will be described.

(Modification 1)
In the embodiment, the thickness of the end surface 102 is not particularly mentioned. For example, the thickness of the first region forming the air inlet 103 is larger than the thickness of the second region other than the first region in the end surface 102. It can be large. Thereby, the straightness of the flow of the fluid sucked from the intake port 103 is improved.

  FIG. 13 is a diagram for explaining a first modification of the present invention. FIG. 13A shows an example of a cross-sectional view of the end face 102 in the axial direction of the hollow portion 101. FIG. 13B shows another example of a cross-sectional view of the cross section 102 in the axial direction of the hollow portion 101.

  In the end surface 102 shown in FIG. 13A, the thickness of the region 1301 that forms the air inlet 103 is larger than the thickness of the other region 1302. As a result, the straightness of the fluid flow at the opening of the intake port 103 is improved. This is because the fluid flows along the wall. As a result, the straightness of the flow of the fluid sucked by the intake port 103 is improved.

  Further, for example, the shape of the air inlet 103 may be a circle having a center point on the axis of the hollow portion 101, and the shape of the axial section of the first region may be a drum shape. Note that the circular shape does not need to be a perfect circle without distortion, and refers to a shape without corners.

  13B, the cross section of the region 1301 in the axial direction of the hollow portion 101 has a drum shape. In such a case, the negative pressure is applied to the drum-shaped region 1303, so that the flow velocity of the fluid sucked by the suction port 103 is increased, and the straightness of the fluid flow in the suction port 103 is improved. This is because the fluid flows toward the region where the pressure is decreasing. As a result, the straightness of the flow of the fluid sucked by the intake port 103 is improved.

  13A and 13B, the region 1301 forming the air inlet 103 is in contact with the opening 105, but this is an example, and the present invention is not limited to this. That is, the region 1301 may not be in contact with each of the plurality of holes of the opening 105.

(Modification 2)
In the embodiment, the exhaust port 104 is disposed to face the intake port 103, but the exhaust port 104 may be formed on the side wall 106 of the housing 100. FIG. 14 is a diagram for explaining a second modification of the embodiment. FIG. 14A shows a cross-sectional view of a modification of the intake device 10. FIG. 14B shows a front view of Modification 2 of the intake device 10. Hereinafter, the intake device 10 according to the second modification will be described with reference to FIG.

  In FIG. 14, the intake device 100 is a cylindrical structure in which a hollow portion 101 is formed, and an end face 102 having an intake port 103 is formed at a first end portion of the hollow portion 101, and the hollow portion A bottom lid 1400 is formed at a second end portion opposite to the first end portion of the 101, an exhaust port 1401 is formed at an axial side surface of the hollow portion 101, and the opening area of the intake port 103 is hollow at the end surface 102. The first opening 105 is formed on the substantially same first radius from the axis of the hollow portion 101 around the intake port 103 and is narrower than the cross-sectional area of the vertical cross section of the portion 101 in the axial direction. And a fan unit 1402 provided at the exhaust port 1401, and a control unit 300 that controls the fan unit 1402 to intake air from the intake port 103 toward the exhaust port 1401.

  The bottom lid 1400 is formed at the second end E2 of the hollow portion 101, for example. The bottom lid 1400 is a structure having a predetermined thickness. In FIG. 14, the bottom lid 1400 is formed outside the side wall 106, but this is an example and the present invention is not limited to this. For example, the bottom lid 1400 may be formed inside the side wall 106 so that the surface of the bottom lid 1400 coincides with the end E2.

  In FIG. 14, the bottom lid 1400 is described as a separate configuration from the side wall 106 for convenience of description, but is an example, and the present invention is not limited to this. The bottom lid 1400 may be integrally formed with the side wall 106.

  In FIG. 14, the exhaust port 1401 is formed on the axial side surface of the hollow portion 101. That is, the exhaust port 1401 is formed in the side wall 106. One or more exhaust ports 1401 are formed in the side wall 106.

  When one exhaust port 1401 is formed in the side wall 106, the exhaust port 1401 is preferably formed so as to surround the periphery of the side wall 106. This is because in the hollow portion 101, the deviation of the flow of fluid from the intake air to the exhaust gas causes turbulence in the hollow portion 101. The turbulent flow in the hollow portion 101 impairs the uniformity of the fluid sucked by each element of the opening 105. As a result, the frustoconical channel outside the end face 102 is distorted. The distortion of the truncated cone shape impairs the straightness of the flow of fluid sucked from the suction port 103.

  Further, when a plurality of exhaust ports 1401 are formed in the side wall 106, it is desirable that the exhaust ports 1401 are formed to be substantially equally spaced around the side wall 106. This is for suppressing the occurrence of turbulent flow in the hollow portion 101.

  The fan unit 1402 is provided at the exhaust port 1401. When one exhaust port 1401 is formed in the side wall 106, the fan part 1402 is provided so as to surround the exhaust port 1401. When a plurality of exhaust ports 1401 are formed on the side wall 106, the same number of fan portions 1402 as the exhaust ports 1401 are provided.

  According to this modification, the exhaust port 1401 is formed in the side wall 106, so that the degree of freedom in designing the intake device 10 is increased.

(Modification 3)
In the embodiment, the intake function of the intake device 10 has been described. However, a detection function may be added by further providing a sensor. FIG. 15 is a diagram illustrating an intake device 1500 in the present modification. Hereinafter, this modification will be described with reference to FIG.

  In FIG. 15, the intake device 1500 includes the intake device 10, and further includes a gas sensor 1501 and a notification unit 1502.

  For example, the gas sensor 1501 outputs a result of detecting the concentration of a predetermined gas such as alcohol to the control unit 300 as a detection signal. The gas sensor 1501 includes a semiconductor sensor. The semiconductor sensor may be, for example, a sensor that converts a gas concentration into an electrical signal using the detected gas characteristics and outputs the electrical signal as a detection signal. The gas sensor 1501 may be a single gas sensor or a composite sensor. The gas sensor 1501 includes, for example, an alcohol sensor or an oxygen sensor. Since the detection technology of the alcohol sensor and the oxygen sensor is a known technology, detailed description thereof is omitted.

  In FIG. 15, the gas sensor 1501 is supported by a support member (not shown) formed at the first end E1 of the hollow portion 101, for example. The support member formed at the end E1 may be formed on the end surface 102 or may be formed on the hollow portion 101, for example. The installation location of the support member that supports the gas sensor 1501 is an example, and is not limited thereto.

  In FIG. 15, the gas sensor 1501 is installed at a position included in the opening region 1503 of the intake port 103, but is an example, and the present invention is not limited to this. For example, the gas sensor 1501 may be installed in the hollow portion 101 close to the air inlet 103. It is desirable that the gas sensor 1501 is installed on a flow path through which fluid sucked by the intake port 103 flows straight.

  Thereby, the precision which detects the density | concentration of the gas component contained in the to-be-measured object 701 mentioned later becomes high. This also facilitates replacement of the gas sensor 1501 whose function has been consumed. Further, by installing the gas sensor 1501 in a region closer to the air inlet 103 than the fan unit 200, it is possible to avoid the foreign matter attached to the fan unit 200 from being erroneously detected by the gas sensor 1501.

  When the gas sensor 1501 is supported by the support member formed at the end E1, the fluid outside the end surface 102 sucked by the intake port 103 flows in contact with the gas sensor 1501. When the object to be measured 701 containing a gas component such as an alcohol component is installed opposite to the intake port 103, the gas component contained in the object to be measured 701 is directly taken in by the intake port 103. The gas component contained in the measurement object 701 contacts the gas sensor 1501 intensively without being dispersed. Therefore, it becomes easy to detect the gas component contained in the measurement object 701 by the gas sensor 1501. In addition, although the to-be-measured object 701 is a foodstuff, drinking water, gas etc., for example, it is an example and is not limited to this.

  In the present modification, the control unit 300 uses a notification unit 1502 to notify in a predetermined method based on the detection signal of the gas sensor 1501. Specifically, the control unit 300 receives a detection signal from the gas sensor 1501. The detection signal may be, for example, a signal obtained by converting the gas concentration detected by the gas sensor 1501 into an electric signal. The controller 300 determines whether the received detection signal satisfies a predetermined criterion. For example, when a predetermined criterion is satisfied, the control unit 300 outputs a control signal to the notification unit 1502 to notify the user of the intake device 1500 by a predetermined method.

  The predetermined reference may be, for example, a numerical value of a detection signal indicating that the gas concentration exceeds a predetermined amount. When the control unit 300 receives a detection signal indicating that the concentration of the gas component contained in the measurement object 701 exceeds a predetermined amount, the control unit 300 notifies the user of a corresponding notification using the notification unit 1502. This is an example, and the present invention is not limited to this.

  The predetermined criterion may include a plurality of criteria. The predetermined criterion may include, for example, a first criterion and a second criterion different from the first criterion. The first reference may be, for example, a numerical value of a detection signal indicating that the concentration of the gas component contained in the measurement object 701 exceeds the first threshold value. The second reference may be, for example, a numerical value of a detection signal indicating that the concentration of the gas component contained in the measurement object 701 exceeds a second threshold value that is smaller than the first threshold value.

  When the control unit 300 receives a detection signal indicating that the concentration of the gas component contained in the object to be measured 701 exceeds the first threshold, the control unit 300 uses the notification unit 1502 to notify the first notification corresponding thereto. Let them know. When the control unit 300 receives a detection signal indicating that the concentration of the gas component contained in the measurement object 701 exceeds the second threshold and does not exceed the first threshold, the control unit 300 corresponds to the first detection signal. The notification unit 1502 is used to notify the user of a second notification that is different from the notification.

  The notification unit 1502 has a function of notifying sound, light, vibration, and the like, for example. In addition, the notification unit 1502 may include a display, for example, and display predetermined information on the display. The notification method of the notification unit 1502 is not limited to sound, light, vibration, or display display, and may have a function of notifying by another notification method.

  The first notification and the second notification described above differ in at least one of sound, light, vibration, and display display. For example, the first notification may be light emission of a first color such as red, and the second notification may be light emission of a second color such as blue. For example, the first notification may be a pronunciation of a first timbre, and the second notification may be a pronunciation of a second timbre. For example, the first notification may be the first vibration and the second notification may be the second vibration.

  Thereby, the user can easily grasp the level of the concentration of the gas component contained in the measurement object 701. In addition, the installation location of the alerting | reporting part 1502 in FIG. 15 is an example, Comprising: It is not limited to this.

  As described above, in the present modification, the intake device 1500 is supported by the support portion formed at the first end E1, and the gas sensor 1501 that outputs the detection result of the predetermined gas to the control unit 300 as a detection signal. The notification unit 1502 is further provided, and the control unit 300 causes the notification unit 1502 to notify in a predetermined method based on the detection signal. As a result, the gas contained in the measurement object 701 facing the end face 102 and sucked by the air inlet 103 is detected by the gas sensor 1501, and the detection result is notified to the user of the air intake device 1500.

  In the present invention, since the opening 105 is formed in the end surface 102, the straightness of the flow of the fluid sucked by the intake port 103 is strong, so the distance between the object 701 to be measured and the gas sensor 1501 facing the end surface 102 is small. Even if the distance is about a few tens of centimeters, the gas sensor 1502 detects the predetermined gas contained in the measurement object 701 with high accuracy. That is, it has the effect of extending the effective range of the gas sensor 1502 from that of the prior art.

  Note that the intake device 1500 having the gas sensor 1501 may further include an irradiation unit. An irradiation unit (not shown) has a light source and emits light. The irradiation unit is provided at a predetermined position where the object to be measured 701 can be irradiated with light when the inlet 103 of the gas sensor 1501 faces the object to be measured 701. In such a case, the light emitted by the irradiating unit represents the effective range distance of the gas sensor 1501 with respect to the object 701 to be measured.

  Specifically, when the object to be measured 701 is irradiated with light from the irradiation unit, an image of the light is projected onto the object to be measured 701. For example, when the size of the image of the projected light is equal to or less than a predetermined value, it is previously known to the user that the gas sensor 1501 is at an effective range distance with respect to the object 701 to be measured. Known methods are not limited. Thereby, the user of the intake device 1500 can intuitively understand the effective range distance of the gas sensor 1501 with respect to the object 701 to be measured. The effective range distance means a range in which the intake device 1500 can detect a gas component contained in the measurement object 701 with high accuracy.

  Note that the effective range is indicated by the size of the image of light, and is not limited to this. For example, the effective range may be indicated by the shading of the projected light image. The measurement object 701 is also referred to as a detection object.

  That is, when the detection object 701 of the gas sensor 1501 is irradiated with light, the effective range distance of the gas sensor 1501 with respect to the detection object 701 depends on the size of the light image that appears on the detection object 701 or the density of the light image. Is expressed. The irradiation unit may irradiate light according to a control signal from the control unit 300. The irradiating unit may irradiate light with a switch function provided separately.

  The gas sensor 1501 outputs a detection signal based on the calibration result, and the calibration result is a detection result when the control unit 300 controls the fan unit 200 to exhaust from the exhaust port 104 toward the intake port 103. It may be. FIG. 16 is a flowchart showing an example of the operation flow of the intake device 1500 in the present modification. This flow may be performed once, for example, when the power of the intake device 1500 is on, or may be repeatedly performed.

  First, the control unit 300 performs reverse rotation control of the fan unit 200 so as to exhaust air from the exhaust port 104 toward the intake port 103 (step S101).

  Next, the control unit 300 controls the fan unit 200 to rotate backward, and after a predetermined time has elapsed, causes the gas sensor 1501 to detect the gas concentration and outputs the detection result to the control unit 300 (step S102). The predetermined time is, for example, about several seconds to several tens of seconds. Thereby, the foreign material adhering to the gas sensor 1501 is removed.

  Next, based on the received detection result, the controller 300 determines whether or not the gas concentration detected by the gas sensor 1501 is equal to or less than a predetermined value (step S103).

  When the gas concentration is equal to or lower than the predetermined value (step S103; YES), the control unit 300 determines that the calibration is completed, and rotates the fan unit 200 so as to intake air from the intake port 103 toward the exhaust port 104. Control (step S104). And the control part 300 detects gas concentration using the gas sensor 1501 (step S105), and makes the gas sensor 1501 output a detection result (step S106).

  On the other hand, when the gas concentration is equal to or higher than the predetermined value (step S103: NO), the control unit 300 determines that the calibration is not completed, and controls the fan unit 200 to rotate backward (step S101). .

  The control process of the intake device 1500 has been described above.

(Modification 4)
In the third modification, the gas sensor 1501 has been described as a semiconductor sensor, but is an example, and the present invention is not limited to this. That is, the gas sensor 1501 may be, for example, an object such as paper or cotton that has been infiltrated with an alcohol detection reagent. The object such as paper / cotton into which the alcohol detection reagent has permeated may be, for example, an alcohol detection tube. In such a case, the detection signal of the gas sensor 1501 is a color signal to which the alcohol detection reagent reacts, for example.

  In this modification, the color signal to which the alcohol detection reagent reacts may be recognized by the user's visual observation, for example. Therefore, in this modification, the intake device 1500 does not need to include the notification unit 1502. That is, the intake device 1500 according to this modification further includes a gas sensor 1501 that is supported at the first end portion of the intake device 10 and detects a predetermined gas. Thereby, the user can recognize the concentration of the gas component contained in the DUT 701 based on a simpler configuration of the intake device.

  Note that the function described in the third modification is also applied to this modification. The intake device 1500 according to the present modification includes a light source, and further includes an irradiation unit that irradiates light, and an image of light that appears on the detection target 701 when the detection target 701 of the gas sensor 1501 is irradiated with light. The effective range of the gas sensor 1501 with respect to the detection target 701 may be expressed.

  In the above, the modification of embodiment was demonstrated. You may combine each modification arbitrarily.

  In the above description, the intake device 10 has been described with the target object as a fluid such as gas or liquid, but the target object may be solid. The intake device 10 and the intake layer 1500 can be applied not only to devices that use gas detection but also to suction devices such as vacuum cleaners. In addition, the present invention can be applied to all techniques related to intake or suction.

(Example of computer hardware configuration)
The functions of the control unit 300 in the embodiment and each modification may be realized by a program. An example of the hardware configuration of the computer in that case is shown in FIG.

  As shown in FIG. 17, a computer 9000 includes, for example, a central processing unit (CPU) 9001, a random access memory (RAM) 9002, a read only memory (ROM) 9003, a storage device 9004, and an input / output interface (I / F) 9005. A reading interface (I / F) 9006 and a communication interface (I / F) 9007. Each unit described above is connected directly or indirectly via the bus 9008.

  The storage device 9004 is, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like. The computer 9000 is connected to an input / output (I / O) device 9009 via an input / output interface 9005. The input / output device 9009 includes an input device having an input function as a main function and an output device having an output function as a main function in addition to a device having an input function and an output function such as a magnetic disk device. The input device is, for example, an input key, a mouse, a touch panel, and a scanner. The output device is, for example, a display, a speaker, or a printer.

  A reading interface 9006 reads a program or data recorded on a recording medium 9010. The recording medium 9010 is, for example, a semiconductor memory, an optical recording medium, a magnetic recording medium, a magneto-optical recording medium, or the like.

  The communication interface 9007 receives data from other devices via the network 9011 and transmits data to other devices. The network 9011 may be a wired network or a wireless network. The other device may be a client device or a server device.

  For example, a program stored in the ROM 9003, a program stored in the storage device 9004, a program recorded in the recording medium 9010, or a program received by the communication interface from another device is loaded into the RAM 9002. In the above-described embodiment and each modification, for example, the CPU 9001 executes a program loaded in the RAM 9002, thereby realizing the functions of the respective units in the above-described embodiment and the like.

  Note that the function of each unit in the computer 9000 may be realized by cloud computing.

  The sensor control program executed by the computer in the sensor control system 1 or the described function may be recorded on a non-transitory tangible computer-readable storage medium (A non-transitory, tangible computer-readable storage medium). . The non-transitory tangible computer-readable recording medium is any recording medium that can be accessed by a computer, a CPU, an MPU (Micro Processing Unit), or the like. The arbitrary recording medium is, for example, a ROM, a RAM, a flash memory, a magnetic storage device, an optical disk, etc., and is not limited to the exemplified one.

  The intake device according to the present invention is effective for all techniques for sucking gas and the like and for sucking solids and the like in general.

DESCRIPTION OF SYMBOLS 10 Intake device 100 Housing | casing 101 Hollow part 102 End surface 103 Inlet port 104 Exhaust port 105 Opening part 106 Side wall 200 Fan part 300 Control part 700 Intake device 701 to be measured 702-705 Space area 800 Frustum area 1101 to 1103 Non-uniformly formed holes 1201 First opening portion 1202 Second opening portion 1301 First region forming an air inlet 1302 Second region 1303 A bowl-shaped region 1400 Bottom lid 1401 Exhaust port 1402 Fan unit 1500 Intake device 1501 Sensor 1502 Notification unit 1503 Open area 9000 Computer 9001 CPU
9002 RAM
9003 ROM
9004 Storage device 9005 Input / output interface 9006 Reading interface 9007 Communication interface 9008 Bus 9009 Input / output device 9010 Recording medium 9011 Network

Claims (18)

A hollow structure having a hollow portion formed therein, an end surface having an intake port having no acute angle is formed at a first end portion of the hollow portion, and an exhaust port is formed in the hollow portion. The opening area of the intake port is narrower than the cross-sectional area of the axially vertical cross section of the hollow portion, and the central portion of the end surface or A plurality of first slits are formed on the outer periphery of the intake port formed in a substantially central portion, independently of the intake port , along a circumference on the first same radius from the shaft of the hollow portion. And a housing
Of the first end and the second end, a fan portion provided on the second end side;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
Intake device comprising. The shape of the air inlet is a circle having a center point on the axis of the hollow portion,
The intake device according to claim 1. Before SL plurality of first slits are formed are substantially evenly spaced on the circumference,
The intake device according to claim 1. The control unit is provided outside the hollow part,
The intake device according to claim 1. The control unit is a processor mounted on a circuit board provided inside the hollow part, and the circuit board is included in a spindle-shaped resin.
The intake device according to claim 1. In the end face, a plurality of first slits are arranged on the outer periphery of the plurality of first slits along a circumference substantially on the same second radius from the hollow portion axis independently of the plurality of first slits. second slits are formed,
The intake device according to claim 1. In the end surface, the thickness of the first region forming the air inlet is larger than the thickness of the second region other than the first region in the end surface,
The intake device according to claim 1. The shape of the air inlet is a circle having a center point on the axis of the hollow portion, and the shape of the axial section of the first region is a drum shape.
The intake device according to claim 7 . A hollow structure having a hollow portion formed therein, an end surface having an intake port having a shape having no acute angle is formed at a first end portion of the hollow portion, and the first portion of the hollow portion is formed. A bottom cover is formed at a second end opposite to one end, and an exhaust port is formed at an axial side surface of the hollow portion, and an opening area of the intake port at the end surface is an axial direction of the hollow portion It is narrower than the cross-sectional area of the vertical cross section, and is substantially the same as the first radius from the shaft of the hollow portion independently of the air intake port on the outer periphery of the air intake port formed at the center or substantially the center of the end surface. A housing in which a plurality of slits are formed along the circumference;
A fan part provided at the exhaust port;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
Intake device comprising. A hollow structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end of the hollow portion, and an exhaust port is formed with the first end of the hollow portion. The opening area of the air inlet is narrower than the cross-sectional area of the axially vertical cross section of the hollow portion, and is formed at the central portion or the substantially central portion of the end surface. A casing in which a C-shaped slit is formed on the outer periphery of the air inlet along the circumference on the first radius from the axis of the hollow portion independently of the air inlet;
Of the first end and the second end, a fan portion provided on the second end side;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
Intake device comprising. A cylindrical structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end portion of the hollow portion, and is opposed to the first end portion of the hollow portion. A bottom cover is formed at the end of 2, and an exhaust port is formed on the axial side surface of the hollow portion, and the opening area of the intake port is narrower than the cross-sectional area of the vertical vertical section of the hollow portion on the end surface; A C-shaped slit on the outer periphery of the intake port formed at the center or substantially the center of the end surface along the circumference on the first radius from the axis of the hollow portion independently of the intake port A housing formed with,
A fan part provided at the exhaust port;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
Intake device comprising. A hollow structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end of the hollow portion, and an exhaust port is formed with the first end of the hollow portion. The opening area of the air inlet is narrower than the cross-sectional area of the axially vertical cross section of the hollow portion, and is formed at the central portion or the substantially central portion of the end surface. A housing in which a first opening including a plurality of holes or a plurality of slits is formed substantially on the same first radius from the shaft of the hollow portion independently of the air inlet on the outer periphery of the air inlet;
Of the first end and the second end, a fan portion provided on the second end side;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
A gas sensor for detecting a predetermined gas provided in an opening area of the intake port,
Intake Ru equipped with exhaust device. A notification section,
The gas sensor outputs a result of detecting the predetermined gas to the control unit as a detection signal,
The control unit is caused to notify in a predetermined method using the notification unit based on the detection signal.
The intake device according to claim 12. An irradiation unit that has a light source and emits light;
An effective range of the gas sensor with respect to the detection target is represented by an image of light that appears on the detection target when the detection target of the gas sensor is irradiated with the light.
The intake device according to claim 12. The gas sensor outputs the detection signal based on a calibration result,
The calibration result is a detection result when the fan unit is controlled by the control unit to exhaust air from the exhaust port toward the intake port.
The intake device according to claim 13. A cylindrical structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end portion of the hollow portion, and is opposed to the first end portion of the hollow portion. A bottom cover is formed at the end of 2, and an exhaust port is formed on the axial side surface of the hollow portion, and the opening area of the intake port is narrower than the cross-sectional area of the vertical vertical section of the hollow portion on the end surface; A plurality of holes or a plurality of slits are formed substantially on the same first radius from the shaft of the hollow portion independently of the air intake port on the outer periphery of the air intake port formed at the center or substantially the center of the end surface. A housing formed with a first opening including:
A fan part provided at the exhaust port;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
A gas sensor for detecting a predetermined gas provided in an opening region of the intake port;
Intake device comprising. A hollow structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end of the hollow portion, and an exhaust port is formed with the first end of the hollow portion. The opening area of the air inlet is narrower than the cross-sectional area of the axially vertical cross section of the hollow portion, and is formed at the central portion or the substantially central portion of the end surface. A casing in which a C-shaped slit is formed on the outer periphery of the air inlet along the circumference on the first radius from the axis of the hollow portion independently of the air inlet;
Of the first end and the second end, a fan portion provided on the second end side;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
A gas sensor for detecting a predetermined gas provided in an opening region of the intake port;
Intake device comprising. A cylindrical structure having a hollow portion formed therein, an end surface having an air inlet is formed at a first end portion of the hollow portion, and is opposed to the first end portion of the hollow portion. A bottom cover is formed at the end of 2, and an exhaust port is formed on the axial side surface of the hollow portion, and the opening area of the intake port is narrower than the cross-sectional area of the vertical vertical section of the hollow portion on the end surface; A C-shaped slit on the outer periphery of the intake port formed at the center or substantially the center of the end surface along the circumference on the first radius from the axis of the hollow portion independently of the intake port A housing formed with,
A fan part provided at the exhaust port;
A control unit that controls the fan unit to intake air from the intake port toward the exhaust port;
A gas sensor for detecting a predetermined gas provided in an opening region of the intake port;
Intake device comprising.

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