Duct connection structure and electronic equipment

Abstract

To provide a duct connection structure and an electronic apparatus capable of suppressing the disturbance of cooling air by a flexible coupler, and of reducing a coupler installation space.SOLUTION: A duction connection structure includes a chamber and a flexible coupler. An opening in which the tip of a duct to be connected is fitted is formed in the chamber. The flexible coupler has the duct fitted therein, has one end connected to the tip of the duct, and has the other end connected to the chamber.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD An embodiment of the present invention relates to a duct connection structure and an electronic device. [Background technology]

[0002] For example, an electronic device such as a transmitter of a master station that transmits broadcast waves is composed of a heat-generating part provided within a housing, a chamber provided within the housing, a duct provided outside the housing, a blower connected to the duct, etc. The chamber provided within the housing is connected to a duct installed on the building side to take in outside air. The electronic device sends cooling air blown from the blower connected to the air duct to the heat-generating part through the air duct and the air blowing chamber to cool the heat-generating part.

[0003] Here, the housing is installed on the floor of a building such as a base station, and the air duct is installed on the ceiling, wall, or floor of the building. However, during construction, misalignment may occur between the air duct and the chamber inside the housing. Furthermore, when the building is shaken by an earthquake or the like, the amplitude and direction of vibrations applied to the air duct and the air chamber may differ depending on the installation location.

[0004] For this reason, the chamber inside the housing and the duct outside the housing are connected via a flexible joint to absorb misalignment, vibration, etc. The flexible joint is made of a flexible material, such as a thick woven cotton cloth or synthetic fabric. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-229934 Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved by the present invention is to provide a duct connection structure and an electronic device that can suppress turbulence of cooling air caused by flexible joints and reduce the joint installation space. [Means for solving the problem]

[0007] The duct connection structure includes a chamber and a flexible joint. The chamber has an opening into which the end of the duct to be connected is inserted. The flexible joint has one end into which the duct is inserted, one end connected to the end of the duct, and the other end connected to the chamber. , absorbing misalignment of the chamber and the duct . The opening of the chamber is larger than the tip of the duct, allowing the misalignment of the chamber and the duct. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram schematically illustrating the configuration of an electronic device according to a first embodiment. [Figure 2] FIG. 10 is an explanatory diagram schematically illustrating the configuration of an electronic device according to a second embodiment. [Figure 3] FIG. 10 is a cross-sectional view showing the configuration of a duct connection structure used in an electronic device according to a second embodiment. [Figure 4] FIG. 10 is a perspective view showing the configuration of a duct, a flexible joint, a chamber, and a connection joint of a duct connection structure according to a second embodiment. [Figure 5] FIG. 10 is a perspective view showing the configuration of a connection joint according to a second embodiment. [Figure 6] FIG. 10 is an explanatory view showing the configuration of a connection joint according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] A duct connection structure 2 and an electronic device 1 according to a first embodiment of the present invention will be described below with reference to Fig. 1. Fig. 1 is an explanatory diagram schematically showing the configuration of the electronic device 1 according to the first embodiment.

[0010] 1, electronic device 1 includes, for example, a housing 11, a heat-generating unit 12, two chambers 13, two flexible joints 14, two ducts 15, and a blower 18. Electronic device 1 can cool heat-generating unit 12 in housing 11 by supplying cooling air from blower 18 to heat-generating unit 12 through duct 15 and chamber 13, and exhausting the cooling air from the other chamber 13 and duct 15. In electronic device 1, housing 11 is fixed to the floor of a building, and two ducts 15 are fixed to the ceiling wall, side wall, or floor of the building.

[0011] Such electronic device 1 is, for example, a transmitter such as a master station that transmits broadcast waves. Note that electronic device 1 may also be a communication device, a server, etc. That is, electronic device 1 can be applied to various devices as long as it is configured to forcibly cool the inside of housing 11 with cooling air from fan 18 and has a configuration in which chamber 13 and duct 15 are connected within chamber 13 of housing 11 by flexible joint 14.

[0012] The housing 11 houses or holds, for example, the heat generating unit 12 and two chambers 13. The housing 11 is formed so that a portion thereof can be opened, for example, to allow the heat generating unit 12 and the chambers 13 to be inserted and removed or to perform maintenance. The housing 11 may also have, for example, various rail structures or support structures on the inner wall portion, allowing the heat generating unit 12 to be slid in and removed. The housing 11 is fixed to the floor surface on which the electronic device 1 is installed within a building.

[0013] For example, multiple heat generating units 12 are arranged vertically. The heat generating units 12 are, for example, electronic units. For example, the heat generating units 12 include a substrate, multiple electronic components mounted on the substrate, and a heat sink. The electronic components include heat generating components such as an amplifier or a processor. Alternatively, the heat generating units 12 may have a flow path for cooling air passing through the heat sink inside. The heat generating units 12 may also have an air guide plate, a fan, etc.

[0014] The chamber 13 is connected to the duct 15 via a flexible joint 14. Of the two chambers 13, one chamber 13 is provided on the primary side of the heat generating part 12, and the other chamber 13 is provided on the secondary side of the heat generating part 12. Here, the primary side of the heat generating part 12 is the upstream side in the flow direction of the cooling air, and the secondary side is the downstream side in the flow direction of the cooling air.

[0015] One chamber 13 forms a flow path for cooling air that flows to the plurality of heat generating parts 12. The other chamber 13 forms a flow path for cooling air that is exhausted from the plurality of heat generating parts 12.

[0016] The chamber 13 has a first opening 13d formed in any one of the ceiling wall 13a, side wall 13b, and bottom wall 13c, through which the duct 15 is inserted. In this embodiment, an example in which the first opening 13d is provided in the ceiling wall 13a will be described. In addition, the chamber 13 has a second opening 13e that is fluidly connected to the heat generating unit 12, at a position on the side wall 13b facing the heat generating unit 12.

[0017] First opening 13d is formed to a size that allows insertion of duct 15. As a specific example, first opening 13d is set to an opening larger than the tip end surface of duct 15. Holes are formed around first opening 13d, into which fastening members 25 such as bolts that fasten flexible joint 14 are inserted.

[0018] For example, a plurality of second openings 13e are provided. The number of second openings 13e is the same as the number of heat generating portions 12, and they face the heat generating portions 12, respectively. Note that only one second opening 13e may be provided, and the opening area may be set to face the heat generating portions 12.

[0019] The flexible joint 14 includes a pair of flanges 14a and a flexible tube 14b. One of the pair of flanges 14a is fixed to the periphery of the first opening 13d of the chamber 13. As a specific example, one of the flanges 14a is fixed to the periphery of the first opening 13d on the inner surface side of the chamber 13.

[0020] The other of the pair of flanges 14a is fixed to a flange (duct flange) 15a provided at the tip of the duct 15. As a specific example, the other flange 14a is fixed to a surface of the flange 15a of the duct 15 that faces the chamber 13. One flange 14a connected to the first opening 13d of the chamber 13 is larger than the other flange 14a connected to the flange 15a of the duct 15. In this embodiment, the pair of flanges 14a of the flexible joint 14 are outer flanges. Note that the pair of flanges 14a may be inner flanges, or one flange 14a of the pair of flanges 14a may be an outer flange and the other flange 14a may be an inner flange.

[0021] The tube 14b is made of a flexible material, such as a thickly woven cotton cloth or synthetic fabric. Specifically, the tube 14b is made of canvas. The tube 14b is formed so that the duct 15 can be inserted therein. That is, the inner shape of the tube 14b is larger than the outer shape of the duct 15. When the flexible coupling 14 connects the chamber 13 and the duct 15, the tube 14b is disposed around the duct 15.

[0022] When the duct 15 is separable and configured to be insertable into the pipe 14b, the inner shape of the pipe 14b is formed to be larger than the outer shape of the pipe portion of the duct 15 and smaller than the outer shape of the flange 15a of the duct 15. When the duct 15 is not separable, the inner shape of the pipe 14b is formed to be larger than the outer shape of the pipe portion of the duct 15 and the outer shape of the flange 15a of the duct 15.

[0023] The chamber 13 and the flexible joint 14 constitute a duct connection structure 2 for connecting a duct 15 .

[0024] Ducts 15 form a flow path for cooling air. One of the two ducts 15 has a primary end connected to blower 18 and a secondary end connected to chamber 13 on the primary side of heat-generating unit 12. The other of the two ducts 15 has a primary end connected to chamber 13 on the secondary side of heat-generating unit 12 and a secondary end connected to an exhaust destination for exhausting the cooling air.

[0025] The end of the duct 15 is disposed within the chamber 13 and is connected to the chamber 13 via a flexible coupling 14 within the chamber 13 .

[0026] The blower 18 is connected to one of the ducts 15. The blower 18 blows cooling air into the duct 15. The blower 18 is, for example, a blower fan.

[0027] In the electronic device 1 configured in this manner, cooling air blown from the fan 18 flows through one duct 15 and one chamber 13 connected to the one duct 15 via a flexible joint 14 to the plurality of heat-generating parts 12, cooling the plurality of heat-generating parts 12. The cooling air that has cooled the plurality of heat-generating parts 12 is then exhausted through the other chamber 13 and the other duct 15 connected to the other chamber 13 via a flexible joint 14.

[0028] The chamber 13 and duct 15 of such electronic device 1 are connected within chamber 13 via flexible joint 14. Therefore, the opening at the end of duct 15 is located within chamber 13. Therefore, the flow path of the cooling air blown from blower 18 is formed by chamber 13 and duct 15. Furthermore, flexible joint 14, which is located outside the outer circumferential surface of duct 15, does not form a flow path for the cooling air. In other words, the flow path formed by flexible joint 14 is not located between the flow path formed by chamber 13 and the flow path formed by duct 15. In other words, electronic device 1 and duct connection structure 2 are configured such that flexible joint 14 does not directly form a flow path for the cooling air.

[0029] Therefore, the electronic device 1 and the duct connection structure 2 can prevent the cooling air from passing through the flexible joint 14, which becomes uneven due to bending or is deformed by the pressure of the cooling air. Therefore, the electronic device 1 and the duct connection structure 2 can prevent turbulence in the flow of the cooling air caused by bending of the flexible joint 14. By preventing turbulence in the flow of the cooling air, the electronic device 1 and the duct connection structure 2 can prevent pressure loss and a decrease in the volume of the cooling air.

[0030] Furthermore, in the electronic device 1 and the duct connection structure 2, an end of the duct 15 is disposed within the chamber 13, and the duct 15 is connected to the opening of the chamber 13 within the chamber 13 by a flexible joint 14. Therefore, there is no need for space to dispose the flexible joint 14 outside the housing 11 (chamber 13), and the space required for installing the electronic device 1 can be reduced.

[0031] Furthermore, the flexible joint 14 can change the relative position of the pair of flanges 14a by bending the pipe 14b. Therefore, in the electronic device 1 and the duct connection structure 2, by connecting the chamber 13 and the duct 15 with the flexible joint 14, it is easy to connect the chamber 13 and the duct 15 even if there is a positional misalignment in the three axes between the chamber 13 and the duct 15. In particular, when installing the electronic device 1, for example, when the installation of the housing 11 on the floor and the installation of the duct 15 on the ceiling, sidewall, or floor of a building are performed separately, dimensional errors in the housing 11 and the duct 15 and positional misalignment during installation may occur. However, in the electronic device 1 and the duct connection structure 2 of this embodiment, the use of the flexible joint 14 makes it easy to install the housing 11 and the duct 15.

[0032] Furthermore, when a building shakes, such as during an earthquake, the direction and magnitude of vibration of the housing 11 (chamber 13) and the duct 15 may differ depending on the mounting positions of the housing 11 and the duct 15. However, the electronic device 1 and duct connection structure 2 of the embodiment are configured to connect the chamber 13 and the duct 15 via the flexible joint 14, and therefore, even if the direction and magnitude of vibration of the chamber 13 and the duct 15 differ, it is possible to prevent the force due to vibration from concentrating on the connection portion between the chamber 13 and the duct 15. In this way, the flexible joint 14 can absorb misalignment and vibration of the chamber 13 and the duct 15.

[0033] As described above, according to the electronic device 1 and duct connection structure 2 of the first embodiment, by connecting the chamber 13 and the duct 15 within the chamber 13 with the flexible joint 14, it is possible to suppress disruption of the cooling air caused by the flexible joint 14 and to reduce the installation space for the flexible joint 14.

[0034] It should be noted that the embodiments are not limited to the examples described above. Next, an electronic device 1 and a duct connection structure 2 according to a second embodiment will be described with reference to Figs. 2 to 5. It should be noted that, among the electronic device 1A and the duct connection structure 2A according to the second embodiment, the same components as those of the electronic device 1 and the duct connection structure 2 according to the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

[0035] 2, electronic device 1A includes, for example, housing 11, heat generating section 12, two chambers 13, two flexible joints 14, two ducts 15, connection joint 16, and blower 18. Chamber 13, flexible joint 14, and connection joint 16 constitute duct connection structure 2A.

[0036] For example, electronic device 1A has the same mounting surface of the building to which chamber 13 (housing 11) and duct 15 are attached, and differs from electronic device 1 and duct connection structure 2 according to the first embodiment described above in that the chamber 13 and duct 15 are fixed via connection joint 16. For example, electronic device 1A according to the second embodiment does not need to absorb vibrations of chamber 13 and duct 15, and is an example used when absorbing misalignment of chamber 13 and duct 15 during construction, etc.

[0037] For example, the housing 11 (chamber 13) and the duct 15 are installed on the same mounting surface of a building. More specifically, the housing 11 (chamber 13) is fixed to the floor of the building, and the duct 15 is fixed to an opening formed in the floor to which the housing 11 is fixed. One end of the duct 15 is disposed inside the chamber 13. Therefore, vibrations occurring in the housing 11 (chamber 13) and the duct 15 due to an earthquake or the like have the same amplitude and direction, and therefore the chamber 13 and the duct 15 do not require vibration absorption. Therefore, the chamber 13 and the duct 15 can be fixed via a connecting joint 16.

[0038] In this embodiment example, the first opening 13d of the chamber 13 is formed in the side wall 13b.

[0039] The connection joint 16 is fixed to the chamber 13 and the duct 15, and fixes the flange 15a to the chamber 13. The connection joint 16 is formed so that when fixing the duct 15 to the chamber 13, the attachment positions of the chamber 13 and the duct 15 can be adjusted in three axial directions to match the position of the duct 15 relative to the chamber 13.

[0040] As a specific example, the connection joint 16 includes, for example, a first joint 21, a second joint 22, and a plurality of fastening members 25.

[0041] The first joint 21 is fixed to the chamber 13 by, for example, a fastening member 25. The first joint 21 includes, for example, a first plate portion 31 and a second plate portion 32 extending in the same direction as the first plate portion 31. The first plate portion 31 and the second plate portion 32 are formed, for example, by bending a single metal plate at two locations at 90 degrees in different directions. Therefore, the first plate portion 31 and the second plate portion 32 are arranged with a shift in the direction of the main surface of each plate portion 31, 32 and are spaced apart in a direction perpendicular to the surface direction. For example, the first plate portion 31 has a plurality of first elongated holes 31a formed therein, each extending in one direction.

[0042] The first elongated hole 31a has a longitudinal width greater than the outer diameter of the threaded portion of the fastening member 25, and a lateral width slightly greater than the width of the threaded portion so that the threaded portion of the fastening member 25 can be inserted therein. More specifically, the longitudinal width of the first elongated hole 31a is greater than the outer diameter of a plain washer used in the fastening member 25, and the lateral width of the first elongated hole 31a is smaller than the outer diameter of the plain washer. The second plate portion 32 is formed with a plurality of round holes 32a into which the threaded portions of the fastening member 25 are inserted, for example.

[0043] The second joint 22 is fixed by a fastening member 25 to the flange 15a of the duct 15 to which the flexible joint 14 is fixed. The second joint 22 includes, for example, a third plate portion 41 and a fourth plate portion 42 extending in a direction perpendicular to the third plate portion 41. The third plate portion 41 and the fourth plate portion 42 are formed, for example, by bending a single metal plate at a single location at an angle of 90 degrees. For example, the third plate portion 41 is disposed opposite the main surface of the second plate portion 32. When the third plate portion 41 is disposed opposite the second plate portion 32, a plurality of second elongated holes 41a are formed in the third plate portion 41, the second elongated holes 41a extending in a direction perpendicular to the first elongated holes 31a formed in the first plate portion 31. The number of the second elongated holes 41a is the same as the number of the round holes 32a formed in the second plate portion 32, and the second elongated holes 41a are opposite the round holes 32a. When the third plate portion 41 and the second plate portion 32 are arranged opposite each other, the fourth plate portion 42 has multiple third elongated holes 42a formed therein that extend in a direction perpendicular to the first elongated holes 31a formed in the first plate portion 31 and the second elongated holes 41a formed in the third plate portion 41.

[0044] The second elongated hole 41a has a longitudinal width greater than the outer diameter of the threaded portion of the fastening member 25, and a lateral width slightly greater than the threaded portion so that the threaded portion of the fastening member 25 can be inserted therein. As a more specific example, the longitudinal width of the second elongated hole 41a is greater than the outer diameter of a plain washer used in the fastening member 25, and the lateral width of the second elongated hole 41a is smaller than the outer diameter of the plain washer.

[0045] The third elongated hole 42a has a longitudinal width greater than the outer diameter of the threaded portion of the fastening member 25, and a lateral width slightly greater than the threaded portion so that the threaded portion of the fastening member 25 can be inserted therein. As a more specific example, the longitudinal width of the third elongated hole 42a is greater than the outer diameter of a plain washer used in the fastening member 25, and the lateral width of the third elongated hole 42a is smaller than the outer diameter of the plain washer.

[0046] For example, the longitudinal widths of the first elongated hole 31a, the second elongated hole 41a, and the third elongated hole 42a may be set to the same, or may be set to different lengths if the adjustment amount (absorption amount) of positional misalignment differs in the three axial directions.

[0047] In this connection joint 16, the first joint 21 and the second joint 22 are fixed by a fastening member 25. The first joint 21 faces a circular hole 13f formed in the chamber 13, through which the fastening member 25 is inserted, and is fixed to the chamber 13 by the fastening member 25. The second joint 22 faces a circular hole 15c formed in the flange 15a of the duct 15, through which the fastening member 25 is inserted, and is fixed to the flange 15a by the fastening member 25. In addition, the connection joint 16 allows the relative positions of the first joint 21 and the second joint 22, the relative position of the first joint 21 and the chamber 13, and the relative position of the second joint 22 and the flange 15a of the duct 15 to be adjusted by the elongated holes 31a, 41a, and 42a. Therefore, the connection joint 16 can connect the chamber 13 and the duct 15 even if there is misalignment between the chamber 13 and the duct 15 in the three axial directions.

[0048] The electronic device 1A and duct connection structure 2A configured in this manner can suppress turbulence of the cooling air caused by the flexible joint 14 and reduce the installation space for the flexible joint 14, similar to the electronic device 1 and duct connection structure 2 described above. Furthermore, the electronic device 1A and duct connection structure 2A are configured so that vibration absorption is not required, and therefore the chamber 13 and the duct 15 can be fixed by the connection joint 16. In addition, the connection joint 16 can adjust the attachment positions of the chamber 13 and the duct 15 using the fastening member 25 in three axial directions. Therefore, even if the chamber 13 and the duct 15 are misaligned, the electronic device 1A and the duct connection structure 2A can absorb the misalignment and fix the chamber 13 and the duct 15.

[0049] As described above, according to the electronic device 1A and duct connection structure 2A of the second embodiment, by connecting the chamber 13 and the duct 15 within the chamber 13 with the flexible joint 14, it is possible to suppress disruption of the cooling air caused by the flexible joint 14 and to reduce the installation space for the flexible joint 14.

[0050] Furthermore, the embodiments are not limited to the examples described above. For example, as in a third embodiment shown in Fig. 6, a configuration may be adopted in which an air guide plate 17 that guides the flow direction of the cooling air in the chamber 13 and the duct 15 is provided on the flange 15a of the duct 15. Since the duct 15 is disposed within the chamber 13, the cooling air can be prevented from passing through the flexible tube 14b of the flexible joint 14. However, since the flexible joint 14 is present within the chamber 13, there is a risk that some of the cooling air will move to the tube 14b of the flexible joint 14. However, by providing the air guide plate 17 and preventing the cooling air from moving to the tube 14b, the influence of the flexible joint 14 can be further suppressed.

[0051] 6, the air guide plate 17 may be provided in the secondary-side duct 15, or may be provided in the primary-side duct 15 in addition to the secondary-side duct 15. For example, the air guide plate 17 may be a plate whose width gradually increases from the flange 15a side of the duct 15 toward the tip. Another example of the air guide plate 17 is a plate-like plate that is attached to the flange 15a and extends in the plane direction of the flange 15a, blocking the flow path to the pipe 14b of the flexible joint 14.

[0052] Furthermore, for example, in the above example, a configuration has been described in which duct 15 is connected to chamber 13 via flexible joints 14 on each of the primary and secondary sides of heat generating unit 12, but the present invention is not limited to this. That is, electronic device 1 may be configured to have duct connection structure 2 on one of the primary and secondary sides of heat generating unit 12. This is applicable to cases in which blower 18 is directly attached to chamber 13, or where secondary duct 15 for exhaust is not provided in the building. Also, duct connection structure 2 may be retrofitted to an electronic device that already has heat generating unit 12 installed.

[0053] Furthermore, in the above example, a configuration has been described in which the duct 15 is connected to the chamber 13 via the flexible joint 14, but the above-mentioned chamber 13 refers to a member that fluidly connects the duct 15 and the heat generating part 12. Therefore, the chamber 13 includes a duct. Therefore, it goes without saying that the above-mentioned duct connection structure 2 can be applied to connecting the duct 15 to the chamber 13, which is a duct, that is, to connecting ducts to each other.

[0054] Furthermore, the chamber 13, flexible joint 14, and duct 15 can be configured in various shapes, such as a rectangular tube or a cylindrical shape.

[0055] According to at least one of the embodiments described above, the electronic device and duct connection structure connect the chamber and the duct within the chamber with a flexible joint, which can suppress disruption of the cooling air caused by the flexible joint and reduce the installation space for the flexible joint.

[0056] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. The following is a description equivalent to the invention described in the original claims of the present application. [1] A chamber having an opening into which the tip of a duct to be connected is inserted; a flexible joint into which the duct is inserted, one end of which is connected to the tip of the duct and the other end of which is connected to the chamber; A duct connection structure comprising: [2] The flexible joint has a pair of flanges and a flexible pipe provided on the pair of flanges, one of the pair of flanges is fixed to the periphery of the opening of the chamber; the other of the pair of flanges is fixed to a duct flange formed at the tip of the duct, The duct connection structure according to [1], wherein the pipe is arranged around the duct. [3] A duct connection structure according to [1] or [2], comprising a connection joint for fixing the duct to the inner surface of the chamber. [4] A duct connection structure according to [3], in which the connection joint is fastened to the inner surfaces of the duct and the chamber with fastening members, and the mounting positions of the duct and the chamber can be adjusted in three axial directions. [5] The duct connection structure according to any one of [1] to [4], a heat generating portion connected to the chamber; An electronic device comprising: [6] The electronic device described in [5], wherein the chamber and the flexible joint are connected to the primary side and the secondary side of the heat generating portion, respectively. [7] The electronic device described in [6], further comprising an airflow guidance section provided in the duct connected to the secondary side of the heat generating section, which guides the flow of air toward the duct. [8] An electronic device described in any one of [5] to [7], comprising the duct. [9] The electronic device according to [8], further comprising a blower connected to the duct connected to the primary side of the heat generating portion. [Explanation of symbols]

[0057] 1...electronic device, 2...duct connection structure, 11...housing, 12...heat generating part, 13...chamber, 13a...ceiling wall, 13b...side wall, 13c...bottom wall, 13d...first opening, 13e...second opening, 13f...circular hole, 14...flexible joint, 14a...flange, 14b...pipe, 15...duct, 15a...flange, 15c...circular hole, 16...connection joint, 17...air guide plate, 18...blower, 21...first joint, 22...second joint, 25...fastening member, 31...first plate portion, 31...plate portion, 31a...first elongated hole, 32...second plate portion, 32a...circular hole, 41...third plate portion, 41a...second elongated hole, 42...fourth plate portion, 42a...third elongated hole.

Claims

1. a chamber having an opening formed therein into which the tip of a duct to be connected is inserted; a flexible joint into which the duct is inserted, one end of which is connected to the tip of the duct and the other end of which is connected to the chamber, the flexible joint absorbing misalignment of the chamber and the duct; Equipped with A duct connection structure, wherein the opening of the chamber is larger than the tip of the duct, allowing the positional deviation of the chamber and the duct.

2. The flexible joint includes a pair of flanges and a flexible pipe provided on the pair of flanges, one of the pair of flanges is fixed to the periphery of the opening of the chamber; the other of the pair of flanges is fixed to a duct flange formed at the tip of the duct, The duct connection structure according to claim 1 , wherein the tube is disposed around the duct.

3. 3. The duct connection structure according to claim 1, further comprising a connection joint for fixing the duct to the inner surface of the chamber.

4. The duct connection structure according to claim 3 , wherein the connection joint is fastened to the inner surfaces of the duct and the chamber with fastening members, and the attachment positions of the duct and the chamber can be adjusted in three axial directions.

5. The duct connection structure according to any one of claims 1 to 4, a heat generating portion connected to the chamber; An electronic device comprising:

6. The electronic device according to claim 5 , wherein the chamber and the flexible joint are connected to a primary side and a secondary side of the heat generating portion, respectively.

7. The electronic device according to claim 6 , further comprising an airflow guidance section provided in the duct connected to the secondary side of the heat generating section, the airflow guidance section guiding an airflow toward the duct.

8. The electronic device according to claim 5 , comprising the duct.

9. The electronic device according to claim 8 , further comprising a blower connected to the duct connected to the primary side of the heat generating portion.

Images