WO2021192094A1 - 配線保護構造、および空気調和機の室内ユニット - Google Patents

配線保護構造、および空気調和機の室内ユニット Download PDF

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Publication number
WO2021192094A1
WO2021192094A1 PCT/JP2020/013338 JP2020013338W WO2021192094A1 WO 2021192094 A1 WO2021192094 A1 WO 2021192094A1 JP 2020013338 W JP2020013338 W JP 2020013338W WO 2021192094 A1 WO2021192094 A1 WO 2021192094A1
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WO
WIPO (PCT)
Prior art keywords
wiring
guide member
protection structure
wiring portion
side guide
Prior art date
Application number
PCT/JP2020/013338
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English (en)
French (fr)
Japanese (ja)
Inventor
小澤　哲朗
Original Assignee
東芝キヤリア株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to PCT/JP2020/013338 priority Critical patent/WO2021192094A1/ja
Priority to CN202080098886.1A priority patent/CN115335646B/zh
Priority to JP2022509881A priority patent/JP7625580B2/ja
Publication of WO2021192094A1 publication Critical patent/WO2021192094A1/ja
Priority to JP2024155476A priority patent/JP2024161287A/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • An embodiment of the present invention is a structure for protecting wiring (wiring protection structure) connecting a rotating mechanism and a non-rotating mechanism that does not fluctuate with respect to the rotating mechanism, and an air conditioner provided with the wiring protection structure.
  • wiring protection structure wiring protection structure connecting a rotating mechanism and a non-rotating mechanism that does not fluctuate with respect to the rotating mechanism
  • an air conditioner provided with the wiring protection structure.
  • the indoor unit of an air conditioner includes an air inlet, an air outlet, an outlet cover that covers the outer shell of the outlet, a heat exchanger, and a heat exchanger from the inlet to the outlet. It is equipped with a fan that generates airflow and a housing that houses a heat exchanger.
  • the air outlet is provided with a louver that deflects the airflow (hereinafter referred to as the airflow) that is temperature-controlled by a heat exchanger and blown out into the indoor space to be air-conditioned.
  • the louver is configured to have a plurality of wind direction plates in order to spread the blown air through the indoor space and efficiently adjust the indoor temperature. These wind direction plates can be deflected by rotating around a rotation axis by a drive mechanism.
  • the wind direction plate and its rotation axis are displaced by rotating them in the circumferential direction around the central axis of the air outlet, so that the blown air is evenly distributed in the indoor space and the indoor temperature is further increased. It is possible to adjust efficiently.
  • the wiring connected to the drive mechanism of the air outlet is the rotating unit and the air outlet. It is arranged in the space between the cover and connects the housing and the rotating unit.
  • the wiring is, for example, a lead wire of a motor, a signal line of a control board, a power supply line, or the like, and the number of wires does not matter.
  • the rotating unit is a rotating mechanism that rotates with respect to the air outlet cover
  • the air outlet cover is a member that is attached to the housing and does not fluctuate (a component of the non-rotating mechanism with respect to the rotating mechanism). Is. Therefore, when the rotating unit is rotated, the wiring between the rotating unit and the air outlet cover may be violent, and the wiring may deviate from the original wiring position.
  • the problem to be solved by the present invention is to provide a wiring protection structure for suppressing wiring runaway between a rotating mechanism and a non-rotating mechanism and protecting the wiring connecting these members, and the wiring protection structure.
  • the purpose is to provide indoor units for air conditioners.
  • the wiring protection structure in the indoor unit of the air conditioner connects between a rotating mechanism that rotates about a predetermined central axis and a non-rotating mechanism that does not change with respect to the rotating mechanism.
  • a protective member that protects the wiring and allows the wiring to pass through the inside is provided.
  • the protective member includes a wiring portion and a folded portion.
  • the wiring portion defines a wiring space of the wiring set to a distribution dimension larger than the distribution dimension of the wiring.
  • the folded-back portion folds back the wiring portion so that the folded-back position of the wiring portion can be displaced in the rotation direction of the rotating mechanism.
  • FIG. 1 is a schematic perspective view of the indoor unit according to the first embodiment.
  • FIG. 2 is a schematic cross-sectional view of the indoor unit along line II-II in FIG.
  • FIG. 3 is a schematic cross-sectional view of the indoor unit along lines III-III in FIG.
  • FIG. 4 is a schematic perspective view of the indoor unit with the air outlet cover removed.
  • FIG. 5 is an enlarged view of a part of FIG. 4 to schematically show the wiring protection structure.
  • FIG. 6 is a schematic perspective view of a coil spring (coil spring) which is an example of a protective member in a wiring protection structure.
  • FIG. 7 is a schematic perspective view of the movable side guide member of the guide member.
  • FIG. 8 is a schematic perspective view of the fixed side guide member of the guide member.
  • FIG. 1 is a schematic perspective view of the indoor unit according to the first embodiment.
  • FIG. 2 is a schematic cross-sectional view of the indoor unit along line II-II in FIG.
  • FIG. 9 is a diagram schematically showing a wiring protection structure according to a second embodiment.
  • FIG. 10 is a schematic perspective view of an element component (top) of a chain, which is an example of a protective member in a wiring protection structure.
  • FIG. 11 is a schematic plan view of an element component (top) of a chain, which is an example of a protective member in a wiring protection structure.
  • FIG. 12 is a schematic plan view showing a state in which a plurality of frames are connected to form a series of chains.
  • FIG. 13 is a plan view schematically showing an aspect in which the rotation angle of the two connected tops is the minimum.
  • FIG. 14 is a plan view schematically showing a mode in which the rotation angle of the two connected tops is maximum.
  • FIG. 1 is a schematic perspective view of the indoor unit 1 according to the first embodiment.
  • the indoor unit 1 is connected to an outdoor unit including a compressor for compressing the refrigerant, an outdoor heat exchanger, and the like by a refrigerant pipe.
  • An air conditioner equipped with a refrigeration cycle is composed of an indoor unit 1, an outdoor unit, a refrigerant pipe, and the like.
  • the air conditioner can switch between cooling operation and heating operation, for example.
  • the air conditioner may be capable of performing only cooling operation or heating operation.
  • the X direction, the Y direction, and the Z direction are defined as shown in FIG. These X, Y and Z directions are orthogonal to each other.
  • the Z direction is parallel to the vertical direction.
  • the Z direction may be referred to as upward
  • the opposite direction may be referred to as downward
  • the Y direction may be referred to as forward.
  • the indoor unit 1 includes a housing 2 and an outlet unit 4 having an outlet 3 at the tip.
  • the housing 2 includes a front plate 20, a front cover 21 arranged above the front plate 20, a back plate 22 facing the front plate 20 and the front cover 21, and a pair of side plates 23 and 24 facing each other.
  • a bottom plate 25 and a top plate 26 facing the bottom plate 25 are provided.
  • the indoor unit 1 may be installed by only one unit, or is installed in a state of being stacked in a plurality of stages in the Z direction by connecting the back plate 22 to a frame arranged along a pillar or a wall surface of a building, for example. May be done. Further, a plurality of indoor units 1 may be arranged in the X direction, or may be installed at positions separated from each other.
  • the front plate 20, the front cover 21, and the back plate 22 are parallel to the XX plane defined by the X and Z directions.
  • the side plates 23, 24 are parallel to the YZ plane defined by the Y and Z directions.
  • the bottom plate 25 and the top plate 26 are parallel to the XY planes defined by the X and Y directions.
  • the housing 2 has a flat rectangular parallelepiped shape in which the width in the Y direction is sufficiently smaller than the width in the X and Z directions.
  • the shape of the housing 2 is not limited to this example.
  • the front cover 21 is arranged between the front plate 20 and the top plate 26 in the Z direction.
  • the front cover 21 is attached to the front plate 20 by screws 211.
  • a pair of claws are provided on the back surface of the front cover 21, and these claws are hooked on the mounting holes provided in the side plates 23 and 24.
  • the front cover 21 can be attached to and detached from other parts of the housing 2 by removing the screws 211.
  • the structure for making the front cover 21 removable is not limited to the one illustrated here.
  • the air outlet unit 4 is provided with a cylindrical cover (hereinafter referred to as an air outlet cover) 40 that tapers toward the air outlet 3.
  • the air outlet cover 40 covers the outer peripheral surface side of the first cylinder member 92 and the second cylinder member 31, which will be described later, and is a constituent member of the air outlet unit 4 including the air outlet 3 (rectifying plate 94, first cylinder member 92, which will be described later). , And the second cylinder member 31 and the like), and improve the design of the appearance.
  • the air outlet cover 40 is attached to the front plate 20 by at least a screw 41. As a result, the outlet cover 40, together with the housing 2, constitutes a non-rotating mechanism that does not fluctuate with respect to the rotating unit 30 (rotating mechanism) described later.
  • a recess 42 is provided on the outer peripheral surface of the air outlet cover 40, and a screw 41 is passed through a through hole of the end surface of the recess 42 on the housing 2 side.
  • the outer line of the air outlet cover 40 has a curved line shape.
  • the outlet unit 4 further includes a louver 5 provided at the outlet 3.
  • the louver 5 is composed of three rotatable wind direction plates 51, 52, 53.
  • the number of wind direction plates is not limited to three, and the louver 5 may be composed of two or less or four or more wind direction plates.
  • the wind direction plates 51, 52, and 53 adjust the inclination of the airflow blown out from the air outlet 3.
  • FIG. 2 to 4 show a schematic configuration of the indoor unit 1.
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • FIG. 4 is a schematic perspective view of the indoor unit 1 from which the air outlet cover 40 has been removed.
  • a heat exchanger 6 is arranged inside the housing 2.
  • the heat exchanger 6 includes a plurality of heat transfer tubes 60 extending in the X direction and a plurality of fins 61 connected to the heat transfer tubes 60.
  • the plurality of fins 61 have a long shape in the Z direction and are arranged at intervals in the X direction.
  • connection ports 62 and 63 for refrigerant pipes for connecting to the outdoor unit, and suction ports 27 facing the heat exchanger 6.
  • connection port 62 is connected to the inlet of the flow path composed of each heat transfer tube 60
  • connection port 63 is connected to the outlet of the flow path.
  • a drain pan 64 for receiving the condensed water generated in the heat exchanger 6 is arranged below the heat exchanger 6, below the heat exchanger 6, a drain pan 64 for receiving the condensed water generated in the heat exchanger 6 is arranged.
  • the condensed water collected in the drain pan 64 is discharged to the outside of the housing 2 through a pipe (not shown).
  • a mounting plate 70 parallel to the XZ plane is arranged above the heat exchanger 6, a mounting plate 70 parallel to the XZ plane is arranged.
  • the mounting plate 70 faces the front cover 21 and the back plate 22.
  • a partition plate 71 parallel to the XY plane is connected to the lower end of the mounting plate 70.
  • a heat insulating material 65 is arranged between the partition plate 71 and the heat exchanger 6.
  • the mounting plate 70 and the partition plate 71 may be integrally formed by bending one plate material into an L shape, or may be separate plate materials.
  • a space S1 for accommodating the control unit 8 is formed by the mounting plate 70, the partition plate 71, the front cover 21, and the upper surface plate 26.
  • the control unit 8 includes a control board 80 and various electronic components 81.
  • the control board 80 is attached to the mounting plate 70.
  • Each electronic component 81 is mounted on one surface of the control board 80 facing the front cover 21.
  • a communication line for communicating with a remote controller, an outdoor unit, another indoor unit, and the like installed outside the indoor unit 1 and a power supply line are connected to the control unit 8. These communication lines and power supply lines extend to the outside of the indoor unit 1 through, for example, an insertion port provided in the back plate 22.
  • the front plate 20 has an opening 29 that overlaps with the heat exchanger 6 in the Y direction.
  • a fan 9 facing the heat exchanger 6 through the opening 29 is arranged inside the air outlet cover 40.
  • the fan 9 generates an air flow of air whose temperature is controlled by heat exchange in the heat exchanger 6.
  • the fan 9 is, for example, an axial fan, and includes a fan motor 90 and a plurality of blades 91 rotated about a shaft AX by the fan motor 90.
  • the axis AX is parallel to the Y direction.
  • the fan 9 is arranged inside the first cylinder member 92 coaxial with the shaft AX.
  • the first cylinder member 92 is fixed to the housing 2 and surrounds the opening 29 on the outside of the housing 2 and inside the air outlet cover 40. At least a part of the outer peripheral surface of the first cylinder member 92 is covered with the heat insulating material 93.
  • the louver 5 is arranged at the end of the second cylinder member 31 coaxial with the shaft AX.
  • the wind direction plates 51, 52, and 53 of the louver 5 are rotated by, for example, a drive mechanism (hereinafter, referred to as a louver drive mechanism) 33 including a motor 34.
  • the air outlet 3 corresponds to an opening on the tip end side of the second cylinder member 31.
  • the center of the outlet 3 is on the axis AX (the central axis of the outlet 3 and the axis AX coincide with each other).
  • a louver drive mechanism 33 is provided on the outer peripheral surface 31a of the second cylinder member 31.
  • the louver drive mechanism 33 includes a gear for changing the angle of the wind direction plates 51, 52, 53 by the driving force of the motor 34, and rotates the wind direction plates 51, 52, 53 to a predetermined inclination.
  • the motor 34 is connected to the control board 80 by a predetermined wiring (motor lead wire).
  • the louver 5, the second cylinder member 31, the heat insulating material 32, the louver drive mechanism 33, and the motor 34 constitute the rotation unit 30.
  • the rotating unit 30 is rotatably held around the shaft AX by the holding member 10.
  • the shaft AX is the central shaft when the rotating unit 30 rotates.
  • the rotating unit 30 rotates around the axis AX as a rotatable region within a range of 180 °.
  • the rotatable region is a state in which the rotating unit 30 is positioned so that the rotation axes of the wind direction plates 51, 52, 52 are horizontal (parallel to the XY plane) (the state shown in FIG. 4, hereinafter, the reference state). It is within the range of 180 ° around the axis AX. That is, the rotating unit 30 rotates within a range in which the top and bottom are reversed from the reference state.
  • the rotatable range is not limited to this range.
  • the holding member 10 connects the second cylinder member 31 to the first cylinder member 92 so as to be rotatable.
  • the holding member 10 includes a motor 11.
  • the motor 11 meshes the gear provided at the end of the second cylinder member 31 with the gear of the rotating shaft and sends the gear in the circumferential direction around the shaft AX.
  • the second cylinder member 31 rotates with respect to the first cylinder member 92.
  • the second tubular member 31 may be manually rotatable. In this case, for example, by arranging three gears at equal intervals in the circumferential direction around the shaft AX and engaging the gears, the second cylinder member 31 is rotatably supported with respect to the first cylinder member 92. do it.
  • the protrusion 311 When rotating the rotating unit 30, the protrusion 311 is pinched and the rotating unit 30 is rotated about a shaft AX by a desired amount in the circumferential direction.
  • the protrusion 311 is an input portion provided on the peripheral edge of the air outlet 3 of the second tubular member 31 and on which a force for rotating the rotating unit 30 is applied, and functions as a handle.
  • the first cylinder member 92 and the second cylinder member 31 constitute an air passage AD.
  • the air passage AD is a flow path through which the air heat-exchanged (temperature controlled) by the heat exchanger 6 passes as an air flow due to the rotation of the fan 9.
  • the central axis of the air passage AD coincides with the axis AX.
  • a straightening vane 94 is arranged between the fan 9 and the louver 5. The straightening vane 94 is supported by the first cylinder member 92, and arranges the turbulent airflow immediately after being generated by the fan 9 substantially parallel to the shaft AX.
  • the straightening vane 94 has, for example, a honeycomb structure in which a large number of hexagonal openings are arranged, but the present invention is not limited to this example.
  • the first cylinder member 92, the second cylinder member 31, and the straightening vane 94 are included in the constituent members of the outlet unit 4.
  • the control unit 8 controls the rotation speed of the fan 9 based on the information input from the outside, the suction temperature and the blowout temperature detected by the temperature sensor included in the indoor unit 1. Further, the control unit 8 controls the holding member 10 and the louver 5 based on the wind direction setting information input from the outside. By rotating the rotating unit 30 by the holding member 10 and changing the angles of the wind direction plates 51, 52, 53 of the louver 5, it is possible to blow air in various directions.
  • the rotating unit 30 is a rotating mechanism that rotates around the shaft AX.
  • the holding member 10 is fixed to the housing 2 via the first cylinder member 92, and is one of the constituent members of the non-rotating mechanism that does not fluctuate with respect to the rotating unit 30.
  • the lead wire 1a (see FIG. 6) that connects the motor 34 and the control board 80 is a wiring that connects the rotating unit 30 and the holding member 10.
  • FIG. 5 schematically shows the wiring protection structure 100 by enlarging a part of FIG.
  • the wiring protection structure 100 includes a protective member 101 that protects the lead wire 1a through the inside, and a guide member 102 that holds the protective member 101.
  • the protective member 101 is a member that is continuous from one end to the other end along the wiring path of the lead wire 1a, and has a wiring portion 1b and a folded portion 1c.
  • FIG. 6 schematically shows the protective member 101.
  • the protective member 101 is a coil spring (coil spring) 103.
  • the coil spring 103 is formed by winding a wire, for example, a metal wire 300, and continues spirally from one end 103a to the other end 103b, and is capable of elastic deformation such as bending and expansion and contraction.
  • the metal wire 300 has strength (rigidity) and durability that can protect the lead wire 1a wired in the spirally wound internal space when the rotating unit 30 rotates.
  • the wire rod of the coil spring 103 may be made of resin or the like as long as it has such strength (rigidity) and durability.
  • the wiring portion 1b is a portion of the protective member 101 that defines a space (wiring space) through which wiring passes.
  • the spirally wound metal wire 300 corresponds to the wiring portion 1b.
  • the lead wire 1a is wired through the wiring portion 1b, that is, the internal space (wiring space) defined by the spirally wound metal wire 300. Therefore, when the coil spring 103 is elastically deformed, the lead wire 1a wired to the wiring portion 1b also changes to the same form accordingly. Specifically, the folding position of the lead wire 1a changes.
  • the wiring portion 1b defines the internal space with a larger transfer dimension (inner diameter as an example) than the transfer dimension (outer diameter as an example) of the lead wire 1a.
  • the coil spring 103 has a predetermined gap (play) between the lead wire 1a passing through the wiring portion 1b and the metal wire 300 spirally wound corresponding to the wiring portion 1b. Therefore, the lead wire 1a wired in the wiring space of the wiring portion 1b is in a state of being relatively displaceable in the wiring space without being in close contact with the metal wire 300.
  • the folded-back portion 1c is a portion where the wiring portion 1b is bent and folded back in the coil spring 103.
  • the lead wire 1a is folded back at the folded-back portion 1c and wired in the internal space of the wiring portion 1b.
  • the folded-back portion 1c folds back the wiring portion 1b so that the folded-back position of the wiring portion 1b can be displaced in the rotation direction of the rotating unit 30.
  • the rotation direction of the rotation unit 30 is the direction in which the rotation unit 30 rotates with respect to the outlet cover 40, and is the direction corresponding to the circumferential direction about the axis AX (hereinafter, simply rotates). Direction).
  • the metal wire 300 is elastically deformed, so that the folded-back portion 1c displaces the folded-back position of the wiring portion 1b in the rotation direction.
  • the folded-back portion 1c displaces the folded-back position of the wiring portion 1b between a position in front of one end 103a of the coil spring 103 (in short, a wiring portion 1b) and a position in front of the other end 103b. ..
  • one end 103a is located in front of the folded-back portion 1c in the rotation direction at the starting point of the rotation distance (rotatable range) of the rotation unit 30, and at the end point of the rotation distance.
  • the other end 103b has a length located in front of the folded-back portion 1c in the rotation direction.
  • the guide member 102 holds the wiring portion 1b and defines the displacement direction of the folded-back portion 1c, in other words, the folded-back position of the wiring portion 1b. That is, the posture of the wiring portion 1b is maintained within the range in which the guide member 102 exists, and the folding position is defined.
  • the displacement direction of the folded-back portion 1c is substantially the same as the rotation direction.
  • the guide member 102 is provided in pairs with the rotating unit 30 and the holding member 10.
  • one guide member 102 is a rotation-side guide member (hereinafter, referred to as a movable-side guide member 2a) provided in the rotation unit 30.
  • the movable side guide member 2a fixes one end 103a of the wiring portion 1b.
  • the other guide member 102 is a non-rotating side guide member (hereinafter, referred to as a fixed side guide member 2b) provided in the holding member 10 and does not fluctuate with respect to the movable side guide member 2a.
  • the fixed side guide member 2b is provided in a part of the holding member 10, and the holding member 10 also serves as the fixed side guide member 2b.
  • the fixed side guide member 2b fixes the other end 103b of the wiring portion 1b.
  • FIG. 7 shows a schematic configuration of the movable side guide member 2a.
  • the movable side guide member 2a is an arc-shaped member along the rotation direction, and is provided on the outer peripheral side of the heat insulating material 32 that covers the outer periphery of the second tubular member 31. Has been done.
  • the movable side guide member 2a is arranged over substantially the upper half of the second cylinder member 31.
  • the movable side guide member 2a holds the wiring portion 1b (in short, the coil spring 103) along the holding surface 21a and the holding walls 22a and 23a.
  • the holding surface 21a is a curved surface that is concavely curved with a curvature substantially equal to the curvature of the spiral of the metal wire 300 that is spirally wound.
  • the holding wall 22a stands up from the inner peripheral edge of the holding surface 21a, and the holding wall 23a stands up from the outer peripheral edge of the holding surface 21a and faces the holding wall 22a.
  • the peripheral surfaces of the holding walls 22a and 23a are flat surfaces, but may be concavely curved with a curvature substantially equal to the curvature of the spiral of the metal wire 300 wound in a spiral shape.
  • the space surrounded by the holding surface 21a and the holding walls 22a and 23a defines the holding space of the wiring portion 1b.
  • a part of the holding space (a portion facing the fixed side guide member 2b, hereinafter referred to as an open portion 24a) is open.
  • Fixing portions 25a and 26a with the second cylinder member 31 are provided at both ends of the movable side guide member 2a.
  • the fixing portion 25a fixes one end of the movable side guide member 2a to the second cylinder member 31, and the fixing portion 26a fixes the other end of the movable side guide member 2a to the second cylinder member 31.
  • the fixing portion 25a fixes one end 103a of the wiring portion 1b.
  • the other end 103b of the wiring portion 1b extends from the opening portion 24a to the outside of the movable side guide member 2a.
  • a plurality of ribs 27a are provided on the holding surface 21a and the holding walls 22a and 23a at several locations in the circumferential direction at predetermined intervals.
  • the rib 27a is a protrusion (row) that stands up from the holding surface 21a and the holding walls 22a, 23a, respectively, in a direction intersecting the rotation direction.
  • the rib 27a is capable of engaging with the spirally wound metal wire 300. Therefore, when the rotating unit 30 is rotated, the rib 27a sequentially engages with the metal wire 300, and functions as a non-slip for the wiring portion 1b (in short, the coil spring 103) in the movable side guide member 2a.
  • the holding surface 21a has an opening 28a in a part, but the opening 28a can be omitted.
  • FIG. 8 shows a schematic configuration of the fixed side guide member 2b.
  • the fixed side guide member 2b is provided in a part of the holding member 10, and the holding member 10 also serves as the fixed side guide member 2b.
  • the holding member 10 is an annular member along the rotation direction.
  • the fixed side guide member 2b is provided over substantially the upper half of the front side of the holding member 10. As a result, in the reference state as shown in FIGS. 4 and 5, the fixed side guide member 2b partially wraps with the movable side guide member 2a when viewed from the front. That is, in the rotatable region of the rotating unit 30 in the rotating direction, at least a part of the fixed side guide member 2b is arranged so as to face the movable side guide member 2a. In the example shown in FIG. 8, the fixed side guide member 2b is divided into two structures, but it may be one continuous structure or may be divided into three or more structures. good.
  • the fixed side guide member 2b holds the wiring portion 1b (in short, the coil spring 103) along the holding surface 21b and the holding walls 22b and 23b.
  • the holding surface 21b is a flat surface, but may be a curved surface that is concavely curved with a curvature substantially equal to the curvature of the spiral of the metal wire 300 that is spirally wound.
  • the holding wall 22b stands up from the inner peripheral edge of the holding surface 21b, and the holding wall 23b stands up from the outer peripheral edge of the holding surface 21b and faces the holding wall 22b.
  • the peripheral surfaces of the holding walls 22b and 23b are flat surfaces, but may be concavely curved with a curvature substantially equal to the curvature of the spiral of the metal wire 300 wound in a spiral shape.
  • the space surrounded by the holding surface 21b and the holding walls 22b and 23b defines the holding space of the wiring portion 1b.
  • a part of the holding space (a portion facing the movable side guide member 2a, hereinafter referred to as an open portion 24b) is open.
  • the fixed side guide member 2b has a fixed portion 25b on one end side.
  • the fixing portion 25b fixes the other end 103b of the wiring portion 1b.
  • One end 103a of the wiring portion 1b extends from the opening portion 24b to the outside of the fixed side guide member 2b.
  • a plurality of ribs 26b are provided on the holding surface 21b and the holding walls 22b and 23b at several locations in the circumferential direction at predetermined intervals.
  • the rib 26b is a protrusion (strip) that stands up from the holding surface 21b and the holding walls 22b and 23b, respectively, in a direction intersecting the rotation direction.
  • the rib 26b is capable of engaging with the spirally wound metal wire 300. Therefore, when the rotating unit 30 is rotated, the rib 26b engages with the metal wire 300 and functions as a non-slip for the wiring portion 1b (in short, the coil spring 103) in the movable side guide member 2a.
  • one end 103a of the coil spring 103 is fixed to the movable side guide member 2a, and the other end 103b is fixed to the fixed side guide member 2b. Therefore, when the rotating unit 30 rotates, the coil spring 103 elastically deforms in response to the rotation of the rotating unit 30. At this time, the wiring portion 1b is freely bent and expanded and contracted while being held by the guide member 102 (movable side guide member 2a and fixed side guide member 2b), and the folded portion 1c is displaced along the rotation direction.
  • the lead wire 1a also changes to the same form as the wiring portion 1b according to the bending and expansion / contraction of the wiring portion 1b and the displacement of the folded portion 1c, and is folded back at the position of the folded portion 1c. That is, even when the rotating unit 30 is rotated, the lead wire 1a is wired in the wiring portion 1b, that is, the internal space defined by the spirally wound metal wire 300, and the lead wire 1a is wired from the internal space. It will not come off. Therefore, when the rotating unit 30 rotates, it is possible to prevent the position of the lead wire 1a from becoming indefinite between the rotating unit 30 and the holding member 10.
  • the lead wire 1a is folded back at the position of the folded-back portion 1c that is displaced along the rotation direction, the folded-back position of the lead wire 1a, that is, the bending position can be sequentially changed. Therefore, it is not necessary to concentrate the bending position of the lead wire 1a at a specific location, and it is possible to suppress a problem that the lead wire 1a is broken.
  • the movable side guide member 2a is provided with a rib 27a
  • the fixed side guide member 2b is provided with a rib 26b. Therefore, when the rotating unit 30 rotates, the ribs 27a and 26b can be sequentially engaged with the metal wire 300 even when the wiring portion 1b is bent or expanded and contracted.
  • the guide member 102 (movable side guide member 2a and fixed side guide member 2b) can prevent the wiring portion 1b from slipping, and the wiring portion 1b can be reliably held by the guide members 2a and 2b. Therefore, for example, when the rotating unit 30 rotates, it is possible to prevent the coil spring 103 from falling off from the guide members 2a and 2b.
  • the wiring protection structure 100 can be made into a simple configuration with a small number of parts, and the cost can be suppressed.
  • the protection member 101 is a coil spring 103, but the protection member 101 is not limited to the coil spring 103.
  • another embodiment of the protective member 101 will be described as a second embodiment.
  • FIG. 9 schematically shows the wiring protection structure 200 according to the second embodiment.
  • the basic configuration of the indoor unit other than the wiring protection structure 200 is the same as that of the first embodiment (FIGS. 1 to 8). Therefore, the same or similar configurations as those in the first embodiment are designated by the same reference numerals on the drawings, and the description thereof will be omitted.
  • the protection member 101 is a chain 104.
  • the member corresponding to the guide member 102 (FIGS. 7 and 8) is omitted in the wiring protection structure 200.
  • the wiring protection structure 200 may include a predetermined member that holds the chain 104 and defines the folding position thereof.
  • the chain 104 is configured by connecting a plurality of element parts (hereinafter referred to as frames) 400.
  • frames 400 have the same shape.
  • a chain may be formed by connecting several types of pieces having different shapes.
  • the top 400 is made of resin, but may be made of metal or the like.
  • the coma 400 has strength (rigidity) and durability that can protect the lead wire 1a wired in the internal space (a part of the wiring portion 1b) when the rotating unit 30 rotates, as will be described later. It is made of a material that has.
  • FIGS. 10 and 11 show a schematic configuration of the frame 400.
  • 10 is a perspective view
  • FIG. 11 is a plan view.
  • the frame 400 is configured to have seven plate-shaped pieces 401 to 407.
  • the first piece 401 and the second piece 402 each define an inner peripheral surface (curved surface) along the rotation direction of the frame 400.
  • the first piece 401 and the second piece 402 are curved pieces having different curvatures by the wall thickness (heights of the stepped portions 401a and 402a described later).
  • the third piece 403 and the fourth piece 404 each define an outer peripheral surface (curved surface) of the frame 400 along the rotation direction.
  • the third piece 403 and the fourth piece 404 are curved pieces having different curvatures by the wall thickness (heights of the stepped portions 403a and 404a described later).
  • the curvature of the third piece 403 and the fourth piece 404 is smaller than the curvature of the first piece 401 and the second piece 402.
  • the first piece 401 and the third piece 403 face each other at regular intervals.
  • the first piece 401 has a stepped portion 401a that narrows the facing distance from the third piece 403 by the wall thickness.
  • the third piece 403 has a stepped portion 403a that narrows the distance between the third piece 403 and the first piece 401 by the thickness of the wall.
  • the second piece 402 and the fourth piece 404 face each other at a constant interval narrower than the distance between the first piece 401 and the third piece 403.
  • the second piece portion 402 has a stepped portion 402a that is raised by the wall thickness and is continuous with the stepped portion 401a.
  • the fourth piece 404 has a stepped portion 404a that is raised by the wall thickness and is continuous with the stepped portion 403a.
  • the first piece 401 and the second piece 402 are continuous via the stepped portions 401a and 402a.
  • the third piece 403 and the fourth piece 404 are continuous via the stepped portions 403a and
  • the fifth piece 405 and the sixth piece 406 each define one surface (flat surface) of the frame 400 in the Y direction (extension direction of the axis AX).
  • the fifth piece 405 is bridged between the first piece 401 and the third piece 403.
  • the sixth piece 406 is bridged between the second piece 402 and the fourth piece 404.
  • the seventh piece 407 defines a surface (flat surface) on the other side of the frame 400 in the Y direction.
  • the seventh piece 407 is bridged between the continuous portion between the first piece 401 and the second piece 402 and the continuous portion between the third piece 403 and the fourth piece 404.
  • the fifth piece 405, the sixth piece 406, and the seventh piece 407 face each other at regular intervals.
  • the first piece 401 has a through hole 401b
  • the third piece 403 has a through hole 403b having the same diameter as the through hole 401b.
  • the through holes 401b and 403b are arranged so that the straight line L1 connecting the centers passes through the center point C, respectively.
  • the center point C is an arbitrary point on the axis AX.
  • the second piece 402 has a shaft 402b
  • the fourth piece 404 has a shaft 404b having the same diameter as the shaft 402b.
  • the axes 402b and 404b are arranged so that the straight line L2 connecting the centers passes through the center point C, respectively.
  • the shafts 402b and 404b have a shaft diameter slightly smaller than the hole diameters of the through holes 401b and 403b so as to be inserted through the through holes 401b and 403b and rotatably supported.
  • the length (height) of the shafts 402b and 404b is substantially the thickness of each piece 402 and 404, and is substantially the same as the step (height) of the step portions 401a and 403a.
  • the first piece 401 has a curved portion 401c at one corner of an end portion opposite to the step portion 401a.
  • the third piece 403 has a curved portion 403c at one corner of an end portion opposite to the step portion 403a.
  • the curved portions 401c and 403c are curved along the peripheral edges of the through holes 401b and 403b with the same curvature.
  • the second piece portion 402 has a curved portion 402c at an end portion opposite to the step portion 402a.
  • the fourth piece 404 has a curved portion 404c at an end opposite to the stepped portion 404a.
  • the curved portions 402c and 404c are curved along the peripheral surfaces of the shafts 402b and 404b with the same curvature.
  • the pieces 400 having such a configuration are connected as shown in FIG. 12 by having adjacent ones insert the shaft 402b through the through hole 401b and the shaft 404b through the through hole 403b in order.
  • a series of chains 104 are formed by connecting a plurality of frames 400.
  • Each straight line L1 connecting the centers of the through holes 401b and 403b and each straight line L2 connecting the centers of the shafts 402b and 404b intersect at the center point C for each piece 400 constituting the chain 104.
  • the chain 104 is continuously formed from one end 104a to the other end 104b in an arc shape along the rotation direction.
  • One end 104a of the chain 104 is fixed to the second cylinder member 31, and the other end 104b is fixed to the holding member 10.
  • the fixing method may be any method such as screwing or fixing via a fixing tool such as a bracket.
  • the internal space defined by the seven pieces 401 to 407 of each frame 400 is continuously formed.
  • a portion in which a plurality of pieces 400 are connected to form a series of internal spaces, in short, a plurality of connected pieces 400 correspond to a wiring portion 1b.
  • the lead wire 1a is wired through the wiring portion 1b, that is, the internal space (wiring space) of the plurality of connected frames 400 (in other words, the chain 104).
  • FIG. 13 and 14 show the connection mode of the frame 400.
  • the shaft 404b (402b) of the other piece 400b is inserted into the through hole 403b (401b) of the one piece 400a.
  • the frames 400a and 400b rotate relatively around the shaft 404b (402b).
  • FIG. 13 is a diagram schematically showing an embodiment in which the rotation angles of the two connected frames 400a and 400b are the minimum.
  • FIG. 14 is a diagram schematically showing an embodiment in which the rotation angles of the two connected frames 400a and 400b are maximum.
  • the rotation angle is an angle (angle ⁇ as shown in FIG. 14) in which the other frame 400b is tilted with respect to one frame 400a in the two connected frames 400a and 400b.
  • the two frames 400a and 400b rotate relatively between the minimum rotation angle position shown in FIG. 13 and the maximum rotation angle position shown in FIG.
  • the rotatable range of the two frames 400a and 400b is between the minimum rotation angle ( ⁇ is approximately 0 °) shown in FIG. 13 and the maximum movable angle ( ⁇ is approximately 90 °) shown in FIG. Has been done. Since the curved portion 403c (401c) is provided, the two frames 400a and 400b can rotate without interfering with the end portion 403d (401d) of the frame 400a and the stepped portion 404a (402a) of the frame 400b. Rotate with.
  • the two frames 400a and 400b have a stepped portion 403a (401a) of the frame 400a and a fourth piece portion 404 (second piece portion 402) of the frame 400b. It rotates in the rotatable range without interfering with it.
  • the end portion 403d (401d) of the frame 400a and the stepped portion 404a (402a) of the frame 400b interfere with each other, and further rotation of the frames 400a and 400b is hindered.
  • the end portion 403d (401d) is an end portion of the third piece portion 403 (first piece portion 401) that is located on the opposite side of the step portion 403a (401a) and has a curved portion 403c (401a).
  • the side portions 403e (401e) of the frame 400a and the stepped portion 404a (402a) of the frame 400b interfere with each other, and further rotation of the frames 400a and 400b is hindered.
  • the side portion 403e (401e) is a side portion continuous with the curved portion 403c (401a) of the two side portions of the third piece portion 403 (first piece portion 401).
  • the end portion 403d (401d), the side portion 403e (401e), and the step portion 404a (402a) are regulating portions that limit the relative rotation of the adjacent frames 400a and 400b to the rotatable range.
  • the two frames 400a and 400b that are connected and adjacent to each other rotate relative to each other about the shaft 404b (402b), so that the internal space of the frames 400a and 400b (wiring portion 1b).
  • (Part) changes its form within the range of these rotatable ranges. That is, the form of the wiring portion 1b of the chain 104 formed by connecting the plurality of pieces 400 changes in a range in which the rotatable regions of the adjacent pieces 400 are sequentially continuous. Therefore, when the rotating unit 30 rotates, the folded-back portion 1c of the chain 104 is displaced along the rotation direction. In other words, the folded position of the wiring portion 1b changes along the rotation direction.
  • the lead wire 1a also changes to the same form as the wiring portion 1b (in short, the chain 104) in response to the folding position of the wiring portion 1b, that is, the displacement of the folding portion 1c, and at the position of the folding portion 1c. It will be folded back.
  • the lead wire 1a is wired in the wiring portion 1b, that is, the internal space of the plurality of connected tops 400, so that the lead wire 1a does not deviate from the internal space. Therefore, when the rotating unit 30 rotates, it is possible to prevent the position of the lead wire 1a from becoming indefinite between the rotating unit 30 and the holding member 10.
  • the wiring portion 1b is deformable within a range in which the rotatable areas of adjacent frames 400 are sequentially continuous. Therefore, the deformable range of the wiring portion 1b, that is, the chain 104, can be limited within such a range. As a result, the runaway (repulsion) of the lead wire 1a can be stopped within the deformable range of the chain 104. That is, it is possible to prevent the lead wire 1a connecting between the rotating unit 30 and the holding member 10 from violently violently during the rotation of the rotating unit 30 between the two, and to keep the lead wire 1a within a desired range in a desired form. Can be wired. Therefore, the lead wire 1a can be appropriately protected.
  • the chain 104 is configured by connecting a plurality of frames 400 having the same shape. Therefore, as compared with the case where a chain is formed by connecting several different types of frames, for example, the mold cost and the like can be reduced, and the manufacturing cost of the chain 104 can also be suppressed.
  • Insulation material 33 ... Louver drive mechanism, 34 ... motor, 40 ... louver cover, 51, 52, 53 ... wind direction plate, 90 ... fan motor, 91 ... blade, 92 ... first cylinder member, 94 ... rectifying plate, 100, 200 ... wiring protection structure, 101 ... Protective member, 102 ... Guide member, 103 ... Coil spring (coil spring), 104 ... Chain, 300 ... Metal wire, 400, 400a, 400b ... Top, AD ... Air passage, AX ... Axis, C ... Center point, L1 , L2 ... Straight line connecting the centers, ⁇ ... Tilt angle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
PCT/JP2020/013338 2020-03-25 2020-03-25 配線保護構造、および空気調和機の室内ユニット WO2021192094A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2020/013338 WO2021192094A1 (ja) 2020-03-25 2020-03-25 配線保護構造、および空気調和機の室内ユニット
CN202080098886.1A CN115335646B (zh) 2020-03-25 2020-03-25 布线保护构造及空调机的室内单元
JP2022509881A JP7625580B2 (ja) 2020-03-25 2020-03-25 配線保護構造、および空気調和機の室内ユニット
JP2024155476A JP2024161287A (ja) 2020-03-25 2024-09-10 吹出口ユニット、および空気調和機の室内ユニット

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PCT/JP2020/013338 WO2021192094A1 (ja) 2020-03-25 2020-03-25 配線保護構造、および空気調和機の室内ユニット

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JP2003232297A (ja) * 2002-02-08 2003-08-22 Sharp Corp 送風装置
JP2019124352A (ja) * 2018-01-12 2019-07-25 廣達電腦股▲ふん▼有限公司 ケーブル用の保護装置
JP2020030025A (ja) * 2018-08-24 2020-02-27 株式会社富士通ゼネラル 天井埋込型空気調和機

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JP7625580B2 (ja) 2025-02-03
JPWO2021192094A1 (enrdf_load_stackoverflow) 2021-09-30
CN115335646A (zh) 2022-11-11
JP2024161287A (ja) 2024-11-15

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