WO2021166153A1 - 空気調和機室外機の配線固定構造 - Google Patents

空気調和機室外機の配線固定構造 Download PDF

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Publication number
WO2021166153A1
WO2021166153A1 PCT/JP2020/006772 JP2020006772W WO2021166153A1 WO 2021166153 A1 WO2021166153 A1 WO 2021166153A1 JP 2020006772 W JP2020006772 W JP 2020006772W WO 2021166153 A1 WO2021166153 A1 WO 2021166153A1
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WO
WIPO (PCT)
Prior art keywords
wiring
wiring fixing
power supply
supply line
outdoor unit
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/006772
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English (en)
French (fr)
Japanese (ja)
Inventor
容周 申
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2020/006772 priority Critical patent/WO2021166153A1/ja
Priority to JP2022501503A priority patent/JPWO2021166153A1/ja
Publication of WO2021166153A1 publication Critical patent/WO2021166153A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus

Definitions

  • the present disclosure relates to an air conditioner outdoor unit equipped with a compressor, and particularly to a wiring fixing structure for fixing wiring such as a power supply line drawn from the outside.
  • the air conditioner outdoor unit (hereinafter referred to as the outdoor unit) is equipped with a compressor, a terminal block, and the like.
  • a wiring port is formed in the housing of the outdoor unit, and a power supply line is drawn into the housing from the outside through the wiring port and connected to the terminal block. Electric power is supplied to a device such as a compressor via a power line and a terminal block.
  • a wiring fixing structure (wiring fixing device) for fixing a part of the power supply line to a valve bed (bracket) provided in the housing is provided.
  • the wiring fixing device of Patent Document 1 is composed of a through hole formed in a wiring fixing portion formed of a part of a bracket and a tubular elastic member having a notch formed at a predetermined angle between the inner and outer circumferences. ing.
  • the present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide a wiring fixing structure for an air conditioner outdoor unit that improves workability during installation and maintenance service.
  • the wiring fixing structure of the air conditioner outdoor unit is the wiring fixing structure of the air conditioner outdoor unit provided with a valve bed having a substrate portion in which a valve installation groove is formed and a terminal block to which a power supply line is connected. It has a structure, the substrate portion of the valve bed, and a wiring fixing portion formed by cutting out a part of the substrate portion, and between the substrate portion and the wiring fixing portion. An inner peripheral hole is formed which is surrounded by a peripheral wall including the substrate portion and the wiring fixing portion and accommodates a part of the power supply line toward the terminal block, and the peripheral wall is formed with one of the power supply lines. A gap through which the portion passes is formed, and the gap is smaller than a specified value of the thickness of the power supply line.
  • the power supply line can be easily fixed and removed from the valve bed through the gap, and installation and maintenance services can be performed. Workability at the time can be improved.
  • FIG. It is a perspective view which shows the structure of the air conditioner outdoor unit which concerns on Embodiment 1.
  • FIG. It is a schematic front view which shows the internal structure of the air conditioner outdoor unit of FIG.
  • FIG. It is a perspective view which shows the internal structure of the air conditioner outdoor unit of FIG.
  • FIG. It is a top view which shows the state which the valve bed of FIG. 4 holds a wiring.
  • FIG. It is a perspective view of the valve bed provided with the wiring fixing structure which concerns on Embodiment 2.
  • FIG. It is a top view which shows the state which the valve bed of FIG. 6 holds a wiring.
  • FIG. It is a perspective view of the valve bed provided with the wiring fixing structure which concerns on Embodiment 3.
  • FIG. 8 It is a top view which shows the state which the valve bed of FIG. 8 holds two wirings. It is a figure explaining the structure of the two claws of the valve bed of FIG. It is a perspective view of the valve bed provided with the wiring fixing structure which concerns on Embodiment 4.
  • FIG. It is a top view which shows the state which the valve bed of FIG. 11 holds two wirings.
  • FIG. shows the structure of the cover part of the wiring fixing structure which concerns on Embodiment 4.
  • FIG. 1 is a perspective view showing a configuration of an air conditioner outdoor unit according to the first embodiment.
  • the arrow X direction represents the width direction of the air conditioner outdoor unit
  • the arrow Y direction represents the depth direction of the air conditioner outdoor unit
  • the arrow Z direction represents the height direction of the air conditioner outdoor unit. ..
  • the air conditioner outdoor unit may be simply referred to as the outdoor unit 100.
  • the housing of the outdoor unit 100 includes a top panel 1, a bottom plate 5 having legs 5a, a front panel 2 on which an air outlet 2a is formed, a right side panel 4, and a service. It is composed of a panel 3.
  • the top panel 1 constitutes the upper surface of the housing
  • the bottom plate 5 constitutes the bottom surface of the housing
  • the front panel 2 constitutes the left side portion of the front surface of the housing and the front side portion of the left side surface.
  • the right side panel 4 constitutes the rear side portion of the right side surface of the housing and the right side portion of the rear surface
  • the service panel 3 constitutes the right side portion of the front surface of the housing and the front side portion of the right side surface.
  • FIG. 2 is a schematic front view showing the internal configuration of the air conditioner outdoor unit of FIG. FIG. 2 shows a state in which the top panel 1, the front panel 2, and the service panel 3 of the outdoor unit 100 shown in FIG. 1 are removed.
  • the outdoor unit 100 is connected to an indoor unit (not shown) via a pipe to form an air conditioner.
  • the right side panel 4 of the housing is formed with a lead-in port 4a through which pipes and wiring drawn into the housing from the outside are inserted.
  • the entrance 4a may be formed at any place in the housing.
  • the outdoor unit 100 includes a housing, a compressor 9, an outdoor heat exchanger 6, a blower 7, an electric component 8, a terminal block 30, and the like.
  • the electrical product 8 has a control board provided with a microcomputer or the like, and constitutes a control device that controls the operation of the entire air conditioner.
  • the terminal block 30 has a terminal to which the power supply line 31 drawn in through the lead-in port 4a is connected. Further, wirings (not shown) connected to the compressor 9, the blower 7, the electric product 8, and the like are connected to the terminal block 30.
  • the indoor unit has an indoor heat exchanger and an expansion valve.
  • the compressor 9 mounted on the outdoor unit 100, the outdoor heat exchanger 6, the indoor heat exchanger mounted on the indoor unit, and the expansion valve are connected by a plurality of pipes to form a refrigerant circuit.
  • the compressor 9 is driven by the electric power supplied through the power supply line 31, the refrigerant circulates in the refrigerant circuit, and the space in which the indoor unit is installed is air-conditioned.
  • the pipe of the outdoor unit 100 will be referred to as a refrigerant pipe 20 to distinguish it from other pipes.
  • the pipe connecting the indoor unit and the outdoor unit is referred to as a connection pipe 25 to distinguish it from the others.
  • Two of each of the refrigerant pipe 20 and the connecting pipe 25 are provided corresponding to the liquid pipe and the gas pipe.
  • the outdoor unit 100 includes a valve 21 provided at the end of the refrigerant pipe 20 of the outdoor unit 100, and a valve bed 10 composed of sheet metal or the like and to which the valve 21 is fixed.
  • a connection pipe 25 drawn in through the lead-in port 4a is connected to the valve 21.
  • two valves 21 of a gas valve and a liquid valve are provided, the refrigerant pipe 20 of the gas pipe and the connection pipe 25 are connected by the gas valve, and the refrigerant pipe 20 and the connection pipe 25 of the liquid pipe are connected by the liquid valve. Be connected.
  • the valve 21 is fixed to the valve bed 10 in order to reduce the load on the refrigerant pipe 20 and the connecting pipe 25 on the valve 21.
  • FIG. 3 is a perspective view showing the internal configuration of the air conditioner outdoor unit of FIG.
  • the top panel 1 and the service panel 3 of the outdoor unit 100 shown in FIG. 1 are removed, the compressor 9, the electric component 8, the two valves 21, and the two refrigerant pipes 20 are removed, and the power supply line is shown.
  • the outdoor unit 100 with the 31 removed is shown.
  • the internal configuration of the outdoor unit 100 will be described with reference to FIGS. 2 and 3.
  • the compressor 9, the outdoor heat exchanger 6, the blower 7, the electric component 8, the terminal block 30, and the valve bed 10 are housed in the housing of the outdoor unit 100.
  • the compressor 9 and the outdoor heat exchanger 6 are installed on the bottom plate 5, respectively.
  • the outdoor heat exchanger 6 is arranged between the front panel 2 and the right side panel 4 so as to form a part of the outer periphery of the outdoor unit 100, and is exposed to the outside air.
  • the outdoor heat exchanger 6 includes a first heat exchange portion 6a forming the rear side portion of the left side surface of the outdoor unit 100, a second heat exchange portion 6b forming the left side portion of the rear surface of the outdoor unit 100, and a bending portion 6c. And have.
  • the first heat exchange section 6a and the second heat exchange section 6b are connected by the bent portion 6c, and the outdoor heat exchanger 6 has a substantially L-shape in a plan view (see FIG. 3).
  • the outdoor unit 100 has a blower support portion 40 for supporting the blower 7, a separator 50 for dividing the space inside the outdoor unit 100, and a control box 70 for accommodating the electric component 8.
  • the blower 7 is attached to the blower support portion 40 at the same height as the outlet 2a of the front panel 2, and the blower support portion 40 to which the blower 7 is attached is a second heat exchange portion arranged on the rear surface of the outdoor unit 100. It is attached to 6b. Further, the lower end of the blower support portion 40 is fixed to the bottom plate 5 of the housing. In this way, the blower 7 is fixed to the outdoor heat exchanger 6 and the housing via the blower support portion 40.
  • the separator 50 is installed on the upper surface of the bottom plate 5.
  • the separator 50 has a separator flat plate portion 50a arranged on the front side and a curved portion 50b arranged on the back side in the space inside the outdoor unit.
  • the separator flat plate portion 50a divides the space inside the outdoor unit 100 into a machine room Sb in which the compressor 9 and the like are housed and a blower room Sa in which the blower 7 is housed.
  • the separator flat plate portion 50a is arranged between the blower 7 and the compressor 9 in the width direction (arrow X direction) of the outdoor unit 100, and the blower room Sa is formed on the left side of the separator 50.
  • the machine room Sb is formed on the right side of the separator 50.
  • a part of the second heat exchange portion 6b of the outdoor heat exchanger 6 extends to the right side of the separator flat plate portion 50a.
  • the extended portion of the second heat exchange portion 6b is referred to as an extending portion 6be.
  • the curved portion 50b of the separator 50 is curved from the rear end to the right side of the separator flat plate portion 50a so as to cover the front surface and the right surface of the extending portion 6be of the second heat exchange portion 6b, and the right end portion is bent rearward. It has a shape.
  • valve bed 10 One end of the valve bed 10 is fixed to the separator 50, the other end is fixed to the right side panel 4, and the valve bed 10 is arranged in front of the compressor 9. Both ends of the control box 70 are supported by the separator 50 and the right side panel 4, and the control box 70 is arranged above the machine room Sb. A terminal block 30 is attached to the lower surface of the control box 70.
  • the blower 7, the outdoor heat exchanger 6, and the blower support 40 are arranged in the blower room Sa, and the compressor 9, the electric component 8, the terminal block 30, the refrigerant pipe 20, and the valve are arranged in the machine room Sb.
  • the valve bed 10 is arranged.
  • the compressor 9, the valve 21, and the valve bed 10 are arranged in the lower part of the machine room Sb, and the electric component 8 and the terminal block 30 are arranged in the upper part of the machine room Sb.
  • the valve 21 and the valve bed 10 are arranged on the front side of the compressor 9 in the machine room Sb.
  • the valve bed 10 is made of a strip-shaped sheet metal or the like, and the longitudinal direction and the lateral direction are the width direction (arrow X direction) and the height direction (arrow Z direction) of the outdoor unit 100. It is installed in the housing so as to be. Further, the valve bed 10 of the present disclosure has a wiring fixing portion 11 for fixing the power supply line 31. The wiring fixing portion 11 will be described later.
  • the outdoor unit 100 is provided with a wiring fixing structure for fixing the power supply line 31 which is drawn into the housing through the lead-in port 4a and connected to the terminal block 30 in the middle of wiring.
  • the wiring fixing structure is composed of a part of the valve bed 10.
  • FIG. 4 is a perspective view of a valve bed provided with a wiring fixing structure according to the first embodiment.
  • FIG. 5 is a plan view showing a state in which the valve bed of FIG. 4 holds the wiring.
  • the valve bed 10 is formed from the substrate portion 12 on which the valve 21 (see FIG. 2) is installed, the mounting portions 13 provided on both sides of the substrate portion 12, and the substrate portion 12. It has a wiring fixing portion 11 provided so as to project.
  • the wiring fixing portion 11 accommodates a part of the power supply line 31 facing the terminal block 30.
  • the wiring fixing portion 11 provided on the substrate portion 12 of the valve bed 10 and the upper and lower portions of the wiring fixing portion 11 on the substrate portion 12 correspond to the wiring fixing structure.
  • the configuration of the valve bed 10 will be described with reference to FIGS. 2 to 5.
  • the left side mounting portion 13 has an L-shape including one end of the substrate portion 12, that is, a side surface portion extending forward from the left end, and a front surface portion bent from the side surface portion to the left side. Further, the mounting portion 13 on the right side has an L-shape including the other end of the substrate portion 12, that is, the side surface portion extending rearward from the right end and the rear surface portion extending rearward from the rear end of the side surface portion. Screw holes 13a are formed in the front surface portion of the left side mounting portion 13 and the rear surface portion of the right side mounting portion 13, respectively.
  • the left side mounting portion 13 is fixed to the front end portion of the separator 50 with screws or the like
  • the right side mounting portion 13 is the right side panel 4 constituting the rear part of the right side surface of the housing. It is fixed to the front end with screws or the like.
  • the valve bed 10 is attached to the housing by the left and right mounting portions 13, supported by the housing, and installed in the lower part of the machine room Sb.
  • the substrate portion 12 has two valve installation grooves 12e and 12f in which each valve 21 is installed, and a plurality of screw holes 12c provided around the valve installation grooves 12e and 12f. Is formed.
  • a screw for fixing the valve 21 to the substrate portion 12 is passed through the screw hole 12c.
  • the wiring fixing portion 11 is provided on the substrate portion 12 on the left side of the two valve installation grooves 12e and 12f.
  • the board portion 12 has a step portion 12d1 at a position between the two valve installation grooves 12e and 12f in the longitudinal direction (arrow X direction) and a position between the wiring fixing portion 11 and the left side mounting portion 13, respectively. 12d2 is formed.
  • the step portion formed between the two valve installation grooves 12e and 12f is referred to as the first step portion 12d1
  • the step portion formed between the wiring fixing portion 11 and the left mounting portion 13 is referred to as the second step portion. It is referred to as a part 12d2.
  • the valve installation groove in which the liquid valve is installed is referred to as a first valve installation groove 12e
  • the valve installation groove in which the gas valve is installed is referred to as a second valve installation groove 12f.
  • a portion of the substrate portion 12 arranged so as to face the service panel 3 is referred to as a flat plate portion.
  • the portion between the right side mounting portion 13 and the first step portion 12d1 is the first flat plate portion 12p1
  • the portion between the first step portion 12d1 and the second step portion 12d2 is the second flat plate portion 12p2.
  • the portion between the second step portion 12d2 and the left side mounting portion 13 is referred to as a third flat plate portion 12p3.
  • the first valve installation groove 12e is formed in the first flat plate portion 12p1
  • the second valve installation groove 12f is formed in the second flat plate portion 12p2
  • the wiring fixing portion 11 is provided.
  • the length of the second flat plate portion 12p2 located at the center in the longitudinal direction (arrow X direction) is larger than the length of the first flat plate portion 12p1 and the third flat plate portion 12p3, respectively.
  • the valve bed 10 is configured to be long.
  • the first flat plate portion 12p1, the second flat plate portion 12p2, and the third flat plate portion 12p3 are arranged substantially parallel to the front surface of the housing, respectively.
  • the first step portion 12d1 is arranged substantially perpendicular to the front surface of the housing so as to extend rearward from the second flat plate portion 12p2, and the second step portion 12d2 is arranged so as to be inclined with respect to the front surface of the housing.
  • the first flat plate portion 12p1 is located behind the second flat plate portion 12p2, and the second flat plate portion 12p2 is located behind the third flat plate portion 12p3.
  • the valve 21 fixed to the first flat plate portion 12p1 and the second flat plate portion 12p2, and the wiring fixing portion 11 provided on the first flat plate portion 12p1 are separated from the service panel 3 by a certain distance or more. Can be done and interference can be avoided. Further, even if a margin is not provided between the two valve installation grooves 12e and 12f in the longitudinal direction (arrow X direction), the space formed by the first step portion 12d1 is used to fix the valve 21 or to the valve 21. It is possible to perform operations such as connecting the connection pipe 25 of the above. Therefore, the degree of freedom of the position where the wiring fixing portion 11 is provided on the substrate portion 12 is increased.
  • the wiring fixing portion 11 is composed of a pair of claws 11a and 11b formed by a part of the substrate portion 12.
  • the pair of claws 11a and 11b are provided side by side in the longitudinal direction (arrow X direction) of the valve bed 10.
  • the pair of claws 11a, 11b and the second flat plate portion 12p2 are formed inside the pair of claws 11a, 11b so as to cut out a part of the peripheral wall.
  • a space surrounded by is formed.
  • the space formed inside the second flat plate portion 12p2 and the pair of claws 11a and 11b is referred to as an inner peripheral hole 15.
  • a portion arranged in the inner peripheral hole 15 of the power supply line 31 hanging from the terminal block 30 may be simply referred to as wiring.
  • Each of the claws 11a and 11b has a regulation piece 111 that regulates the position of wiring with respect to the substrate portion 12, and a connection piece 112 that connects the regulation piece 111 and the second flat plate portion 12p2.
  • the regulation piece 111 of the pair of claws 11a and 11b suppresses the movement of the wiring in the direction away from the substrate portion 12.
  • the regulation pieces 111 of the two claws 11a and 11b extend from the tip of the connection piece 112 in the width direction (arrow X direction) of the valve bed 10 so as to approach each other, and a gap G is formed between the tips of the regulation pieces 111. ing. In the example shown in FIGS.
  • the pair of claws 11a and 11b are provided on the substrate portion 12 so as to project forward from the second flat plate portion 12p2, and the connecting piece 112 is inclined with respect to the second flat plate portion 12p2.
  • the inner peripheral hole 15 has a trapezoidal shape in the plan view shown in FIG.
  • the pair of claws 11a and 11b consist of a pair of cut-up pieces in which the sheet metal is cut up in opposite directions and the tip is bent. As shown in FIG. 4, the pair of claws 11a and 11b are formed of a part of the sheet metal of the substrate portion 12, and an opening is formed in a portion of the second flat plate portion 12p2 facing the pair of claws 11a and 11b. Has been done.
  • the first bending angle of the cut-up is an acute angle
  • the second bending angle that is, the bending angle formed between the connecting piece 112 and the regulation piece 111 is an obtuse angle.
  • connection piece 112 of the pair of claws 11a and 11b is arranged so that the inner peripheral hole 15 tapers toward the gap G, the wiring of the connection piece 112 of the pair of claws 11a and 11b is removed. It has a function of guiding the wiring to the gap G at the time of wiring.
  • a pair of claws 11a and 11b are configured so that the size Lg of the gap G is slightly smaller than the diameter D of the wiring.
  • the size Lg of the gap G may be determined by the thickness of the standard power supply line 31 used in the air conditioner outdoor unit 100.
  • the outer peripheral portion of the wiring such as the power supply line 31 is made of an elastic insulating material. Therefore, when installing the outdoor unit 100, the wiring is easily fixed by press-fitting the wiring from the wiring fixing portion 11 formed by a part of the valve bed 10 arranged on the front side of the compressor 9 through the gap G. Can be done. When the wiring of the power supply line 31 is press-fitted, a force is applied to the regulation piece 111.
  • the pair of claws 11a so that the tip of the regulation piece 111 is displaced rearward with the boundary between the regulation piece 111 and the connection piece 112 as a fulcrum.
  • 11b is elastically deformed and the gap G is temporarily widened.
  • the wiring moves into the inner peripheral hole 15 from the widened gap G.
  • the pair of claws 11a and 11b return to their original shapes. In this way, the power supply line 31 connected to the terminal block 30 is also fixed at the lower part of the machine room Sb, and interference between the power supply line 31 and the equipment in the machine room Sb can be avoided.
  • the wiring can be removed from the wiring fixing portion 11 by a simple operation of the operator such as pulling the power supply line 31 forward while the power supply line 31 is connected to the terminal block 30.
  • a force is applied to the regulation piece 111, so that the pair of claws 11a is displaced forward so that the tip of the regulation piece 111 is displaced forward with the boundary between the regulation piece 111 and the connection piece 112 as a fulcrum.
  • 11b is elastically deformed, and the gap G is temporarily widened.
  • the wiring moves out of the inner peripheral hole 15 from the widened gap G.
  • the pair of claws 11a and 11b return to their original shapes. In this way, the fixing of the power supply line 31 connected to the terminal block 30 in the middle of wiring is released, and the wiring of the power supply line 31 can be easily moved.
  • each of the claws 11a and 11b has a regulation piece 111 and a connection piece 112, and the regulation piece 111 and the connection piece 112 have different angles with respect to the second flat plate portion 12p2, and the size of the gap G is Lg. Is configured to be smaller than the diameter D of the wiring. With these configurations, even when a forward force is applied to the wiring by the operator, the forward movement of the wiring is temporarily suppressed by the regulation piece 111, and the magnitude of the force is greater than or equal to a certain level. Only the wiring is released. Therefore, it is possible to prevent the wiring from being disconnected from the wiring fixing portion 11 by the operator unintentionally touching the wiring. Further, the size Lg of the gap G may be larger than the radius of the wiring to reduce the force applied to the wiring and the pair of claws 11a and 11b when the wiring passes through the gap G.
  • the inner peripheral hole 15 surrounded by a pair of claws 11a and 11b having a gap G and the second flat plate portion 12p2 by cutting out a part of the peripheral wall has a wiring diameter D. It has a depth width Wy of the same size as. This is to suppress the movement of the wiring in the front-rear direction (arrow Y direction). Further, the angle of the connection piece 112 with respect to the second flat plate portion 12p2 and the respective dimensions of the regulation piece 111 and the connection piece 112 are set so that the wiring can move in the left-right direction (arrow X direction) in the inner peripheral hole 15. It should be selected.
  • the inner peripheral hole 15 has a margin in the left-right direction (arrow X direction), so that the operator can wire. Can be easily moved from the gap G to the inner peripheral hole 15 when fixing the wiring to the wiring fixing portion 11. Further, in a state where the wiring is fixed to the wiring fixing portion 11, the force applied to the wiring from the wiring fixing portion 11 can be minimized. Further, a part of another power supply line may be arranged in the margin of the inner peripheral hole 15 to bundle a plurality of wirings.
  • the cut-up pieces constituting the claws 11a and 11b are formed with a constant width from the base end of the connection piece 112 to the tip of the regulation piece.
  • the same strength as that of the connection piece 112 can be ensured in the regulation piece 111 in which the force due to the wiring is applied more than the connection piece 112, and the claws 11a and 11b can be formed by the cut and raised pieces obtained by cutting and raising the substrate portion 12, so that it is easy.
  • a wiring fixing structure that can be manufactured is obtained.
  • the wiring fixing structure of the air conditioner outdoor unit includes the substrate portion 12 of the valve bed 10, the wiring fixing portion 11 formed by cutting out a part of the substrate portion 12, and the wiring fixing portion 11. Has. Between the board portion 12 and the wiring fixing portion 11, there is an inner peripheral hole 15 surrounded by a peripheral wall including the substrate portion 12 and the wiring fixing portion 11 and accommodating a part of the power supply line 31 toward the terminal block 30. It is formed. A gap G through which a part of the power supply line 31 passes is formed on the peripheral wall, and the gap G is smaller than the specified value of the thickness of the power supply line 31.
  • the power supply line 31 can be easily fixed to the valve bed 10 through the gap G, and a member mounted on the wiring is fitted and fixed in the through hole of the wiring fixing portion as in the conventional case. In comparison, less operation is required to fix and remove the wiring. Therefore, workability at the time of installation and maintenance service can be improved. Further, since the power supply line 31 is fixed only by the valve bed 10, the number of parts can be reduced and the manufacturing cost can be reduced as compared with the conventional case.
  • the wiring fixing portion 11 is composed of two claws 11a and 11b having the same distance from the substrate portion 12, and a gap G is formed between the tips of the two claws 11a and 11b.
  • each of the claws 11a and 11b has a regulation piece 111 extending along the substrate portion 12 and a connection piece 112 connecting the regulation piece 111 and the substrate portion 12. As a result, it is possible to suppress the movement of the power supply line 31 in the direction away from the substrate portion 12.
  • the lengths of the two claws 11a and 11b may be different, and the gap G may be provided on the right side or the left side of the center.
  • the inner peripheral hole 15 shown in FIG. 5 had an isosceles trapezoid, for example, the inner peripheral hole 15 was formed by different bending angles of the first cut-up of the two claws 11a and 11b. It may be a trapezoidal shape having different base angles.
  • FIG. 6 is a perspective view of the valve bed provided with the wiring fixing structure according to the second embodiment.
  • FIG. 7 is a plan view showing a state in which the valve bed of FIG. 6 holds the wiring. Further, FIG. 7 shows the diameter D before fixing the wiring.
  • FIGS. 6 to 7 a configuration different from that of the first embodiment will be described with respect to the wiring fixing structure of the second embodiment. Also in the second embodiment, since the wiring fixing structure is composed of a part of the valve bed 10, it has the same effect as that of the first embodiment.
  • the wiring fixing portion 11 of the second embodiment is composed of one claw 11c, and the wiring is fixed by the claw 11c and the second flat plate portion 12p2.
  • the claw 11c has a regulation piece 111 and a connection piece 112, and a gap G is formed between the tip of the regulation piece 111 and the second flat plate portion 12p2.
  • the claw 11c and the second flat plate portion are formed so as to cut out a part of the peripheral wall inside the claw 11c composed of the regulation piece 111 and the connection piece 112.
  • An inner peripheral hole 15 surrounded by 12p2 is formed.
  • the claw 11c is provided so as to project forward from the second flat plate portion 12p2, and the connecting piece 112 is inclined with respect to the second flat plate portion 12p2 so that the lateral width of the inner peripheral hole 15 becomes narrower toward the front. ..
  • the regulation piece 111 extends from the tip of the connection piece 112 in the longitudinal direction (arrow X direction) of the valve bed 10.
  • the claw 11c constituting the wiring fixing portion 11 is composed of a cut-up piece obtained by cutting up a sheet metal and bending the tip. As shown in FIG. 6, the claw 11c is formed of a part of the sheet metal of the substrate portion 12, and an opening is formed in a portion of the second flat plate portion 12p2 facing the claw 11c.
  • the first bending angle of the cut-up is an acute angle
  • the second bending angle that is, the bending angle formed between the connecting piece 112 and the regulation piece 111 is an obtuse angle.
  • the inner peripheral hole 15 of the wiring fixing portion 11 has a trapezoidal shape with a base angle of 90 degrees on the side facing the connection piece 112.
  • the wiring is pulled to the right side and is removed from the wiring fixing portion 11.
  • the claw 11c is formed so that the length L1 of the regulation piece 111 is larger than the diameter D of the wiring.
  • the claw 11c is configured so that the size Lg of the gap G is equal to or smaller than the diameter D of the power supply line 31.
  • the wiring is brought into contact with both the regulation piece 111 and the second flat plate portion 12p2 to cause friction, and the wiring is reliably wired even when the wiring fixing portion 11 is composed of one claw 11c. Can be fixed.
  • the size Lg of the gap G may be larger than the radius of the power supply line 31 so that the force required for the work of fixing and removing the wiring can be small.
  • the wiring fixing portion is composed of one claw 11c, and the gap G is formed between the tip portion of the claw 11c and the substrate portion 12.
  • the power supply line 31 can be fixed and detached by a simple operation of pulling the power supply line 31 sideways along the substrate portion 12.
  • FIG. 8 is a perspective view of the valve bed provided with the wiring fixing structure according to the third embodiment.
  • FIG. 9 is a plan view showing a state in which the valve bed of FIG. 8 holds two wires.
  • the wiring fixing structure according to the third embodiment will be described with reference to the configuration different from that of the first embodiment. Also in the third embodiment, since the wiring fixing structure is composed of a part of the valve bed 10, it has the same effect as that of the first embodiment.
  • the type of power supply line 31 is selected according to the amount of current to be passed, the environment in which it is used, and the like. Since the internal structure of the power supply line 31 and the thickness of the insulating material to be coated are determined by the type of the power supply line 31, the thickness of the power supply line 31 is not uniform.
  • the first power supply line 31a and the second power supply line 31b are each drawn into the outdoor unit 100 through a lead-in port 4a provided in the housing and connected to the terminal block 30.
  • the first power supply line 31a is, for example, a typical power supply line used for the outdoor unit 100.
  • the thickness of the second power supply line 31b that is, the diameter Db will be described as being smaller than the diameter Da of the first power supply line 31a.
  • the distances from the second flat plate portion 12p2 to the regulation piece 111 are different from each other in the two claws 11a and 11b. That is, when the valve bed 10 is installed in the housing of the outdoor unit 100, the positions of the regulation piece 111 of one claw 11a and the regulation piece 111 of the other claw 11b are different in the depth direction (arrow Y direction).
  • the two claws 11a and 11b are composed of a pair of cut-up pieces in which the sheet metal is cut up in opposite directions and the tip is bent.
  • the connection piece 112 of the left claw 11b is shorter than the connection piece 112 of the right claw 11a, whereby the regulation piece 111 of the left claw 11b is in the depth direction (behind the regulation piece 111 of the right claw 11a).
  • the second flat plate portion is arranged on the 12p2 side, that is, on the rear side.
  • a first gap G1 is formed between the tips of the regulation pieces 111 of the two claws 11a and 11b, and between the second flat plate portion 12p2 and the tip of the regulation piece 111 of the rear claw 11b.
  • a second gap G2 is formed in the space. Further, as shown in FIG. 9, inside the pair of claws 11a and 11b, a space surrounded by the pair of claws 11a and 11b and the second flat plate portion 12p2 so as to cut out a part of the peripheral wall. Therefore, a two-stage inner peripheral hole 15 having different depth widths Wya and Wyb on the left and right is formed.
  • the region formed between the right claw 11a and the second flat plate portion 12p2 in the inner peripheral hole 15 is referred to as the first region 15a, and is formed between the left claw 11b and the second flat plate portion 12p2.
  • the region will be described as the second region 15b.
  • the first gap G1 serves as an entrance / exit of the inner peripheral hole 15, and the outside of the wiring fixing portion 11 and the first region 15a are connected via the first gap G1. Further, the second region 15b of the inner peripheral hole 15 is connected to the first region 15a by the second gap G2.
  • the second gap G2 is formed on the right side of the second region 15b, and the first gap G1 is on the left side of the first region 15a and before the second region 15b. It is formed.
  • the first power supply line 31a and the second power supply line 31b are removed from the wiring fixing portion 11 by being pulled in the lateral direction.
  • the size Lg1 of the first gap G1 in the depth direction is set so that the first power supply line 31a connected to the terminal block 30 and passing through the first region 15a does not fall off from the wiring fixing portion 11. It is configured to be smaller than the diameter Da of the first power supply line 31a. That is, the distance between the tips of the regulation pieces 111 of the two claws 11a and 11b is smaller than the diameter Da of the first power supply line 31a. In this case, in particular, by setting the size Lg1 of the first gap G1 to be larger than the radius of the first power supply line 31a, it is possible to achieve both reliable fixing and ease of removal of the first power supply line 31a. ..
  • both the first power supply line 31a and the second power supply line 31b are fixed by the wiring fixing portion 11, even if the second power supply line 31b reaches the second gap G2, it remains in the first region 15a. Contact with the fixed first power supply line 31a and passing through the first region 15a are suppressed. Further, in the example shown in FIG. 9, since the left claw 11b is configured so that the second gap G2 is slightly smaller than the diameter Db of the second power supply line 31b, the second claw 11b in the second region 15b is formed. The movement of the power supply line 31b of 2 is suppressed.
  • FIG. 10 is a diagram illustrating the configuration of the two claws of the valve bed of FIG.
  • the claw 11a on the right side is configured to form a margin in which the first power supply line 31a can move in the left-right direction (arrow X direction) in the first region 15a. Further, as shown in FIG. 10, in a state where the first power supply line 31a is moved to the rightmost side in the first region 15a, between the first power supply line 31a and the tip of the regulation piece 111 of the left claw 11b.
  • the size Lg3 of the third gap G3 formed in is less than the diameter Db of the second power supply line 31b.
  • the second power supply line 31b which is thinner than the first power supply line 31a, from slipping through the side of the first power supply line 31a and falling off from the wiring fixing portion 11.
  • the size Lg3 of the third gap G3 is larger than the radius of the second power supply line 31b. In this case, the second power supply line 31b is pulled forward by a force equal to or higher than a certain level, so that the second power supply line 31b is removed from the wiring fixing portion 11.
  • the wiring fixing portion 11 is composed of two claws 11a and 11b having different distances from the substrate portion 12, and the first gap G1 is formed by the two claws 11a. It is formed between the tips of 11b.
  • two power supply lines 31a and 31b having different thicknesses can be fixed.
  • the first power supply line 31a and the second power supply line 31b can be fixed and detached through the first gap G1.
  • FIG. 11 is a perspective view of the valve bed provided with the wiring fixing structure according to the fourth embodiment.
  • FIG. 12 is a plan view showing a state in which the valve bed of FIG. 11 holds two wires.
  • the wiring fixing structure according to the fourth embodiment will be described with a configuration different from that of the third embodiment.
  • the wiring fixing structure of the fourth embodiment is different from the wiring fixing structure of the third embodiment in that it further has a resin lid 60.
  • the lid portion 60 is detachably attached to the wiring fixing portion 11 formed in the valve bed 10 and closes the first gap G1 (see FIG. 8) which is the entrance / exit of the inner peripheral hole 15.
  • FIG. 13 is a perspective view showing the configuration of the lid portion of the wiring fixing structure according to the fourth embodiment.
  • the lid portion 60 is composed of a rectangular parallelepiped lid main body 61 and two wall portions 62.
  • One wall portion 62 is formed so as to project from one surface at the front end portion of the lid body 61, and the other wall portion 62 projects from the other surface at the rear end portion of the lid body 61. It is formed.
  • a groove 62a is formed in each wall portion 62.
  • the tip of the right claw 11a formed on the valve bed 10 is fitted into the groove 62a on the front side of the lid 60, and the left claw formed on the valve bed 10 is fitted into the groove 62a on the rear side of the lid 60.
  • the lid portion 60 is attached to the wiring fixing portion 11.
  • the lid portion 60 can be easily attached to and detached from the wiring fixing portion 11.
  • the first gap G1 of the wiring fixing portion 11 can be closed to prevent the wiring from falling off regardless of the thickness of the power supply line 31. ..
  • the shape of the lid portion 60 is an example, and any shape may be used as long as the lid portion 60 can be attached to and detached from the wiring fixing portion 11.
  • the wiring fixing structure of the fourth embodiment is detachably attached to the valve bed 10 and has a resin lid portion 60 that closes the first gap G1.
  • the lid portion 60 is arranged only in a part of the peripheral wall of the inner peripheral hole 15, the first gap G1 which is the entrance / exit of the inner peripheral hole 15 can be opened or removed only by attaching / detaching the lid portion 60. It can be sealed, and even when a component other than the valve bed 10 is added, deterioration of workability can be suppressed.
  • the wiring fixing portion 11 is formed on the substrate portion 12 of the valve bed 10 so as to project forward, and a part of the wiring is fixed in front of the substrate portion 12.
  • the configuration of the wiring fixing portion 11 is not limited to this. If the wiring fixing portion 11 is formed of a part of the sheet metal of the substrate portion 12 and protrudes in the horizontal direction from the substrate portion 12, the wiring fixing portion 11 comes into contact with the outer periphery of a part of the power supply line 31 hanging in the vertical direction and is housing. The position can be regulated in the body and the wiring can be fixed.
  • the two claws 11a and 11b of the first, third and fourth embodiments were formed at the same position in the height direction (arrow Z direction), but the present invention is not particularly limited to this, and one of the two claws 11a and 11b is formed in the substrate portion 12.
  • the claw 11a and the other claw 11b may be formed at different height positions.
  • the size of the gaps G and G1 between the two claws 11a and 11b is defined by the distance between the virtual line extending the tip of one claw 11a in the vertical direction and the tip of the other claw 11b.
  • the board portion 12 of the valve bed 10 of the first embodiment is provided mainly along the front surface of the outdoor unit, and the wiring fixing portion 11 is formed on the board portion 12.
  • the valve bed 10 may have a substrate portion 12 provided along the side surface of the outdoor unit 100.
  • a wiring fixing portion 11 projecting to the right side is formed on the substrate portion 12 provided along the right side surface of the outdoor unit 100.
  • a plurality of wiring fixing portions 11 may be provided on the valve bed 10. As a result, the wiring position can be changed and fixed during maintenance, so that the device can be easily accessed regardless of the position of the device to be inspected, and workability is improved.
  • the wiring fixing structure of the first and second embodiments can be configured to further include a lid portion that closes the gap G.
  • the shape of the lid may be appropriately changed according to the shape of the portion of the valve bed 10 to which the lid is attached.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Other Air-Conditioning Systems (AREA)
PCT/JP2020/006772 2020-02-20 2020-02-20 空気調和機室外機の配線固定構造 Ceased WO2021166153A1 (ja)

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PCT/JP2020/006772 WO2021166153A1 (ja) 2020-02-20 2020-02-20 空気調和機室外機の配線固定構造
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52166800U (https=) * 1976-06-11 1977-12-17
JPH04336500A (ja) * 1991-05-14 1992-11-24 Fujitsu Ltd 伝導冷却構造
JP2011075231A (ja) * 2009-09-30 2011-04-14 Mitsubishi Heavy Ind Ltd 空気調和機の配線固定装置
JP2011237066A (ja) * 2010-05-07 2011-11-24 Daikin Industries Ltd 空気調和装置の室外ユニット
JP2015004464A (ja) * 2013-06-19 2015-01-08 三菱電機株式会社 空気調和機
WO2016132456A1 (ja) * 2015-02-17 2016-08-25 三菱電機株式会社 室外機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52166800U (https=) * 1976-06-11 1977-12-17
JPH04336500A (ja) * 1991-05-14 1992-11-24 Fujitsu Ltd 伝導冷却構造
JP2011075231A (ja) * 2009-09-30 2011-04-14 Mitsubishi Heavy Ind Ltd 空気調和機の配線固定装置
JP2011237066A (ja) * 2010-05-07 2011-11-24 Daikin Industries Ltd 空気調和装置の室外ユニット
JP2015004464A (ja) * 2013-06-19 2015-01-08 三菱電機株式会社 空気調和機
WO2016132456A1 (ja) * 2015-02-17 2016-08-25 三菱電機株式会社 室外機

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