WO2018096697A1 - 電装ボックス - Google Patents

電装ボックス Download PDF

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Publication number
WO2018096697A1
WO2018096697A1 PCT/JP2017/006791 JP2017006791W WO2018096697A1 WO 2018096697 A1 WO2018096697 A1 WO 2018096697A1 JP 2017006791 W JP2017006791 W JP 2017006791W WO 2018096697 A1 WO2018096697 A1 WO 2018096697A1
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WO
WIPO (PCT)
Prior art keywords
power cord
electrical
guide portion
guide
wiring
Prior art date
Application number
PCT/JP2017/006791
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
光徳 西田
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Priority to CN201780053441.XA priority Critical patent/CN109964549B/zh
Priority to JP2018552387A priority patent/JP6856663B2/ja
Publication of WO2018096697A1 publication Critical patent/WO2018096697A1/ja

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    • 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
    • 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 invention relates to an electrical box provided in an indoor unit of an air conditioner.
  • An air conditioner is generally composed of an indoor unit (indoor unit) arranged indoors and an outdoor unit (outdoor unit) arranged outdoors. Each of these units is connected to each other by refrigerant piping and electrical wiring. Further, the indoor unit is provided with a power cord having a plug for connecting to a power source at the tip. The electrical wiring and the power cord are connected to an electrical board that controls the air conditioner.
  • the indoor unit In order to hold and fix the electrical board, the indoor unit is provided with an electrical box (also called an electrical component box). A plurality of electrical wirings and a power cord are connected to the electrical board in the electrical box. For this reason, electrical wiring and power cords (power wiring) should be installed in appropriate positions in the electrical box (that is, attached to the equipment without moving the power cord to the extent that it does not adversely affect the quality of the power cord). Is required.
  • the power cord that supplies power to the indoor unit should be attached to the electrical box using a fixed part such as a screw or cord clamp to ensure sufficient tensile strength in consideration of safety. It has been.
  • Patent Document 1 proposes fixing a power cord and an electric wiring without using a cord clamp.
  • the power cord K is formed between the peripheral surface portion of the rear plate of the unit main body and the front panel as a configuration for arranging the power cord, and extends from the electrical component box.
  • the fixing force also varies due to variations in the combination of the components. . Therefore, until the assembly of the product is completed, the power cord is not completely positioned and is in an unstable state. Therefore, for example, there is a problem in that the power cord is displaced from a predetermined position during transportation of the electrical box that is being assembled.
  • the power cord has different thickness (diameter) and hardness depending on the corresponding voltage and current.
  • the size of the gap portion is constant, so the diameter is A small and relatively soft power cord can be easily attached, but it may be difficult to attach a hard power cord having a large diameter.
  • the power cord having a small diameter and a relatively soft power cord has a weak fixing force and is likely to come off during transportation.
  • an object of one aspect of the present invention is to provide an electrical box in which various types of power cords and the like can be installed at appropriate positions.
  • An electrical box accommodates an electrical board.
  • the electrical box includes a board installation part on which an electrical board is arranged and a wiring attachment part to which a wiring connected to the electrical board is attached.
  • the wiring attachment portion protrudes from the plate-like member, the plate-like member, and is arranged on the upstream side of the wiring.
  • the second guide protrudes from the plate-like member and is arranged on the downstream side of the wiring.
  • the said 1st guide part and the said 2nd guide part are each provided with the collar part in the top part.
  • the electrical box according to one aspect of the present invention can install various types of wirings at appropriate positions.
  • FIG. 5 is a cross-sectional view showing a configuration of the electrical box shown in FIG. 4 along the line AA.
  • FIG. 6 is a cross-sectional view showing the configuration of the electrical box shown in FIG. 5 along the line BB.
  • the structure of the cord attachment part provided in the electrical equipment box is shown. It is a side view which shows the state which attached the small diameter power cord to the electrical equipment box concerning one Embodiment of this invention. It is a side view which shows the state which attached the large diameter power cord to the electrical equipment box concerning one Embodiment of this invention. It is a side view which shows the structure of the electrical equipment box concerning 2nd Embodiment. This figure shows a state where a power cord with a ferrite core is attached to the electrical box.
  • FIG. 10 It is a side view which shows the structure of the electrical equipment box concerning 2nd Embodiment. This figure is the figure which looked at the electrical equipment box shown in FIG. 10 from another direction. It is a perspective view which shows the structure of the cord attachment part of the electrical equipment box shown in FIG. It is sectional drawing which shows the structure of the electrical equipment box concerning 3rd Embodiment. This figure shows the configuration of a portion corresponding to the configuration of the electrical box shown in FIG. It is a side view which shows the structure of the electrical equipment box concerning 4th Embodiment.
  • an air conditioner including an electrical box according to an example of the present invention will be described as an example.
  • a power cord will be described as an example of wiring attached to the electrical box. Note that one embodiment of the present invention can also be applied to the case where wiring other than the power cord is attached.
  • FIG. 1 shows an external configuration of an indoor unit 1 of an air conditioner according to the present embodiment.
  • FIG. 2 shows a state where the front panel 11 of the indoor unit 1 is opened.
  • FIG. 3 shows an internal configuration of the indoor unit 1.
  • the air conditioner according to the present embodiment is a separate type air conditioner, and mainly includes an indoor unit 1 and an outdoor unit (not shown).
  • the outdoor unit is equipped with a compressor, an outdoor heat exchanger, a four-way valve, an outdoor fan, and the like.
  • a refrigeration cycle is formed by these and the indoor heat exchanger 17 (see FIG. 3) provided on the indoor unit 1 side.
  • the indoor unit 1 has a substantially rectangular parallelepiped shape, and is usually used by being hung on the upper part of the wall of the room.
  • the indoor side heat exchanger 17 is provided in the indoor unit 1.
  • the indoor side heat exchanger 17 is connected to an outdoor unit side compressor or the like via a refrigerant pipe (not shown).
  • this indoor unit 1 and the outdoor unit constitute a refrigeration cycle, and as a result, function as an air conditioner.
  • the control part which controls a refrigerating cycle is provided in the electrical equipment box 20 (refer FIG. 2) in the indoor unit 1.
  • the indoor unit 1 mainly includes a housing 10, an electrical box 20, an indoor heat exchanger 17, a filter (not shown), and the like.
  • a housing 10 As shown in FIG. 2, the indoor unit 1 mainly includes a housing 10, an electrical box 20, an indoor heat exchanger 17, a filter (not shown), and the like.
  • an electrical box 20 As shown in FIG. 2, the indoor unit 1 mainly includes a housing 10, an electrical box 20, an indoor heat exchanger 17, a filter (not shown), and the like.
  • a filter not shown
  • the housing 10 is a resin product having a substantially rectangular parallelepiped shape. As shown in FIG. 1, the housing 10 mainly includes a front panel 11, a main body panel 12, and a back panel 13. As shown in FIG. 2, an indoor heat exchanger 17 and an electrical box 20 are accommodated in the housing 10. Although not shown, a filter is provided between the front panel 11 and the indoor heat exchanger 17.
  • the side on which the front panel 11 is arranged is the front side of the indoor unit 1, and the side on which the back panel 13 is arranged is the back side of the indoor unit 1.
  • the direction from the front side to the back side or from the back side to the front side of the indoor unit 1 is referred to as the front-rear direction (Z direction in FIG. 3).
  • the direction from the top to the bottom or from the bottom to the top is referred to as the vertical direction or the vertical direction (Y direction in FIG. 3).
  • a direction intersecting or orthogonal to the vertical direction is referred to as a horizontal direction or a horizontal direction (X direction in FIG. 3).
  • the side surface of the indoor unit 1 positioned on the right side is the right side surface
  • the side surface of the indoor unit 1 positioned on the left side is the left side surface.
  • a suction port 14 is provided on the upper surface of the housing 10.
  • the indoor air in which the indoor unit 1 is installed is taken into the indoor unit 1 from the suction port 14.
  • a filter is disposed directly below the suction port 14.
  • the front panel 11 is located on the front surface (front surface) of the housing 10.
  • the front panel 11 is attached to the main body panel 12 so as to be openable and closable.
  • FIG. 2 shows a state where the front panel 11 is open.
  • the filter appears on the front surface, but the filter is not shown in FIG. Therefore,
  • FIG. 2 shows the indoor heat exchanger 17 located on the back side of the filter.
  • the electrical equipment box 20 is arrange
  • a lower part of the main body panel 12 is provided with an outlet for sending out air sucked from the inlet, and a flap 15 is provided at the outlet so as to be opened and closed.
  • a driving motor (not shown) is connected to the flap 15.
  • the drive motor is communicatively connected to the electrical board 29 in the electrical box 20 via electrical wiring, and is controlled from a control unit provided on the electrical board 29 disposed in the electrical box 20 during operation of the air conditioner.
  • the rotation angle of the flap 15 is adjusted according to the signal.
  • a final outlet 13a of the power cord (wiring) 90 is formed below the back side of the right side surface portion of the back panel 13.
  • the downstream side of the power cord 90 having a plug at the tip exits from the indoor unit 1 through the final outlet 13a.
  • the position of the final outlet 13a of the power cord 90 described here is an example of the present invention, and the present invention is not limited to this configuration.
  • the indoor heat exchanger 17 is a combination of a plurality of heat exchangers such as a roof (inverted V shape) covering a crossflow fan (not shown).
  • Each heat exchanger has a large number of radiating fins (not shown) attached to a heat transfer tube (not shown) bent back and forth at both left and right ends, and functions as an evaporator during cooling operation. It functions as a condenser during heating operation.
  • the cross flow fan is disposed on the lower back side of the indoor heat exchanger 17.
  • the cross flow fan is connected to a drive motor (not shown).
  • the cross flow fan is rotationally driven by the drive motor during the operation of the air conditioner, sucks indoor air into the housing 10 and supplies it to the indoor heat exchanger 17. Heat-exchanged air is sent into the room.
  • the drive motor is communicatively connected to an electrical board 29 in the electrical box 20 via electrical wiring, and operates according to a control signal transmitted from a control unit provided on the electrical board 29 in the electrical box 20.
  • the electrical box 20 is disposed, for example, at the right end in the housing 10.
  • the electrical box 20 includes an electrical board 29.
  • a central processing calculation unit (control unit), a signal transmission / reception unit, and the like are mounted on the electrical board 29.
  • the electrical board 29 in the electrical box 20 is connected to each component of the refrigeration cycle via electrical wiring.
  • the control part in the electrical component board 29 controls a refrigerating cycle based on a user's instruction
  • positioning position of the electrical equipment box 20 in the indoor unit 1 of this embodiment is an example, and it is not limited to this structure in this invention.
  • the electrical board 29 in the electrical box 20 is also connected to the drive motor of the cross flow fan, the drive motor of the flap 15, the drive motor of the filter cleaning device (not shown), and the like via electrical wiring.
  • a power cord 90 (see FIG. 8) is connected to the electrical box 20. At the tip (most downstream side) of the power cord 90, a plug connected to the power source is provided. Thus, power can be supplied to the electrical board 29 in the electrical box 20 via the power cord 90.
  • the upstream side of the power cord or the upstream side in the traveling direction of the power cord means the connecting portion side with the electrical board 29, and the downstream side of the power cord or the traveling direction of the power cord. Means the side on which the plug is provided.
  • a filter (not shown) is provided between the suction port 14 and the indoor heat exchanger 17.
  • the filter captures dust and dust contained in the air taken into the indoor unit 1 from the suction port 14. Thereby, the amount of dust and dust in the air taken into the indoor unit 1 can be reduced.
  • FIG. 4 and 5 are perspective views showing the electrical box 20.
  • FIG. 4 the state which looked at the left side of the electrical equipment box 20 from the downward direction is shown.
  • FIG. 5 shows the configuration of the left side portion of the electrical box 20. 4 and 5, the positional relationship when the electrical box 20 is installed in the indoor unit 1 is indicated by arrows XYZ.
  • the arrow X corresponds to the horizontal direction or the left-right direction of the indoor unit 1.
  • the arrow Y corresponds to the vertical direction or the vertical direction of the indoor unit 1.
  • the arrow Z corresponds to the front-rear direction of the indoor unit 1.
  • the electrical box 20 is, for example, a plastic resin molded body. As shown in FIGS. 4 and 5, the electrical box 20 is mainly composed of a board installation portion 21, a cord attachment portion (wiring attachment portion) 22, a front face portion 23, a bottom portion 24, and a ferrite core arrangement portion 26. Yes.
  • the substrate installation unit 21 has a substantially flat substrate arrangement plate 25. 4 and 5, the left side surface of the substrate arrangement plate 25 is shown.
  • the electrical board 29 is attached along the right side surface of the board placement plate 25 (see FIG. 3).
  • the cord attachment portion 22 is a member for fixing the power cord 90 (see FIG. 8 and the like) connected to the electrical board 29 without moving to some extent.
  • fixing the power cord in a state where it does not move to some extent means that the power cord is maintained in a state where it does not move to the extent that the quality of the power cord is not adversely affected.
  • the power cord 90 is attached to the cord attachment portion 22 in a positioned state.
  • the cord attachment portion 22 is located below the substrate installation portion 21.
  • the present invention is not limited to this.
  • the most upstream part of the power cord 90 is connected to the electrical board 29.
  • the power cord 90 has a plug connected to the power source at the distal end side (the most downstream portion), and is connected to the outside from the final outlet 13a provided below the back side of the right side surface portion of the housing 10. It is structured to go out. Therefore, it is preferable that the cord attachment portion 22 is provided at a position along the route of the power cord 90 from the electrical board 29 to the final outlet 13a (that is, in the middle of the route).
  • the front part 23 constitutes a front part of the electrical box 20. As shown in FIG. 2, when the front panel 11 of the housing 10 is opened, the front surface portion 23 is partially exposed.
  • the bottom part 24 constitutes the bottom part of the electrical box 20.
  • the upper surface 24a of the bottom 24 is inclined downward from the front side toward the rear side.
  • the power cord 90 is partially placed on the upper surface 24a.
  • the ferrite core placement portion 26 is located on the back side of the cord attachment portion 22. A ferrite core that is arbitrarily attached to the power cord 90 is placed on the ferrite core placement portion 26.
  • the ferrite core placement portion 26 is provided with a wall portion 46 that restricts the movement of the ferrite core in the left-right direction (direction intersecting the plate-like member 51 (see FIG. 6)).
  • the electrical box 20 is provided with a first guiding part 31, a second guiding part 32, and a guiding wall 33 in order along the path of the power cord 90 from the electrical board 29.
  • the first guiding portion 31 is formed on the back surface of the front surface portion 23.
  • the 2nd guidance part and guidance wall 33 are formed on plate-like member 51 mentioned below.
  • the guide wall 33 is disposed so as to be separated from the upper surface 24 a of the bottom portion 24 by a predetermined distance and to be substantially parallel to the upper surface 24 a of the bottom portion 24. Further, the end portion on the most downstream side of the guide wall 33 is bent along the direction in which the power cord 90 is attached, and the bent portion is rounded. That is, the bent part has a curved shape.
  • the power cord 90 is guided from the electrical board 29 to the cord attachment portion 22 by the first guiding portion 31, the second guiding portion 32, and the guiding wall 33. This predetermined distance is at least a distance through which the power cord 90 can be passed.
  • an outlet E of the power cord 90 is provided at a position corresponding to the most downstream side in the traveling direction of the power cord 90.
  • a third guide portion 45 is provided as a configuration for guiding the power cord 90 to the outlet E.
  • the traveling direction of the power cord 90 that has passed through the second guide portion 42 is regulated by the third guide portion 45, and goes out of the electrical box 20 from the outlet E.
  • the third guide portion 45 has a rounded shape along the direction in which the power cord 90 is attached.
  • the third guide portion 45 has a cylindrical shape having an axis in the X direction (see FIG. 4 and the like).
  • 6 and 7 show a cross-sectional configuration of the electrical box 20 where the cord attachment portion 22 is provided.
  • 6 and 7 show a cross-sectional configuration of the electrical box 20 where the cord attachment portion 22 is provided.
  • 6 and 7 the positional relationship when the electrical box 20 is installed in the indoor unit 1 is indicated by arrows XYZ.
  • the arrow X corresponds to the horizontal direction or the left-right direction of the indoor unit 1.
  • the arrow Y corresponds to the vertical direction or the vertical direction of the indoor unit 1.
  • the arrow Z corresponds to the front-rear direction of the indoor unit 1.
  • the cord attaching part 22 mainly has a plate-like member 51, a first guide part 41, a second guide part 42, a protruding part 43, and a side wall part 44.
  • the plate-like member 51 serves as a base on which the constituent members of the cord attachment portion 22 such as the first guide portion 41, the second guide portion 42, the projection portion 43, and the side wall portion 44 are arranged.
  • the 1st guide part 41, the 2nd guide part 42, the projection part 43, and the side wall part 44 are provided so that it may protrude from on the plate-shaped member 51 (refer FIG. 6).
  • the plate-like member 51 is arranged substantially parallel to the substrate arrangement plate 25 in a state having a step with the substrate arrangement plate 25.
  • the first guide portion 41 is disposed at the end on the most downstream side of the guide wall 33.
  • the upstream side of the power cord 90 in the cord attachment portion 22 is disposed.
  • the second guide portion 42 is disposed on the downstream side of the power cord 90 compared to the first guide portion 41. That is, the first guide portion 41 is provided on the upstream side in the traveling direction of the power cord 90 (side closer to the electrical board 29), and on the downstream side (side closer to the plug) in the traveling direction of the power cord 90.
  • a second guide part 42 is provided.
  • a bowl-shaped collar part 41a is provided at the tip (top) of the first guide part 41.
  • a hook-shaped hook part 42 a is provided at the tip (top) of the second guide part 42.
  • the flange portion 41a of the first guide portion 41 and the flange portion 42a of the second guide portion 42 are arranged so as to protrude from the main body portions of the guide portions 41 and 42 so that the distal end sides thereof face each other. (See FIG. 8 and the like).
  • the power cord 90 passes below the flange portion 41a of the first guide portion 41 and the flange portion 42a of the second guide portion 42, respectively (see FIG. 8 and the like).
  • the main body portion of the second guide portion 42 has a rounded shape along the direction in which the power cord 90 is attached.
  • the protruding portion 43 is disposed between the first guide portion 41 and the second guide portion 42 in the traveling direction of the power cord 90.
  • the projecting portion 43 is disposed at a position off the virtual straight line connecting the first guide portion 41 and the second guide portion 42 (see FIG. 8 and the like).
  • the protrusion 43 is disposed at a position deviating upward from the imaginary straight line connecting the first guide part 41 and the second guide part 42, but deviating downward from the imaginary straight line. It may be arranged at a different position. Then, the power cord 90 is guided to the second guide portion 42 and the like through the projection 43.
  • the protrusion 43 plays a role of changing the traveling direction of the power cord 90.
  • the main body portion of the protrusion 43 has a rounded shape along the direction in which the power cord 90 is attached.
  • a hook-shaped flange 43a is also provided at the tip (top) of the protrusion 43.
  • the collar portion 43 a is arranged so as to protrude upward from the main body portion of the projection portion 43.
  • the collar part 41a, the collar part 42a, and the collar part 43a are the shapes where the front-end
  • the side wall 44 is disposed above the protrusion 43. That is, the side wall portion 44 is arranged on the opposite side of the arrangement position of the first guide portion 41 and the second guide portion 42 with the protrusion 43 interposed therebetween.
  • the side wall portion 44 includes a first side wall 44a and a second side wall 44b that are substantially parallel to each other. When the power cord 90b having a larger diameter is attached to the cord attachment portion 22, the power cord 90b passes between the protrusion 43 and the side wall 44 (specifically, the first side wall 44a) (see FIG. 9). ).
  • the height H1 of the first guide portion 41 and the height H2 of the second guide portion are substantially the same.
  • the height H1 of the first guide portion 41 and the height H4 of the side wall portion 44 are substantially the same. That is, the height H1 of the first guide portion 41, the height H2 of the second guide portion, and the height H4 of the side wall portion 44 are substantially the same.
  • the position is lower than the height H1 of the first guide portion 41, the height H2 of the second guide portion, and the height H4 of the side wall portion 44. So that it is preferably attached. That is, it is preferable that the heights H1, H2, and H4 are defined in consideration of the diameter of the power cord 90 and the degree of floating of the power cord 90 from the plate-like member 51. Thereby, it can suppress that the various drive motors arrange
  • the height H3 of the protrusion 43 is lower than at least one of the height H1 of the first guide 41 and the height H2 of the second guide. It is preferable that according to this configuration, when the power cord 90a having a relatively small diameter is attached to the cord attaching portion 22, the power cord 90a can be disposed in the space between the flange portion 43a and the plate-like member 51 (see FIG. 8). On the other hand, when the power cord 90b having a relatively large diameter is attached to the cord attachment portion 22, the power cord 90b can pass, for example, above the flange portion 43a without passing through the space (FIG. 9). reference). Therefore, the height H3 of the protrusion 43 may be set according to the width of the large-diameter power cord 90b.
  • the height H3 of the protrusion 43 can be set as follows. That is, when the power cord 90a having a small diameter is attached to the cord attachment portion 22, the power cord 90a can be disposed in the space between the flange portion 43a and the plate-like member 51, and the power cord having a large diameter is provided. When attaching 90b to the cord attachment portion 22, the power cord 90b can be set to a height that allows the power cord 90b to pass above the collar portion 43a without passing through the space. . By setting the height H3 in this way, it can be used to determine the type of cord to be attached.
  • the arrangement position in the cord attachment portion 22 can be varied according to the difference in the diameter and hardness of each power cord.
  • the power cord 90 a having a small diameter can be made difficult to come off from the cord attachment portion 22 by being disposed in the space between the flange portion 43 a and the plate-like member 51.
  • the power cord 90b having a large diameter is allowed to pass above the flange portion 43a, so that an operator can easily attach the power cord 90b to the electrical equipment box 20 when the product is assembled.
  • Examples of the type of the power cord 90 include the following.
  • examples of the small-diameter power cord 90a include power cords such as 100V15A and 100V20A.
  • the large-diameter power cord 90b a 200V15A power cord can be cited.
  • the various power cords are collectively referred to as the power cord 90, the small-diameter power cord is referred to as the power cord 90a, and the large-diameter power cord is referred to as the power cord 90b. It describes.
  • FIG. 8 shows a state where a small-diameter power cord 90a is attached to the electrical box 20.
  • FIG. 9 shows a state where a large-diameter power cord 90b is attached to the electrical box 20.
  • the upstream side of the power cord 90 (90a and 90b) connected to the electrical board 29 is a path between the guide wall 33 and the upper surface 24a of the bottom 24 along the first guide portion 31 and the second guide portion 32. Led to.
  • the power cord 90 (90a and 90b) passes through a passage between the guide wall 33 and the upper surface 24a and is guided to the cord attachment portion 22. The path up to this point is common to the small-diameter power cord 90a and the large-diameter power cord 90b.
  • the power cord 90 includes the space between the flange portion 41a of the first guide portion 41 and the plate-like member 51, and The second guide part 42 passes through the space between the flange part 42 a and the plate-like member 51.
  • the cord attachment portion 22 can reliably supply power by passing through the space between the flange portion 43a of the projection 43 and the plate-like member 51.
  • the cord 90a can be fixed.
  • the explanation is made such that the power cord 90 is attached to the electrical box 20 from the upstream side.
  • the method for attaching the power cord 90 to the electrical box 20 is not limited to the above-described order. What is necessary is just to attach the power cord 90 by the method in which the worker at the time of product assembly is attached more efficiently.
  • the power cord 90 is connected to the distal end of each collar (the collar 41a, the collar 42a, and the collar 43a), the third guide 45, the main body of the second guide 42, the projection 43, and the guide wall 33.
  • the advancing direction is guided while partially in contact with the bent portion or the like. Therefore, as described above, these members are rounded along the direction in which the power cord is attached, thereby smoothly guiding the power cord and reducing the possibility of damaging the power cord.
  • the cord mounting portion 22 is provided in the electrical box 20 of the present embodiment, the power cord 90 can be prevented from being disconnected from the electrical box 20 during transportation. Therefore, it is possible to reduce the need for the operator to reinsert the power cord 90 during assembly, and to improve workability during assembly.
  • the power cord 90 of the electrical box 20 can be positioned and arranged without using any fixing parts. For this reason, it is possible to prevent the power cord 90 from being displaced from a predetermined position when the electrical box is transported during the assembly of the parts.
  • the first guide portion 41, the second guide portion 42, and the projection portion 43 are arranged so that the traveling direction of the power cord 90 passing through the cord attachment portion 22 is changed halfway. The position is specified. Thereby, the power cord 90 is attached in a bent state in the cord attachment portion 22. Therefore, even when the plug side of the power cord 90 is pulled, the power cord can be made difficult to move by the cord attachment portion 22, so that it is possible to prevent the power cord 90 from being disconnected or detached from the electrical board 29. it can.
  • the power cord 90 it is possible to suppress the power cord 90 from moving to the drive motor side such as a fan disposed adjacent to the side surface side of the electrical box 20.
  • the power cord 90 since the power cord 90 is attached to the cord attachment portion 22, the power cord 90 can be arranged at a certain distance from the drive motor. As a result, it is possible to avoid contact between the drive motor that generates heat during operation and the power cord 90.
  • the configuration in which the electrical box 20 is attached in the XYZ directions shown in FIG. 4 with respect to the XYZ directions of the indoor unit 1 shown in FIG. 3 has been described.
  • the arrangement position of the electrical box 20 with respect to the indoor unit 1 is not limited to this configuration.
  • the XY plane of the electrical box 20 can be arranged along the horizontal plane (XZ plane) of the indoor unit 1.
  • FIGS. 1st Embodiment A second embodiment of the present invention will be described with reference to FIGS.
  • the second embodiment is different from the first embodiment in the configuration of the power cord attached to the electrical box.
  • the structure similar to 1st Embodiment is applicable. Therefore, constituent members to which the same configuration as that of the first embodiment can be applied are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
  • a power cord 90c with a ferrite core is attached to the electrical box 20.
  • the ferrite core is used as a noise countermeasure for the power supply.
  • FIG. 10 shows a state where the power cord 90c with a ferrite core is attached to the electrical equipment box 20.
  • FIG. 10 is a diagram illustrating a left side portion when the electrical box 20 is attached to the indoor unit 1.
  • FIG. 11 shows a state where the electrical box 20 and the power cord 90c shown in FIG. 10 are viewed from the opposite side.
  • FIG. 11 is a diagram showing a right side portion when the electrical box 20 is attached to the indoor unit 1.
  • FIG. 12 is an enlarged view showing the periphery of the ferrite core placement portion 26 of the electrical box 20.
  • the power cord 90c passes through the passage between the guide wall 33 and the upper surface 24a and is guided to the cord attachment portion 22.
  • the power cord 90c passes through the space under the flange 41a of the first guide portion 41 of the cord attachment portion 22, and then the space between the protrusion 43 and the first side wall 44a. Then, it is guided to the ferrite core arrangement portion 26 provided on the back side of the cord attachment portion 22.
  • the ferrite core 91 is a cylindrical member. In the middle of the power cord 90c, the power cord 90c goes around the outer peripheral surface of the ferrite core 91 from the central space portion of the ferrite core 91 to reach the plug on the tip side.
  • the ferrite core 91 arrangement portion of the power cord 90 c is arranged in the ferrite core arrangement portion 26 of the electrical box 20. As shown in FIG. 11, positioning protrusions 26 a may be formed in the space of the ferrite core arrangement portion 26. Thereby, the ferrite core 91 can be arrange
  • the ferrite core arrangement portion 26 is provided with a wall portion 46 having a step with the plate-like member 51 and formed so as to be positioned substantially parallel to the plate-like member 51.
  • the direction of the power cord 90c that has passed through the ferrite core placement portion 26 is then changed by the third guide portion 45. That is, the traveling direction of the power cord 90 c that has passed through the ferrite core placement portion 26 is regulated by the third guide portion 45. Finally, the power cord 90c goes out of the electrical box 20 through an outlet E formed between the third guide portion 45 and the upper surface 24a. Thus, in the case of the power cord 90c with a ferrite core, it is guided to the outlet E through the ferrite core arrangement part 26 without passing through the second guide part 42.
  • the power cord 90c with a ferrite core can be positioned and arranged while changing the direction in the electrical box 20. For this reason, even when the plug side of the power cord 90 c is pulled, it is possible to prevent the power cord 90 c from coming off or coming off from the electrical board 29.
  • the power cord 90 c that has passed through the ferrite core placement portion 26 and the power cord 90 a or 90 b that has passed through the second guide portion 42 both pass through the outlet E and are outside the electrical box 20. Led to. That is, in either case, the third guide portion 45 guides the electric box 20 out.
  • the outlet E With the electrical box 20 installed in the indoor unit 1, the outlet E is located on the final outlet 13 a side of the indoor unit 1. Therefore, it becomes easy to guide the various power cords 90 a, 90 b, and 90 c exiting the electrical equipment box 20 to the final outlet 13 a of the indoor unit 1.
  • a third embodiment of the present invention will be described with reference to FIG.
  • the configuration of the cord attachment portion is different from that of the first embodiment.
  • the same structure as 1st Embodiment is applicable.
  • it demonstrates centering around the structure of the cord attachment part 122 of the electrical equipment box 120 concerning 3rd Embodiment.
  • symbol same as 1st Embodiment is attached
  • FIG. 13 shows a portion of the electrical box 120 according to the third embodiment (the peripheral portion of the cord attachment portion 122).
  • the electrical box 120 has a cord attachment portion 122.
  • the configuration other than the cord attachment portion 122 can be the same as that of the electrical box 20 of the first embodiment.
  • the cord attachment portion 122 mainly includes a plate-like member 51, a first guide portion 41, a second guide portion 42, a protruding portion 143, and a side wall portion 44.
  • a plate-like member 51 mainly includes a plate-like member 51, a first guide portion 41, a second guide portion 42, a protruding portion 143, and a side wall portion 44.
  • the structure similar to the electrical equipment box 20 of 1st Embodiment is applicable.
  • the protruding portion 143 is disposed between the first guide portion 41 and the second guide portion 42 in the traveling direction of the power cord 90. Similar to the first embodiment, the projecting portion 143 is disposed at a position deviating from an imaginary straight line connecting the first guide portion 41 and the second guide portion 42 (see FIG. 8 and the like). Then, the power cord 90 is guided to the second guide portion 42 and the like through the upper portion of the protruding portion 143. Thus, the protrusion 143 plays a role of changing the traveling direction of the power cord 90.
  • the hook-shaped flange 43a is provided at the tip (top) of the protrusion 43.
  • no flange is formed at the end (top) of the protrusion 143. That is, the protrusion 143 has a simple cylindrical shape. With this configuration, it is possible to more easily attach the power cord 90 to the cord attachment portion 122.
  • a fourth embodiment of the present invention will be described with reference to FIG.
  • the configuration of the cord attachment portion is different from that of the first embodiment.
  • the same structure as 1st Embodiment is applicable.
  • it demonstrates centering around the structure of the cord attachment part 222 of the electrical equipment box 220 concerning 4th Embodiment.
  • symbol same as 1st Embodiment is attached
  • FIG. 14 shows an electrical box 220 according to the fourth embodiment. This figure shows a state where a small-diameter power cord 90a is attached to the electrical box 220.
  • the electrical box 220 has a cord attachment portion 222.
  • the same configuration as that of the electrical box 20 of the first embodiment can be applied to the configuration other than the cord attachment portion 222.
  • the cord attaching part 222 mainly includes a plate-like member 51, a first guide part 41, a second guide part 42, a protruding part 243, and a side wall part 44.
  • a plate-like member 51 mainly includes a plate-like member 51, a first guide part 41, a second guide part 42, a protruding part 243, and a side wall part 44.
  • the structure similar to the electrical equipment box 20 of 1st Embodiment is applicable.
  • the protruding portion 243 is disposed between the first guide portion 41 and the second guide portion 42 in the traveling direction of the power cord 90a.
  • the protrusion 43 protrudes from the plate member 51.
  • the protruding portion 243 protrudes from the upper surface 24 a of the bottom portion 24. As shown in FIG. 14, the distance from the upper surface 24 a to the tip of the protrusion 243 is larger than the distance from the upper surface 24 a to the first guide portion 41 or the second guide portion 42.
  • the power cord 90a that has passed through the first guide portion 41 is guided to the second guide portion 42 and the like through the upper portion of the protruding portion 243.
  • the protrusion 243 serves to change the traveling direction of the power cord 90. For this reason, even when the plug side of the power cord 90 a is pulled, it is possible to prevent the power cord 90 a from being disconnected or detached from the electrical board 29.
  • FIG. 14 shows an example in which the small-diameter power cord 90a is attached to the electrical box 220.
  • a large-diameter power cord 90b or a power cord 90c with a ferrite core can also be attached. it can.
  • the electrical box according to one aspect of the present invention does not necessarily have to be built in the air conditioner, and can be used as an electrical box for other electrical products such as a refrigerator, a washing machine, and a microwave oven.
  • refrigerators have different power cord specifications depending on products for each country. For this reason, power cords having different diameters may be attached to refrigerators having the same configuration according to the specifications of each country.
  • the electrical box according to one embodiment of the present invention as an electrical box of such a refrigerator, each power cord having a different diameter can be installed at an appropriate position.
  • the protruding portion may protrude from the plate-like member, and a collar portion may be provided on the top portion. According to this structure, even if it is wiring with a comparatively small diameter, it can suppress more reliably that it remove
  • the height of the protruding portion may be lower than the height of at least one of the first guide portion and the second guide portion. According to this configuration, various wirings having different diameters can be arranged more appropriately.
  • the electrical box according to one aspect of the present invention protrudes from the plate-like member on the opposite side of the arrangement position of the first guide portion and the second guide portion with the protrusion interposed therebetween.
  • a side wall portion may be further provided.
  • a ferrite core arrangement portion in which a ferrite core is arranged is provided on the downstream side in the traveling direction of the wiring with respect to the protrusion, and the ferrite core
  • a third guide part that regulates the traveling direction of the wiring that has passed through the ferrite core placement part may be provided further downstream of the placement part. According to this configuration, a power cord with a ferrite core can also be attached at an appropriate position.
  • the ferrite core arrangement portion may have a wall portion that restricts the movement of the ferrite core in a direction intersecting the plate-like member. According to this configuration, the ferrite core can be more reliably fixed.
  • the electrical box further includes an outlet for the wiring, and the wiring whose traveling direction is regulated by the second guide portion and the wiring whose traveling direction is regulated by the third guide portion are the outlet. It may be led out of the electrical box through.
  • route can be guide
  • the plate-like member 51 is arranged in the vertical direction and the front-rear direction (that is, the YZ plane (see FIG. 4 and the like)), and the first guide portion 41, the second guide portion 42, and the protruding portion. 43 and the side wall part 44 were the structures which protrude in the left-right direction (namely, X direction (refer FIG. 4 etc.)) from the plate-shaped member 51.
  • FIG. 4 the arrangement direction of the plate-like member 51 and the first guide part 41, the second guide part 42, the protrusion part 43, and the side wall part 44 is the same as that of the first embodiment described above. It can also be different from the arrangement direction.
  • the plate-like member 51 is disposed in the left-right direction and the front-rear direction (that is, the XZ plane (see FIG. 4 and the like)), and the first guide part 41, the second guide part 42, and the protrusion part 43.
  • the side wall 44 may be configured to protrude from the plate member 51 in the vertical direction (that is, in the Y direction (see FIG. 4 and the like)).
  • the upper surface 24a of the bottom part 24 which comprises the bottom part of the electrical equipment box 20 can also be used as a plate-shaped member.
  • the first guide portion, the second guide portion, the protruding portion, the side wall portion, and the like are arranged on a plate-like member inclined in the front-rear direction (that is, the Z direction (see FIG. 4 and the like)).
  • the arrangement direction of each member (that is, the plate-like member, the first guide portion, the second guide portion, the protruding portion, the side wall portion, etc.) constituting the cord attachment portion is the vertical direction, the left-right direction, and the front-back direction. It is not necessary to strictly follow any of the above, and it may be inclined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Installation Of Indoor Wiring (AREA)
PCT/JP2017/006791 2016-11-22 2017-02-23 電装ボックス WO2018096697A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780053441.XA CN109964549B (zh) 2016-11-22 2017-02-23 电气盒
JP2018552387A JP6856663B2 (ja) 2016-11-22 2017-02-23 電装ボックス

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JP2016-227047 2016-11-22
JP2016227047 2016-11-22

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JP2008041798A (ja) * 2006-08-03 2008-02-21 Seiko Epson Corp ケーブル保持構造及び配線構造並びに電子機器

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JPS51144796U (zh) * 1975-05-16 1976-11-20
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JPS611757Y2 (zh) * 1980-02-29 1986-01-21
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JPS611886U (ja) * 1984-06-08 1986-01-08 ソニー株式会社 筐体におけるコ−ドの固定機構
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JPS60160021U (ja) * 1984-03-30 1985-10-24 株式会社リコー 電装ハ−ネスの固定装置
JPH07293928A (ja) * 1994-04-20 1995-11-10 Sanyo Electric Co Ltd 空気調和機
JP2008041798A (ja) * 2006-08-03 2008-02-21 Seiko Epson Corp ケーブル保持構造及び配線構造並びに電子機器

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JPWO2018096697A1 (ja) 2019-10-17
JP6856663B2 (ja) 2021-04-07
CN109964549A (zh) 2019-07-02
CN109964549B (zh) 2021-09-21

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