JP4807483B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an indoor heat exchanger, an indoor fan, the outdoor heat exchanger and the outdoor fan is provided integrally relates to an air conditioning apparatus wiring fixing structure provided with the electric instrumentation device provided for fixing the wiring.
[0002]
[Prior art]
The air conditioner is provided with an electrical device that incorporates a control board that controls the compressor, the indoor fan, and the outdoor fan. Electric wiring such as power wiring is connected to the power circuit of the control board of the electrical equipment. This electrical wiring is clamped and fixed to the wiring fixing surface of the electrical equipment using a presser.
[0003]
[Problems to be solved by the invention]
By the way, the wire diameter of the electrical wiring differs depending on the magnitude of the supplied power. For this reason, it is necessary to change the shape of the presser for holding and fixing the electrical wiring between the wiring fixing surfaces according to the wire diameter of the electrical wiring, and a plurality of types must be prepared. Therefore, the number of parts of the presser increases, and the cost of the air conditioner increases.
[0004]
An object of the present invention has been made in view of the circumstances described above, it is to provide a air conditioner that can realize cost reduction by reducing the number of parts.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are provided integrally, an indoor side chamber in which the indoor heat exchanger and the indoor fan are disposed, and the outdoor heat The exchanger and the outdoor room where the outdoor fan is arranged are partitioned by a partition plate,
In addition, in an air conditioner including an electrical device that incorporates a control board that controls the indoor fan, the outdoor fan, and the like, and that fixes electrical wiring connected to the control board to a wiring fixing surface using a presser. ,
The electrical device includes a substrate storage case having a front plate, the control board is disposed on an inner surface of the front plate facing the partition plate, and an outer surface of the front plate is used as the wiring fixing surface. The wiring fixing surface is formed with a plurality of contact portions that can contact the wiring and have different heights.
An air conditioner configured to sandwich a wiring by one of these abutting portions and the presser and to fix the wiring to the wiring fixing surface.
[0006]
The invention according to claim 2 is the invention according to claim 1, wherein the wiring fixing surface in the electrical equipment is provided with a recessed contact concave portion, a planar contact flat portion, and a bulging shape. At least two of the contact protrusions are provided as contact portions.
[0011]
The invention according to claim 1 or 2 has the following effects.
[0012]
A plurality of contact portions (at least two of a contact concave portion, a contact flat surface portion, and a contact convex portion) that can contact the wiring and have different heights are formed on the wiring fixing surface. Since the wiring is clamped by one of the pins and the holding tool and the wiring is fixed to the wiring fixing surface, the contact portion of the wiring fixing surface is selected according to the wire diameter of the wiring, and this selection is performed. Since the wiring can be fixed by the single contact portion and the holding portion, it is not necessary to prepare a plurality of types of holding portions according to the wire diameter of the wiring. As a result, the number of parts of the presser part can be reduced, and the cost can be reduced.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is an external perspective view showing an embodiment of an air conditioner according to the present invention.
[0015]
FIG. 2 is an exploded perspective view showing the air conditioner of FIG. 1 with the cabinet omitted.
[0016]
The air conditioner 10 shown in FIGS. 1 and 2 is installed through a wall (not shown) of a building, and includes an indoor heat exchanger 11, a cross flow fan 12 (FIG. 3) as an indoor fan, and an outdoor heat exchanger. 13 is an integrated air conditioner in which a propeller fan 14 as an outdoor fan, a compressor 15 and the like are integrally provided.
[0017]
The indoor heat exchanger 11, the cross flow fan 12, the outdoor heat exchanger 13, the propeller fan 14, the compressor 15, and the like described above are arranged on the bottom plate 16 to constitute an air conditioner body 17, and this air conditioner body The front side of 17 (that is, the arrangement side of the indoor heat exchanger 11 and the cross flow fan 12) is covered with the front panel 18, and the rear side (that is, the arrangement side of the outdoor heat exchanger 13, the propeller fan 14 and the compressor 15). Is covered with a cabinet 19. A front panel 18 is positioned facing the interior of the building. The cabinet 19 is installed through the wall of the building and is formed in a square tube (sleeve) shape.
[0018]
As shown in FIGS. 2 to 4, in the air conditioner body 17, a partition plate 20 is erected at a substantially central position in the front-rear direction of the bottom plate 16, and the partition plate 20 extends over the entire width direction of the bottom plate 16. Extended. With this partition plate 20, the air conditioner body 17 includes an indoor side chamber 21 in which the indoor heat exchanger 11 and the cross flow fan 12 are arranged, an outdoor heat exchanger 13, a propeller fan 14, a compressor 15, and the like. The outdoor compartment 22 is partitioned. Therefore, the front panel 18 disposed in front of the air conditioner 10 defines an indoor room 21, and the cabinet 19 disposed on the rear side of the air conditioner 10 defines the periphery of the outdoor room 22. Will do.
[0019]
The outdoor heat exchanger 13, the outdoor fan casing 23, the support legs 24 and the compressor 15 are installed on the outdoor plate 22 side of the bottom plate 16.
[0020]
The compressor 15 is sequentially connected to the outdoor heat exchanger 13, the decompression device (not shown), and the indoor heat exchanger 11 using a refrigerant pipe (not shown), thereby constituting a refrigeration cycle. During the cooling operation of the air conditioner 10, the outdoor heat exchanger 13 functions as a condenser, and the indoor heat exchanger 11 functions as an evaporator. Further, during the heating operation of the air conditioner 10, the outdoor heat exchanger 13 functions as an evaporator and the indoor heat exchanger 11 functions as a condenser.
[0021]
The outdoor fan casing 23 is connected to the outdoor heat exchanger 13 and a propeller fan 14 is disposed therein. The propeller fan 14 is rotationally driven by an outdoor drive motor 25, and the outdoor drive motor 25 is supported by the support leg 24. The outdoor chamber 22 is partitioned by an outdoor fan casing 23 into an outdoor discharge chamber 26 inside the outdoor fan casing 23 and an outdoor suction chamber 27 outside the outdoor fan casing 23.
[0022]
As the propeller fan 14 rotates, the outside air is sucked into the outdoor suction chamber 27 from the outdoor suction ports 28 on both sides of the outdoor heat exchanger 13 as shown by an arrow A in FIG. 29 is discharged into the outdoor discharge chamber 26, passes through the outdoor heat exchanger 13, and is discharged out of the outdoor discharge port 30. The outdoor heat exchanger 13 releases heat to the outside air during the cooling operation of the air conditioner 10, and takes in heat from the outside air during the heating operation.
[0023]
Further, as shown in FIG. 3, the propeller fan 14 has a slinger ring 31 that connects these blades to the outer periphery of each blade. During the cooling operation of the air conditioner 10, drain water is generated in the indoor heat exchanger 11 that functions as an evaporator. The drain water is collected in a drain pan 33 (to be described later) and then stored in the storage portion 32 of the bottom plate 16 through a drain opening 44 formed in the lower end portion of the partition plate 20. The slinger ring 31 scoops up the drain water accumulated in the storage section 32 when the propeller fan 14 rotates, and at this time, the drain water is scattered to the outdoor heat exchanger 13 functioning as a condenser. Thereby, the condensation capability of the outdoor heat exchanger 13 is improved.
[0024]
On the other hand, a drain pan 33 is installed on the indoor side chamber 21 side of the bottom plate 16, and the indoor heat exchanger 11 is placed on the drain pan 33. As shown in FIG. 5, the partition plate 20 is formed in a box shape having an opening on the indoor side chamber 21 side, and an indoor fan casing 34 is disposed in the partition plate 20.
[0025]
As shown in FIG. 3, the indoor fan casing 34 curves from a first top surface 41 (described later) of the partition plate 20 to the drain pan 33, and is adjacent to the indoor heat exchanger 11 at the lower end portion of the drain pan 33. Then, the electric heater 55 is installed. Further, the cross flow fan 12 is disposed inside the curved indoor fan casing 34. Therefore, the indoor fan casing 34 is disposed between the partition plate 20 and the cross flow fan 12.
[0026]
The cross flow fan 12 is rotationally driven by the indoor drive motor 35 shown in FIG. 4, and the cross flow fan 12 and the indoor drive motor 35 are supported by the partition plate 20. As shown in FIG. 3, the indoor fan casing 34 forms an indoor circulation chamber 36 and an outside air introduction chamber 37 on the indoor side chamber 21 side. Further, as shown in FIG. 4, an electrical room 46 for housing the electrical device 45 is formed in the indoor side chamber 21.
[0027]
As shown in FIG. 3, the indoor heat exchanger 11, the cross flow fan 12, and the electric heater 55 are disposed in the indoor circulation chamber 36. Further, an air filter 38 and a stabilizer 39 are disposed in the indoor circulation chamber 36. The air filter 38 is installed between the suction grill 40 formed on the front panel 18 and the indoor heat exchanger 11. Further, the stabilizer 39 is installed above the indoor heat exchanger 11 and is provided to bulge in the direction of the cross flow fan 12. Due to the stabilizer 39, the air in the indoor circulation chamber 36 is satisfactorily sucked into the indoor heat exchanger 11 and discharged well from the indoor heat exchanger 11. On the front panel 18, a blow-out grill 43 that guides the discharged air into the room of the building is formed above the suction grill 40.
[0028]
The rotation of the cross flow fan 12 causes the indoor air of the building to be taken into the indoor circulation chamber 36 of the indoor side chamber 21 from the suction grill 40 as shown by an arrow B in FIG. The air is sucked into the cross flow fan 12 through the heat exchanger 11 and the electric heater 55 in order, and is discharged by the cross flow fan 12 and blown into the room from the blow grill 43. The indoor heat exchanger 11 cools the indoor air taken into the indoor circulation chamber 36 during the cooling operation of the air conditioner 10 to cool the indoor air, and also heats the indoor air during the heating operation to Heat up.
[0029]
The outside air introduction chamber 37 is a component that constitutes a ventilation device 47 that takes in outside air into the indoor circulation chamber 36 of the indoor side chamber 21 through the outdoor side chamber 22 and can supply fresh air to the room interior of the building. . The ventilator 47 includes a ventilating opening 48, a ventilating shutter 49, and a ventilating vent 50A in addition to the outside air introduction chamber 37.
[0030]
In the box-shaped partition plate 20, a second top surface 42 is formed continuously with the first top surface 41 at a position lower than the first top surface 41. The second top surface 42 is disposed inside the cabinet 19 that defines the periphery of the outdoor chamber 22. Further, as shown in FIGS. 4 and 5, a plurality of the ventilation openings 48 are arranged in parallel at the same pitch in the longitudinal direction of the second top surface 42 on the second top surface 42.
[0031]
On the second top surface 42, the ventilation shutter 49 having a large number of fine holes 51 is placed. These fine holes 51 are grouped into groups, and the plurality of fine hole groups 51 </ b> A are arranged at the same pitch in the longitudinal direction of the ventilation shutter 49. The pitch of the narrow hole group 51 </ b> A is set to be approximately the same as the pitch of the ventilation openings 48 of the second top surface 42.
[0032]
Further, the ventilation shutter 49 is formed with elongated holes 52 extending in the longitudinal direction of the ventilation shutter 49 at both ends. The ventilation shutter 49 is slidably attached to the second top surface 42 of the partition plate 20 in the longitudinal direction of the second top surface 42 and the ventilation shutter 49 by screws 53 passing through the long holes 52.
[0033]
As shown in FIG. 6, by sliding the ventilation shutter 49, the ventilation opening 48 is fully opened at a position where the narrow hole group 51 </ b> A of the ventilation shutter 49 matches the ventilation opening 48, and the fine hole group 51 </ b> A does not match the ventilation opening 48. The ventilation opening 48 is fully closed at the position. Further, the opening degree of the ventilation opening 48 is adjusted to an arbitrary position such as half open and 2/3 open according to the slide position of the ventilation shutter 49. By the opening operation of the ventilation opening 48, as shown by an arrow C in FIG. 3, the outside air that has flowed into the outdoor chamber 22 is guided to the cabinet 19, and the narrow hole 51 and the second top surface 42 of the ventilation shutter 49 are guided. The air is introduced into the outside air introduction chamber 37 through the ventilation opening 48.
[0034]
Here, the second top surface 42 is configured to be inclined downward toward the outdoor side chamber 22 side. Thereby, the flow area of the external air between the 2nd top surface 42 and the cabinet 19 is expanded compared with the case where the 2nd top surface 42 is horizontal. Further, the narrow hole 51 of the ventilation shutter 49 shown in FIG. 6 is formed to have a remarkably small hole diameter as compared with the opening area of the ventilation opening 48. Thereby, this fine hole 51 functions as an air filter and is set to a hole diameter that prevents, for example, insects and the like from entering.
[0035]
As shown in FIG. 5, the ventilation / ventilation portion 50 </ b> A has a plurality of ventilation holes 50 formed in the lower portion of the indoor fan casing 34 by a cut-and-raising process or the like, and is formed in an armor door shape. A plurality of the ventilation ventilation portions 50 </ b> A are arranged in the longitudinal direction of the indoor fan casing 34 except for the position corresponding to the drain opening 44 of the partition plate 20.
[0036]
As shown in FIG. 3, when the cross flow fan 12 rotates, the pressure below the cross flow fan 12 in the indoor circulation chamber 36, that is, in the vicinity of the ventilation vent 50 </ b> A is negative. Therefore, as shown by an arrow C in FIG. 3, the outside air introduced into the outside air introduction chamber 37 through the narrow hole 51 of the ventilation shutter 49 and the ventilation opening 48 of the second top surface 42 is curved indoor fan casing. It flows downward through the outside of 34 and is led into the indoor circulation chamber 36 through the vents 50 of the plurality of ventilation vents 50A. The outside air introduced into the indoor circulation chamber 36 is mixed with the indoor air conditioned by the indoor heat exchanger 11, and as shown by an arrow B in FIG. It is introduced into the room and fresh air is supplied into the room.
[0037]
Further, as shown in FIG. 5, an operation lever 54 is integrally coupled to one end of the ventilation shutter 49. As shown in FIGS. 2 and 6, the operation lever 54 is disposed so as to extend toward the indoor heat exchanger 11 and can be operated when the front panel 18 is removed. By operating the operation lever 54 in the horizontal direction, the ventilation shutter 49 is directly slid without a wire or the like, and the opening of the ventilation opening 48 is fully opened or closed, and the ventilation opening is opened like a half-opening operation. The opening degree of 48 can be arbitrarily adjusted.
[0038]
By the way, as shown in FIG. 7, the electrical equipment 45 shown in FIGS. 2 and 4 is provided with a board storage case 57 in which the control board 56 is arranged inside and an operation knob for adjusting temperature and air volume. The operation knob box 58 and the wiring fixing structure 59 for fixing the electric wiring 60 (FIGS. 8 and 9) connected to the control board 56 are configured.
[0039]
The operation knob box 58 is fixed to the upper part of the substrate storage case 57. A cooling / heating temperature adjustment knob 61 and a cooling / warming air amount adjustment knob 62 shown in FIG. The cooling / heating temperature adjustment knob 61 and the cooling / warming air amount adjustment knob 62 are made visible by opening the operation door 63 of the front panel 18.
[0040]
The control board 56 shown in FIG. 7 is mounted with various electronic components such as transistors and capacitors, and the cross flow fan 12, the propeller fan 14, the compressor 15, etc. shown in FIG. Control is performed based on the set value set by the cool / warm air volume adjustment knob 62. Electrical wiring 60 (FIGS. 8 and 9) such as power supply wiring is connected to the power supply circuit (not shown) of the control board 56 via a terminal board (not shown).
[0041]
The wiring fixing structure 59 shown in FIG. 7 is for fixing the electrical wiring 60 (FIGS. 8 and 9) to the front plate 64 as a wiring fixing surface in the substrate storage case 57 using the pressing tool 65. As the electrical wiring 60, one having a different wire diameter depending on the amount of power supplied to the power supply circuit of the control board 56 is used. For example, when supplying 200V power to the power supply circuit, the wire diameter of the electrical wiring 60 is larger than when supplying 100V power to the power supply circuit.
[0042]
As shown in FIG. 7, the front plate 64 to which the electrical wiring 60 is fixed is formed with a plurality of contact portions 66 that can contact the electrical wiring 60 and have different heights. The contact portion 66 is configured to have a contact recess portion 67 that is recessed as compared to the front plate 64 and a contact flat portion 68 that is formed in a planar shape flush with the front plate 64. The contact recess 67 is formed corresponding to the electric wire 60 (FIG. 8) having a large wire diameter, and the contact flat portion 68 corresponds to the electric wire 60 (FIG. 9) having a small wire diameter. Is formed.
[0043]
As shown in FIGS. 7 to 9, the presser 65 is configured such that flanges 70 and 71 are integrally formed at both ends of a U-shaped presser main body 69. A pressing portion 75 having a bulging shape is formed. The flange 70 of the presser 65 can be engaged with a locking hole 72 formed on one side of the contact concave portion 67 and the contact flat surface portion 68 in the front plate 64. In addition, the flange 71 of the presser 65 uses the mounting plate 74 that is screwed into the screw recess 73 formed on the other side of the contact concave portion 67 and the contact flat surface portion 68 of the front plate 64. It is possible to fix to.
[0044]
As shown in FIG. 8A, when the wire diameter of the electrical wiring 60 is large, the electrical wiring 60 is positioned between the contact recess 67 and the presser 65 in the front plate 64, and the contact recess 67 A flange 70 of the presser 65 is inserted and locked in the one-side locking hole 72, and the flange 71 of this presser 65 is screwed into the screw hole 73 on the other side of the contact recess 67. It is fixed to the front plate 64 using As shown in FIG. 8B, the presser 65 attached to the front plate 64 in this manner causes the electric wire 60 having a large wire diameter to be interposed between the contact recess 67 and the presser 75 of the presser 65. In a state of being sandwiched between the front plates 64, the front plate 64 is fixedly held.
[0045]
Further, as shown in FIG. 9A, when the wire diameter of the electric wiring 60 is thin, the electric wiring 60 is positioned between the abutting flat surface portion 68 of the front plate 64 and the presser 65, and this abutting is performed. The flange 70 of the presser 65 is inserted and locked into the locking hole 72 on one side of the flat part 68, and the flange 71 of the presser 65 is screwed into the screw hole 73 on the other side of the contact flat part 68. It is fixed to the front plate 64 using the mounting screws 74 to be used. As shown in FIG. 9B, the presser 65 attached to the front plate 64 in this manner causes the electric wire 60 having a small wire diameter to be in contact with the abutting flat surface 68 and the presser 75 of the presser 65. The front plate 64 is fixed and held in a state of being sandwiched between the two.
[0046]
When the presser 65 is fixedly attached to the front plate 64, the dimensions L and M of the presser 75 of the presser 65, the contact recess 67, and the contact flat part 68 are the presser of the presser 65. A value that can exert a clamping force on the electrical wiring 60 so that the electrical wiring 60 does not fall off the front plate 64 when the electrical wiring 60 is sandwiched between the contact recess 67 and the contact flat portion 68. Set to
[0047]
Therefore, according to the said embodiment, there exists the following effect.
[0048]
A plurality of contact portions 66 (that is, a contact recess portion 67 and a contact flat surface portion 68) that can contact the electrical wiring 60 and have different heights are formed on the front plate 64 of the substrate storage case 57 in the electrical device 45. Since the electric wiring 60 is held between one of the contact concave portion 67 and one of the contact flat surface portions 68 and the presser 65, and the electric wiring 60 is fixed to the front plate 64, the front plate 64 contact recesses 67 or contact plane portions 68 are selected according to the wire diameter of the electrical wiring 60, and the electrical wiring 60 is formed by the selected one contact recess 67 or contact plane portion 68 and the presser 65. Can be fixed, so that the presser 65 can be used as a common component for a plurality of types of electrical wiring 60. As a result, since it is not necessary to prepare a plurality of types of pressers 65 corresponding to the wire diameter of the electric wiring 60, the number of parts of the electric wiring 60 can be reduced, and the cost can be reduced.
[0049]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0050]
For example, in the embodiment described above, the front plate 64 of the substrate storage case 57 in the electrical device 45 is described as having the contact recess 67 and the contact flat surface portion 68. However, the electric wiring 60 having a thinner wire diameter is described. Is fixed to the front plate 64 by forming a contact convex portion bulging from the front plate 64 in place of the contact flat portion 68 or together with the contact flat portion 68. The electric wiring 60 may be sandwiched and fixed between the convex portion and the presser 65.
[0051]
Further, in the above embodiment, the case of a power transmission device applied to an air conditioner has been described. However, the present invention is applied to a power transmission device in various devices such as a showcase and a vending machine that refrigerates and displays food. You may apply.
[0052]
Furthermore, although the case where the wiring is an electrical wiring has been described in the present embodiment, it may be a communication wiring such as a telephone wiring.
[0053]
【The invention's effect】
According to the air conditioner pertaining to the first or second aspect of the present invention, the number of parts can be reduced to achieve cost reduction.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an embodiment of an air conditioner according to the present invention.
2 is an exploded perspective view showing the air conditioner of FIG. 1 with a cabinet omitted. FIG.
FIG. 3 is a longitudinal sectional view of the air conditioner of FIG.
4 is a plan view showing the air conditioner of FIG. 1 with a cabinet omitted. FIG.
5 is an exploded perspective view illustrating the partition plate, the cross flow fan, the ventilation device, and the like of FIG. 2;
6 is a plan view corresponding to FIG. 4 showing a state in which the ventilation device of FIG. 5 is assembled.
7 is a front view of the electrical device shown in FIG. 2. FIG.
8 is a cross-sectional view taken along line VIII-VIII in FIG. 7, (A) is a cross-sectional view before fixing the electric wiring, and (B) is a cross-sectional view in a state where the electric wiring is fixed.
9 is a cross-sectional view taken along line IX-IX in FIG. 8, (A) is a cross-sectional view before fixing the electric wiring, and (B) is a cross-sectional view in a state where the electric wiring is fixed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Air conditioning apparatus 11 Indoor heat exchanger 12 Cross flow fan (indoor fan)
13 Outdoor heat exchanger 14 Propeller fan (outdoor fan)
20 Partition plate 21 Indoor side room 22 Outdoor side room 45 Electrical equipment 56 Control board 59 Wiring fixing structure 60 Electric wiring (wiring)
64 Front plate (wiring fixing surface)
65 Presser 66 Abutting Part 67 Abutting Concave 68 Abutting Plane Part

Claims (2)

An indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are integrally provided, and an indoor side chamber in which the indoor heat exchanger and the indoor fan are disposed, and the outdoor heat exchanger and the outdoor fan are disposed. The outdoor room is partitioned by a partition plate,
In addition, in an air conditioner including an electrical device that incorporates a control board that controls the indoor fan, the outdoor fan, and the like, and that fixes electrical wiring connected to the control board to a wiring fixing surface using a presser. ,
The electrical device includes a substrate storage case having a front plate, the control board is disposed on an inner surface of the front plate facing the partition plate, and an outer surface of the front plate is used as the wiring fixing surface. The wiring fixing surface is formed with a plurality of contact portions that can contact the wiring and have different heights.
An air conditioner configured to sandwich a wiring by one of these abutting portions and the presser and to fix the wiring to the wiring fixing surface. The wiring fixing surface in the above electrical device is provided with at least two of a recessed contact concave portion, a planar contact flat portion, and a bulged contact convex portion as contact portions. The air conditioning apparatus according to claim 1.

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