WO2001016532A1 - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
WO2001016532A1
WO2001016532A1 PCT/JP2000/005366 JP0005366W WO0116532A1 WO 2001016532 A1 WO2001016532 A1 WO 2001016532A1 JP 0005366 W JP0005366 W JP 0005366W WO 0116532 A1 WO0116532 A1 WO 0116532A1
Authority
WO
WIPO (PCT)
Prior art keywords
air conditioner
electrical component
voltage circuit
circuit section
indoor unit
Prior art date
Application number
PCT/JP2000/005366
Other languages
French (fr)
Japanese (ja)
Inventor
Yuuichi Terada
Hiroshi Masuda
Mikio Ito
Original Assignee
Daikin Industries, Ltd.
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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to AU64739/00A priority Critical patent/AU747235B2/en
Priority to EP00951934A priority patent/EP1134505A4/en
Publication of WO2001016532A1 publication Critical patent/WO2001016532A1/en
Priority to HK02104324.7A priority patent/HK1042541B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • F24F2013/207Casings or covers with control knobs; Mounting controlling members or control units therein

Definitions

  • the present invention relates to an air conditioner, and more particularly to an air conditioner in which an arrangement space for an electrical component unit is improved.
  • FIG. 15 is a transparent front view showing an indoor unit of a conventional air conditioner.
  • an indoor heat exchanger 82 constituted by connecting the front side heat exchanger and the rear side heat exchanger in an inverted V-shape.
  • a cylindrical cross flow fan 83 is disposed so as to be sandwiched between the inverted V-shaped portions of the indoor heat exchanger 82.
  • the cross flow fan 83 is driven to rotate by a fan motor 85 provided on the right side of the indoor heat exchanger 82.
  • the cross flow fan 85 is driven to rotate, indoor air is drawn in from the front of the indoor heat exchanger 82 and heat is exchanged by the indoor heat exchanger 82.
  • the conditioned air is blown into the room from below.
  • an auxiliary pipe 86 is drawn out from the right side in the figure.
  • the auxiliary pipe 86 is composed of a liquid pipe and a gas pipe which form a refrigerant circuit with an outdoor unit (not shown). After being drawn out from the indoor heat exchanger 82, the auxiliary pipe 86 is disposed on the right side of the indoor heat exchanger 82.
  • the auxiliary pipe 86 is further heat-insulated to form a communication pipe 88, which is arranged from the right side to the left side of the main casing 81 through the back of the main casing 81.
  • an electrical component box 90 for disposing electrical components such as a microcomputer and a power amplifier for driving a motor is provided on the right side of the auxiliary pipe 86 so as not to hinder the air flow path.
  • an auxiliary pipe 86 drawn from the indoor heat exchanger 82 is disposed on the right side of the indoor heat exchanger 82. And further to the right of this auxiliary pipe 8 6 .
  • an electrical component box 90 is provided.
  • two spaces that do not directly contribute to the heat exchange namely the draw-out space for the auxiliary piping 86 and the electrical component box 90 occupy the body casing 81, and the indoor heat exchange 82 for the two spaces. This means that the width must be reduced.
  • increasing the width of the main body casing 81 is not desirable from the viewpoint of installation space limitations and maintenance of installation workability.
  • the space that does not directly contribute to heat exchange in the main casing 81 is made as small as possible, and the width of the indoor heat exchanger 82 is increased without increasing the width of the main casing 81, thereby improving air conditioning efficiency. It was desired to improve Disclosure of the invention
  • the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to increase the dimensions of a heat exchanger without increasing the size of a main body casing and to improve air conditioning efficiency. Another object of the present invention is to provide an air conditioner that can make the main body casing compact without reducing the size of the heat exchanger or the size of the heat exchanger.
  • an air conditioner according to the present invention is configured by disposing an electrical component unit in an indoor unit casing, and the electrical component unit is provided with a power input along a longitudinal direction of the indoor unit casing. It is characterized in that a high-voltage circuit section and a low-voltage circuit section are arranged in this order from the section side.
  • the electrical component unit since the circuit configuration of the electrical component unit is a serial layout along the longitudinal direction of the indoor unit casing, the electrical component unit has an elongated shape along the longitudinal direction of the indoor unit casing. be able to. Therefore, it is possible to arrange the electrical component units in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing. That is, a special space for arranging electrical components is not required on the side of the indoor unit casing as in the related art. Therefore, the length of the indoor unit in the longitudinal direction can be reduced, and the indoor unit can be made compact. Conversely, in the case of an indoor unit having the same dimensions as the conventional one, the arrangement space of the heat exchanger and the fan is small. This means that the air conditioning performance can be improved compared to the past.
  • the air conditioner of one embodiment is characterized in that an AC circuit unit, a DC high-voltage circuit unit, and a DC low-voltage circuit unit are arranged in this order from the AC power input unit side.
  • the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained.
  • This circuit configuration is suitable for the case where voltage is converted after converting AC into DC.
  • the air conditioner of one embodiment is characterized in that an AC high-voltage circuit section, an AC low-voltage circuit section, and a DC low-voltage circuit section are arranged in this order from the AC power input section. Also in the air conditioner of the above embodiment, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained.
  • This circuit configuration is suitable for a model that performs step-down by a transformer or the like.
  • the air conditioner of one embodiment is characterized in that a DC high-voltage circuit unit and a DC low-voltage circuit unit are arranged in order from the DC power input unit side.
  • This circuit configuration is suitable for a model having an AC-DC converter outside the device.
  • the air conditioner of one embodiment is characterized in that the power input unit is provided on the side of the indoor unit casing where the high-voltage drive actuator is arranged.
  • the connection harness is shortened, the configuration can be simplified, and the connection and assembly can be performed. Work becomes easy.
  • the low-pressure drive is provided on the side where the high-voltage drive actuator is disposed in the indoor unit casing and on the side where the low-voltage circuit is located. It is characterized by having an actuator.
  • the low-voltage drive actuator is arranged close to the low-voltage circuit unit side, so that the connection harness is further shortened, and The structure can be simplified, and the connection and assembly work becomes easier.
  • An air conditioner according to another embodiment is characterized in that, in the above embodiment, the high-pressure drive actuator is an indoor fan drive motor, and the low-pressure drive actuator is a flap control motor.
  • this air conditioner is suitable for the implementation.
  • one or more of the circuit units are housed in a single printed circuit board as a unit block, and a plurality of printed circuit boards are arranged side by side in the longitudinal direction of the indoor unit casing.
  • the air conditioner of one embodiment since one or a plurality of circuit units are housed in a single printed circuit board as a unit block, maintenance work can be facilitated. Further, the air conditioner of one embodiment is characterized in that the longitudinal dimension of the space in which the electrical component unit is arranged is at least 1 Z2 of the longitudinal dimension of the indoor unit casing.
  • the electric component cutout is formed in an elongated shape along the longitudinal direction of the indoor unit casing, so that various types of cross sections orthogonal to the longitudinal direction of the indoor unit casing are provided. It is possible to arrange the electrical components in the space, which makes it possible to reduce the length of the indoor unit in the longitudinal direction, and also has the advantage of making the indoor unit compact and improving the air conditioning performance.
  • the electrical component unit may be arranged at a position above the air outlet of the indoor unit casing and in a lateral direction located between a drain pan of the indoor heat exchanger 4 and a front panel of the indoor unit casing. It is characterized in that it is arranged in a region extending in the direction.
  • the drain pan and the indoor unit casing The position between the front panel and the front panel is an area that is definitely dead space. Therefore, by arranging the electrical component unit in this area, the space in the indoor unit casing can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved Obviously
  • An air conditioner according to another embodiment is the air conditioner according to the above embodiment, It is characterized in that electrical component panels that generate a large amount of self-heating are arranged above the printed circuit board.
  • the air conditioner of the above other embodiment since the electric component panel having a large amount of self-heating is arranged at a position above the printed circuit board, the heat radiation of each electric component panel can be promoted, and It is possible to prevent electric components from being affected by heat radiation. Further, the air conditioner of one embodiment is characterized in that a heat radiating hole for cooling the electrical component unit is opened toward the front side.
  • the heat radiation hole is opened toward the front side, whereby the air flowing through the front side can promote the heat radiation of the electric component panel having a large amount of self-heating. is there.
  • the heat radiating holes are open to the front side, the ingress of drain water is prevented and the reliability of the equipment can be maintained.
  • the air conditioner of one embodiment is characterized in that the power input section is configured as a terminal board, and the insertion direction of the VVF line of the terminal board is set as the longitudinal direction of the indoor unit casing.
  • the air conditioner of one embodiment is characterized in that the insertion direction of the VVF line is a direction from the power input unit to the low-voltage circuit unit.
  • the insertion direction of the VVF line into the terminal board is the longitudinal direction of the indoor unit casing and the direction from the AC circuit section to the DC low-pressure circuit section.
  • FIG. 1 is a schematic front view showing a first embodiment of the air conditioner of the present invention.
  • FIG. 2 is a schematic front view similar to the above showing the first embodiment of the air conditioner of the present invention.
  • FIG. 3 is a schematic side view showing a first embodiment of the air conditioner of the present invention.
  • FIG. 4 is a sectional view showing a first embodiment of the air conditioner of the present invention.
  • FIG. 5 is an exploded perspective view showing the first embodiment of the air conditioner of the present invention.
  • FIG. 6 is an exploded perspective view of an example of an electrical component unit used in the air conditioner.
  • FIG. 7 is a schematic plan view of the electric component unit.
  • FIG. 8 is a block diagram showing a circuit configuration of the electric component unit.
  • FIG. 9 is a cross-sectional view showing a structure near a light emitting display unit in the electric component unit.
  • FIG. 10 is a block diagram showing a circuit configuration of the electrical component unit.
  • FIG. 11 is a block diagram showing a modification of the circuit configuration of the electrical component unit.
  • FIG. 12 is a schematic diagram showing an example of the arrangement of the electrical component units of the air conditioner.
  • FIG. 13 is a schematic diagram showing an arrangement example when the electric component unit is divided and configured.
  • FIG. 14 is a schematic diagram showing another example of arrangement when the electrical component unit is divided and configured.
  • FIG. 15 is a schematic diagram showing an example of arrangement of electrical component units in a conventional example. BEST MODE FOR CARRYING OUT THE INVENTION
  • This air conditioner has a structure consisting of an outdoor unit and an indoor unit, and the following description will be made for a wall-mounted indoor unit.
  • the indoor unit casing 1 of the indoor unit consists of a main unit casing 1a on which the main components such as the indoor heat exchanger 4, cross flow fan 9, and electrical component unit 14 are attached. And a front grille 5 attached to the front of the body casing 1a, and a front panel 7 attached to the front of the front grille 5 as a whole. It has been done. Of these, the front panel 7 can be removed by the user arbitrarily. The 1a and the front Darinole 5 are not removable by the user. As shown in Figs.
  • the indoor unit casing 1 has a top surface suction port 6 formed in a ceiling portion of a front grille 5 and a front surface suction port 8 formed in a front panel 7.
  • the top surface suction port 6 is formed by making the ceiling of the front grille 5 into a lattice shape, and the front side suction port 8 has an upward opening at the center of It is formed by extending.
  • a cross flow fan 9 is provided inside the inverted V shape of the indoor heat exchanger 4.
  • the cross flow fan 9 is called an axial fan, and is arranged so that the axial direction thereof is along the longitudinal direction of the indoor unit casing 1.
  • a scroll portion 10 is formed behind the cross flow fan 9, and is smoothly connected to an air outlet 11 opening at a lower portion on the front side of the indoor unit casing 1.
  • the upper wall surface 12 of the outlet 11 is formed in a body with a drain pan 13 located at a lower part of the front heat exchanger 2, and is located at an upper part of the outlet 11,
  • An electrical component unit 14 is disposed at a position on the front side of the drain pan 13, that is, between the drain pan 13 and the front panel 7.
  • the rear side drain pan 15 is arranged.
  • the indoor unit itself and the indoor unit casing 1 are horizontally elongated as shown in FIGS. 1 and 2, and the front intake port 8 and the air outlet 11 are disposed in the longitudinal direction of the indoor unit casing 1 (lateral direction). ).
  • the electrical component unit 14 is located at a position above the outlet 11 and at a position in front of the drain pan 13 as shown in FIG. 1 and FIG.
  • the casing 1 is configured to extend in the lateral direction along the longitudinal direction.
  • FIG. 6 reference numeral 20 denotes an electrical component case for accommodating the electrical component unit 14
  • 21 denotes an electrical component cover for covering the electrical component unit 14
  • the electrical component unit 14 is located between the two 20 and 21. Is arranged.
  • the electrical component unit 14 is connected to a commercial power source (AC 100 V or AC 200 V) as a power input terminal.
  • the DC high voltage circuit section 24 is mounted on the first printed circuit board 28, the DC low voltage circuit section 25 is mounted on the second printed circuit board 29, and the light emitting display section 27 is mounted on the display board 30. It has been. As shown in FIGS. 6 and 7, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, the DC low-voltage circuit section 25, and the CPU control section 26 are arranged from right to left in the figure. Along with this, it is arranged in a state of being laid out in series along the longitudinal direction of the indoor unit casing 1 and attached to the electrical component case 20. The display substrate 30 is attached to the back side of the electrical component cover 21. In this state, the electrical component case 21 is covered with the electrical component cover 21. The electrical component cover 21 has openings 3 1 and 3 1 at corresponding positions so that the LEDs of the light-emitting display section 27 and 7-segment LEDs (light-emitting display means) can be externally observed. ing.
  • the first printed circuit board 28, the second printed circuit board 29, and the display board 30 are all formed as long as possible in order to form the entirety horizontally. I have.
  • the first printed board 28 and the second printed board 29 are connected by a board-to-board connector 39 without using a harness (harnessless).
  • heat-generating components such as a SW transformer 41, a rectifier diode 42, and a primary-side SW element 43 are used.
  • the electric components 41, 42, 43 generating much heat are arranged above the first printed circuit board 28 extending in the vertical direction as shown in FIG. 43 In addition to promoting heat radiation, it also prevents other electric components from being affected by heat radiation.
  • the electrical component unit 14 is housed in the electrical component case 20 and covered by the electrical component cover 21 as described above, but the upper part of the electrical component case 20 and the upper part of the electrical component cover 21 are also covered.
  • a gap portion indicated by reference numeral 45 in FIG.
  • a DCP WM type indoor fan drive motor that drives the cross flow fan 9 is on the right side in Fig. 1 and a flap control motor (stepping motor) that drives and controls the horizontal flap.
  • the power is supplied to the indoor fan drive motor 35 from the DC high-voltage circuit section 24, as shown in Fig. 8, and the flap control motor 3 Power is supplied to DC 6 from DC low voltage circuit section 25. That is, as shown in FIGS.
  • the DC high-voltage circuit section 24 is arranged on the right side, and the DC low-voltage circuit section 25 is arranged on the left side.
  • the indoor fan drive as a high-voltage drive actuator is arranged.
  • the motor 35 on the right side and the flap control motor 36 are arranged as a low-voltage drive actuator on the left side, each circuit section 24, 25 and each actuator 36 are arranged as close as possible. -ing
  • the indoor unit is connected to the outdoor unit 37, and this connection is made by the VVF line 38.
  • the line 38 is composed of a pair of AC lines for power supply and a transmission line for internal / external transmission.
  • a VVF line 38 as an internal / external connection line is connected to the terminal board 22. It can be inserted and connected from the right side in FIGS. 6 and 7. That is, the insertion direction of the VVF line 38 into the terminal board 22 is the longitudinal direction of the indoor unit casing 1 and the direction from the AC circuit section 23 to the DC low voltage circuit section 25. ing.
  • VVF line 38 By inserting the VVF line 38 in such a direction, the insertion and connection work of the VVF line 38 can be facilitated, and the VVF line 38 and the above-mentioned circuit sections 23, 24, and 2 Interference with 5, 26 can be prevented, making it easier to route lines and reducing noise.
  • the openings 3 1, 31 of the electrical component cover 21 are formed so that a user can observe them from the outside through the observation window 32 of the front linole 5.
  • the front panel 5 does not cover the whole of the front grill 5 but exposes a lower portion of the front grill 5 to the outside.
  • the dimension a along the longitudinal direction of the indoor unit casing 1 of the electrical component unit 14 is at least one of the longitudinal dimensions LA of the indoor unit casing 1. Electrical unit so that the length is at least 1/2 Is arranged.
  • the length a of the electrical component unit 14 is preferably as long as possible. Accordingly, the length a of the indoor unit casing 1 should be at least two to three or more of the longitudinal dimension LA.
  • the dimension a of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is set to be substantially equal to the longitudinal dimension LA of the indoor unit casing 1.
  • the cross-sectional area can be minimized or minimized, and the position of the electrical component unit 14 can be determined.
  • the electrical component unit 14 includes a terminal board 22, an AC circuit section 23, a DC high-voltage circuit section 24, a DC low-voltage circuit section 25, and a CPU control section 26. Since the electrical component unit 14 is formed by laying out in series along the longitudinal direction of the machine casing 1, the electrical component unit 14 has an elongated shape. Therefore, a special space for disposing the electrical component unit 14 is not required on the side portion of the indoor unit casing 1 as in the conventional case. Therefore, the length of the indoor unit in the longitudinal direction can be reduced, and the indoor unit can be made compact. Conversely, in other words, in the indoor unit of the same size as the conventional one, the space for installing the indoor heat exchanger 4 and the cross flow fan 9 can be increased, so that the air conditioning performance is improved compared to the conventional one. It becomes possible to do.
  • the indoor fan drive motor In the above air conditioner, the indoor fan drive motor
  • connection harness Since 35 is arranged, the connection harness is shortened, the configuration can be simplified, and the connection and assembly work becomes easy.
  • fan control motor (low-voltage drive actuator) 36 is arranged close to the DC low-voltage circuit section 25, the connection harness is further shortened, and the configuration can be simplified. , Connection and assembly work becomes easier. Further, since the DC high-voltage circuit section 24 and the DC low-voltage circuit section 25 are housed in one printed circuit board 28, 29 as a unit block, maintenance work can be simplified.
  • the electric components 41, 42, 43 generating a large amount of self-heating are arranged above the printed circuit board 28, so that each of the electric components 41, 42, 43 is disposed. Heat dissipation can be promoted, and the effect of heat dissipation on other electrical components can be prevented.
  • the heat radiating holes 45 are opened toward the front side, so that the air flowing through the front side can promote the heat radiation of the electric components 41, 42, 43 having large self-heating. It is possible, and since the heat radiating holes 45 are open to the front side, the intrusion of drain water can be prevented, and the reliability of the equipment can be maintained.
  • the insertion direction of the VVF line 38 into the terminal board 22 is in the longitudinal direction of the indoor unit casing 1 and from the AC circuit section 23 to the DC low-pressure circuit section 25.
  • the electrical component unit 14 is disposed at a position above the outlet 11 and in front of the drain pan 13, and this region includes the outlet side and the suction side. This is the part that needs to be left as a dead space in order to prevent short circuits. Since the electrical component unit 14 is arranged in such an area, the space in the indoor unit casing 1 can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It becomes possible.
  • the electrical component unit 14 is housed in the electrical component case 20 and is covered with the electrical component cover 21. Therefore, it is possible to suppress the drain water in the drain pan 13 from adversely affecting the electrical component unit 14, thereby improving the reliability of the electrical component unit 14.
  • the shielding mechanism for the drain water only needs to be able to suppress the adverse effects such as a short circuit caused by the drain water. It is not always necessary to completely block the infiltration of the drain water. This includes measures such as omitting one of 0 and the electrical component cover 21 or simply providing a partition plate. And in the above air conditioner, the front panel 7. If the front grille 5 and the electrical component cover 21 are removed, the electrical component unit 14 will be exposed to the outside. In this state, inspection, replacement, repair, and the like of each electrical component can be performed from the front, so that component replacement and maintenance work can be simplified.
  • a light-emitting display 27 is provided on the electrical component unit 14, and the light-emitting display 27 can be observed from outside through the observation window 32 on the front side of the indoor unit casing 1.
  • the light emitting display unit 27 is provided integrally with the electrical component unit 14 as described above, the electrical component unit 14 and the light emitting display unit 27 are electrically connected to each other. It is not necessary to increase the wiring length of the lead wires and the like for connection to the conventional equipment, and the wiring length can be significantly reduced compared to the conventional equipment, reducing costs and reducing the number of electrical components and the light emitting display 2 By arranging 7 in close proximity, maintenance work can be facilitated. Furthermore, since the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, manufacturing and handling are simplified. In addition to reducing costs, reliability is also improved.
  • FIG. 10 schematically shows the arrangement state of each circuit.
  • the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, and the DC low-voltage circuit section 25 are arranged along the longitudinal direction of the indoor unit casing 1.
  • Fig. 11 shows an example of the modification.
  • Fig. 11 (a) shows a layout suitable for a product having an AC-DC converter outside the machine.
  • DC high-voltage circuit 24, DC low-voltage circuit 2 5 are arranged along the longitudinal direction of the indoor unit casing 1.
  • Figure (b) shows a layout suitable for a product that performs step-down by a transformer or the like.
  • Each of the terminal board 22, AC high-voltage circuit 23, AC low-voltage circuit 23a, and DC low-voltage circuit 25 The circuit section is arranged along the longitudinal direction of the indoor unit casing 1.
  • the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, and the manufacturing and handling are performed. Although it is easy, cost reduction and reliability are improved, as shown in Fig. 13, multiple units 14a, 14b in which electrical component units 14 are arranged in a substantially straight line , Which may be configured as 14c. Specifically, multiple pre- The electrical component unit 14 is composed of a printed circuit board, and the plurality of printed circuit boards are mounted on the same board and are electrically connected to each other. When the electrical component unit 14 is configured as described above, the electrical component unit 14 is preferably formed in a substantially columnar shape as a whole from the viewpoint of compactness and easy handling. As shown in Fig.
  • the electrical component unit 14 is configured as a plurality of units 14a, 14b, and 14c, and each unit 14a, 14b, and 14c is a longitudinal unit. They may be arranged so as to be shifted from each other in the direction and also in the direction (air flow direction) crossing the longitudinal direction. With this configuration, the degree of freedom in selecting the arrangement position can be improved, and appropriate arrangement according to the model can be performed.
  • the indoor unit of the air conditioner is not limited to a wall-mounted type, and includes various installation forms such as a floor-standing type and a ceiling-mounted type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction or the horizontal direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

An air conditioner, wherein a terminal board (22), an AC circuit part (23), a DC high-voltage circuit part (24), a DC low-voltage circuit part (25), and a CPU control part (26) are laid out in series along the longitudinal direction of an indoor unit casing (1) so as to form an electrical equipment unit (14) in a slender shape, whereby the size of an indoor heat exchanger can be increased to increase an air conditioning efficiency without increasing the size of a main unit casing or the main unit casing can be formed compact without reducing the size of the indoor heat exchanger.

Description

明 細 書 空気調和機 技術分野  Description Air Conditioner Technical Field
この発明は、 空気調和機に関するもので、 特に電装品ユニッ トの配置スペース を改善した空気調和機に係るものである。 背景技術  The present invention relates to an air conditioner, and more particularly to an air conditioner in which an arrangement space for an electrical component unit is improved. Background art
図 1 5は、 従来例の空気調和機の室内機を示す透過正面図である。 本体ケーシ ング 8 1内には、 前面側熱交換器と背面側熱交換器とを逆 V字状に連結して構成 した室内熱交換器 8 2が設けられている。 そしてこの室内熱交換器 8 2の逆 V字 に挟まれるようにして、 円筒状のクロスフローファン 8 3が配置されている。 こ のクロスフローファン 8 3は、 室内熱交換器 8 2の右側に設けられたファンモー タ 8 5で回転駆動されるものである。 そしてこのクロスフローファン 8 5が回転 駆動されることにより、 上記室内熱交換器 8 2の前方から室内空気を吸い込み、 室内熱交換器 8 2で熱交換した後、 この室内熱交換器 8 2の下方から空調空気を 室内に吹き出すようになつている。  FIG. 15 is a transparent front view showing an indoor unit of a conventional air conditioner. Inside the main body casing 81, there is provided an indoor heat exchanger 82 constituted by connecting the front side heat exchanger and the rear side heat exchanger in an inverted V-shape. A cylindrical cross flow fan 83 is disposed so as to be sandwiched between the inverted V-shaped portions of the indoor heat exchanger 82. The cross flow fan 83 is driven to rotate by a fan motor 85 provided on the right side of the indoor heat exchanger 82. When the cross flow fan 85 is driven to rotate, indoor air is drawn in from the front of the indoor heat exchanger 82 and heat is exchanged by the indoor heat exchanger 82. The conditioned air is blown into the room from below.
また上記室内熱交換器 8 2は、 同図におけるその右側から補助配管 8 6が引き 出されている。 この補助配管 8 6は、 室外機 (図示せず) との間で冷媒回路を形 成する液管及びガス管から成るものである。 そしてこの補助配管 8 6は、 上記室 内熱交換器 8 2から引き出された後、 この室内熱交換器 8 2の右側に配設される。 そしてこの補助配管 8 6をさらに断熱被覆して連絡配管 8 8が形成され、 この連 絡配管 8 8が、 上記本体ケーシング 8 1の右側から左側へと本体ケーシング 8 1 の背部を通じて配設されている。 さらに空気流路の妨げとならないように、 上記 補助配管 8 6の右側に、 マイクロコンピュータやモータ駆動用のパワーアンプ等 の電装品を配置するための電装品箱 9 0が設けられている。  In the indoor heat exchanger 82, an auxiliary pipe 86 is drawn out from the right side in the figure. The auxiliary pipe 86 is composed of a liquid pipe and a gas pipe which form a refrigerant circuit with an outdoor unit (not shown). After being drawn out from the indoor heat exchanger 82, the auxiliary pipe 86 is disposed on the right side of the indoor heat exchanger 82. The auxiliary pipe 86 is further heat-insulated to form a communication pipe 88, which is arranged from the right side to the left side of the main casing 81 through the back of the main casing 81. I have. Further, an electrical component box 90 for disposing electrical components such as a microcomputer and a power amplifier for driving a motor is provided on the right side of the auxiliary pipe 86 so as not to hinder the air flow path.
上記室内機では、 室内熱交換器 8 2の右側に、 この室内熱交換器 8 2から引き 出された補助配管 8 6が配設されている。 そしてさらにこの補助配管 8 6の右側 に、 電装品箱 9 0が設けられている。 つまり、 補助配管 8 6の引き出しスペース 及び上記電装品箱 9 0という熱交換に直接寄与しない 2つのスペースが本体ケー シング 8 1内を占有し、 これら 2つのスペースの分だけ室内熱交 8 2の幅寸 法を小さくせざるを得なレ、ということである。 もちろん空調効率の観点からは、 室内熱交換器 8 2の幅寸法は大きい方が望ましい。 しかし一方で、 本体ケーシン グ 8 1の幅寸法を大きくすることは、 据付スペースの制限ゃ据付施工性維持とい う観点から望ましいことではない。 そこで本体ケーシング 8 1内で熱交換に直接 寄与しない空間をなるベく小さく して、 本体ケーシング 8 1の幅寸法を大きくす ることなく室内熱交換器 8 2の幅寸法を大きくし、 空調効率を向上させることが 望まれていた。 発明の開示 In the indoor unit, an auxiliary pipe 86 drawn from the indoor heat exchanger 82 is disposed on the right side of the indoor heat exchanger 82. And further to the right of this auxiliary pipe 8 6 In addition, an electrical component box 90 is provided. In other words, two spaces that do not directly contribute to the heat exchange, namely the draw-out space for the auxiliary piping 86 and the electrical component box 90 occupy the body casing 81, and the indoor heat exchange 82 for the two spaces. This means that the width must be reduced. Of course, from the viewpoint of air conditioning efficiency, it is desirable that the width of the indoor heat exchanger 82 be large. On the other hand, however, increasing the width of the main body casing 81 is not desirable from the viewpoint of installation space limitations and maintenance of installation workability. Therefore, the space that does not directly contribute to heat exchange in the main casing 81 is made as small as possible, and the width of the indoor heat exchanger 82 is increased without increasing the width of the main casing 81, thereby improving air conditioning efficiency. It was desired to improve Disclosure of the invention
この発明は、 上記従来の課題を解決するためになされたものであって、 その目 的は、 本体ケーシングを大きくすることなく熱交換器の寸法を大きく して空調効 率を向上させることが可能であったり、 あるいは熱交換器の寸法を小さくするこ となく本体ケーシングをコンパク トに構成可能な空気調和機を提供することにあ る。  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to increase the dimensions of a heat exchanger without increasing the size of a main body casing and to improve air conditioning efficiency. Another object of the present invention is to provide an air conditioner that can make the main body casing compact without reducing the size of the heat exchanger or the size of the heat exchanger.
上記目的を達成するため、 この発明に係る空気調和機は、 室内機ケーシング内 に電装品ュニットを配置して成り、 上記電装品ュニットは室内機ケ一シングの長 手方向に沿って、 電源入力部側から順に、 高圧回路部と低圧回路部とを配置して いることを特徴としている。  In order to achieve the above object, an air conditioner according to the present invention is configured by disposing an electrical component unit in an indoor unit casing, and the electrical component unit is provided with a power input along a longitudinal direction of the indoor unit casing. It is characterized in that a high-voltage circuit section and a low-voltage circuit section are arranged in this order from the section side.
上記構成の空気調和機によれば、 電装品ュニットの回路構成を室内機ケーシン グの長手方向に沿った直列レイァゥトとしているので、 電装品ュニットを室内機 ケーシングの長手方向に沿った細長い形状とすることができる。 そのため室内機 ケーシングの長手方向に直交する断面から見た種々のスペースに電装品ュニット を配置することが可能となる。 すなわち従来のように室内機ケーシングの側部に おいて、 電装品を配置するための特別のスペースを必要とはしない。 そのため室 内機の長手方向寸法を小さくでき、 室内機をコンパク ト化できる。 またこのこと を逆にいえば、 従来と同一寸法の室内機において、 熱交換器やファンの配置スぺ ースを増加し得るということであり、 このため従来よりも空調性能を向上するこ とが可能になる。 According to the air conditioner having the above configuration, since the circuit configuration of the electrical component unit is a serial layout along the longitudinal direction of the indoor unit casing, the electrical component unit has an elongated shape along the longitudinal direction of the indoor unit casing. be able to. Therefore, it is possible to arrange the electrical component units in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing. That is, a special space for arranging electrical components is not required on the side of the indoor unit casing as in the related art. Therefore, the length of the indoor unit in the longitudinal direction can be reduced, and the indoor unit can be made compact. Conversely, in the case of an indoor unit having the same dimensions as the conventional one, the arrangement space of the heat exchanger and the fan is small. This means that the air conditioning performance can be improved compared to the past.
また、 一実施形態の空気調和機は、 交流電源入力部側から順に、 交流回路部、 直流高圧回路部、 直流低圧回路部を配置していることを特徴としている。  Further, the air conditioner of one embodiment is characterized in that an AC circuit unit, a DC high-voltage circuit unit, and a DC low-voltage circuit unit are arranged in this order from the AC power input unit side.
上記実施形態の空気調和機においても、 同様に室内機のコンパクト化、 空調性 能の向上という利点が得られる。 この回路構成は、 交流を直流に変換した後、 電 圧変換する場合に好適である。  Also in the air conditioner of the above embodiment, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. This circuit configuration is suitable for the case where voltage is converted after converting AC into DC.
また、 一実施形態の空気調和機は、 交流電源入力部側から順に、 交流高圧回路 部、 交流低圧回路部、 直流低圧回路部を配置していることを特徴としている。 上記実施形態の空気調和機においても、 同様に室内機のコンパク ト化、 空調性 能の向上という利点が得られる。 この回路構成は、 降圧をトランス等で行う機種 に好適である。  Further, the air conditioner of one embodiment is characterized in that an AC high-voltage circuit section, an AC low-voltage circuit section, and a DC low-voltage circuit section are arranged in this order from the AC power input section. Also in the air conditioner of the above embodiment, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. This circuit configuration is suitable for a model that performs step-down by a transformer or the like.
また、 一実施形態の空気調和機は、 直流電源入力部側から順に、 直流高圧回路 部、 直流低圧回路部を配置していることを特徴としている。  Further, the air conditioner of one embodiment is characterized in that a DC high-voltage circuit unit and a DC low-voltage circuit unit are arranged in order from the DC power input unit side.
上記実施形態の空気調和機においても、 同様に室内機のコンパクト化、 空調性 能の向上という利点が得られる。 この回路構成は、 A C— D C変換部を機外に有 する機種に好適である。  Also in the air conditioner of the above embodiment, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. This circuit configuration is suitable for a model having an AC-DC converter outside the device.
また、 一実施形態の空気調和機は、 室内機ケーシング内において高圧駆動ァク チユエータが配置されている側に上記電源入力部を設けていることを特徴として いる。  Moreover, the air conditioner of one embodiment is characterized in that the power input unit is provided on the side of the indoor unit casing where the high-voltage drive actuator is arranged.
上記実施形態の空気調和機によれば、 高圧回路部側に近接して高圧駆動ァクチ ユエータが配置されることになるので、 接続ハーネスが短くなり、 その構成を簡 素化できると共に、 結線、 組立作業が容易となる。  According to the air conditioner of the above embodiment, since the high-voltage drive actuator is arranged close to the high-voltage circuit section side, the connection harness is shortened, the configuration can be simplified, and the connection and assembly can be performed. Work becomes easy.
また、 他の実施形態の空気調和機は、 上記実施形態において、 室内機ケーシン グ内において高圧駆動ァクチユエータが配置されているのとは反対側で、 上記低 圧回路部の位置する側に低圧駆動ァクチユエータを設けていることを特徴として いる。  Further, in the air conditioner of another embodiment, in the above-described embodiment, the low-pressure drive is provided on the side where the high-voltage drive actuator is disposed in the indoor unit casing and on the side where the low-voltage circuit is located. It is characterized by having an actuator.
上記他の実施形態の空気調和機によれば、 低圧回路部側に近接して低圧駆動ァ クチユエータが配置されることになるので、 接続ハーネスがさらに短くなり、 そ の構成を簡素化できると共に、 結線、 組立作業がさらに容易となる。 According to the air conditioner of the above other embodiment, the low-voltage drive actuator is arranged close to the low-voltage circuit unit side, so that the connection harness is further shortened, and The structure can be simplified, and the connection and assembly work becomes easier.
また、 他の実施形態の空気調和機は、 上記実施形態において、 上記高圧駆動ァ クチユエータは、 室内ファン駆動モータであり、 また上記低圧駆動ァクチユエ一 タは、 フラップ制御用モータであることを特徴としているが、 この空気調和機は、 その実施に好適である。  An air conditioner according to another embodiment is characterized in that, in the above embodiment, the high-pressure drive actuator is an indoor fan drive motor, and the low-pressure drive actuator is a flap control motor. However, this air conditioner is suitable for the implementation.
また、 一実施形態の空気調和機は、 上記回路部の単数又は複数が単位ブロック として 1枚のプリント基板に収められ、 複数のプリント基板が室内機ケーシング の長手方向に並設されていることを特徴としている。  In one embodiment, one or more of the circuit units are housed in a single printed circuit board as a unit block, and a plurality of printed circuit boards are arranged side by side in the longitudinal direction of the indoor unit casing. Features.
上記実施形態の空気調和機によれば、 単数又は複数の回路部を単位プロックと して 1枚のプリント基板に収めているので、 メンテナンス作業を容易化できる。 また、 一実施形態の空気調和機は、 上記電装品ユニットの配置されるスペース の長手方向寸法は、 室内機ケーシングの長手方向寸法の 1 Z 2以上の寸法である ことを特徴としている。  According to the air conditioner of the above embodiment, since one or a plurality of circuit units are housed in a single printed circuit board as a unit block, maintenance work can be facilitated. Further, the air conditioner of one embodiment is characterized in that the longitudinal dimension of the space in which the electrical component unit is arranged is at least 1 Z2 of the longitudinal dimension of the indoor unit casing.
上記実施形態の空気調和機においては、 電装品ュ-ットを室内機ケーシングの 長手方向に沿った細長い形状としているので、 室内機ケ一シングの長手方向に直 交する断面から見た種々のスペースに電装品ュニットを配置することが可能とな り、 そのため室内機の長手方向寸法を小さくでき、 同様に、 室内機のコンパク ト 化、 空調性能の向上という利点が得られる。  In the air conditioner of the above embodiment, the electric component cutout is formed in an elongated shape along the longitudinal direction of the indoor unit casing, so that various types of cross sections orthogonal to the longitudinal direction of the indoor unit casing are provided. It is possible to arrange the electrical components in the space, which makes it possible to reduce the length of the indoor unit in the longitudinal direction, and also has the advantage of making the indoor unit compact and improving the air conditioning performance.
また、 一実施形態の空気調和機は、 上記電装品ユニットは、 室内機ケーシング の吹出口上部の位置で、 室内熱交換器 4のドレンパンと室内機ケーシングの前面 パネルとの間に位置する横方向に延びる領域に配置されていることを特徴として いる。  Further, in the air conditioner of one embodiment, the electrical component unit may be arranged at a position above the air outlet of the indoor unit casing and in a lateral direction located between a drain pan of the indoor heat exchanger 4 and a front panel of the indoor unit casing. It is characterized in that it is arranged in a region extending in the direction.
上記実施形態の空気調和機のように、 室内機の吹出口上部に位置する領域にお いて、 室内熱交換器 4の下側にドレンパンが設けられている場合、 このドレンパ ンと室内機ケーシングの前面パネルとの間の位置は、 確実にデッドスペースとな る領域である。 従って、 この領域に電装品ユニットを配置すれば、 室内機ケーシ ング内のスペースをより一段と有効に活用でき、 この結果、 室内機をさらにコン パク ト化したり、 空調性能をさらに向上することが可能となる。  When a drain pan is provided below the indoor heat exchanger 4 in a region located above the air outlet of the indoor unit as in the air conditioner of the above embodiment, the drain pan and the indoor unit casing The position between the front panel and the front panel is an area that is definitely dead space. Therefore, by arranging the electrical component unit in this area, the space in the indoor unit casing can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved Becomes
また、 他の実施形態の空気調和機は、 上記実施形態において、 上記電装品ュニ ットにおいて、 自己発熱量の多い電気部品パネルをプリント基板の上方側に配置 していることを特徴としている。 An air conditioner according to another embodiment is the air conditioner according to the above embodiment, It is characterized in that electrical component panels that generate a large amount of self-heating are arranged above the printed circuit board.
上記他の実施形態の空気調和機においては、 自己発熱量の多い電気部品パネル をプリント基板の上方位置に配置しているので、 各電気部品パネルの放熱の促進 を図ることができると共に、 他の電気部品に放熱の影響が及ぶのを防止できる。 また、 一実施形態の空気調和機は、 上記電装品ユニットの冷却のための放熱孔 を、 前面側に向けて開放していることを特徴としている。  In the air conditioner of the above other embodiment, since the electric component panel having a large amount of self-heating is arranged at a position above the printed circuit board, the heat radiation of each electric component panel can be promoted, and It is possible to prevent electric components from being affected by heat radiation. Further, the air conditioner of one embodiment is characterized in that a heat radiating hole for cooling the electrical component unit is opened toward the front side.
上記実施形態の空気調和機においては、 放熱孔を前面側に向けて開放し、 これ によりその前面側を流通する空気によって、 自己発熱量の多い電気部品パネルの 放熱の促進を図ることが可能である。 また放熱孔を前面側に向けて開放している ので、 ドレン水の浸入を防止し、 機器の信頼性を維持できる。  In the air conditioner of the above embodiment, the heat radiation hole is opened toward the front side, whereby the air flowing through the front side can promote the heat radiation of the electric component panel having a large amount of self-heating. is there. In addition, since the heat radiating holes are open to the front side, the ingress of drain water is prevented and the reliability of the equipment can be maintained.
また、 一実施形態の空気調和機は、 上記電源入力部は端子盤として構成され、 この端子盤の V V Fラインの揷入方向を上記室内機ケーシングの長手方向として いることを特徴としている。  Further, the air conditioner of one embodiment is characterized in that the power input section is configured as a terminal board, and the insertion direction of the VVF line of the terminal board is set as the longitudinal direction of the indoor unit casing.
さらに、 一実施形態の空気調和機は、 上記 V V Fラインの挿入方向は、 上記電 源入力部から低圧回路部へと向かう方向であることを特徴している。  Further, the air conditioner of one embodiment is characterized in that the insertion direction of the VVF line is a direction from the power input unit to the low-voltage circuit unit.
上記実施形態の空気調和機においては、 V V Fラインの端子盤への挿入方向を 上記室内機ケーシングの長手方向であって、 上記交流回路部から上記直流低圧回 路部へと向かう方向にしているが、 このような方向に向けて V V Fラインを挿入 することによって、 V V Fラインの挿入、 接続作業の容易化が図れると共に、 V V Fラインと上記各回路部との干渉が防止でき、 ライン引回し作業を容易化し、 またノイズを低減することが可能となる。 図面の簡単な説明  In the air conditioner of the above embodiment, the insertion direction of the VVF line into the terminal board is the longitudinal direction of the indoor unit casing and the direction from the AC circuit section to the DC low-pressure circuit section. By inserting the VVF line in such a direction, the VVF line can be easily inserted and connected, and the interference between the VVF line and each of the above circuits can be prevented. And noise can be reduced. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 この発明の空気調和機の第 1実施形態を示す正面略図である。  FIG. 1 is a schematic front view showing a first embodiment of the air conditioner of the present invention.
図 2は、 この発明の空気調和機の第 1実施形態を示す上記と略同様な正面略図 である。  FIG. 2 is a schematic front view similar to the above showing the first embodiment of the air conditioner of the present invention.
図 3は、 この発明の空気調和機の第 1実施形態を示す側面略図である。  FIG. 3 is a schematic side view showing a first embodiment of the air conditioner of the present invention.
図 4は、 この発明の空気調和機の第 1実施形態を示す断面図である。 図 5は、 この発明の空気調和機の第 1実施形態を示す分解斜視図である。 FIG. 4 is a sectional view showing a first embodiment of the air conditioner of the present invention. FIG. 5 is an exploded perspective view showing the first embodiment of the air conditioner of the present invention.
図 6は、 上記空気調和機において使用する電装品ュニットの一例の分解斜視図 である。  FIG. 6 is an exploded perspective view of an example of an electrical component unit used in the air conditioner.
図 7は、 上記電装品ュニットの平面略図である。  FIG. 7 is a schematic plan view of the electric component unit.
図 8は、 上記電装品ュニットの回路構成を示すプロック図である。  FIG. 8 is a block diagram showing a circuit configuration of the electric component unit.
図 9は、 上記電装品ュニットにおける発光表示部付近の構造を示す断面図であ る。  FIG. 9 is a cross-sectional view showing a structure near a light emitting display unit in the electric component unit.
図 1 0は、 上記電装品ュニットの回路構成を示すブロック図である。  FIG. 10 is a block diagram showing a circuit configuration of the electrical component unit.
図 1 1は、 上記電装品ュニットの回路構成の変更例を示すプロック図である。 図 1 2は、 上記空気調和機の電装品ユニットの配置例を示す模式図である。 図 1 3は、 上記電装品ュニットを分割構成した場合の配置例を示す模式図であ る。  FIG. 11 is a block diagram showing a modification of the circuit configuration of the electrical component unit. FIG. 12 is a schematic diagram showing an example of the arrangement of the electrical component units of the air conditioner. FIG. 13 is a schematic diagram showing an arrangement example when the electric component unit is divided and configured.
図 1 4は、 上記電装品ュニットを分割構成した場合の他の配置例を示す模式図 である。  FIG. 14 is a schematic diagram showing another example of arrangement when the electrical component unit is divided and configured.
図 1 5は、 従来例における電装品ュニットの配置例を示す模式図である。 発明を実施するための最良の形態  FIG. 15 is a schematic diagram showing an example of arrangement of electrical component units in a conventional example. BEST MODE FOR CARRYING OUT THE INVENTION
次にこの発明の空気調和機の具体的な実施の形態について図面を参照しつつ詳 細に説明するが、 まず第 1の実施の形態について説明する。 この空気調和機は室 外機と室内機とより成る構造のもので、 以下の説明は壁掛け型の室内機について 行う。  Next, a specific embodiment of the air conditioner of the present invention will be described in detail with reference to the drawings. First, the first embodiment will be described. This air conditioner has a structure consisting of an outdoor unit and an indoor unit, and the following description will be made for a wall-mounted indoor unit.
(第 1実施形態)  (First Embodiment)
まず図 3、 図 4及び図 5に基づいて、 その内部構造について説明する。 まず図 5に示しているように、 室内機の室内機ケーシング 1は、 室内熱交換器 4、 クロ スフローファン 9、 電装品ユニット 1 4等の主要構成部品の取付けられる本体ケ 一シング 1 aと、 この本体ケーシング 1 aの前面に取付けられる前面グリル 5と、 前面グリル 5のさらに前面に取付けられる前面パネル 7とより成るもので、 その 全体として上下方向寸法よりも幅方向寸法が長い横長形状となされている。 この 内、 前面パネル 7は使用者が任意に取外し可能となっているが、 本体ケーシング 1 aと前面ダリノレ 5とは、 使用者が取外しできないようになっている。 そして図 3、 図 4のように、 上記室内機ケーシング 1内に、 前側熱交換器 2と後側熱交換 器 3とを逆 V字状に配置して構成されたプレートフィン形の室内熱交換器 4が配 置されている。 この室内機ケーシング 1には、 図 4のように、 その前面グリル 5 の天井部分に天面吸込口 6が形成され、 前面パネル 7に前面吸込口 8が形成され ている。 このうち天面吸込口 6は前面グリル 5の天井部分を格子状にして形成さ れており、 また上記前面吸込口 8は前面パネル 7の中央やや上部において、 上方 に向けた開口を横方向に延設することによつて形成されている。 また上記室内熱 交換器 4の逆 V字状の内側には、 クロスフローファン 9が設けられている。 この クロスフローファン 9は軸流ファンと呼ばれているもので、 その軸方向が室内機 ケーシング 1の長手方向に沿うように配置されている。 そしてクロスフローファ ン 9の背後にスクロール部 1 0が形成され、 室内機ケーシング 1の前面側下部に 開口する吹出口 1 1と滑らかに連設されている。 First, the internal structure will be described with reference to FIGS. 3, 4, and 5. First, as shown in Fig. 5, the indoor unit casing 1 of the indoor unit consists of a main unit casing 1a on which the main components such as the indoor heat exchanger 4, cross flow fan 9, and electrical component unit 14 are attached. And a front grille 5 attached to the front of the body casing 1a, and a front panel 7 attached to the front of the front grille 5 as a whole. It has been done. Of these, the front panel 7 can be removed by the user arbitrarily. The 1a and the front Darinole 5 are not removable by the user. As shown in Figs. 3 and 4, a plate-fin type indoor heat exchange system in which the front heat exchanger 2 and the rear heat exchanger 3 are arranged in an inverted V-shape in the indoor unit casing 1 described above. Instrument 4 is located. As shown in FIG. 4, the indoor unit casing 1 has a top surface suction port 6 formed in a ceiling portion of a front grille 5 and a front surface suction port 8 formed in a front panel 7. Among them, the top surface suction port 6 is formed by making the ceiling of the front grille 5 into a lattice shape, and the front side suction port 8 has an upward opening at the center of It is formed by extending. A cross flow fan 9 is provided inside the inverted V shape of the indoor heat exchanger 4. The cross flow fan 9 is called an axial fan, and is arranged so that the axial direction thereof is along the longitudinal direction of the indoor unit casing 1. A scroll portion 10 is formed behind the cross flow fan 9, and is smoothly connected to an air outlet 11 opening at a lower portion on the front side of the indoor unit casing 1.
上記吹出口 1 1の上側壁面 1 2は、 上記前側熱交換器 2の下部に位置するドレ ンパン 1 3と" ~体に成形されており、 この吹出口 1 1の上部の位置であって、 上 記ドレンパン 1 3の前面側の位置、 つまり上記ドレンパン 1 3と前面パネル 7と の間の位置には、 電装品ユニット 1 4が配置されている。 なお背側熱交換器の下 部には、 背面側ドレンパン 1 5が配置されている。  The upper wall surface 12 of the outlet 11 is formed in a body with a drain pan 13 located at a lower part of the front heat exchanger 2, and is located at an upper part of the outlet 11, An electrical component unit 14 is disposed at a position on the front side of the drain pan 13, that is, between the drain pan 13 and the front panel 7. The rear side drain pan 15 is arranged.
上記室内機そのもの及び室内機ケーシング 1は、 図 1及び図 2に示すように横 長のものであって、 上記前面吸込口 8及び吹出口 1 1は、 室内機ケーシング 1の 長手方向 (横方向) に沿って延びる態様で形成されている。 また上記電装品ュニ ット 1 4は、 上記吹出口 1 1の上部の位置であって、 上記ドレンパン 1 3の前面 側の位置において、 図 1及び図 2に示しているように、 室内機ケーシング 1の長 手方向に沿って横方向に延びる態様でもって構成されている。  The indoor unit itself and the indoor unit casing 1 are horizontally elongated as shown in FIGS. 1 and 2, and the front intake port 8 and the air outlet 11 are disposed in the longitudinal direction of the indoor unit casing 1 (lateral direction). ). The electrical component unit 14 is located at a position above the outlet 11 and at a position in front of the drain pan 13 as shown in FIG. 1 and FIG. The casing 1 is configured to extend in the lateral direction along the longitudinal direction.
上記電装品ュニット 1 4の具体的な構造について、 図 6、 図 7及び図 8に基づ いて説明する。 図 6において、 2 0は電装品ュニット 1 4を収納する電装品ケー ス、 2 1は電装品ユニット 1 4を覆う電装品カバーであって、 両者 2 0、 2 1間 に電装品ュニット 1 4が配置される。 電装品ュニット 1 4は、 図 8のように、 商 用電源 (交流 1 0 0 V又は交流 2 0 0 V) に接続される電源入力部としての端子 盤 2 2、 交流回路部 2 3、 直流高圧回路部 2 4、 直流低圧回路部 2 5、 C P U制 御部 2 6、 発光表示部 2 7とから成り、 図 6及び図 7に示すように、 上記直流高 圧回路部 2 4が第 1プリント基板 2 8に、 上記直流低圧回路部 2 5が第 2プリン ト基板 2 9に、 また上記発光表示部 2 7が表示用基板 3 0にそれぞれ装着されて レ、る。 そして図 6及び図 7のように、 上記端子盤 2 2、 交流回路部 2 3、 直流高 圧回路部 2 4、 直流低圧回路部 2 5、 C P U制御部 2 6は、 図において右側から 左側に向けて、 室内機ケーシング 1の長手方向に沿って直列にレイアウトされた 状態で配置されると共に、 上記電装品ケース 2 0に取付けられる。 また上記電装 品カバー 2 1の裏側に上記表示用基板 3 0が取付けられ、 この状態でもって上記 電装品カバー 2 1で上記電装品ケース 2 0を覆う。 上記電装品カバー 2 1には、 発光表示部 2 7の L E D、 7セグメント L E D等 (発光表示手段) を外部から観 察可能なように、 それに対応する位置に開口 3 1 · 3 1が形成されている。 The specific structure of the electrical component unit 14 will be described with reference to FIGS. 6, 7, and 8. FIG. In FIG. 6, reference numeral 20 denotes an electrical component case for accommodating the electrical component unit 14, 21 denotes an electrical component cover for covering the electrical component unit 14, and the electrical component unit 14 is located between the two 20 and 21. Is arranged. As shown in Fig. 8, the electrical component unit 14 is connected to a commercial power source (AC 100 V or AC 200 V) as a power input terminal. Panel 22, AC circuit 23, DC high-voltage circuit 24, DC low-voltage circuit 25, CPU control 26, and light-emitting display 27, as shown in Figs. 6 and 7, The DC high voltage circuit section 24 is mounted on the first printed circuit board 28, the DC low voltage circuit section 25 is mounted on the second printed circuit board 29, and the light emitting display section 27 is mounted on the display board 30. It has been. As shown in FIGS. 6 and 7, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, the DC low-voltage circuit section 25, and the CPU control section 26 are arranged from right to left in the figure. Along with this, it is arranged in a state of being laid out in series along the longitudinal direction of the indoor unit casing 1 and attached to the electrical component case 20. The display substrate 30 is attached to the back side of the electrical component cover 21. In this state, the electrical component case 21 is covered with the electrical component cover 21. The electrical component cover 21 has openings 3 1 and 3 1 at corresponding positions so that the LEDs of the light-emitting display section 27 and 7-segment LEDs (light-emitting display means) can be externally observed. ing.
上記電装品ユニット 1 4においては、 その全体を横長に形成するため、 上記第 1プリント基板 2 8、 第 2プリント基板 2 9、 及び表示用基板 3 0はいずれもで きるだけ横長に形成されている。 そして上記第 1プリント基板 2 8と第 2プリン ト基板 2 9との間は、 基板対基板コネクタ 3 9によってハーネスを用いない状態 (ハーネスレス) で接続されている。  In the electrical component unit 14, the first printed circuit board 28, the second printed circuit board 29, and the display board 30 are all formed as long as possible in order to form the entirety horizontally. I have. The first printed board 28 and the second printed board 29 are connected by a board-to-board connector 39 without using a harness (harnessless).
上記第 1プリント基板 2 8に設けられた直流高圧回路部 2 4においては、 S W トランス 4 1、 整流ダイオード 4 2、 1次側 S W素子 4 3等の発熱部品を使用し ているが、 これら自己発熱の多い電気部品 4 1、 4 2、 4 3は、 図 7に示してい るように、 上下方向に延びる第 1プリント基板 2 8の上方位置に配置し、 各電気 部品 4 1、 4 2、 4 3の放熱の促進を図ると共に、 他の電気部品に放熱の影響が 及ぶのを防止している。 また上記電装品ユニット 1 4は、 上記したように電装品 ケース 2 0内に収納されると共に、 電装品カバー 2 1によって覆われるが、 電装 品ケース 2 0の上部と電装品カバー 2 1の上部との間に放熱孔として一定の隙間 (図 7において、 符号 4 5で示す部分) を設け、 この隙間を前面側に向けて開放 し、 これによりその前面側を流通する空気によって、 自己発熱の多い電気部品 4 1、 4 2、 4 3の放熱の促進を図っている。 また放熱孔を前面側に向けて開放す ることにより、 ドレン水の浸入を防止すると共に、 機器の信頼性を維持している。 上記空気調和機にぉレ、ては、 クロスフローファン 9を駆動する D C P WM型の 室内ファン駆動モータが、 図 1において右側に、 また水平フラップを駆動制御す るフラップ制御用モータ (ステッピングモータ) 力 図 1において左側にそれぞ れ配置されているが、 図 8に示すように、 室内ファン駆動モータ 3 5に対しては 直流高圧回路部 2 4から電力が供給され、 またフラップ制御用モータ 3 6に対し ては直流低圧回路部 2 5から電力が供給されている。 すなわち図 6及び図 7のよ うに、 直流高圧回路部 2 4を右側、 直流低圧回路部 2 5をその左側に配置してい る訳であるが、 それと同様に、 高圧駆動ァクチユエータとしての室内ファン駆動 モータ 3 5を右側、 低圧駆動ァクチユエータとしてのフラップ制御用モータ 3 6 をその左側に配置することにより、 各回路部 2 4、 2 5と各ァクチユエータ、 3 6とをできるだけ近接して配置するようにしているのである。 In the DC high-voltage circuit section 24 provided on the first printed circuit board 28, heat-generating components such as a SW transformer 41, a rectifier diode 42, and a primary-side SW element 43 are used. The electric components 41, 42, 43 generating much heat are arranged above the first printed circuit board 28 extending in the vertical direction as shown in FIG. 43 In addition to promoting heat radiation, it also prevents other electric components from being affected by heat radiation. The electrical component unit 14 is housed in the electrical component case 20 and covered by the electrical component cover 21 as described above, but the upper part of the electrical component case 20 and the upper part of the electrical component cover 21 are also covered. A gap (portion indicated by reference numeral 45 in FIG. 7) is provided as a heat radiating hole, and this gap is opened toward the front side, whereby air flowing through the front side generates self-heating. The aim is to promote the heat radiation of many electrical components 41, 42, 43. In addition, opening the heat radiation hole toward the front side prevents ingress of drain water and maintains the reliability of the equipment. In the above air conditioner, a DCP WM type indoor fan drive motor that drives the cross flow fan 9 is on the right side in Fig. 1 and a flap control motor (stepping motor) that drives and controls the horizontal flap. The power is supplied to the indoor fan drive motor 35 from the DC high-voltage circuit section 24, as shown in Fig. 8, and the flap control motor 3 Power is supplied to DC 6 from DC low voltage circuit section 25. That is, as shown in FIGS. 6 and 7, the DC high-voltage circuit section 24 is arranged on the right side, and the DC low-voltage circuit section 25 is arranged on the left side. Similarly, the indoor fan drive as a high-voltage drive actuator is arranged. By arranging the motor 35 on the right side and the flap control motor 36 as a low-voltage drive actuator on the left side, each circuit section 24, 25 and each actuator 36 are arranged as close as possible. -ing
また図 8に示しているように、 室内機は室外機 3 7と接続されるが、 この接続 は V V Fライン 3 8でもって行われる。 この ?ラィン3 8は、 一対の電源用 交流ラインと内^ M云送のための伝送ラインとより成るものであるが、 この内外接 続ラインとしての V V Fライン 3 8を上記端子盤 2 2に対して、 図 6及び図 7に おける右側から挿入、 接続し得るようにしている。 すなわち、 この V V Fライン 3 8の端子盤 2 2への挿入方向を上記室内機ケ一シング 1の長手方向であって、 上記交流回路部 2 3から上記直流低圧回路部 2 5へと向かう方向にしているので ある。 このような方向に向けて V V Fライン 3 8を挿入することによって、 V V Fライン 3 8の挿入、 接続作業の容易化が図れると共に、 V V Fライン 3 8と上 記各回路部 2 3、 2 4、 2 5、 2 6との干渉が防止でき、 ライン引回し作業を容 易化し、 またノイズを低減することが可能となる。  Also, as shown in FIG. 8, the indoor unit is connected to the outdoor unit 37, and this connection is made by the VVF line 38. this ? The line 38 is composed of a pair of AC lines for power supply and a transmission line for internal / external transmission. A VVF line 38 as an internal / external connection line is connected to the terminal board 22. It can be inserted and connected from the right side in FIGS. 6 and 7. That is, the insertion direction of the VVF line 38 into the terminal board 22 is the longitudinal direction of the indoor unit casing 1 and the direction from the AC circuit section 23 to the DC low voltage circuit section 25. ing. By inserting the VVF line 38 in such a direction, the insertion and connection work of the VVF line 38 can be facilitated, and the VVF line 38 and the above-mentioned circuit sections 23, 24, and 2 Interference with 5, 26 can be prevented, making it easier to route lines and reducing noise.
そして上記電装品カバー 2 1の各開口 3 1 · 3 1は、 図 9に示すように、 前面 ダリノレ 5の観察窓 3 2を通してその外部からユーザが観察し得るようになされて レ、る。 なお上記前面パネル 5は、 同図にも示しているように、 前面グリル 5の全 体を覆うものではなく、 前面グリル 5の下部近傍は外部に露出させている。  Then, as shown in FIG. 9, the openings 3 1, 31 of the electrical component cover 21 are formed so that a user can observe them from the outside through the observation window 32 of the front linole 5. As shown in the figure, the front panel 5 does not cover the whole of the front grill 5 but exposes a lower portion of the front grill 5 to the outside.
上記空気調和機においては、 図 1 2に示しているように、 上記電装品ユニット 1 4の室内機ケーシング 1の長手方向に沿う寸法 aが、 室内機ケーシング 1の長 手方向寸法 L Aの少なくとも 1 / 2以上の長さになるように電装品ュニット 1 4 を配置してある。 この電装品ユニット 1 4の長さ aは、 長いほど好ましく、 従つ て室内機ケーシング 1の長手方向寸法 L Aの少なくとも 2ノ 3以上の長さにする。 なお最も好ましいのは、 電装品ュニット 1 4の室内機ケーシング 1の長手方向に 沿う寸法 aを、 室内機ケ一シング 1の長手方向寸法 L Aと略等しい長さにするこ とである。 このように電装品ユニット 1 4を構成し得る最大長さ、 又はそれと極 めて近い長さとすれば、 その断面積を最小又は最小近くにすることができ、 電装 品ュニット 1 4の配置位置の自由度の大幅向上、 通風抵抗の大幅減少等により、 室内機の大幅なコンパクト化、 及び空調性能の大幅な向上を図ることが可能とな る。 In the air conditioner, as shown in FIG. 12, the dimension a along the longitudinal direction of the indoor unit casing 1 of the electrical component unit 14 is at least one of the longitudinal dimensions LA of the indoor unit casing 1. Electrical unit so that the length is at least 1/2 Is arranged. The length a of the electrical component unit 14 is preferably as long as possible. Accordingly, the length a of the indoor unit casing 1 should be at least two to three or more of the longitudinal dimension LA. Most preferably, the dimension a of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is set to be substantially equal to the longitudinal dimension LA of the indoor unit casing 1. If the maximum length that can constitute the electrical component unit 14 or the length that is very close to the maximum, the cross-sectional area can be minimized or minimized, and the position of the electrical component unit 14 can be determined. By greatly improving the degree of freedom and greatly reducing ventilation resistance, it is possible to significantly reduce the size of indoor units and significantly improve air-conditioning performance.
上記空気調和機においては、 上記電装品ュニット 1 4が、 端子盤 2 2、 交流回 路部 2 3、 直流高圧回路部 2 4、 直流低圧回路部 2 5、 C P U制御部 2 6を、 室 内機ケーシング 1の長手方向に沿って直列にレイァゥトすることによって構成さ れているので、 電装品ユニット 1 4は細長い形状となる。 そのため、 従来のよう に室内機ケーシング 1内の側部において、 電装品ュニット 1 4を配置するための 特別のスペースを必要とはしない。 従って、 室内機の長手方向寸法を小さくでき、 室内機をコンパク ト化できる。 またこのことを逆にいえば、 従来と同一寸法の室 内機において、 室内熱交換器 4やクロスフローファン 9の配置スペースを増加し 得るということであり、 このため従来よりも空調性能を向上することが可能にな る。  In the air conditioner, the electrical component unit 14 includes a terminal board 22, an AC circuit section 23, a DC high-voltage circuit section 24, a DC low-voltage circuit section 25, and a CPU control section 26. Since the electrical component unit 14 is formed by laying out in series along the longitudinal direction of the machine casing 1, the electrical component unit 14 has an elongated shape. Therefore, a special space for disposing the electrical component unit 14 is not required on the side portion of the indoor unit casing 1 as in the conventional case. Therefore, the length of the indoor unit in the longitudinal direction can be reduced, and the indoor unit can be made compact. Conversely, in other words, in the indoor unit of the same size as the conventional one, the space for installing the indoor heat exchanger 4 and the cross flow fan 9 can be increased, so that the air conditioning performance is improved compared to the conventional one. It becomes possible to do.
上記空気調和機では、 直流高圧回路部 2 4側に近接して室内ファン駆動モータ In the above air conditioner, the indoor fan drive motor
(高圧駆動ァクチユエ一タ) 3 5が配置されることになるので、 接続ハーネスが 短くなり、 その構成を簡素化できると共に、 結線、 組立作業が容易となる。 また、 直流低圧回路部 2 5側に近接してファン制御用モータ (低圧駆動ァクチユエ一 タ) 3 6が配置されることになるので、 接続ハーネスがさらに短くなり、 その構 成を簡素化できると共に、 結線、 組立作業がさらに容易となる。 さらに直流高圧 回路部 2 4と直流低圧回路部 2 5とを単位プロックとして、 それぞれ 1枚のプリ ント基板 2 8、 2 9に収めているので、 メンテナンス作業を容易化できる。 (High-voltage drive actuator) Since 35 is arranged, the connection harness is shortened, the configuration can be simplified, and the connection and assembly work becomes easy. In addition, since the fan control motor (low-voltage drive actuator) 36 is arranged close to the DC low-voltage circuit section 25, the connection harness is further shortened, and the configuration can be simplified. , Connection and assembly work becomes easier. Further, since the DC high-voltage circuit section 24 and the DC low-voltage circuit section 25 are housed in one printed circuit board 28, 29 as a unit block, maintenance work can be simplified.
上記空気調和機においては、 自己発熱量の多い電気部品 4 1、 4 2、 4 3をプ リント基板 2 8の上方位置に配置しているので、 各電気部品 4 1、 4 2、 4 3の 放熱の促進を図ると共に、 他の電気部品に放熱の影響が及ぶのを防止できる。 ま た、 放熱孔 4 5を前面側に向けて開放し、 これによりその前面側を流通する空気 によって、 自己発熱量の多い電気部品 4 1、 4 2、 4 3の放熱の促進を図ること が可能であり、 またまた放熱孔 4 5を前面側に向けて開放しているので、 ドレン 水の浸入を防止し、 機器の信頼性を維持できる。 In the above air conditioner, the electric components 41, 42, 43 generating a large amount of self-heating are arranged above the printed circuit board 28, so that each of the electric components 41, 42, 43 is disposed. Heat dissipation can be promoted, and the effect of heat dissipation on other electrical components can be prevented. In addition, the heat radiating holes 45 are opened toward the front side, so that the air flowing through the front side can promote the heat radiation of the electric components 41, 42, 43 having large self-heating. It is possible, and since the heat radiating holes 45 are open to the front side, the intrusion of drain water can be prevented, and the reliability of the equipment can be maintained.
また上記空気調和機においては、 V V Fライン 3 8の端子盤 2 2への挿入方向 を上記室内機ケーシング 1の長手方向であって、 上記交流回路部 2 3から上記直 流低圧回路部 2 5へと向かう方向にしているのが、 このような方向に向けて V V Fライン 3 8を挿入することによって、 ^ ラィン3 8の揷入、 接続作業の容 易化が図れると共に、 V V Fライン 3 8と上記各回路部 2 4、 2 5、 2 6との干 渉が防止でき、 ライン引回し作業を容易化し、 またノイズを低減することが可能 となる。  In the air conditioner, the insertion direction of the VVF line 38 into the terminal board 22 is in the longitudinal direction of the indoor unit casing 1 and from the AC circuit section 23 to the DC low-pressure circuit section 25. By inserting the VVF line 38 in such a direction, the insertion of the line 38 and the connection work can be facilitated, and the VVF line 38 and the above Interference with each of the circuit sections 24, 25, and 26 can be prevented, the line routing work can be simplified, and noise can be reduced.
上記空気調和機においては、 吹出口 1 1の上部の位置であって、 ドレンパン 1 3の前面側の位置に電装品ユニット 1 4を配置しているが、 この領域は、 吹出側 と吸込側とのショートサーキット防止のためにデッドスペースとしておく必要の ある部分である。 このような領域に電装品ユニット 1 4を配置しているので、 室 内機ケーシング 1内のスペースをより一段と有効に活用でき、 この結果、 室内機 をさらにコンパクト化したり、 空調性能をさらに向上することが可能となる。 また上記空気調和機においては、 電装品ュニット 1 4を電装品ケース 2 0内に 収納すると共に、 電装品カバー 2 1で覆っている。 従って、 ドレンパン 1 3内の ドレン水が電装品ュニット 1 4に悪影響を及ぼすのを抑制でき、 そのため電装品 ュニット 1 4の信頼性を向上できる。 また据付け工事時におけるドレン排水機能 のチェック用の注水、 あるいは室内熱交換器 4の洗浄時における洗浄剤、 洗浄水 が電装品ュニット 1 4に悪影響を及ぼすのも抑制でき、 これらに対しても電装品 ユニット 1 4の信頼性を向上できる。 なおドレン水に対する遮蔽機構とは、 ドレ ン水によってショート等の悪影響が生じるのを抑制できればよいのであり、 必ず しもドレン水の浸入を完全を遮断しなければならない訳ではなく、 電装品ケース 2 0や電装品カバー 2 1のいずれかを省略したり、 あるいは単に仕切り板を設け たりする対策もこれに含まれる。 そして上記空気調和機においては、 前面パネル 7、 前面グリル 5、 電装品カバー 2 1を取外せば、 上記電装品ュニット 1 4は外 部に露呈する。 この状態において、 その前面から各電気部品の点検、 交換、 修理 等が行えるので、 部品交換ゃメンテナンス作業を容易化できる。 In the air conditioner described above, the electrical component unit 14 is disposed at a position above the outlet 11 and in front of the drain pan 13, and this region includes the outlet side and the suction side. This is the part that needs to be left as a dead space in order to prevent short circuits. Since the electrical component unit 14 is arranged in such an area, the space in the indoor unit casing 1 can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It becomes possible. In the air conditioner, the electrical component unit 14 is housed in the electrical component case 20 and is covered with the electrical component cover 21. Therefore, it is possible to suppress the drain water in the drain pan 13 from adversely affecting the electrical component unit 14, thereby improving the reliability of the electrical component unit 14. In addition, it is possible to suppress water injection for checking the drain drainage function during installation work, or to prevent the cleaning agent and washing water when cleaning the indoor heat exchanger 4 from adversely affecting the electrical component unit 14. The reliability of the product unit 14 can be improved. The shielding mechanism for the drain water only needs to be able to suppress the adverse effects such as a short circuit caused by the drain water. It is not always necessary to completely block the infiltration of the drain water. This includes measures such as omitting one of 0 and the electrical component cover 21 or simply providing a partition plate. And in the above air conditioner, the front panel 7. If the front grille 5 and the electrical component cover 21 are removed, the electrical component unit 14 will be exposed to the outside. In this state, inspection, replacement, repair, and the like of each electrical component can be performed from the front, so that component replacement and maintenance work can be simplified.
上記空気調和機では、 上記電装品ュニット 1 4に発光表示部 2 7が設けられて おり、 この発光表示部 2 7は、 室内機ケーシング 1の前面側の観察窓 3 2を通し て外部から観察可能な位置に配置されているが、 このように電装品ュニット 1 4 に一体的に発光表示部 2 7が設けられているので、 電装品ュニット 1 4と発光表 示部 2 7とを電気的に接続するためのリード線等の配線長を従来のように長くす る必要はなく、 従来よりも配線長を大幅に短くでき、 コストダウンを図れると共 に、 各電気部品と発光表示部 2 7とを近接配置することによってメンテナンス作 業を容易化することも可能となる。 さらに電装品ユニット 1 4を、 電装品ケース 2 0内に収納して電装品カバ一 2 1で覆うことにより単一のュニットとして柱形 状に構成しているので、 製造、 及び取扱いが容易となり、 コストダウンを図れる と共に、 信頼性も向上する。  In the air conditioner, a light-emitting display 27 is provided on the electrical component unit 14, and the light-emitting display 27 can be observed from outside through the observation window 32 on the front side of the indoor unit casing 1. Although the light emitting display unit 27 is provided integrally with the electrical component unit 14 as described above, the electrical component unit 14 and the light emitting display unit 27 are electrically connected to each other. It is not necessary to increase the wiring length of the lead wires and the like for connection to the conventional equipment, and the wiring length can be significantly reduced compared to the conventional equipment, reducing costs and reducing the number of electrical components and the light emitting display 2 By arranging 7 in close proximity, maintenance work can be facilitated. Furthermore, since the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, manufacturing and handling are simplified. In addition to reducing costs, reliability is also improved.
図 1 0には、 上記各回路の配置状態を模式的に示している。 上記した通り、 端 子盤 2 2、 交流回路部 2 3、 直流高圧回路部 2 4、 直流低圧回路部 2 5の各回路 部を室内機ケーシング 1の長手方向に沿って配置している。 図 1 1はその変更例 を示したもので、 同図 (a ) は A C— D C変換部を機外に有する製品に好適なレ ィアウトを示し、 直流高圧回路部 2 4、 直流低圧回路部 2 5の各回路部を室内機 ケーシング 1の長手方向に沿って配置している。 また同図 (b ) は降圧をトラン ス等で行う製品に好適なレイアウトを示し、 端子盤 2 2、 交流高圧回路部 2 3、 交流低圧回路部 2 3 a、 直流低圧回路部 2 5の各回路部を室内機ケーシング 1の 長手方向に沿つて配置したものである。  FIG. 10 schematically shows the arrangement state of each circuit. As described above, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, and the DC low-voltage circuit section 25 are arranged along the longitudinal direction of the indoor unit casing 1. Fig. 11 shows an example of the modification. Fig. 11 (a) shows a layout suitable for a product having an AC-DC converter outside the machine. DC high-voltage circuit 24, DC low-voltage circuit 2 5 are arranged along the longitudinal direction of the indoor unit casing 1. Figure (b) shows a layout suitable for a product that performs step-down by a transformer or the like. Each of the terminal board 22, AC high-voltage circuit 23, AC low-voltage circuit 23a, and DC low-voltage circuit 25 The circuit section is arranged along the longitudinal direction of the indoor unit casing 1.
(電装品ュニットの形状に関する変更例)  (Example of change regarding the shape of electrical component unit)
上記空気調和機においては、 電装品ュニット 1 4を、 電装品ケース 2 0内に収 納して電装品カバー 2 1で覆うことにより単一のユニットとして柱形状に構成し、 製造、 及び取扱いを容易とし、 コストダウンを図ると共に、 信頼性を向上してい るが、 図 1 3に示すように、 電装品ュニット 1 4を略直線上に並設した複数のュ ニット 1 4 a、 1 4 b、 1 4 cとして構成してもよレ、。 具体的には、 複数のプリ ント基板でもって電装品ュニット 1 4を構成し、 これら複数のプリント基板を同 一の基板に装着すると共に、 相互に電気的に接続するのである。 そして電装品ュ ニット 1 4を上記のように構成する場合、 コンパクト化、 取扱い容易性の観点か ら、 電装品ュニット 1 4はその全体として略柱状に形成しておくのが好ましい。 また、 電装品ュニット 1 4は、 図 1 4に示すように、 複数のュニット 1 4 a、 1 4 b、 1 4 cとして構成し、 各ユニット 1 4 a、 1 4 b、 1 4 cを長手方向に対 しても、 また長手方向と交差する方向 (空気流方向) に対しても相互にずらして 配置して構成してもよい。 このように構成したことで、 その配置位置の選択自由 度を向上でき、 機種に応じた適正配置が可能となる。 In the above air conditioner, the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, and the manufacturing and handling are performed. Although it is easy, cost reduction and reliability are improved, as shown in Fig. 13, multiple units 14a, 14b in which electrical component units 14 are arranged in a substantially straight line , Which may be configured as 14c. Specifically, multiple pre- The electrical component unit 14 is composed of a printed circuit board, and the plurality of printed circuit boards are mounted on the same board and are electrically connected to each other. When the electrical component unit 14 is configured as described above, the electrical component unit 14 is preferably formed in a substantially columnar shape as a whole from the viewpoint of compactness and easy handling. As shown in Fig. 14, the electrical component unit 14 is configured as a plurality of units 14a, 14b, and 14c, and each unit 14a, 14b, and 14c is a longitudinal unit. They may be arranged so as to be shifted from each other in the direction and also in the direction (air flow direction) crossing the longitudinal direction. With this configuration, the degree of freedom in selecting the arrangement position can be improved, and appropriate arrangement according to the model can be performed.
上記空気調和機の室内機は、 壁掛け型のものに限らず、 床置き型、 天井埋込み 型等種々の設置形態のものを含んでいる。 従って長手方向とは、 使用者から見て 左右方向を意味することがあるし、 また上下方向、 あるいは水平方向を意味する 場合もある。  The indoor unit of the air conditioner is not limited to a wall-mounted type, and includes various installation forms such as a floor-standing type and a ceiling-mounted type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction or the horizontal direction.

Claims

請 求 の 範 囲 The scope of the claims
1. 室内機ケーシング (1) 内に電装品ユニット (14) を配置して成り、 上記 電装品ユニット (14) は室内機ケーシング (1) の長手方向に沿って、 電源入 力部 (22) 側から順に、 高圧回路部 (24) と低圧回路部 (25) とを配置し ていることを特徴とする空気調和機。 1. The electrical component unit (14) is arranged inside the indoor unit casing (1). The electrical component unit (14) extends along the longitudinal direction of the indoor unit casing (1). An air conditioner comprising a high-voltage circuit section (24) and a low-voltage circuit section (25) arranged in this order from the side.
2. 交流電源入力部 (22) 側から順に、 交流回路部 (23) 、 直流高圧回路部 (24) 、 直流低圧回路部 (25) を配置していることを特徴とする請求項 1の 空気調和機。 2. The air according to claim 1, wherein an AC circuit section (23), a DC high voltage circuit section (24), and a DC low voltage circuit section (25) are arranged in order from the AC power input section (22). Harmony machine.
3. 交流電源入力部 (22) 側から順に、 交流高圧回路部 (23) 、 交流低圧回 路部 (23 a) 、 直流低圧回路部 (25) を配置していることを特徴とする請求 項 1の空気調和機。 3. An AC high-voltage circuit section (23), an AC low-voltage circuit section (23a), and a DC low-voltage circuit section (25) are arranged in this order from the AC power input section (22). 1, air conditioner.
4. 直流電源入力部側から順に、 直流高圧回路部 (24) 、 直流低圧回路部 (2 5) を配置していることを特徴とする請求項 1の空気調和機。 4. The air conditioner according to claim 1, wherein a DC high-voltage circuit section (24) and a DC low-voltage circuit section (25) are arranged in order from the DC power input section.
5. 室内機ケーシング (1) 内において高圧駆動ァクチユエータ (35) が配置 されている側に上記電源入力部 (22) を設けていることを特徴とする請求項 1 請求項 4のいずれかの空気調和機。 5. The air according to claim 1, wherein the power input section (22) is provided on a side of the indoor unit casing (1) where the high-pressure drive actuator (35) is arranged. Harmony machine.
6. 室内機ケーシング (1) 内において高圧駆動ァクチユエータ (35) が配置 されているのとは反対側で、 上記低圧回路部 (25) の位置する側に低圧駆動ァ クチユエータ (36) を設けていることを特徴とする請求項 5の空気調和機。 6. A low-pressure drive actuator (36) is provided on the side of the indoor unit casing (1) opposite to the side on which the high-pressure drive actuator (35) is located, and on the side where the low-pressure circuit section (25) is located. The air conditioner according to claim 5, wherein:
7. 上記高圧駆動ァクチユエータ (35) は、 室内ファン駆動モータであり、 ま た上記低圧駆動ァクチユエ一タ (36) は、 フラップ制御用モータであることを 特徴とする請求項 6の空気調和機。 7. The air conditioner according to claim 6, wherein the high-pressure drive actuator (35) is an indoor fan drive motor, and the low-pressure drive actuator (36) is a flap control motor.
8. 上記回路部 (24) (25) の単数又は複数が単位プロックとして 1枚のプ リント基板 (28) (29) に収められ、 複数のプリント基板 (28) (29) が室内機ケーシング (1) の長手方向に並設されていることを特徴とする請求項 1〜請求項 7のいずれかの空気調和機。 8. One or more of the above circuit parts (24) and (25) are housed in a single printed circuit board (28) (29) as a unit block, and a plurality of printed circuit boards (28) (29) are The air conditioner according to any one of claims 1 to 7, wherein the air conditioner is arranged side by side in the longitudinal direction of (1).
9. 上記電装品ユニット (14) の配置されるスペースの長手方向寸法は、 室内 機ケーシング (1) の長手方向寸法の 1 2以上の寸法であることを特徴とする 請求項 1〜請求項 8のいずれかの空気調和機。 9. The longitudinal dimension of the space in which the electrical component unit (14) is arranged is at least 12 times the longitudinal dimension of the indoor unit casing (1). Any of the air conditioners.
10. 上記電装品ユニット (14) は、 室内機ケ一シング (1) の吹出口 (1 1) 上部の位置で、 室内熱交換器 (4) のドレンパン (13) と室内機ケーシン グ (1) の前面パネル (7) との間に位置する横方向に延びる領域に配置されて いることを特徴とする請求項 1〜請求項 9のいずれかの空気調和機。 10. The electrical component unit (14) is located above the air outlet (1 1) of the indoor unit casing (1) and the drain pan (13) of the indoor heat exchanger (4) and the indoor unit casing (1). The air conditioner according to any one of claims 1 to 9, wherein the air conditioner is disposed in a region extending in a lateral direction between the front panel (7) and the front panel (7).
1 1. 上記電装品ユニット (14) において、 自己発熱量の多い電気部品 (4 1) (42) (43) をプリント基板 (28) の上方側に配置していることを特 徴とする請求項 10の空気調和機。 1 1. Claims characterized in that, in the electrical component unit (14), the electrical components (4 1) (42) (43) generating a large amount of self-heating are arranged above the printed circuit board (28). Item 10. Air conditioner.
12. 上記電装品ユニット (14) の冷却のための放熱孔 (45) を、 前面側に 向けて開放していることを特徴とする請求項 10又は請求項 1 1の空気調和機。 12. The air conditioner according to claim 10, wherein a heat radiating hole (45) for cooling the electrical component unit (14) is opened toward a front side.
13. 上記電源入力部 (22) は端子盤として構成され、 この端子盤の VVFラ イン (38) の挿入方向を、 上記室内機ケーシング (1) の長手方向としている ことを特徴とする請求項 1〜請求項 1 2のいずれかの空気調和機。 13. The power input unit (22) is configured as a terminal board, and the insertion direction of the VVF line (38) of the terminal board is set to the longitudinal direction of the indoor unit casing (1). The air conditioner according to any one of claims 1 to 12.
14. 上記 VVFライン (38) の揷入方向は、 上記電源入力部 (22) 力、ら低 圧回路部 (25) へと向かう方向であることを特徴とする請求項 13の空気調和 機。 14. The air conditioner according to claim 13, wherein an input direction of the VVF line (38) is a direction toward the power input section (22) and a low voltage circuit section (25).
PCT/JP2000/005366 1999-08-31 2000-08-10 Air conditioner WO2001016532A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU64739/00A AU747235B2 (en) 1999-08-31 2000-08-10 Air conditioner
EP00951934A EP1134505A4 (en) 1999-08-31 2000-08-10 Air conditioner
HK02104324.7A HK1042541B (en) 1999-08-31 2002-06-07 Air conditioner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24510199A JP3259719B2 (en) 1999-08-31 1999-08-31 Air conditioner
JP11/245101 1999-08-31

Publications (1)

Publication Number Publication Date
WO2001016532A1 true WO2001016532A1 (en) 2001-03-08

Family

ID=17128639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/005366 WO2001016532A1 (en) 1999-08-31 2000-08-10 Air conditioner

Country Status (7)

Country Link
EP (1) EP1134505A4 (en)
JP (1) JP3259719B2 (en)
KR (1) KR100385610B1 (en)
CN (1) CN1162653C (en)
AU (1) AU747235B2 (en)
HK (1) HK1042541B (en)
WO (1) WO2001016532A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3986279B2 (en) * 2001-09-11 2007-10-03 シャープ株式会社 Air conditioner
KR100734364B1 (en) * 2005-12-28 2007-07-03 엘지전자 주식회사 Air-conditioner
JP2007303745A (en) * 2006-05-11 2007-11-22 Fujitsu General Ltd Air conditioner
JP5062112B2 (en) * 2008-09-09 2012-10-31 ダイキン工業株式会社 Air conditioner indoor unit
JP5062114B2 (en) * 2008-09-09 2012-10-31 ダイキン工業株式会社 Air conditioner indoor unit
JP5062115B2 (en) * 2008-09-09 2012-10-31 ダイキン工業株式会社 Air conditioner indoor unit
CN102444956B (en) * 2010-09-30 2016-03-30 乐金电子(天津)电器有限公司 The control box structure of air conditioner room unit
JP2013053820A (en) * 2011-09-05 2013-03-21 Panasonic Corp Air conditioner
JP5902487B2 (en) * 2012-01-17 2016-04-13 シャープ株式会社 Air conditioner indoor unit
JP5886156B2 (en) * 2012-07-20 2016-03-16 日立アプライアンス株式会社 Air conditioner
JP6128437B2 (en) * 2013-08-05 2017-05-17 株式会社富士通ゼネラル Air conditioner indoor unit
JP6238759B2 (en) * 2014-01-15 2017-11-29 三菱電機株式会社 Electric box and air conditioner indoor unit
US10488073B2 (en) 2014-12-31 2019-11-26 Gd Midea Air-Conditioning Equipment Co., Ltd. Air conditioner
JP6566711B2 (en) * 2015-05-08 2019-08-28 日立ジョンソンコントロールズ空調株式会社 Air conditioner
JP6464991B2 (en) * 2015-10-23 2019-02-06 ダイキン工業株式会社 Air conditioner
JP6154923B2 (en) * 2016-02-10 2017-06-28 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー(ホンコン)リミテッド Air conditioner
CN108386918B (en) * 2018-05-04 2023-10-13 珠海格力电器股份有限公司 air conditioner
JP2021143785A (en) * 2020-03-12 2021-09-24 株式会社富士通ゼネラル Air conditioner
JP2023182158A (en) * 2022-06-14 2023-12-26 シャープ株式会社 Indoor machine of air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629028U (en) * 1985-06-28 1987-01-20
JPH1137501A (en) * 1997-07-15 1999-02-12 Daikin Ind Ltd Indoor unit of air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07109722B2 (en) * 1987-11-25 1995-11-22 株式会社小糸製作所 Vehicle lighting
JPH08135998A (en) * 1994-11-14 1996-05-31 Hitachi Ltd Air conditioner
JPH08271024A (en) * 1995-03-31 1996-10-18 Toshiba Ave Corp Air conditioner
JP3593418B2 (en) * 1996-07-03 2004-11-24 東芝キヤリア株式会社 Ceiling cassette type air conditioner
JP3085225B2 (en) * 1996-12-27 2000-09-04 ダイキン工業株式会社 Air conditioner
EP0887598B1 (en) * 1997-06-27 2003-05-02 Mitsubishi Heavy Industries, Ltd. Air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629028U (en) * 1985-06-28 1987-01-20
JPH1137501A (en) * 1997-07-15 1999-02-12 Daikin Ind Ltd Indoor unit of air conditioner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1134505A4 *

Also Published As

Publication number Publication date
CN1162653C (en) 2004-08-18
EP1134505A1 (en) 2001-09-19
JP3259719B2 (en) 2002-02-25
KR100385610B1 (en) 2003-05-27
HK1042541A1 (en) 2002-08-16
CN1335922A (en) 2002-02-13
AU6473900A (en) 2001-03-26
HK1042541B (en) 2005-03-24
JP2001065914A (en) 2001-03-16
EP1134505A4 (en) 2006-05-24
AU747235B2 (en) 2002-05-09
KR20010080343A (en) 2001-08-22

Similar Documents

Publication Publication Date Title
WO2001016532A1 (en) Air conditioner
JP5425524B2 (en) Outdoor unit
JP5300660B2 (en) Wall-mounted air conditioner
JP3287343B2 (en) Air conditioner
JP5029136B2 (en) Outdoor unit for electrical component unit and air conditioner
WO2021077802A1 (en) Integrated air source heat pump
JP2002206770A (en) Air conditioner
CN105142941A (en) Air conditioning device for vehicle
JP2017180996A (en) Air conditioner
JP2002106887A (en) Outdoor machine for air conditioning device
JP2008267656A (en) Air conditioner
JP2004170054A (en) Air conditioner
CN216532306U (en) Outdoor cabinet
CN213713270U (en) Floor type air conditioner indoor unit and air conditioner
JPH0322679Y2 (en)
JP2018021708A (en) Air conditioner
CN213687083U (en) Air conditioning system of movable working cabin and movable working cabin
JPH04356633A (en) Air conditioner
WO2022254479A1 (en) Indoor unit and air conditioner
JP2023141082A (en) Electric component box and outdoor unit of air conditioner
KR20030067258A (en) The control-box of a three way belching air-conditioner
JP4459019B2 (en) Air conditioner indoor unit
JP2006153342A (en) Air conditioner
KR0128927Y1 (en) Electronical parts box in outdoor machine of airconditioner
KR100512945B1 (en) A serial typed external machine of multi air-conditioner

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00802415.4

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AU CN KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1020017005340

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 64739/00

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2000951934

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000951934

Country of ref document: EP