JP4357950B2 - Outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit of a split type air conditioner or a heat pump hot water supply device, and more particularly to a cover structure of an outdoor unit that covers piping and a wiring lead-out portion from the outdoor unit.

  As an air conditioner that performs air conditioning such as indoor air conditioning, a split type in which an outdoor unit and an indoor unit are separated is generally widely used. In addition, there is a heat pump type hot water supply device that performs indoor floor heating and hot water supply, and this heat pump hot water supply device is provided with a heat source for hot water supply and a hot water supply tank in an outdoor unit. The outdoor unit of the split type air conditioner and the heat pump water heater is installed as close as possible to the outer wall surface of the building so as not to get in the way.

  Moreover, there exists an outdoor unit described in Unexamined-Japanese-Patent No. 7-63376 (refer patent document 1) in a split type air conditioner.

  In the outdoor unit of the split type air conditioner, a compressor, a heat exchanger, a blower, and electrical components that electrically control them are arranged as components in the outdoor unit body. Lead wires from the electrical components are connected to external electrical wiring (crossover wiring) via an SL connector as a terminal portion, and this external electrical wiring is electrically connected to an external city power supply via an indoor unit. The SL connector is covered with a wiring lid.

  Further, the outdoor unit of the split type air conditioner is provided with a packed valve, and the outdoor unit is connected to the indoor unit side via the refrigerant pipe (crossover pipe) by this packed valve, thereby constituting a refrigeration cycle.

On the other hand, the outdoor unit includes a box-shaped outdoor unit body, and a side surface of the outdoor unit body has a packed valve cover that covers the wiring lid and the packed valve that are spaced apart from each other vertically. It is attached. The packed valve cover also has a function of a connection wiring cover and has a complicated shape. Therefore, the packed valve cover is formed by molding a resin material.
JP-A-7-63376

  In a conventional split air conditioner outdoor unit, the packed valve cover attached to one side surface of the outdoor unit main body also has a function of a connection wiring cover. Separately from the packed valve cover made of resin, a separate piece of wiring lid and fireproof plate were necessary.

  In addition, it is necessary to stably clamp the wiring lead-out part and external electrical wiring, but the packed valve cover made of resin with low physical and mechanical strength has a clamping function for external electrical wiring on this packed valve cover. Is difficult to add, and it is necessary to provide the wiring clamp mechanism as an independent separate piece. The number of parts increases, making the assembly work of the outdoor unit complicated and difficult.

  The packed valve cover is also disposed in the immediate vicinity of the crossover wiring (external electrical wiring). For this reason, even if only the terminal part which is a wiring lead-out part is covered with a wiring cover or a fireproof board and made incombustible, it is not necessarily sufficient for PL compatibility. In order to make the entire wiring outlet portion incombustible, there is a problem of how to configure the wiring outlet portion of the outdoor unit.

  The present invention has been made in consideration of the above-described circumstances, and has an outdoor unit in which the cover means is made of metal, the number of parts is reduced, and the cover part of the wiring outlet portion is made nonflammable to improve the reliability corresponding to PL. The purpose is to provide.

  Another object of the present invention is to improve the mechanical and physical strength in the vicinity of the wiring opening, to stably clamp the electric wiring with the wiring clamping means integrated with the cover means, simplify the assembly work, and The object is to provide an outdoor unit with improved performance.

The present invention, in order to solve the above problems, as described in claim 1, e Bei the the air-conditioning or hot water supply heat source to the outdoor unit main body and the electric components for driving and controlling the heat source, the electrical component A wiring outlet portion of the external electric wiring to which the terminal portion from the outside is connected, and a connection valve means for connecting the piping from the heat source for air conditioning or hot water supply to an external transition piping, on one side portion of the outdoor unit main body. In the outdoor unit provided at the upper and lower portions, and the wiring outlet and the connecting valve means are covered with a packed valve cover so as to be removable from the outside, the packed valve cover is formed of a metal sheet metal material, and a metal plate Is formed by connecting the terminal cover part and valve cover part, which are bulged and formed by bulging and forming a hemming process on the periphery, to the outside. Covers the upper part of the side of the main body in a liquid-tight manner, covers the connector from the outside, and forms a bulge that extends in the longitudinal direction of the packed valve cover and is connected to the valve cover, while the middle is perpendicular to the longitudinal direction. A guide part that directly clamps external electrical wiring is formed on the inside, and the valve cover part is a packed valve. Swells in a box shape so as to cover the outside, and the bottom part is a part that guides the drain generated by the packed valve or the like as the valve means to the bottom plate of the outdoor unit body, and is flush with the top part of the packed valve cover. On the side, a locking hook that hooks to one side of the outdoor unit main body is integrally molded, and a screw fixing part is provided near the wiring clamp part, and the packed valve cover is It is obtained by a structure for fixing fastening to the side surface portion.

  INDUSTRIAL APPLICABILITY The present invention can be applied to an outdoor unit of a split type air conditioner or a heat pump water heater, and this outdoor unit is made of a cover means made of metal, and covers parts of a wiring outlet portion of external electric wiring (external connecting wiring). Can be made non-flammable to improve the reliability for PL, and the fire prevention mechanism of the wiring outlet part, for example, the wiring lid and fire prevention board is not required, the number of parts is reduced, and the assembly work of the cover means is simplified. It is possible to improve the appearance and merchantability.

  Further, the outdoor unit according to the present invention improves the physical and mechanical strength in the vicinity of the wiring outlet by using the cover means made of metal, while the wiring clamp means formed integrally with the cover means stabilizes the electrical wiring. And clamping the electrical wiring does not require a separate piece of wiring clamping means.

  Embodiments of an outdoor unit according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows an example in which the present invention is applied to an outdoor unit 10 of a split type air conditioner.

  As shown in FIG. 1, the outdoor unit 10 has a box-shaped outdoor unit body 11, and a fan guard 12 is provided on the front surface of the outdoor unit body 11, while a packed valve cover is provided on a side surface of the outdoor unit body 11. 13 is removably attached as a valve cover means. The packed valve cover 13 is formed of a metal sheet metal material, and covers the upper part of the side surface of the outdoor unit body 11 in a liquid-tight manner.

  The outdoor unit 10 of the split type air conditioner has an exploded assembly structure shown in FIG. 2, a planar structure shown in FIG. 5 with the upper cabinet removed, and a side structure shown in FIG. 6 with the back plate removed. The outdoor unit main body 11 is formed as a main body casing, and includes a bottom plate 15, a front cabinet 16 standing on the front surface of the bottom plate 15, side cabinets 17 and 18 provided on both sides of the front cabinet 16, a front cabinet 16, and The upper cabinet 19 as a top plate attached to the top of the side cabinets 17 and 18 is formed in a box shape.

  The interior of the box-shaped outdoor unit body 11 is separated into two left and right chambers 21 and 22 by a partition wall 20, and a compressor 23 is installed in one chamber 21 and a blower 24 is installed in the other chamber 22. The blower 24 includes a propeller fan 25 and a fan motor 26 that drives the fan 25.

  An L-shaped heat exchanger 27 in plan view is provided from the back side to one side of the blower 24, and an inverter device 28 is provided above the blower 24. The inverter device 28 controls the drive of the compressor 23 and the blower 24. While the compressor 23 and the heat exchanger 27 constitute a heat source for air conditioning of the outdoor unit 10, the heat exchanger 27 on the back side portion of the blower 24 is exposed on the back side of the outdoor unit body 11, and It constitutes the backside exterior.

  Further, an accumulator 30 is provided in parallel on the suction side of the compressor 23 installed in the outdoor unit main body 11, and a four-way valve 31 is provided on the discharge side of the compressor 23. The accumulator 30, the compressor 23, the four-way valve 31, and the heat exchanger 27 are connected by a refrigerant pipe 32 to constitute an outdoor refrigeration cycle.

  Further, a packed valve 35 is provided at the lower part on the side cabinet 17 side, which is one side of the outdoor unit main body 11. The packed valve 35 functions as a connection valve means, and connects the refrigerant pipe 32 of the outdoor unit 10 to a refrigerant pipe that is a transition pipe from the indoor unit side (not shown).

  On the other hand, an SL connector 36 serving as a terminal portion is provided above the packed valve 35. The SL connector 36 is attached to a terminal block 37 of the side cabinet 17, for example. The terminal block 37 is formed by partially raising the upper portion of the side cabinet 17 obliquely inward.

  As shown in FIGS. 6 and 7, the SL connector 36 constitutes a wiring lead portion that connects lead wires from electrical components such as the inverter device 28 and connects the external electrical wiring 62 via the terminal board 61. is doing. The SL connector 36 connects each lead wire to an external electrical wiring that is an external crossover wiring.

  A packed valve cover 13 is detachably attached to the metal side cabinet 17 which is a side surface portion of the outdoor unit main body 11 from the outside. The packed valve cover 13 together with the side cabinet 17 forms the outside of the outdoor unit 10.

  The packed valve cover 13 includes a terminal cover portion 40 that covers the SL connector 36 from the outside and a valve cover portion 41 that covers the packed valve 35 from the outside, and is configured as a side surface cover means of the outdoor unit body 11. .

  As shown in FIGS. 3 and 4, the packed valve cover 13 is formed by molding a metal plate, and hemming is performed on the entire circumference. By performing hemming processing on the entire circumference of the packed valve cover 13, the mechanical and physical strength can be improved, the cover end surface can be smoothed, and injury due to the cover end surface can be prevented.

  In addition, the packed valve cover 13 is formed in a concavo-convex shape so that the terminal cover portion 40 and the valve cover portion 41 bulge outward. For example, the terminal cover portion 40 bulges out in a cross section (plane cross section) in an arc shape to form a guide portion for external electric wiring inside. The bulging part of the terminal part cover part 40 extends in the longitudinal direction of the packed valve cover 13 and is connected to the valve cover part 41, while being recessed in the lateral direction so that the middle is perpendicular to the longitudinal direction.

  As shown in FIGS. 7 and 8, the recessed portion 43 of the terminal cover portion 40 has a clearance between the end surface of the side cabinet 17 managed to a required constant value, and external electric wiring (connection) that is a transitional wiring. Cable) 62 is directly clamped. Accordingly, the recessed portion 43 of the terminal cover portion 40 functions as a wiring crank portion and constitutes a wiring clamp means 44. As shown in FIG. 3, a screw fixing portion 45 that fastens and fixes the packed valve cover 13 to the side cabinet 17 is provided in the vicinity of the wiring clamp portion 43 of the terminal portion cover portion 40.

  Further, the valve cover portion 41 of the packed valve cover 13 swells in a substantially box shape and accommodates the packed valve 35 so as to wrap it from the outside. The packed valve cover 13 is formed of a metal material, and mechanical and physical strength can be improved by expanding the terminal cover 40 and the valve cover 41 by sheet metal or the like.

  Further, locking hooks 46 and 47 are provided on the top and one side of the packed valve cover 13 as shown in FIGS. The locking hook portions 46 and 47 are formed integrally with the packed valve cover 13. By hooking these locking hook portions 46 and 47 into the locking holes of the side cabinet 17, the packed valve cover 13 is temporarily fixed to the side surface portion of the outdoor unit main body 11, and further, the screw fixing portion 45 and the lower end portion. The packed valve cover 13 is stably fixed by screwing the screw fixing portion 48 of the screw.

  On the other hand, a drain recovery mechanism 50 is provided at the bottom of the packed valve cover 13 as shown in FIG. The drain collecting mechanism 50 is configured by a portion 51 formed on the bottom of the valve cover 41, and the drain collecting mechanism 50 collects the drain that is condensed water generated by the packed valve 35 or the like as the valve means. It is guided to the bottom plate 15 of the main body 11.

  Next, the operation of the outdoor unit of the split type air conditioner will be described.

  As shown in FIG. 1, the outdoor unit 10 is air-conditioned in cooperation with the indoor unit by driving a compressor 23 and a blower 24. The refrigerant discharged from the compressor 23 or the refrigerant returning to the compressor 23 is heat-exchanged by the heat exchanger 27 by the operation of the outdoor unit 10. The heat exchange in the heat exchanger 27 is performed by driving the blower 24, and by driving the blower 24, the outside air sucked from the back side or the side of the outdoor unit body 11 passes through the heat exchanger 27 to generate heat. The exchanged and heat-exchanged outside air is blown forward through the fan guard 12 on the front surface of the outdoor unit main body 11.

  On the other hand, a metal packed valve cover 13 is attached to the side surface of the outdoor unit main body 11, and the packed valve cover 13 covers the packed valve 35 and the SL connector 36 as a terminal portion from the outside. The terminal portion cover 40 of the packed valve cover 13 is liquid-tightly attached to the side cabinet 13 of the outdoor unit body 11. Thereby, even if the outdoor unit 10 is installed outdoors exposed to wind and rain, it is possible to reliably prevent rainwater or the like from entering the SL connector 36.

  As shown in FIG. 8, the external electrical wiring 62 connected to the SL connector 36 is provided below the SL connector 36, clamped by the wiring clamp means 44, and then refrigerant refrigerant piping from the back side opening of the valve cover portion 41. It is pulled out together with the transition pipe and connected to the indoor unit side. The external electrical wiring is connected to an external city power supply via the indoor unit.

  As shown in FIG. 3, at that time, the packed valve cover 13 is formed of a metal material, and the terminal portion cover portion 40 and the valve cover portion 41 are bulged and processed to be uneven, so that the mechanical and physical strength is improved. Can be improved. By making the packed valve cover 13 made of metal, it is possible to eliminate the need for a wiring lead-out portion fire prevention mechanism, such as a wiring lid or a fire prevention plate, which has been conventionally formed as a separate piece. The terminal cover portion 40 of the packed valve cover 13 can also be used.

  As shown in FIGS. 3 and 8, the packed valve cover 13 can form a wiring clamp portion 43 by recessing the terminal portion cover portion 40, and the wiring clamp means 44 can be used as an external wiring. Electric wiring can be directly clamped, and wiring clamping means consisting of separate pieces is not required.

  Furthermore, the packed valve cover 13 is provided with a drain collecting mechanism 50 in the shape of a single piece at the bottom of the valve cover 41, so that the drain collecting mechanism 50 can be formed at the bottom of the valve cover 41 and is configured as a separate piece. By providing this drain collection mechanism 50 that is not necessary, the drain (condensation water) dropped into the valve cover 41 of the packed valve cover 13 can be collected and introduced into the bottom plate 15 of the outdoor unit main body 11.

  On the other hand, the outdoor unit 10 has a metal packed valve cover 13 attached to one side surface of the outdoor unit main body 11, and the packed valve cover 13 allows the wiring outlet portion of the PL connector 36 and the packed valve 35 that are spaced apart from each other up and down. It covers from the outside. That is, the packed valve cover 13 forms the outside of the outdoor unit main body, improves the appearance of the wiring connection portion and the pipe connection portion, and enhances the merchantability.

  In addition, in one Embodiment, although the example which applied this invention to the outdoor unit of a split type air conditioner was shown, this invention can also be applied to the outdoor unit of a heat pump hot-water supply apparatus. The heat pump hot water supply device performs indoor floor heating and hot water supply, and an outdoor unit is provided with a heat source for hot water supply and a hot water supply tank. The hot water supply pipe of the outdoor unit is connected to the indoor hot water supply equipment via an external connecting pipe by the connection valve means, while the terminal part from the electrical component that controls the heating of the hot water supply heat source is formed as a wiring outlet part. . The connection valve means and the wiring outlet part may be covered with a plate-like cover means having the same configuration as the packed valve cover in which the terminal part from the split type air conditioner is provided in the outdoor unit.

The perspective view which shows one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner. The disassembled perspective view which shows the outdoor unit of the split type air conditioner of FIG. The perspective view which looked at the packed valve cover attached to the side part of the outdoor unit of the split type air conditioner shown by FIG. 1 and FIG. 2 from the inner side. (A), (B) and (C) are the left view, the front view, and the right view which show the packed valve cover of FIG. The top view which removes the upper cabinet of one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner, and shows it. The rear view which removes the backplate of one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner, and shows it. The perspective view which shows the packed valve and terminal board of one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner. The longitudinal cross-sectional view which shows the state which clamped the external electric wiring of one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner with the packed valve cover. The cross-sectional view which shows the state which clamped the external electric wiring of one Embodiment which applied the outdoor unit which concerns on this invention to the split type air conditioner with the packed valve cover.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Outdoor unit, 11 ... Outdoor unit main body, 12 ... Fan guard, 13 ... Packed valve cover (side surface cover means), 15 ... Bottom plate, 16 ... Front cabinet, 17, 18 ... Side cabinet, 19 ... Upper cabinet, 20 ... partition walls, 21, 22 ... chambers, 23 ... compressors, 24 ... blowers, 25 ... propeller fans, 26 ... fan motors, 27 ... heat exchangers, 28 ... inverter devices (electric parts), 30 ... accumulators, 31 ... Four-way valve, 32 ... refrigerant pipe, 35 ... packed valve (connecting valve means), 36 ... SL connector (terminal part, wiring outlet part), 37 ... terminal block, 40 ... terminal part cover part, 41 ... valve cover part, 43 ... concave portion (mounting clamp portion), 44 ... wiring clamp means, 45 ... screw fixing portion, 46, 47 ... locking hook portion, 50 ... drain recovery mechanism, 51 ... threaded portion, 1 terminal board, 62 ... external electrical wiring.

Claims (1)

E Bei the air conditioner outdoor unit main body or the hot water supply heat source and the electric components for driving and controlling the heat source, and the wiring port out of the external electrical wiring terminal portions from the electrical component is connected, or for the conditioning Connection valve means for connecting the pipe from the heat source for hot water supply to the external transition pipe is provided on the upper and lower portions of one side of the outdoor unit body, and the wiring outlet and the connection valve means can be removed from the outside. In an outdoor unit covered with a packed valve cover,
The packed valve cover is formed of a metal sheet metal material, and is concavo-convex shaped by a bulge forming process so as to bulge the metal plate outward, and a terminal cover part and a valve cover part having a hemming process on the peripheral part, Is formed by connecting the top and bottom,
The terminal cover part liquid-tightly covers the upper part of the side part of the outdoor unit body, covers the connector from the outside, and forms a bulging part that extends in the longitudinal direction of the packed valve cover and is connected to the valve cover part. A guide part that directly clamps external electrical wiring is formed on the inner side, the middle part being recessed in the lateral direction so as to be orthogonal to the longitudinal direction, and the gap between the end face of the side cabinet is controlled to a required constant value,
The valve cover part swells in a box shape so as to cover the packed valve so as to wrap from the outside, and the bottom part is a part that guides the drain generated by the packed valve or the like as the valve means to the bottom plate of the outdoor unit body,
A locking hook portion that is hooked to one side portion of the outdoor unit main body is formed integrally with the top portion of the packed valve cover, and a screw fixing portion is provided in the vicinity of the wiring clamp portion. An outdoor unit characterized by being configured to be fastened and fixed to a side surface portion .

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