JP2011232007A - Ceiling embedding type air conditioner - Google Patents

Abstract

An object of the present invention is to provide a ceiling-embedded air conditioner that can be safely and easily installed.
An air conditioner according to the present invention includes a first plug-in connector 26 provided at the tip of a lead wire 27 extending from an electrical component box 16 of an indoor unit body, and an electrical component disposed on a decorative panel. And a second plug-in connector 22 that is electrically connected to the first plug-in connector 26, and is provided at the tip of the lead wire 24 extending from the first plug-in connector 22. The first plug-in connector 26 is fixed to the indoor unit main body so that the connection end 23 of the connector 26 faces the indoor side, and the connection end 23 of the first plug-in connector 26 can be exposed indoors. It is characterized by becoming.
[Selection] Figure 4

Description

  The present invention relates to a ceiling-embedded air conditioner.

In an indoor unit of a ceiling-embedded air conditioner, an indoor unit main body is disposed behind the ceiling, a lower surface portion of the indoor unit main body faces the room with a ceiling surface, and a lower surface portion of the indoor unit main body is covered with a decorative panel. In this air conditioner, the indoor unit main body and the decorative panel are separated from each other at the time of factory shipment, and the decorative panel is assembled to the lower surface portion of the indoor unit main body arranged on the back of the ceiling at the installation destination.
By the way, in the indoor unit main body, an electrical component box for storing a control circuit board and the like is arranged in addition to the indoor heat exchanger and the blower. In addition, the decorative panel is provided with electrical components such as a driving motor for the wind direction adjusting plate, a display unit for displaying the operating condition of the air conditioner, and a receiving unit for receiving a control signal of the remote controller. Therefore, when the decorative panel is assembled to the indoor unit body, it is necessary to electrically connect the circuit board of the indoor unit body and the electrical components of the decorative panel.
Conventionally, an air conditioner that electrically connects a lead wire extending from an electrical component box of an indoor unit body and a lead wire extending from an electrical component of a decorative panel via a connector is known (for example, a patent) Reference 1).

JP 2004-293976 A

However, in a conventional ceiling-embedded air conditioner (see, for example, Patent Document 1), the lead wire extending from the indoor unit body side and the lead wire extending from the decorative panel side are to be connected during installation work. Then, the operator uses these hands to connect these lead wires at a high place where the scaffold near the ceiling is unstable.
Therefore, a ceiling-embedded air conditioner in which an operator can connect the lead wire on the indoor unit main body side and the lead wire on the decorative panel side with one hand and can be installed safely and easily is desired. It is rare.

  Accordingly, an object of the present invention is to provide a ceiling-embedded air conditioner that can be installed safely and easily than before.

  The ceiling-embedded air conditioner of the present invention that solves the above problems accommodates an indoor heat exchanger, a blower, and an electrical component box, and is embedded in the ceiling so that the lower surface portion faces the indoor side of the air-conditioned room. In a ceiling-embedded air conditioner comprising: an indoor unit body to be disposed; and a decorative panel attached from the indoor side so as to cover a lower surface portion of the indoor unit body, a first lead extending from the electrical component box A first plug-in connector provided at the tip of the wire, and a second lead wire extending from an electrical component provided on the decorative panel, and electrically connected to the first plug-in connector A second plug-in connector, wherein the first plug-in connector is connected to the indoor unit such that a connection end of the first plug-in connector with respect to the second plug-in connector faces the indoor side. The first plug-in type while being fixed to the main body The connecting end of the connector is characterized in that it becomes possible exposed to the indoor side.

  According to the ceiling-embedded air conditioner of the present invention, installation work can be performed safely and easily as compared with the prior art.

(A) is the perspective view which shows a mode that the ceiling embedded type air conditioner looked up from the bottom, (b) is the exploded perspective view of the ceiling embedded type air conditioner divided into the indoor unit main body and the decorative panel. is there. It is sectional drawing which shows typically the II-II cross section of Fig.1 (a). It is a partial expansion perspective view which shows a mode that the suction grille was rotated below with respect to the outer frame part of a decorative panel. It is a perspective view of the electrical component box to which the 1st plug-in type connector is fixed, and is a figure which shows a mode that the attachment seat arrange | positioned at the lower part of an electrical component box was looked up from diagonally downward. (A) And (b) is a perspective view which shows the aspect by which a lead wire is connected to a control circuit board within an electrical component box. It is a perspective view which shows a mode that several 1st plug-in type connectors were attached to the attachment seat collectively. It is a perspective view which shows a mode that the attachment seat of a 1st plug-in type connector is detachably attached to an electrical component box. It is the figure which looked at the electrical component box from the VIII direction of FIG. It is a perspective view which shows the modification of the electrical component box which attached the attachment seat of FIG.

Hereinafter, embodiments of a ceiling-embedded air conditioner (hereinafter, simply referred to as “air conditioner”) according to the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front-rear, left-right, upper-lower directions are based on the front-rear, left-right, upper-lower directions shown in FIGS.
As will be described later in detail, the air conditioner of the present invention has a main feature in the arrangement structure of connectors attached to lead wires extending from the indoor unit main body side. Here, after first describing the overall configuration of the air conditioner, the connector arrangement structure will be described.

(Overall configuration of air conditioner)
As shown in FIGS. 1 (a) and 1 (b), an air conditioner A includes a substantially rectangular parallelepiped indoor unit main body 1 fixed to a space behind a ceiling (not shown) via a fastener such as a suspension bolt, A decorative panel 2 is provided so as to cover the lower surface portion of the indoor unit body 1 from the indoor side of the air-conditioned room (the lower side of FIGS. 1A and 1B). The decorative panel 2 in this embodiment is fixed to the indoor unit body 1 with screws 19 as shown in FIG.

  As shown in FIG. 2, the indoor unit main body 1 houses the indoor heat exchanger 10 and the cross-flow fan 9 (blower) in a substantially rectangular parallelepiped housing 29, as shown in FIG. Thus, the electrical component box 16 is accommodated.

  The indoor heat exchanger 10 of the indoor unit main body 1 shown in FIG. 2 is connected to a decompressor, an outdoor heat exchanger, and a compressor (not shown) arranged outdoors, by a predetermined pipe, and the refrigerant circulates. An annular circuit (heat pump) is configured.

  The cross-flow fan 9 shown in FIG. 2 is configured to discharge air in an air-conditioned room sucked through a suction grill 2a, which will be described later, by driving to the room from discharge ports 13, 13 which will be described later.

  An electrical component box 16 shown in FIG. 1B accommodates a control circuit board (not shown) that controls all electrical components accommodated in the indoor unit body 1. In FIG. 1B, reference numeral 28 denotes a mounting seat for fixing a plurality of first plug-in connectors 26 (see FIG. 4) described later together.

As shown in FIG. 2, the decorative panel 2 covers the lower surface portion of the indoor unit main body 1 so as to block the opening 15 opened in the ceiling surface 14.
As shown in FIG. 1A, the decorative panel 2 has a rectangular shape in plan view, and the suction grille 2a that is rectangular in plan view and disposed in the approximate center of the decorative panel 2, and the suction grille 2a. And an outer frame portion 2b that is arranged so as to surround.

  The suction grill 2a is for taking indoor air into the indoor unit main body 1. As shown in FIG. 2, the suction grill 2a is provided with a filter 4 for filtering dust in the sucked air. Yes. The filter 4 is supported by a flange portion 11 formed on the suction grill 2a.

  As shown in FIG. 1A, the outer frame 2b is provided with a display 5a that displays the operating status of the air conditioner A and a receiver 5b that receives a control signal of a remote controller (not shown). ing.

In addition, slit-like discharge ports 13 and 13 are formed in the outer frame portion 2b so as to extend along both longitudinal sides of the suction grill 2a. The discharge ports 13 and 13 are for discharging again the air sucked from the room by the indoor unit body 1 through the suction grille 2a into the room.
In each of the discharge ports 13 and 13, wind direction plates 6 and 6 are arranged for changing the air discharge direction. As shown in FIG. 2, the wind direction plates 6 and 6 change the air discharge direction by the motor 17 attached to the wind direction plates 6 and 6 changing the angle of the wind direction plates 6 and 6. .

  Further, as shown in FIG. 3, the outer frame portion 2b supports one side of the suction grille 2a on the short side with a hinge (not shown), and the suction grille 2a is rotatable around the hinge. . Further, between the outer frame portion 2b and the suction grille 2a, dampers 21 and 21 are provided for supporting the rotated suction grille 2a at a predetermined rotation angle. Further, the above-described hinge (not shown) of the outer frame portion 2b is configured to detachably support the suction grille 2a, so that the suction grille 2a can be detached from the outer frame portion 2b.

In FIG. 3, reference numeral 18 denotes an opening for exposing the mounting seat 28 of the electrical component box 16 shown in FIG. 1B to the indoor side, and corresponds to an “opening” in the claims. Reference numeral 20 denotes a lid that is detachably attached to the decorative panel 2 and closes the opening 18 and corresponds to a “lid” in the claims.
As will be described in detail later, the lid 20 is removed from the decorative panel 2, whereby the first plug-in connector 26 fixed to the mounting seat 28 shown in FIG. 1B through the opening 18. The connection end 23 (see FIG. 4) of the (see FIG. 4) can be exposed indoors.

  According to the air conditioner A according to the present embodiment as described above, as shown in FIG. 2, when the cross-flow fans 9 and 9 are driven, the air in the air-conditioned room passes through the filter 4 of the suction grill 2a. The air is sucked into the interior of the indoor unit main body 1 and is discharged into the room from the discharge port 13 of the decorative panel 2 after passing through the indoor heat exchanger 10. Then, taking the air conditioner A during heating operation as an example, the indoor heat exchanger 10 is an indoor unit main body by a high-temperature and high-pressure refrigerant (hot gas) sent from the compressor (not shown) of the outdoor unit described above. Warm the air inhaled in 1. As a result, warm air is discharged from the discharge port 13.

(Connector arrangement structure)
Next, an arrangement structure of a connector (first plug-in connector) attached to a lead wire extending from the electrical component box 16 (see FIG. 1B) will be described. FIG. 4 is a perspective view of the electrical component box to which the first plug-in connector is fixed, and shows a state in which the mounting seat disposed at the lower portion of the electrical component box is looked up from obliquely below. FIGS. 5A and 5B are perspective views showing a state in which the lead wire is connected to the control circuit board in the electric component box. FIG. 6 is a perspective view showing a state in which a plurality of first plug-in connectors are attached to a mounting seat together.

  As shown in FIG. 4, the electrical component box 16 is a box having a rectangular parallelepiped shape, and the support member 30, on the inside of the side wall of the housing 29 of the indoor unit body 1 (see FIG. 1B). 30 is attached. In the present embodiment, as shown in FIG. 1B, the opening 18 (see FIG. 3) is attached to one of the short side walls (left side wall) of the four side walls of the housing 29. The mounting seat 28 faces. Incidentally, in FIG. 4, the indoor unit main body 1 (FIG. 1 (b)) is provided on the side opposite to the side fixed to the casing 29 of the electrical component box 16 (the front side of the sheet of FIG. 4) via a partition wall (not shown). The air flow passage in (see) is formed.

As described above, the electrical component box 16 has a control circuit board 37 (FIG. 5A) for controlling all the electrical components housed in the indoor unit body 1 (see FIG. 1B). And (b)).
As shown in FIGS. 5A and 5B, a lead wire 27 is connected to the control circuit board 37. The lead wire 27 corresponds to a “first lead wire” in the claims.
Note that the control circuit board 37 shown in FIGS. 5A and 5B shows only a part of the portion to which the lead wire 27 is connected for convenience of drawing, and the control circuit housed in the electrical component box 16 is shown. The entire substrate 37 is not shown.

The connection between the lead wire 27 and the control circuit board 37 shown in FIG. 5A is performed by connecting the housing connector 35 provided on the lead wire 27 and the post connector 36 provided on the control circuit board 37. It is. 5B, the lead wire 27 and the control circuit board 37 are connected to each other through the metal caulking material 38 at the end of the lead wire 27 with respect to the copper foil pattern (not shown) of the control circuit board 37. Connected.
The connection between the lead wire 27 and the control circuit board 37 is not limited to this, and various known connection methods can be employed.

Then, as shown in FIG. 4, the bundle of lead wires 27 connected to the control circuit board 37 extends outward from the two front and rear ends of the lower part of the electrical component box 16 and extends along the lower surface of the electrical component box 16. Are arranged as follows.
As shown in FIG. 6, the bundle of the lead wires 27 is divided into three groups, for a total of six, and the first plug-in connector 26 is connected to each tip. Note that FIG. 6 has an upside-down relationship with FIG. 4, and in FIG. 4, the first plug-in connector 26 faces downward, but in FIG. 6, it is expressed so as to face upward on the drawing. Yes.

The first plug-in connector 26 is a male connector having electrode pins (not shown). In the present embodiment, the six first plug-in connectors 26 are connected on the surface of the plate-shaped mounting seat 28. The end portions 23 are arranged and fixed so as to be arranged in a line.
As shown in FIG. 4, the mounting seat 28 to which the first plug connector 26 is fixed is fixed to the lower surface of the electrical component box 16 via a spacer 31. The spacer 31 is formed of a plate body bent in an L shape, and secures a space for arranging a bundle of lead wires 27 between the lower surface of the electrical component box 16 and the mounting seat 28.

  In this way, the first plug-in connector 26 fixed to the electrical component box 16 together via the mounting seat 28 has a connection end 23 with the second plug-in connector 22 to be described below, that is, the indoor side. These are fixed to the indoor unit main body 1 so as to face downward as shown in FIG.

The second plug-in connector 22 shown in FIG. 4 is a female connector that is connected to the first plug-in connector 26. The second plug-in connector 22 in the present embodiment has six so as to correspond to the first plug-in connector 26, but in FIG. 4, the description of the other five second plug-in connectors 22 is shown. Is omitted. The second plug-in connector 22 is connected to the electrical components of the decorative panel 2 (see FIG. 1A) via the lead wires 24, specifically, the display unit 5a (see FIG. 1A), the receiving unit. 5b (see FIG. 1 (a)), a motor 17 of the wind direction plate 6 (see FIG. 2) and the like are electrically connected.
The lead wire 24 corresponds to a “second lead wire” in the claims.

  Although not shown in FIG. 1B, the lead wire 24 is routed on the indoor unit body 1 side of the decorative panel 2 shown in FIG. 1B. Then, the first plug-in connector 26 and the second plug-in connector 22 shown in FIG. 4 face the indoor side through the opening 18 when the lid 20 shown in FIG. 3 is removed from the decorative panel 2. It will be.

  At this time, it is desirable that only the lead wire 24 faces the opening 18. Incidentally, as the wiring routed on the indoor unit body 1 side of the decorative panel 2 shown in FIG. 1B, in addition to the lead wire 24, the lead wire 27 as the first lead wire, the cross-flow fan 9 ( 2), a temperature sensor and a humidity sensor (not shown), a drain pump (not shown), a commercial power cord, and the like.

  The lead wires 24 are preferably allocated so that one second plug-in connector 22 corresponds to one electrical component of the decorative panel 2. By allocating the second plug-in connector 22 in this way, when one electrical component of the decorative panel 2 fails, the second plug-in connector 22 and the lead wire 24 connected to the allocated second plug-in connector 22 are combined. The electrical component can be replaced.

  Also, the lid body 20 that closes the opening 18 shown in FIG. 3 is connected to a plurality of first plug-in connectors 26 and a plurality of first plug-in connectors 26 on a surface facing the indoor side, that is, an area that is easily visible to the operator. It is desirable that a manual explaining the correspondence (connection procedure) with the second plug-in connector 22 is attached.

Next, the effect of the air conditioner A which concerns on this embodiment is demonstrated.
In this air conditioner A, the indoor grill body 1 shown in FIG. 1 (b) is placed behind the ceiling, and the installation grille 2 is attached to the indoor grill body 2 as shown in FIG. By rotating, the lid 20 faces the indoor side.

  Then, by removing the lid 20 from the decorative panel 2, a plurality of first plug-in connectors 26 that are fixed together on the mounting seat 28 and whose connection end faces the indoor side (operator side), and leads The second plug-in connector 22 attached to the wire 24 faces the indoor side through the opening 18. That is, according to this air conditioner A, an operator can face the first plug-in connector 26 and the second plug-in connector 22 from the indoor side without removing the entire decorative panel 2 from the indoor unit body 1. Can do.

  Moreover, according to this air conditioner A, since the 1st plug-in type connector 26 is being fixed to the indoor unit main body 1 (electric component box 16) side, the operator can carry out the 2nd plug-in type connector 22 with one hand. And can be inserted into the first plug-in connector 26. Therefore, according to this air conditioner A, unlike the conventional air conditioner (see, for example, Patent Document 1), the control housed in the electrical component box 16 of the indoor unit body 1 can be easily performed without using both hands. The circuit board 37 and the electrical components of the decorative panel 2 can be electrically connected, and the installation operation can be performed more safely and easily than in the past.

  Moreover, according to this air conditioner A, since the 1st plug-in type connector 26 is being fixed to the electrical component box 16, the control circuit board 37 accommodated in the electrical component box 16 and the 1st plug-in type connector Thus, the length of the lead wire 27 that connects to the cable 26 can be shortened.

  Moreover, according to this air conditioner A, since the 1st plug-in type connector 26 and the 2nd plug-in type connector 22 are faced indoors through the opening part 18 of the decorative panel 2, the exposed wiring part is shown. It can be limited to the opening part 18, and the beauty | look can be maintained. And the beauty | look can be improved by arrange | positioning the cover body 20 to this opening part 18. FIG.

  Moreover, according to this air conditioner A, among the wires routed on the indoor unit body 1 side of the decorative panel 2, only the lead wire 27 faces the opening 18, so other wires are intertwined. The first plug-in connector 26 and the second plug-in connector 22 can be more easily connected.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various form. In other embodiments described below, the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In the above-described embodiment, it is assumed that the mounting seat 28 of the first plug-in connector 26 is fixed to the electrical component box 16. However, in the present invention, the mounting seat 28 of the first plug-in connector 26 is fixed to the electrical component box. 16 can be detachably attached.

  Next, FIG. 7 referred to is a perspective view showing a state in which the mounting seat of the first plug-in connector is detachably attached to the electrical component box. FIG. 8 is a view of the electrical component box as viewed from the direction VIII in FIG. However, the lead wires are omitted in FIG. FIG. 9 is a perspective view showing a modification of the electrical component box to which the mounting seat of FIG. 7 is attached.

As shown in FIG. 7, the mounting seat 28 in this other embodiment arrange | positions the 1st plug-in type connector 26 by distributing back and forth 3 each.
And the sealing part 42 which seals the opening 33 formed in the lower surface of the electrical component box 16 is formed in the center part of the attachment seat 28 by press work so that it may become convex on the opening 33 side.
In FIG. 7, reference numeral 23 denotes a connection end portion of the first plug-in connector 26, reference numeral 27 denotes a lead wire, and reference numeral 31 denotes a spacer.

  As shown in FIG. 8, a switch 34 disposed in the electrical component box 16 faces the opening 33. This switch 34 is for the operator to check the operation of the air conditioner A (see FIG. 1A) (for example, check the operation of the drain pump) during installation work.

According to such an air conditioner A, the operation confirmation switch 34 (see FIG. 8) can be operated through the opening 18 of the decorative panel 2 shown in FIG. be able to.
As shown in FIG. 7, when the mounting seat 28 is attached to the electrical component box 16, the opening 33 can be sealed with good sealing performance by the sealing portion 42 of the mounting seat 28 that protrudes toward the opening 33.

Further, in the mounting seat 28 shown in FIG. 7, an opening can be formed by notching a portion corresponding to the sealing portion 42 as described below.
As shown in FIG. 9, the mounting seat 28 has an opening 44 formed by notching a portion corresponding to the sealing portion 42 of FIG. 7. A lid 45 that closes the opening 44 is attached to the attachment seat 28 with screws 19.
In FIG. 9, reference numeral 16 denotes an electrical component box, reference numeral 26 denotes a first plug-in connector, reference numeral 23 denotes a connection end of the first plug-in connector 26, reference numeral 27 denotes a lead wire, Reference numeral 31 denotes a spacer.

  According to the air conditioner A provided with the electrical component box 16, the lid 45 is removed from the mounting seat 28, so that the mounting seat 28 is different from the air conditioner A provided with the electrical component box 16 of FIG. The operator can operate the switch 34 (see FIG. 8) through the opening 44 and the opening 33 without being removed from the electrical component box 16.

DESCRIPTION OF SYMBOLS 1 Indoor unit body 2 Cosmetic panel 2a Suction grill 2b Outer frame part 9 Cross-flow fan (blower)
DESCRIPTION OF SYMBOLS 10 Indoor heat exchanger 16 Electrical component box 18 Opening part 20 Cover body 22 2nd plug-in type connector 23 Connection end part 24 Lead wire (2nd lead wire)
26 First plug-in type connector 27 Lead wire (first lead wire)
28 Mounting Seat A Air Conditioner

Claims (7)

An indoor unit body that houses the indoor heat exchanger, the blower, and the electrical component box, and is embedded in the ceiling so that the lower surface portion faces the indoor side of the air-conditioned room,
A decorative panel attached from the indoor side so as to cover the lower surface of the indoor unit body,
In a ceiling-embedded air conditioner comprising:
A first plug-in connector provided at the tip of a first lead wire extending from the electrical component box;
A second plug-in connector that is provided at a tip of a second lead wire extending from an electric component disposed on the decorative panel and is electrically connected to the first plug-in connector;
Further comprising
The first plug-in connector is fixed to the indoor unit main body so that a connection end portion of the first plug-in connector with respect to the second plug-in connector faces the indoor side, and the first plug-in A ceiling-embedded air conditioner characterized in that the connection end portion of the connector can be exposed indoors.   The ceiling-embedded air conditioner according to claim 1, wherein a plurality of the first plug-in connectors are fixed together through a mounting seat.   The ceiling-embedded air conditioner according to claim 1, wherein the first plug-in connector is fixed to the electric component box of the indoor unit main body.   4. The ceiling-embedded air according to claim 3, wherein the decorative panel is formed with an opening that allows the first plug-in connector fixed to the electrical component box to face the indoor side. Harmony machine.   The second lead wire is routed on the indoor unit main body side of the decorative panel, and the first plug-in connector and the second plug-in connector are placed indoors through the opening of the decorative panel. The ceiling-embedded air conditioner according to claim 4, wherein the air conditioner faces the ceiling.   6. The ceiling-embedded air conditioning according to claim 5, wherein only the second lead wire faces the opening of the wiring routed on the indoor unit body side of the decorative panel. Machine.   The ceiling-embedded air conditioner according to claim 4, wherein a lid for closing the opening is detachably attached to the decorative panel.

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