JP2001132981A - Ceiling embedded air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner, of which accuracy of temperature sensing is improved and of which serviceability, the workability of assembling and safety are excellent. SOLUTION: In ceiling embedded air conditioner with a blower and a heat exchanger stored inside a unit body and arranged with a temperature sensor sensing a room temperature in an air trunk on an air intake side, the temperature sensor is arranged to a position that is the highest part of the air trunk on the air inlet side and the outside of the projection of the heat exchanger viewed from the lower surface of the body of the air conditioner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner embedded in a ceiling, and more particularly to an improvement in the accuracy of detecting a room temperature and an improvement in serviceability, assembling workability, and safety. .

[0002]

2. Description of the Related Art FIGS.
It is a figure which shows the structure of the ceiling embedded type air conditioner disclosed by the 5th publication. In the figure, reference numeral 1 denotes a ceiling-mounted air conditioner whose body 2 is hung from a ceiling pocket 3, and is mainly composed of the body 2 and a decorative panel 4. The decorative panel 4 has a suction port 6 to which an air filter 5 is attached on the leeward side and a discharge port 7. An end of the decorative panel 4 is fixed to the body 2 with a screw 8, and an end of the decorative panel 4 is in contact with a ceiling plate 9. Reference numeral 10 denotes a heat exchanger disposed in a substantially U-shape in the body 2, 11 denotes a blower disposed on the leeward side of the heat exchanger 10, and 12 denotes a shape extending over the lower side of the heat exchanger 10. , A reference numeral 13 denotes a board on which the electrical components 14 are arranged, and 15 denotes an electrical box in which the board 13 is stored.

[0003] Reference numeral 16 denotes a sensor fixing device. The temperature sensor 17 is connected to the end of the heat exchanger 10 on the side of the electrical component box 15 and the heat exchanger 1.
It is arranged on the lower surface side of the fuselage 2 on the windward side of zero. Reference numeral 18 denotes a lead wire of the temperature sensor 17, to which a connector 19 is attached, which is detachably connected to a connector provided on the substrate 13.

[0004]

Since the conventional ceiling-mounted air conditioner is constructed as described above, there are the following problems to be solved. (1) When the thermostat is turned off during the cooling operation, the heat exchanger 1
It is easily affected by heat due to the drop of cold air from 0, and it is difficult for the temperature sensor 17 to accurately detect the room temperature. (2) Since the temperature sensor 17 is close to the electrical components, it is affected by the heat of the electrical components 14, and it is difficult for the temperature sensor 17 to accurately detect the room temperature.

[0005] The present invention has been made to solve such a problem, and has improved the accuracy of room temperature detection and improved serviceability.
An object of the present invention is to provide an in-ceiling type air conditioner with good assembling workability and safety.

[0006]

SUMMARY OF THE INVENTION A ceiling-embedded air conditioner according to the present invention accommodates a blower and a heat exchanger in a body, and has a temperature sensor for detecting a room temperature in a suction side air passage. In an embedded air conditioner, a temperature sensor is disposed at the uppermost part of a suction-side air passage at a position that does not enter a projection plane of a heat exchanger when viewed from a lower surface of the airframe.

[0007] Further, a part of the air passage on the suction side in the airframe,
An air path member that forms a blow-side air path is provided, and a temperature sensor take-out hole is provided at a position that does not enter the projection surface of the heat exchanger when viewed from the underside of the air path member, and a lead wire of the temperature sensor is connected to the wind path. The rear surface of the path member is made to crawl so that the temperature sensor is exposed through the temperature sensor take-out hole into the air path on the suction side.

In addition, an electrical component box for storing electrical components is provided at the end of the body, and a temperature sensor is disposed substantially at the center in the longitudinal direction of the heat exchanger.

[0009] Further, a part of the air passage on the suction side in the airframe,
An air path member forming an air outlet side air path is provided, and a temperature sensor is provided at a substantially central portion of the air path member in the longitudinal direction of the heat exchanger and at a position not entering the projection surface of the heat exchanger when viewed from the lower surface of the airframe. A take-out hole is provided, and a lead wire of the temperature sensor is made to creep on the back surface of the air passage member, so that the temperature sensor is exposed from the temperature sensor take-out hole into the air passage on the suction side.

A pair of heat exchangers are arranged in a substantially C-shape when viewed from the side of the fuselage, and are located between the respective heat exchangers so as not to enter the projection surface of the heat exchanger when viewed from the lower surface of the fuselage. Is provided with a temperature sensor.

Further, the heat exchanger is arranged only on one side of a substantially U-shape, and a temperature sensor is provided at a position not entering the projection plane of the heat exchanger when viewed from the lower surface of the machine.

Further, a relay connector is provided near the room temperature detecting portion of the temperature sensor.

Further, the relay connector is disposed so as to be exposed in the suction air passage.

Further, an air path member for forming a part of the suction side air path and the blow side air path is provided in the body, and a relay connector is provided near the room temperature detecting portion of the temperature sensor. In this configuration, a storage box for storing the relay connector is inserted and fixed.

Further, a hinge and a lid which are integrally formed so that the relay connector can be taken in and out from the suction air path side are provided in the storage box.

Further, in a storage box for storing the relay connector of the temperature sensor, a relay lead wire having a length that allows the relay connector to be drawn out toward the air passage is bundled and stored.

Further, a temperature sensor holding portion for holding the room temperature detecting portion of the temperature sensor so as not to move is provided on a lid integrally molded with the storage box.

Further, the temperature sensor holding portion has a protruding shape for rectifying the room air sucked by the blower so as to lick the room temperature detecting portion of the temperature sensor.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. Figure 1
3 is a view showing the first embodiment, FIG. 1 is an exploded perspective view showing the entire component configuration of the ceiling-mounted air conditioner, FIG. 2 is a view showing a Z-Z section in the longitudinal direction of FIG. FIG. 2 is a view showing a Y-Y cross section in the lateral direction of FIG. 1. In the figure, reference numeral 1 denotes a ceiling-mounted air conditioner whose body 2 is hung from a ceiling pocket. Reference numeral 10 denotes a heat exchanger disposed in a substantially U-shape in the body 2, 11 denotes a blower disposed on the leeward side of the heat exchanger 10, and 12 denotes a shape extending over the lower side of the heat exchanger 10. , A substrate 13 on which the electrical components 14 are arranged, and 15 a housing of the substrate 13
Is an electrical component box provided at an end of the electronic component.

An air path member 20 for forming an air path from suction to blowing out of the body 2 of the ceiling-mounted air conditioner 1.
The air passage member 20 is provided with a temperature sensor take-out hole 21 substantially at the center in the longitudinal direction of the heat exchanger 10 and in the middle of each of the heat exchangers 10 arranged in a substantially C-shape. When viewed from the lower surface of the body 2, the temperature sensor takeout hole 21 is provided at a position that does not enter the projection surface of the heat exchanger 10.

The temperature sensor 17 for detecting the room temperature, after the lead wire 18 is made to crawl the side of the body 2 upward,
0 is laid on the back side and is exposed through the temperature sensor take-out hole 21 into the air path on the suction side. The connector 19 is attached to the lead wire 18 on the side opposite to the temperature sensor 17, and the board 1
3 is detachably connected to the connector provided in the connector 3.

When viewed from the lower surface of the fuselage 2, the air passage member 20 is located substantially at the center in the longitudinal direction of the heat exchanger 10 and at the middle of each of the heat exchangers 10 arranged in a substantially C-shape. 10
The temperature sensor take-out hole 21 is provided at a position that does not enter the projection plane, so that the temperature sensor 17 is exposed through the temperature sensor take-out hole 21 into the suction side air passage. And the heat effect due to the descent of cool air from the heat exchanger 10 and, further, since the temperature sensor 17 is away from the electrical component 14,
The temperature sensor 17 can accurately detect the room temperature without being affected by the heat of the room.

A temperature sensor take-out hole 21 is provided substantially at the center of the air passage member 20 in the longitudinal direction of the heat exchanger 10,
Since the temperature sensor 17 is configured to crawl on the back surface of the air path member 20 to expose the sensor section in the air path from the temperature sensor take-out hole 21, the wiring does not hinder the assembling of the ceiling-mounted air conditioner. Excellent workability.

Further, in the present embodiment, the heat exchanger 10 is described as being arranged in a substantially C-shape.
The same effect can be obtained when 0 is one component (one side shown in FIG. 3).

Although the air passage member 20 is provided with the temperature sensor take-out hole 21 substantially at the center of the heat exchanger 10 in the longitudinal direction, if the position does not enter the projection plane of the heat exchanger 10, That is not the case.

Embodiment 2 FIG. Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 4 is a view showing the second embodiment, and is a view showing a ZZ cross section in the longitudinal direction of FIG. As shown in the figure, a relay connector 24 is provided in the vicinity of a room temperature detecting portion of the temperature sensor 17, and the relay connector 24 is arranged in a suction air passage. The temperature sensor 17 is connected to the board 13 with
Is connected to

As described above, since the relay connector 24 is provided near the room temperature detecting portion of the temperature sensor 17 and is connected to the substrate 13 by the relay lead wire 23, the temperature sensor 1
7 can be easily replaced even if a failure occurs.

Further, since the relay connector 24 provided near the room temperature detecting portion of the temperature sensor 17 is arranged so as to be exposed in the air path, even if a failure of the temperature sensor 17 occurs, the relay connector 24 is removed from the suction air path. It can be easily replaced.

Embodiment 3 Hereinafter, a third embodiment of the present invention will be described in detail with reference to the drawings. 5 to 7 are views showing the third embodiment, FIG. 5 is a view showing a ZZ cross section in the longitudinal direction of FIG. 1, FIG. FIG. 7 is a perspective view showing a state in which a lid formed integrally with the storage box shown in FIG. 6 is opened and a temperature sensor is detached. It is. As shown in FIG.
Insert 2. The storage box 22 is fixed so as to be sandwiched between the air path member 20 and the body 2 by a flange 31 formed at an end portion. This contributes to the decomposability during recycling and improves the recyclability.

Reference numeral 25 denotes a lid integrally formed on the storage box 22 and provided via a hinge 26. The lid 25 includes a claw 27 and a fitting hole 28.
At the same time, let me fix it when closed. The lid 25 has a temperature sensor 1
A temperature sensor holding portion 30 for holding the detection portion 7 so as not to move is formed integrally with the protruding portion 29,
The dimension A of the insertion groove of the temperature sensor holder 30 is set smaller than the diameter φB of the lead wire 18.

As described above, the storage box 22 for storing the relay connector 24 of the temperature sensor 17 is inserted into and fixed to the air path member 20 from the back surface. Since no adhesive is used, the cost is not only low. It contributes to decomposability during recycling and improves recyclability.

Also, since the storage box 22 is provided with a hinge 26 and a lid 25 integrally molded so that the relay connector 24 can be taken in and out from the side of the suction air passage, during normal operation, the relay connector 24 is connected to the storage box 22. There is no need to worry about poor contact due to adhesion of dust and dew condensation, and there is no opportunity for the user to touch it.

The relay connector 24 of the temperature sensor 17
In a storage box 22 for storing the relay connector 24, a relay lead wire 23 having a length that allows the relay connector 24 to be sucked and drawn out to the air path side is bundled and stored. Even if a failure of the temperature sensor 17 occurs, It is not a work environment where it is difficult to see, but it is possible to replace it at hand and workability is improved.

Further, since the temperature sensor holding portion 30 for holding the room temperature detecting portion of the temperature sensor 17 so as not to move is provided on the lid 25 integrally formed with the storage box 22,
The temperature sensor 17 can accurately detect the room temperature without changing the allowance of the room temperature detection unit from the storage box 22.

In the temperature sensor holding section 30, the room air sucked by the blower 11 is
Since the room temperature detecting portion 7 is formed in a protruding shape in order to rectify it so as to be licked, the temperature sensor 17 can accurately detect the room temperature.

[0036]

In the ceiling-mounted type air conditioner according to the present invention, the temperature sensor is disposed at the uppermost part of the suction-side air passage at a position which does not enter the projection plane of the heat exchanger when viewed from the lower surface of the airframe. Therefore, at the time of thermo-off during the cooling operation, the temperature sensor can accurately detect the room temperature without being affected by the heat caused by the fall of the cool air from the heat exchanger.

A temperature sensor take-out hole is provided at a position that does not enter the projection surface of the heat exchanger when viewed from the lower surface of the air passage member, and a lead wire of the temperature sensor is routed along the back surface of the air passage member. Is constructed so as to be exposed from the temperature sensor take-out hole into the air passage on the suction side, so that wiring is not obstructed when assembling the ceiling-embedded air conditioner, and the workability is excellent.

Further, an electrical component box for storing electrical components is provided at the end of the airframe, and the temperature sensor is disposed substantially at the center of the heat exchanger in the longitudinal direction, so that the temperature sensor is not affected by the heat of the electrical components. Can accurately detect the room temperature.

Further, a temperature sensor take-out hole is provided substantially at the center of the air passage member in the longitudinal direction of the heat exchanger and at a position not entering the projection surface of the heat exchanger when viewed from the lower surface of the body, and a lead wire of the temperature sensor is provided. The temperature sensor is exposed inside the suction-side air passage through the temperature sensor take-out hole, so that the wiring is not obstructed when assembling the ceiling-mounted air conditioner. Is excellent.

Further, since the relay connector is provided in the vicinity of the room temperature detecting portion of the temperature sensor, even if a failure occurs in the temperature sensor, it can be easily replaced.

Further, since the relay connector is arranged so as to be exposed in the suction air passage, even if a failure of the temperature sensor occurs, it can be easily replaced from the suction air passage.

Further, an air path member for forming a part of the suction side air path and the blow side air path is provided in the airframe, and a relay connector is provided near the room temperature detecting portion of the temperature sensor. Since the storage box that houses the relay connector is configured to be inserted and fixed, no adhesive is used, so that the cost is not only low, but also contributes to the decomposability during recycling and the recyclability is improved.

In addition, since the hinge and the lid are integrally formed in the storage box so that the relay connector can be taken in and out from the side of the suction air passage, the connector is in the storage box during normal operation, so that the dust is not attached. There is no need to worry about poor contact due to dew condensation, and there is no opportunity for the user to touch it, thus improving safety.

Also, since the relay connector is bundled and stored in the storage box for storing the relay connector of the temperature sensor so that the relay connector can be drawn out to the air path side, even if a failure of the temperature sensor occurs, The workability is improved because it is possible to replace at hand instead of the work environment that is difficult to see inside the machine.

Also, since the temperature sensor holding portion for holding the room temperature detecting portion of the temperature sensor so as not to move is provided on the lid integrally formed with the housing box, the allowance of the room temperature detecting portion from the housing box changes. The temperature sensor can accurately detect the room temperature.

Further, since the temperature sensor holding portion is formed in a projecting shape to rectify the room air sucked by the blower so as to lick the room temperature detecting portion of the temperature sensor, the temperature sensor can accurately detect the room temperature.

[Brief description of the drawings]

FIG. 1 is a diagram showing the first embodiment, and is an exploded perspective view showing an overall component configuration of a ceiling-mounted air conditioner.

FIG. 2 is a view showing the first embodiment, and is a ZZ sectional view in the longitudinal direction of FIG. 1;

FIG. 3 is a view showing the first embodiment, and is a YY cross-sectional view in the short direction of FIG. 1;

FIG. 4 is a view showing the second embodiment, and is a ZZ cross-sectional view in the longitudinal direction of FIG. 1;

FIG. 5 is a view showing the third embodiment, and is a ZZ cross-sectional view in the longitudinal direction of FIG. 1;

FIG. 6 is a view showing the third embodiment, and is an enlarged perspective view around the storage box of FIG. 5;

FIG. 7 is a view showing the third embodiment, and is a perspective view showing a state in which a lid integrally formed with the storage box of FIG. 6 is opened and a temperature sensor is detached.

FIG. 8 is a longitudinal sectional view of a conventional ceiling-mounted air conditioner.

FIG. 9 is a cross-sectional view in the lateral direction of a conventional ceiling-mounted air conditioner.

[Explanation of symbols]

1 ceiling embedded type air conditioner, 2 fuselage, 10 heat exchanger, 11 blower, 12 drain pan, 13 substrate, 14
Electrical parts, 15 Electrical parts box, 17 Temperature sensor, 18
Lead wire, 19 connector, 20 air path member, 21
Temperature sensor take-out hole, 22 storage box, 23 relay lead wire, 24 relay connector, 25 lid, 26 hinge,
27 claw, 28 fitting hole, 29 projecting shape part, 30
Temperature sensor holder, 31 flange.

Claims (13)

[Claims] Claims: 1. A blower and a heat exchanger are housed in an airframe,
In the ceiling-mounted air conditioner provided with a temperature sensor for detecting a room temperature in a suction-side air passage, the heat exchanger when the temperature sensor is viewed from the lower surface of the airframe at an uppermost portion of the suction-side air passage. A ceiling-mounted air conditioner, wherein the air conditioner is arranged so as not to enter the projection plane of the ceiling. 2. An air path member forming a part of a suction-side air path and a blow-out side air path is provided in a body, and when viewed from a lower surface of the body of the air path member, the air path member enters a projection surface of a heat exchanger. A temperature sensor lead-out hole is provided at a position where no temperature sensor lead-out hole is provided, and a lead wire of the temperature sensor is routed along the back surface of the air passage member so that the temperature sensor is exposed from the temperature sensor lead-out hole into the suction-side air passage. The ceiling-mounted air conditioner according to claim 1, wherein 3. An electronic component box for storing electrical components is provided at an end of the body of the machine, and the temperature sensor is arranged at a substantially central portion in a longitudinal direction of the heat exchanger. The ceiling-mounted air conditioner described. 4. An air path member for forming a part of a suction-side air path and a blow-off-side air path is provided in a body, and a substantially central portion of the heat path member in a longitudinal direction of a heat exchanger and a lower surface of the body. When viewed from above, a temperature sensor take-out hole is provided at a position that does not enter the projection surface of the heat exchanger, and the lead wire of the temperature sensor runs along the back surface of the air path member. 4. The ceiling-mounted air conditioner according to claim 3, wherein the air conditioner is configured to be exposed inside. 5. A pair of heat exchangers are arranged in a substantially C-shape when viewed from the side of the fuselage, and are located between the respective heat exchangers and do not enter the projection surface of the heat exchanger when viewed from the lower surface of the fuselage. The ceiling-mounted air conditioner according to claim 1, further comprising a temperature sensor. 6. The heat exchanger according to claim 1, wherein the heat exchanger is disposed only on one side of the substantially U-shape, and a temperature sensor is provided at a position that does not enter the projection surface of the heat exchanger when viewed from the lower surface of the body. 1. The ceiling-mounted air conditioner according to 1. 7. The ceiling-mounted air conditioner according to claim 1, wherein a relay connector is provided near a room temperature detecting portion of the temperature sensor. 8. The air conditioner embedded in a ceiling according to claim 7, wherein the relay connector is arranged so as to be exposed in the suction air passage. 9. An air path member for forming a part of a suction side air path and a blow side air path is provided in a body, a relay connector is provided near a room temperature detecting portion of a temperature sensor, and a back surface is provided on the air path member. 2. The ceiling-mounted air conditioner according to claim 1, wherein a storage box for storing the relay connector is inserted and fixed. 10. The air conditioner according to claim 9, wherein the storage box is provided with a hinge and a lid integrally formed so that the relay connector can be taken in and out from the side of the suction air passage. 11. The ceiling-mounted type according to claim 9, wherein a relay lead wire having a length that allows the relay connector to be drawn out to the air path side is bundled and stored in a storage box that stores the relay connector of the temperature sensor. Air conditioner. 12. The ceiling-embedded air according to claim 10, wherein a temperature sensor holding portion for holding a room temperature detecting portion of the temperature sensor so as not to move is provided on a lid integrally formed with the storage box. Harmony machine. 13. The embedded ceiling according to claim 12, wherein the temperature sensor holding portion has a protruding shape for rectifying the room air sucked by the blower so as to lick the room temperature detecting portion of the temperature sensor. Type air conditioner.