air conditioning device

Abstract

Air conditioning device (1) comprising a heat source detection unit (20) provided on a front of a housing, wherein the heat source detection unit (20) comprises: an infrared sensor (33) designed to detect a heat source in an air-conditioned room, a mounting element (40) that carries the infrared sensor (33), and a cover element (50) that accommodates the infrared sensor (33) and the mounting element (40), wherein the cover element (50) is made of a material that does not allow infrared rays to pass through, wherein the cover element (50) has an opening (56), wherein the retaining element (40) and the cover element (50) are designed such that they can be rotated about an axis extending in a vertical direction, and wherein the infrared sensor (33) is configured, together with the mounting element (40), to be rotated about the axis extending in the vertical direction between a reference position in which the infrared sensor (33) faces the front of the air conditioning device (1) and a rotation stop position in which the infrared sensor (33) does not face the front of the air conditioning device (1), when the infrared sensor (33) is rotated in a first direction, which is a direction from the reference position towards the rotation stop position, and the infrared sensor (33) is facing the air-conditioned room, and when the infrared sensor (33) is rotated in a second direction, which is a direction from the rotation stop position towards the reference position and which is the opposite direction to the first direction, and the infrared sensor (33) is facing the air-conditioned room, the mounting element (40) and the cover element (50) are rotated, wherein the infrared sensor (33) is arranged so that it faces the opening (56), and when the cover element (50) is rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the air-conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, and when the cover element (50) is rotated in the second direction towards the rotation stop position after it has been rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the air-conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, until the cover element (50) reaches the rotation stop position.

Description

Technical field

[0001] The present disclosure relates to an air conditioning device equipped with a sensor that detects a heat source. Technological background

[0002] In the past, air conditioning devices were known to be equipped with a sensor that detects a heat source in an air-conditioned room. For example, an air conditioning device described in JP 2017-044439A is equipped with an infrared sensor located on the front of the device's housing and uses the infrared sensor to detect the temperature of a human body, which represents a heat source, as well as the temperatures of, for example, a floor surface and a wall surface in a room.

[0003] Documents JP 2012 - 037 129 A and DE 693 17 606 T2 each disclose an indoor unit of an air conditioning device with a movable sensor. Brief description of the invention: Technical problem

[0004] In recent years, it has become necessary to detect not only the position and temperature of a heat source, but also airflow to achieve climate control and improved comfort. Within an airflow, temperature changes are very small. Therefore, to detect airflow, a high-precision, high-resolution sensor is required—specifically, an infrared sensor, which is highly sensitive compared to existing sensors. However, some types of infrared sensors generate heat themselves. With these types, the heat generated by the sensor can interfere with the temperature measurement of an air-conditioned room. Therefore, when using such a highly sensitive infrared sensor, it is essential to take the sensor's heat generation into account when measuring the temperature of an air-conditioned room.

[0005] The present disclosure is used to solve the above problem and relates to an air conditioning device in which the versatility of temperature sensing is improved so that the sensing can be carried out using the properties of a sensor that detects the temperature of a heat source in an air-conditioned room. Solution to the problem

[0006] The above problem is solved by combining the features of independent claim 1. Preferred embodiments are found in the dependent claims.

[0007] An air conditioning device comprises a heat source detection unit provided on the front of an enclosure. The heat source detection unit includes an infrared sensor that detects a heat source in an air-conditioned room and a mounting element that supports the infrared sensor. The mounting element is designed to be rotatable about an axis extending vertically. A portion of the infrared sensor corresponding to its field of view is exposed when the infrared sensor is facing / opposite the air-conditioned room, and the portion of the infrared sensor is obscured when the infrared sensor is not facing / opposite the air-conditioned room. Advantageous effects of the invention

[0008] The air conditioning device according to the embodiment of the present disclosure is capable of detecting the temperature of the heat source in the air-conditioned room when the portion of the infrared sensor corresponding to its field of view is exposed, and it is capable of detecting the temperature of heat generated by the infrared sensor itself when the aforementioned portion of the infrared sensor is obscured. Thus, the temperature detected when the aforementioned portion of the infrared sensor is exposed can be compensated for based on the temperature detected when the aforementioned portion of the infrared sensor is obscured. This means that even when using an infrared sensor that generates heat from within the sensor itself, it is possible to perform the detection using such sensor characteristics.Thus, the air conditioning device according to the present disclosure can be improved with regard to the versatility of temperature sensing. Brief description of the drawings Fig. Figure 1 is a perspective view of part of an air conditioning device according to embodiment 1. Fig. Figure 2 is a sectional view of the air conditioning device according to embodiment 1. Fig. Figure 3 is a perspective exploded view of a heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 4 is an enlarged perspective view of an upper mounting frame of a mounting element of the heat source detection unit. Fig. Figure 5 is an enlarged perspective view of a lower mounting frame of the heat source detection unit's mounting element. Fig. Figure 6 is an enlarged perspective view of a first gear element of the heat source detection unit. Fig. Figure 7 is an enlarged perspective view of a cover element of the heat source detection unit. Fig. Figure 8 is an enlarged perspective view of a coupling element of the heat source detection unit. Fig. Figure 9 is a schematic view showing the viewing angle of an infrared sensor of the air conditioning device according to embodiment 1. Fig. Figure 10 is a sectional view of a sensor carrier body and a cover assembly of the heat source detection unit according to embodiment 1. Fig. Figure 11 is a sectional view of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 12 is a section view along line DD in Fig. 10. Fig. Figure 13 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit according to embodiment 1. Fig. Figure 14 is a top view of the configuration of an upper part of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 15 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 16 is a top view of the configuration of the upper part of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 17 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 18 shows the displacement of the infrared sensor of the heat source detection unit caused by the rotation of a motor. Fig. Figure 19 shows the displacement of the infrared sensor of the heat source detection unit caused by the rotation of the motor. Fig. Figure 20 shows the displacement of the infrared sensor of the heat source detection unit caused by the rotation of the motor. Fig. Figure 21 is a diagram that conceptually shows a relative positional relationship between an upper base, the coupling element and the first gear element. Fig. Figure 22 is another diagram that conceptually shows the relative positional relationship between the upper base, the coupling element and the first gear element. Fig. Figure 23 is another diagram that conceptually shows the relative positional relationship between the upper base, the coupling element and the first gear element. Fig. Figure 24 is another diagram that conceptually shows the relative positional relationship between the upper base, the coupling element and the first gear element. Fig. Figure 25 is a functional block diagram of the air conditioning device according to embodiment 1. Fig. Figure 26 is an enlarged view of part of the front of an air conditioning device according to embodiment 2. Fig. Figure 27 is a perspective view of a cover part of the air conditioning device according to embodiment 2 seen from below. Description of the embodiments

[0009] Embodiments of an air conditioning device according to the present disclosure are described with reference to the drawings. The descriptions of the embodiments are not limiting, and various modifications may be made without departing from the core of the present disclosure. Furthermore, the present disclosure covers all combinations of configurations that can be combined with respect to the configurations described in relation to the embodiments. Moreover, an air conditioning device such as that shown in the accompanying figures is merely an example of a device to which the air conditioning device according to the present disclosure is applied.For ease of understanding, the descriptions of the embodiments use directional terms (such as "top," "bottom," "right," "left," "front," and "back") as appropriate; however, these terms are used for explanatory purposes only and do not restrict the embodiments. In each of the figures, components that are identical or corresponding to those in one or more preceding figures are marked with the same reference numerals, and the same applies throughout the description. It should be noted that, for example, the relative sizes of the components or the shapes of the components may differ from the actual figures. Design 1

[0010] Fig. Figure 1 is a perspective view of part of an air conditioning device according to embodiment 1. Fig. Figure 2 is a sectional view of the air conditioning device according to embodiment 1. Fig. Figure 1 shows a front part and a right side part of an air conditioning device 1, viewed from the front of the air conditioning device 1. Fig. Figure 2 is a sectional view of the air conditioning device 1, taken along a centerline of a central section of the air conditioning device 1 in a lateral direction, viewed from the right side of the air conditioning device 1. The left side of Fig. 2 is the front of the air conditioning unit 1, and the right side of Fig. 2 is the back of the air conditioning device 1. The air conditioning device 1 is an indoor unit that, using a refrigeration circuit through which refrigerant circulates, supplies air subject to air conditioning control into an air-conditioned space, such as an indoor space.

[0011] The air conditioning device 1 comprises a rear housing 10 and a decorative panel 11 at the front. An air inlet 12 is formed on the top of the air conditioning device 1. An air outlet 13 is formed between the rear housing 10 and the decorative panel 11. A heat exchanger 14, a fan 15, and an electrical assembly 16 are provided in the rear housing 10. A drip tray 17 is also provided below the heat exchanger 14 to collect condensate from the heat exchanger 14. An air direction adjustment plate 18 is provided at the air outlet 13.

[0012] When the fan 15 is driven, room air is drawn in through the air inlet 12. The drawn-in air exchanges heat with the refrigerant in the heat exchanger 14 and is converted into cold or warm air. The wind direction adjustment plate 18 determines the direction in which the cold or warm air is to be blown out, and the cold or warm air is blown into the interior space through the air outlet 13.

[0013] As in Fig. As shown in Figure 1, a heat source detection unit 20 is provided at a right end section of the front of the air conditioning device 1. The heat source detection unit 20 detects the temperature of a heat source in an interior space, which is an air-conditioned room. The heat source detection unit 20 is arranged above the wind direction adjustment plate 18. Thus, cold or warm air blown out of the air outlet 13 does not directly strike the heat source detection unit 20.

[0014] Fig. Figure 3 is a perspective exploded view of the heat source detection unit of the air conditioning device according to embodiment 1. As shown in Fig. As shown in Figure 3, the heat source detection unit 20 comprises an upper base 21, a lower base 22, a sensor support body 201, and a cover assembly 202. The sensor support body 201 comprises a sensor part 30 and a mounting element 40. The cover assembly 202 comprises a first gear element 70 and a cover element 50. The heat source detection unit 20 further comprises a motor 60, a second gear element 80, and a coupling element 90.

[0015] The lower base 22 is positioned below the upper base 21, and the upper base 21 and the lower base 22 are fastened together by means of a screw 24. The motor 60 is arranged such that one motor shaft 61 points downwards. The motor 60 is fastened to a top surface of the upper base 21 by screws 25.

[0016] The sensor component 30 comprises a sensor substrate 31 and a substrate holder 32. An infrared sensor 33 is mounted on the sensor substrate 31. The infrared sensor 33 is a high-precision, high-resolution infrared sensor. This infrared sensor itself generates heat. That is, the infrared sensor 33 is an infrared sensor that detects this self-heating. The sensor substrate 31 is supported by the substrate holder 32.

[0017] The mounting element 40 comprises an upper mounting frame 41 with a hollow cylindrical shape and a lower mounting frame 42 with a hollow cylindrical shape. The lower mounting frame 42 is attached to a lower section of the upper mounting frame 41. The inner diameter of the lower mounting frame 42 is essentially equal to the outer diameter of the upper mounting frame 41. Therefore, an upper end face of the lower mounting frame 42 is located outside the upper mounting frame 41.

[0018] Fig. Figure 4 is an enlarged perspective view of the upper mounting frame of the heat source detection unit's mounting element. Fig. Figure 5 is an enlarged perspective view of the lower mounting frame of the heat source detection unit's bracket. As shown in Fig. As shown in Figure 4, slots 41A and 41B are formed in an upper section of the upper mounting frame 41. Fig. As shown in Figure 5, a window 42A is formed in a lower section of the lower mounting frame 42. A projection 42B is provided on the underside of the lower mounting frame 42, extending downwards. The lower mounting frame 42 is made of a material that allows infrared radiation to pass through. The aforementioned sensor part 30 is held in the mounting element 40 such that the infrared sensor 33 is positioned on the sensor carrier 31 facing the window 42A.

[0019] Fig. Figure 6 is an enlarged perspective view of the first gear element of the heat source detection unit. The first gear element 70 comprises a hollow cylindrical section 71, a gear section 72, a flange 73, a straight projection 74, a rectangular projection 75, and a meshing section 76.

[0020] The gear section 72 is provided around the entire outer circumference of the hollow cylindrical section 71 in its circumferential direction. The flange 73 is provided on the outer circumference of the hollow cylindrical section 71 and is located below the gear section 72.

[0021] The straight projection 74 and the rectangular projection 75 are arranged on the outer circumference of the hollow cylindrical section 71 and below the flange 73. The straight projection 74 has a vertically elongated shape. The rectangular projection 75 has a substantially rectangular shape. The straight projection 74 and the rectangular projection 75 are located close together in the circumferential direction of the hollow cylindrical section 71. Opposite the straight projection 74 with respect to the axis of the hollow cylindrical section 71, a straight projection with a vertically elongated shape similar to that of the straight projection 74 is provided. Opposite the rectangular projection 75 with respect to the axis of the hollow cylindrical section 71, a rectangular projection with a substantially rectangular shape similar to that of the rectangular projection 75 is provided.

[0022] The engagement section 76 is provided on an inner surface of the hollow cylindrical section 71. The engagement section 76 is designed as a wall that projects in the direction of the axis of the hollow cylindrical section 71. A first inclined surface 76A is formed on an upper end face of the engagement section 76 such that it is inclined downwards or upwards in the circumferential direction. An engagement section similar to the engagement section 76 is provided opposite the engagement section 76 with respect to the axis of the hollow cylindrical section 71.

[0023] Fig. Figure 7 is an enlarged perspective view of the cover element of the heat source detection unit. The cover element 50 is made of a material that does not transmit infrared radiation. The cover element 50 has a hollow cylindrical shape and a bottom surface 51. In an upper section of the cover element 50, access slots 52 and 53 as well as access holes 54 and 55 are formed. In a lower section of the cover element 50, an opening 56 is formed. A hollow receiving section 57 is provided on the bottom surface 51 and is located at the point where the axis of the cover element 50 intersects the bottom surface 51.

[0024] The first gear element 70 is attached to the upper section of the cover element 50. The straight projection 74 of the first gear element 70 engages with the engagement slot 52 of the cover element 50. The aforementioned projection, which is formed on the first gear element 70 and is located opposite the straight projection 74 with respect to the axis of the hollow cylindrical section 71, engages with the engagement slot 53. The rectangular projection 75 of the first gear element 70 engages with the engagement hole 54 of the cover element 50. The aforementioned projection, which is formed on the first gear element 70 and is located opposite the rectangular projection 75 with respect to the axis of the hollow cylindrical section 71, engages with the engagement hole 55. Due to the above configuration, the cover element 50 is synchronized with the Fig. The motor 60 shown in Figure 3 rotates when a rotational force is applied to the first gear element 70 in a direction around its axis.

[0025] Fig. Figure 8 is an enlarged perspective view of the coupling element of the heat source detection unit. The coupling element 90 has a hollow cylindrical shape. A stopper 91 is attached to an upper end face of the coupling element 90 such that it projects upwards. At least part of a lower section of the coupling element 90 is cut out circumferentially. That is, a second inclined surface 90A is formed on a lower end face of the coupling element 90 such that it is inclined circumferentially downwards or upwards. Another second inclined surface 90A, similar to the aforementioned second inclined surface 90A, is formed relative to the axis of the coupling element 90 and opposite the aforementioned second inclined surface 90A. Straight projections 92 and 93 are provided on an inner surface of the coupling element 90.Each of the straight projections 92 and 93 has an elongated shape extending vertically. The stopper 91 and the straight projection 92 are formed integrally. Furthermore, a rotation-limiting projection 94 is provided on the lower section of the coupling element 90 to restrict the rotation of the first gear element 70. The rotation-limiting projection 94 is described below.

[0026] Referring to Fig. 3. The outer diameter of the upper mounting frame 41 of the retaining element 40 is smaller than the inner diameter of the hollow cylindrical section 71 of the first gear element 70, and the upper mounting frame 41 is inserted into the hollow cylindrical section 71 from below. The outer diameter of the coupling element 90 is smaller than the inner diameter of the hollow cylindrical section 71 of the first gear element 70, and the coupling element 90 is inserted into the hollow cylindrical section 71 from above.

[0027] The sensor carrier body 201, the cover assembly 202 and the coupling element 90 are provided on a first mounting section 22A of the lower base 22, wherein the aforementioned parts of the sensor carrier body 201, the cover assembly 202 and the coupling element 90 are attached as described above.

[0028] In embodiment 1, the first gear element 70, the second gear element 80 and the coupling element 90 each serve as a transmission unit that transmits a rotary movement of the motor 60. <Sichtwinkel des Infrarotsensors und Öffnung des Abdeckelements>

[0029] Fig. Figure 9 is a schematic view showing a viewing angle of the infrared sensor of the air conditioning device according to embodiment 1. Fig. Figure 9 is a schematic view that conceptually shows a positional relationship between the lower mounting frame 42 of the mounting element 40, the sensor carrier 31 of the sensor part 30 and the cover element 50. Fig. Figure 9 shows how the infrared sensor 33 is positioned on the sensor carrier 31 so that it faces the opening 56 of the cover element 50. Fig. 9 (a) is a front view of the cover element 50; Fig. 9 (b) is a sectional view along line AA of Fig. 9 (a); and Fig. 9 (c) is a sectional view along line BB of Fig. 9 (a). The infrared sensor 33 has a viewing angle between the dash-dot-dash line L1 and the dash-dot-dash line L2 in the vertical direction, as shown in Fig. 9 (b) specified. The infrared sensor 33 has a viewing angle between the dash-dot-dash line L3 and the dash-dot-dash line L4 in the lateral direction as shown in Fig. 9 (c) specified. The opening 56 of the cover element 50 is designed such that the cover element 50 does not obscure a part of the infrared sensor 33 corresponding to the viewing angles of the infrared sensor 33 in the lateral and vertical directions. <Sensor-Tragekörper und Abdeckungsbaugruppe>

[0030] Fig. Figure 10 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit according to embodiment 1. More precisely, Fig. 10 a sectional view along a plane which runs parallel to the lateral direction of the air conditioning device 1 and which includes the axis of the cover element 50 of the cover assembly 202, and shows the sensor support body 201, the cover assembly 202 and the coupling element 90 of the heat source detection unit 20, viewed in the direction towards the front of the air conditioning device 1.

[0031] The first gear element 70 is attached to an upper end face of the cover element 50. As described above, the Fig. 6 shown straight projection 74 of the first gear element 70 in the in Fig. The access slot 53 of the cover element 50 shown in Figure 7 is fitted, and the one in Fig. The rectangular projection 75 of the first gear element 70, as shown in section 6, is inserted into the... Fig. The engagement hole 54 of the cover element 50, as shown in Figure 7, is fitted into the motor. Thus, a rotary motion of the motor 60, which is transmitted via the second gear element 80 to the first gear element 70, is transmitted to the cover element 50. That is, when the motor 60 is rotated, the first gear element 70 and the cover element 50 are also rotated.

[0032] The outer diameter of the lower mounting frame 42 of the retaining element 40 is smaller than the inner diameter of the cover element 50, and the lower mounting frame 42 is inserted into the cover element 50 from above. The projection 42B of the lower mounting frame 42 is inserted into the receiving section 57 of the underside 51 of the cover element 50, so that the projection 42B can slide about the axis of the retaining element 40. That is, the retaining element 40 can be rotated independently of the first gear element 70 and the cover element 50.

[0033] The coupling element 90 is arranged between the upper mounting frame 41 of the support element 40 and the first gear element 70. A flange 90B is provided at an upper end section of the coupling element 90 such that it extends in the direction of the axis of the coupling element 90. The flange 90B extends circumferentially over the entire circumference of the coupling element 90. The flange 90B of the coupling element 90 is in contact with an upper end face of the upper mounting frame 41, and the coupling element 90 is supported by the upper mounting frame 41. <Montage von zweitem Getriebeelement und Abdeckungsbaugruppe>

[0034] Fig. Figure 11 is a sectional view of the heat source detection unit of the air conditioning device according to embodiment 1. More precisely, it is Fig. 11 a sectional view of the heat source detection unit 20, which runs along line CC from Fig. 14 is recorded, viewed in a direction that is in Fig. Figure 14, which will be referenced later, is indicated by arrows. The second gear element 80 comprises an upper bearing 81, a lower bearing 82, and a gear section 83. The upper bearing 81 extends upward along the axis of the second gear element 80. The lower bearing 82 extends downward along the axis of the second gear element 80. The upper bearing 81 is coaxial with the lower bearing 82. The second gear element 80 is provided on a second mounting section 22B of the lower base 22. A projection 22C is formed on the bottom surface of the second mounting section 22B. The lower bearing 82 is mounted on the projection 22C such that the lower bearing 82 can be rotated about the axis of the projection 22C. The motor shaft 61 of the motor 60 is inserted into the upper bearing 81 of the second gear element 80. The upper bearing 81 has a rectangular cross-section.Therefore, when motor 60 is rotated, the second gear element 80 rotates synchronously with motor 60.

[0035] A hollow sleeve 23 is provided on the underside of the first mounting section 22A of the lower base 22 and extends downwards. The cover assembly 202 is provided on the first mounting section 22A of the lower base 22. The cover assembly 202 is inserted into the sleeve 23. A lower section of the cover assembly 202 is exposed on a lower section of the sleeve 23. A lower end face of the flange 73 of the first gear element 70 is in contact with an upper end face of the sleeve 23, and the first gear element 70 is mounted on the sleeve 23. That is, the cover assembly 202 is fixed to the lower base 22, and the downward movement of the cover assembly 202 is restricted.

[0036] The gear section 72 of the first gear element 70 of the cover assembly 202 comes with the gear section 83 (see Fig. 3) the second gear element 80 engages. When the motor 60 is rotated, the rotational force of the motor 60 is transmitted via the second gear element 80 to the first gear element 70. <Eingriff zwischen Kopplungselement und oberem Befestigungsrahmen>

[0037] Fig. Figure 12 is a sectional view along line DD from Fig. 10. As described above, the coupling element 90 is attached to the upper part of the upper mounting frame 41. The straight projection 92 of the coupling element 90 engages with the slot 41A of the upper mounting frame 41, and the straight projection 93 of the coupling element 90 engages with the slot 41B of the upper mounting frame 41. Thus, the coupling element 90 and the upper mounting frame 41 rotate synchronously about the axis. Furthermore, in the mounting element 40, the lower mounting frame 42 is attached to the upper mounting frame 41, as described above. Therefore, when the coupling element 90 is rotated, the entire mounting element 40 rotates together with the coupling element 90. <Eingriff zwischen erstem Getriebeelement und Kopplungselement>

[0038] Fig. Figure 13 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit according to embodiment 1. More precisely, Fig. 13, as well as Fig. Figure 10 shows a sectional view along a plane parallel to the lateral direction of the air conditioning device 1 and encompassing the axis of the cover element 50 of the cover assembly 202, and shows the sensor support body 201, the cover assembly 202 and the coupling element 90 of the heat source detection unit 20, viewed in the direction towards the front of the air conditioning device 1. Fig. The retaining element 40 is not shown in Figure 13. The engagement between the first gear element 70 and the coupling element 90 is described with reference to Fig. 13 described.

[0039] As above with reference to Fig. As described in Figure 6, the engagement section 76 with a wall shape is provided on the inner surface of the hollow cylindrical section 71 of the first gear element 70, and the aforementioned first inclined surface 76A is formed on the upper end face of the engagement section. That is, the engagement section 76 has a substantially trapezoidal shape in front view. It should be noted that there is also a further engagement section 76, which corresponds to the one described in Figure 6. Fig. The intervention section 76 shown in 13 is similar to that in Fig. The engagement section 76 shown in 13 is provided opposite the axis of the first gear element 70.

[0040] As above with reference to Fig. As described in Figure 8, the second inclined surface 90A is formed on the lower end face of the coupling element 90. It is noted that one of the second inclined surfaces 90A, as described in Figure 8, is formed on the lower end face of the coupling element 90. Fig. As shown in Figure 13, a similar inclined surface is also formed opposite the second inclined surface 90A with respect to the axis of the coupling element 90.

[0041] The first inclined surface 76A of the engagement section 76 of the first gear element 70 and the second inclined surface 90A of the lower section of the coupling element 90 are shaped such that they are inclined in the same direction and at the same angle. The first inclined surface 76A and the second inclined surface 90A are in contact with each other. In addition to the in Fig. The inclined surfaces shown in Figure 13 are also an inclined surface of the engagement section of the first gear element 70, located opposite the engagement section 76, and the inclined surface of the coupling element 90, located opposite the second inclined surface 90A, shaped such that they are inclined in the same direction and at the same angle and are in contact with each other. Thus, when the first gear element 70 is rotated, the second inclined surface 90A and the first inclined surface 76A are held in contact with each other, and the first gear element 70 and the coupling element 90 rotate synchronously with each other, provided the rotation of the coupling element 90 is not impeded. Conversely, even if the first gear element 70 is rotated and the rotation of the coupling element 90 is impeded, the second inclined surface 90A and the first inclined surface 76A are disengaged from their contact state. As shown in Figure 13, the first gear element 70 is held in contact with each other. Fig. As shown in Figure 11, the flange 73 of the first gear element 70 is mounted on the first mounting section 22A of the lower base 22, and downward displacement of the cover assembly 202 is restricted as described above. Therefore, when the rotation of the coupling element 90 is stopped and the second inclined surface 90A and the first inclined surface 76A are separated from each other, the second inclined surface 90A slides diagonally upward relative to the first inclined surface 76A. As a result, the coupling element 90 moves upward. That is, the rotational force exerted on the coupling element 90 is converted into a tension that moves the coupling element 90 upward.

[0042] Fig. Figure 14 is a top view of an upper part of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 14 shows a state in which the infrared sensor 33 faces the front of the air conditioning device 1. A stopper receiving section 21B is provided on the upper base 21 such that it projects towards the center of the first mounting section 22A of the lower base 22. The stopper receiving section 21B is located at a right end section of the air conditioning device 1 and closer to the rear of the air conditioning device 1 than to its front. The coupling element 90 is positioned such that the stopper 91 faces the front of the air conditioning device 1 when the infrared sensor 33 is positioned to face the front of the air conditioning device 1.

[0043] In embodiment 1, the cover element 50, the sensor carrier body 201, and the coupling element 90 are arranged such that they are positioned as described below when the infrared sensor 33 faces the front of the air conditioning device 1. It should be noted that in the following description, the position of the infrared sensor 33, in which the infrared sensor 33 faces the front of the air conditioning device 1, is referred to as the reference position of the infrared sensor 33. When the infrared sensor 33 is in the reference position, the Fig. The cover element 50 shown in Figure 7 is positioned such that the opening 56 faces the front of the air conditioning device 1. Thus, when the infrared sensor 33 is in the reference position, it can detect a heat source in the air-conditioned room through the opening 56 of the cover element 50. Furthermore, the cover element 50 and the coupling element 90 are positioned such that, when the infrared sensor 33 is in the reference position, the first inclined surface 76A of the engagement section 76 of the hollow cylindrical section 71 of the first gear element 70 and the second inclined surface 90A of the coupling element 90 are in contact with each other, as shown in Figure 7. Fig. Figure 13 shows that, in addition, the coupling element 90 is positioned such that, when the infrared sensor 33 is in the reference position, the stopper 91 of the coupling element 90 is located closer to the front of the air conditioning device 1 than to its rear, as shown in Figure 1. Fig. 14 is shown, and is also located away from the stopper receiving section 21B of the upper base 21. Thus, when the rotary motion of the motor 60 is transmitted via the second gear element 80 and the first gear element 70 to the cover element 50, and the cover element 50 is rotated, the coupling element 90 is rotated together with the cover element 50.

[0044] Fig. Figure 15 is a sectional view of the sensor carrier body and the cover assembly of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 15 shows a state in which the infrared sensor 33 faces the right side of the air conditioning device 1. In the following description, a direction in which the infrared sensor 33 is rotated from a position in which the infrared sensor 33 faces the front of the air conditioning device 1 to a position in which the infrared sensor 33 faces the right side of the air conditioning device 1 is referred to as a first direction; and a direction in which the infrared sensor 33 is rotated from the position in which the infrared sensor 33 faces the right side of the air conditioning device 1 to a position in which the infrared sensor 33 faces the front of the air conditioning device 1, and a direction in which the infrared sensor 33 is rotated from the position in which the infrared sensor 33 faces the front of the air conditioning device 1 to a positionThe direction in which the infrared sensor 33 faces the left side of the air conditioning device 1 is referred to as a second direction. That is, when the heat source detection unit 20 is viewed from the side where the upper base 21 is located, the first direction is counterclockwise, and the second direction is clockwise. When the second gear element 80 is rotated in the second direction by the rotation of the motor 60, the first gear element 70 and the cover element 50 are rotated in the first direction, and the opening 56 of the cover element 50 is rotated toward the right side of the air conditioning device 1.

[0045] At this point, as described above, the coupling element 90 is rotated together with the cover element 50, and the mounting element 40 with the upper mounting frame 41, to which the coupling element 90 is attached, is thus also rotated synchronously with the cover element 50. That is, the mounting element 40 and the cover element 50 are rotated in the first direction, with the infrared sensor 33 positioned so that it faces the opening 56 of the cover element 50. Then, as described in Fig. Figure 15 shows the opening 56 of the cover element 50 and the infrared sensor 33 positioned so that they face the right side of the air conditioning device 1.

[0046] Fig. Figure 16 is a top view of a configuration of the upper part of the heat source detection unit of the air conditioning device according to embodiment 1. Fig. Figure 17 is a sectional view of the sensor support body and the cover assembly of the heat source detection unit of the air conditioning device according to embodiment 1. Starting from the one shown in Fig. In the state shown in Figure 14, when the first gear element 70 and the mounting element 40 are rotated in the first direction, the stopper 91 of the coupling element 90 is brought into contact with the stopper receiving section 21B of the upper base 21, as shown in Figure 14. Fig. Figure 16 shows that if the first gear element 70 is rotated further in this state, the cover element 50, together with the first gear element 70, is rotated further in the first direction. In contrast, the rotation of the coupling element 90 in the first direction is limited by the stopper receiving section 21B. If, in this state, the rotational force in the first direction is applied to the coupling element 90, the second inclined surface 90A of the coupling element 90 and the first inclined surface 76A of the engagement section 76 of the hollow cylindrical section 71 of the first gear element 70 are displaced from their positions. Fig. The contact state shown in Figure 13 is separated from each other. Then the second inclined surface 90A slides relative to the first inclined surface 76A, and the coupling element 90 is moved upwards. This means that the coupling element 90 and the first gear element 70 are disengaged from their engaged state, in which the coupling element 90 and the first gear element 70 are engaged with each other and which is maintained by the contact between the second inclined surface 90A and the first inclined surface 76A. Thus, only the first gear element 70 and the cover element 50 of the cover assembly 202 are rotated, and rotation of the sensor part 30 and the mounting element 40 of the sensor carrier body 201 is stopped. As a result, the infrared sensor 33, as shown in Figure 13, is disengaged from the first gear element 70A. Fig. 17 shown, positioned so that it faces a hollow cylindrical section of the cover element 50 in which the opening 56 is not formed.

[0047] Fig. 18, Fig. 19 to Fig. Figure 20 shows the displacement of the infrared sensor of the heat source detection unit caused by the rotation of the motor. In each of the Fig. 18, Fig. 19 to Fig. Figure 20 is shown in (a) the heat source detection unit 20 viewed towards the front of the air conditioning device 1 and in (b) the heat source detection unit 20 viewed towards the underside of the lower base 22. In each of the Fig. 18, Fig. 19 to Fig. 20 is the angle between the dot-and-dash line L3 and the dot-and-dash line L4, the viewing angle of the infrared sensor 33, as shown in Fig. 9 shown. Fig. 21, Fig. 22, Fig. 23 to Fig. Figure 24 are schematic views, each conceptually illustrating a relative positional relationship between the upper base, the coupling element, and the first gear element. Each of the Fig. 21, Fig. 22, Fig. 23 to Fig. Figure 24 represents a lower surface of the upper base 21, the coupling element 90, and the inner surface of the first gear element 70 such that the lower surface of the upper base 21, the coupling element 90, and the inner surface of the first gear element 70 are arranged in one plane. Here, the movement of the infrared sensor 33, the cover element 50, and the coupling element 90, which is caused by the rotation of the motor 60, is described with reference to the Fig. Described in sections 18 to 20 and 21 to 24.

[0048] Fig. 18 and Fig. Figures 21 each show a state in which the infrared sensor 33 is in the reference position. Fig. 19 and Fig. Figures 22 show a state in which the infrared sensor 33 is in a position where the rotation of the infrared sensor 33 is stopped. Fig. Figure 20 shows a state in which the infrared sensor 33 is in a position where it is obscured. When the infrared sensor 33 is in the reference position, it and the opening 56 of the cover element 50 face the front of the air conditioning device 1. A portion of the infrared sensor 33, corresponding to its viewing angle, faces the front of the air conditioning device 1, so that this portion is not obscured by the cover element 50. This means that this portion faces a space to be subjected to climate control. At this point, the first inclined surface 76A of the engagement section 76 of the first gear element 70 and the second inclined surface 90A of the coupling element 90 are in contact with each other, as shown in Figure 20. Fig. 21 is shown. In addition, the stopper receiving section 21B of the upper base 21 and the stopper 91 of the coupling element 90 are spaced apart from each other.

[0049] Starting from the one in the Fig. 18 and Fig. The state shown in Figure 21 occurs when the motor 60 is rotated and the first gear element 70 is rotated in the first direction, rotating the infrared sensor 33 and the cover element 50, with the infrared sensor 33 positioned so that it faces the opening 56 of the cover element 50. This state continues until the point shown in Figure 21. Fig. The state shown in Figure 19 is maintained. That is, a state in which the part of the infrared sensor 33 corresponding to its field of view is not obscured by the cover element 50 is maintained until the infrared sensor 33 is rotated from the reference position to a position in which its rotation has stopped. When the coupling element 90 is rotated to reach a position in which the stopper 91 of the coupling element 90 is in contact with the stopper receiving section 21B of the upper base 21, the infrared sensor 33 is in the position in which its rotation has stopped.

[0050] If the engine starts at 60 from the one in Fig. As the state shown in Figure 19 is further rotated and the first gear element 70 is further rotated in the first direction, the first inclined surface 76A of the engagement section 76 of the first gear element 70 and the second inclined surface 90A of the lower section of the coupling element 90 are displaced from their position in Fig. 22 shown contact states separated from each other. As in Fig. As shown in Figure 23, the coupling element 90 is then pushed upwards. This stops the rotation of the infrared sensor 33, and only the cover element 50 continues to rotate. As shown in Fig. As shown in Figure 20, the part of the infrared sensor 33 that corresponds to its field of view is covered by the part of the cover element 50 in which the opening 56 is not formed.

[0051] If the engine starts at 60 from the one in Fig. When the state shown in Figure 20 is rotated in the opposite direction and the first gear element 70 is rotated in the second direction, only the cover element 50 is rotated in the second direction. At this point, the second inclined surface 90A of the lower section of the coupling element 90 is guided by the first inclined surface 76A of the engagement section 76 of the first gear element 70 to slide diagonally downwards. As a result, the coupling element 90 is moved downwards, and the second inclined surface 90A and the first inclined surface 76A are again in the position shown in Figure 20. Fig. The state shown in 22 is brought into being. Furthermore, as in Fig. As shown in Figure 19, the infrared sensor 33 is positioned so that it faces the opening 56 of the cover element 50. When the motor 60 is rotated further in the opposite direction and the first gear element 70 is rotated further in the second direction, the infrared sensor 33 and the cover element 50 are rotated, while the infrared sensor 33 remains facing the opening 56 of the cover element 50. The infrared sensor 33 is then inserted into the Fig. 18 and Fig. 21 reference position returned.

[0052] It is pointed out that if the engine starts at 60° from the point in Fig. 23 is rotated in the state shown and the first gear element 70 is rotated further in the first direction, the first inclined surface 76A of the first gear element 70 is brought into contact with the rotation-limiting projection 94 of the coupling element 90, as shown in Fig. Figure 24 illustrates this. At this point, the stopper 91 of the coupling element 90 is in contact with the stopper receiving section 21B of the upper base 21, and the rotation of the coupling element 90 in the first direction is thus limited. Therefore, the rotation of the first gear element 70 is limited even when the motor 60 is rotated to continue exerting a rotational force in the first direction on the first gear element 70.

[0053] Fig. Figure 25 is a functional block diagram of the air conditioning device according to embodiment 1. A control unit 100 is a special piece of hardware or a central processing unit (CPU) that executes a program stored in memory. It should be noted that the CPU may also be referred to as a central processing unit, processing unit, computing device, microprocessor, microcomputer, or processor.

[0054] If the control unit 100 is dedicated hardware, then the control unit 100 is, for example, a single circuit, a composite circuit, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a combination of these circuits. Functional units implemented by the control unit 100 can each be implemented by corresponding hardware or by a single piece of hardware.

[0055] If the control unit 100 is the CPU, each of the functions performed by the control unit 100 is executed by software, firmware, or a combination of both. The software and the firmware are each described as a program and stored in memory. The CPU reads a program stored in memory and executes it, thereby fulfilling a corresponding function of the control unit 100. It should be noted that the memory can be non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, or EEPROM.

[0056] Some of the functions of the control unit 100 can be fulfilled by the dedicated hardware, while other functions of the control unit 100 can be fulfilled by software or firmware.

[0057] The control unit 100 comprises a drive unit 101, a temperature sensing unit 102, and a processing unit 103. The drive unit 101 outputs a control signal to the motor 60. This control signal specifies, for example, the rotation, the direction of rotation, and when the rotation should stop. The motor 60 is driven based on the control signal output by the drive unit 101. The infrared sensor 33 outputs a measurement result to the temperature sensing unit 102. The processing unit 103 calculates the temperature of a heat source in the air-conditioned room based on the measurement result output by the infrared sensor 33.In particular, a temperature detected by the infrared sensor 33 when a portion of the infrared sensor 33 corresponding to its field of view is exposed (i.e., when the aforementioned portion is not obscured) is compensated on the basis of a temperature detected by the infrared sensor 33 when the portion corresponding to its field of view is obscured. That is to say, the temperature detected when the infrared sensor 33 is positioned facing the opening 56 of the cover element 50 is compensated on the basis of the temperature detected by the infrared sensor 33 when the infrared sensor 33 is positioned facing the portion of the cover element 50 that does not have the opening 56.

[0058] According to embodiment 1, the infrared sensor 33 is positioned such that it faces the opening 56 of the cover element 50 when it is facing the air-conditioned room. Thus, the infrared sensor 33 detects the temperature of a heat source in the air-conditioned room in a state where the portion of the infrared sensor 33 corresponding to the field of view is not obscured. When it is not facing the air-conditioned room, the infrared sensor 33 is positioned so that it faces the portion of the cover element 50 where the opening 56 is not formed, and the portion of the infrared sensor 33 corresponding to the field of view is obscured. Since the infrared sensor 33 detects a temperature in the aforementioned state, the temperature of the heat generated by the infrared sensor 33 itself can be detected. It is therefore possible to accurately calculate the temperature of the air-conditioned room.Accordingly, even when using a highly sensitive infrared sensor 33 that detects self-heating, it is possible to perform a measurement that advantageously utilizes the sensor's properties. Thus, according to embodiment 1, it is possible to improve the versatility of temperature measurement by the air conditioning device 1. Design 2

[0059] Fig. Figure 26 is an enlarged view of part of the front of an air conditioning device according to embodiment 2. Fig. 26 are the components, which are the same as those in embodiment 1, described above with reference to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19 to Fig. The components described in section 20 are designated with the same reference numerals as in embodiment 1. Furthermore, in the following description, the components designated with the same reference numerals as in embodiment 1 are also the same as those in embodiment 1, which were described above with reference to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19 to Fig. 20 are described. Detailed descriptions of the same components as in embodiment 1 are omitted. Fig. Figure 26 is an enlarged view of a right end section of the front of an air conditioning device 300. In embodiment 2, the heat source detection unit 20 does not have the stopper receiving section 21B of the upper base 21, which is described above in relation to embodiment 1. Therefore, the infrared sensor 33 is rotated together with the cover element 50, with the infrared sensor 33 remaining facing the opening 56 of the cover element 50.

[0060] The air conditioning device 300 includes a cover part 301. The cover part 301 is in the form of a plate and is made of a material that does not allow infrared radiation to pass through. The cover part 301 is positioned between the decorative panel 11, which is part of the housing of the air conditioning device 300, and the heat source detection unit 20.

[0061] Fig. Figure 27 is a perspective view of the cover part of the air conditioning device according to embodiment 2, seen from below. 27 The illustration of the heat source detection unit 20 is omitted. The cover part 301 is shaped such that it is curved according to an outer circumferential surface of the cover element 50. If the cover element 50 is extended from the surface shown in Fig. When the infrared sensor 33 is rotated to the position shown in Figure 22 and is facing the rear, the part of the infrared sensor 33 corresponding to its field of view is covered by the cover 301. If the infrared sensor 33 detects a temperature in this state, the temperature of the heat generated by the infrared sensor 33 itself can be detected. It is therefore possible to achieve the same advantages as in embodiment 1. Reference symbol list 1 air conditioning unit, 10 rear box, 11 Decorative trim, 12 Air intake, 13 air outlets, 14 heat exchangers, 15 fans, 16 electrical assembly, 17 drip tray, 18 Wind direction adjustment plate, 20 heat source detection units, 21 upper base, 21B Stopper receiving section, 22 lower base, 22A first assembly section, 22B second assembly section, 22°C advantage, 23 Sleeve, 24 screws, 25 screws, 30 sensor parts, 31 sensor carriers, 32 carrier holders, 33 Infrared sensor, 40 mounting elements, 41 upper mounting frame, 41A slot, 41B slot, 42 lower mounting frame, 42A Window, 42B lead, 50 cover elements, 51 Underside, 52 access slots, 53 access slots, 54 access holes, 55 access hole, 56 opening, 57 Recording section, 60 engine, 61 Motor shaft, 70 first gear element, 71 hollow cylindrical section, 72 Gear section, 73 flange, 74 straight lead, 75 rectangular projection, 76 Intervention section, 76A first inclined surface, 80 second gear element, 81 upper bearing, 82 lower bearing, 83 Gear section, 90 coupling element, 90A second inclined surface, 90B flange, 91 stoppers, 92 straight lead, 93 straight lead, 94 rotation-limiting projection, 100 control units, 101 Drive unit, 102 Temperature sensing unit, 103 computing unit, 201 Sensor carrier bodies, 202 Cover assembly, 300 air conditioning unit, 301 Cover part, L1 to L4 Limits of the viewing angle

Claims

Air conditioning device (1) comprising a heat source detection unit (20) provided on a front of a housing, wherein the heat source detection unit (20) comprises: an infrared sensor (33) configured to detect a heat source in an air-conditioned room, a mounting element (40) supporting the infrared sensor (33), and a cover element (50) accommodating the infrared sensor (33) and the mounting element (40), wherein the cover element (50) is made of a material that does not allow infrared radiation to pass through, wherein the cover element (50) has an opening (56), wherein the mounting element (40) and the cover element (50) are configured to be rotatable about an axis extending in a vertical direction, and wherein the infrared sensor (33), together with the mounting element (40), is configured to rotate about the axis extending in the vertical direction between a reference position,in which the infrared sensor (33) faces the front of the air conditioning device (1), and a rotation stop position in which the infrared sensor (33) does not face the front of the air conditioning device (1), when the infrared sensor (33) is rotated in a first direction, which is a direction from the reference position towards the rotation stop position, and the infrared sensor (33) faces the air-conditioned room, and when the infrared sensor (33) is rotated in a second direction, which is a direction from the rotation stop position towards the reference position, and which is the opposite direction to the first direction, and the infrared sensor (33) faces the air-conditioned room, the mounting element (40) and the cover element (50) are rotated, wherein the infrared sensor (33) is arranged so that it faces the opening (56),and when the cover element (50) is rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, and when the cover element (50) is rotated in the second direction towards the rotation stop position after it has been rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, until the cover element (50) reaches the rotation stop position. Air conditioning device (1) according to claim 1, wherein the heat source detection unit (20) comprises a motor (60) and a transmission unit (70, 80, 90) configured to transmit a rotation of the motor (60) to the mounting element (40) and the cover element (50), wherein both the mounting element (40) and the cover element (50) have a hollow cylindrical shape and the infrared sensor (33) is provided in the mounting element (40) and is supported by the mounting element (40), wherein both the mounting element (40) and the cover element (50) are configured to be rotatable about an axis when the rotation of the motor (60) is transmitted by the transmission unit (70, 80, 90) to the mounting element (40) and the cover element (50), wherein the transmission unit (70, 80, 90) comprises: a first gear element (70) attached to the cover element (50), a second gear element (80),which is attached to a motor shaft (61) of the motor (60) and engages with the first gear element (70), and a coupling element (90) connected to the mounting element (40), wherein the coupling element (90) is configured to transmit a rotation of the first gear element (70) to the mounting element (40) when the infrared sensor (33) is facing the climate-controlled room and positioned so that it is facing the opening (56) of the cover element (50), and to bring the mounting element (40) to a standstill independently of a rotation of the first gear element (70) when the infrared sensor (33) is not facing the climate-controlled room. Air conditioning device (1) according to claim 2, wherein the first gear element (70) comprises a hollow cylindrical section (71), a gear section (72) formed on an outer surface of the hollow cylindrical section (71), and an engagement section (76) formed on an inner surface of the hollow cylindrical section (71), wherein the engagement section (76) has an upper end surface on which a first inclined surface (76A) is formed, the first inclined surface (76A) being inclined in a vertical direction, wherein the coupling element (90) has a hollow cylindrical shape and a lower end surface on which a second inclined surface (90A) is formed, the second inclined surface (90A) being inclined in a vertical direction, wherein the retaining element (40) is inserted from below into the hollow cylindrical section (71) of the first gear element (70).wherein the coupling element (90) is provided between the mounting element (40) and the hollow cylindrical section (71) of the first gear element (70) and is configured to transmit the rotation of the first gear element (70) to the mounting element (40), wherein the second inclined surface (90A) is in contact with the first inclined surface (76A) when the infrared sensor (33) is facing the air-conditioned room and is positioned so that it faces the opening (56) of the cover element (50), and wherein when the mounting element (40) is rotated in the first direction to reach a position in which the air-conditioned room is outside the field of view of the infrared sensor (33), the rotation of the coupling element (90) is stopped, and when the mounting element (40) is rotated further in the first direction,the second inclined surface (90A) slides over the first inclined surface (76A) and the second inclined surface (90A) and the first inclined surface (76A) are separated from each other from a contact state between the second inclined surface (90A) and the first inclined surface (76A). Air conditioning device (1) according to claim 3, further comprising: an upper base (21) supporting the motor (60); and a lower base (22) provided below the upper base (21) and on which the cover element (50) and the mounting element (40) are provided, wherein a stopper (91) is provided on an upper end face of the coupling element (90) projecting upwards, wherein a stopper receiving section (21B) is provided on a lower face of the upper base (21), and wherein, when the mounting element (40) is rotated in the first direction to reach a position in which the air-conditioned space is outside the field of view of the infrared sensor (33), the stopper (91) is brought into contact with the stopper receiving section (21B), thereby stopping the rotation of the coupling element (90) in the first direction. Air conditioning device (1) according to one of claims 1 to 4, further comprising: a control unit (100) configured to determine a temperature of the air-conditioned room based on a detection result by the infrared sensor (33), wherein the control unit (100) is configured to compensate for a temperature detected by the infrared sensor (33) when a part of the infrared sensor (33) corresponding to its field of view is exposed, based on a temperature detected by the infrared sensor (33) when the part of the infrared sensor (33) is covered.

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