Air conditioning system and pest control module

Abstract

This suppresses the decrease in the amount of volatilization of the control component that occurs as the solid control agent is consumed. [Solution] The air conditioning device (1) includes a pest control module (31). The pest control module (31) includes a volatile solid pest control agent (32) that inhibits the activity of insects (I), and a frame (33) that houses the solid pest control agent (32). The solid pest control agent (32) has a first end face (32a) and a second end face (32b) that form both end faces in the thickness direction, and a circumferential surface (32c) that extends in the thickness direction so as to connect the periphery of the first end face (32a) and the periphery of the second end face (32b). The frame (33) includes an inner circumferential surface (34a) that exposes the first end face (32a) and covers the circumferential surface (32c) of the solid pest control agent (32) from the outside so as to be in contact with the circumferential surface (32c).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an air conditioning apparatus and a pest control agent module. BACKGROUND ART

[0002] Patent Document 1 discloses an apparatus for controlling insects present in an indoor space serving as a target space. In this apparatus, a pest control agent (insecticide) having a repellent effect that insects instinctively dislike or an inhibitory effect that inhibits the activity of insects is diffused from a diffusion unit toward the target space. This reduces the number of insects in the indoor space. PRIOR ART DOCUMENTS PATENT DOCUMENTS

[0003] PATENT DOCUMENT 1 Japanese Unexamined Patent Application Publication No. 2024-11598 SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION

[0004] As the pest control agent mounted on the apparatus disclosed in Patent Document 1, it is conceivable to use a solid pest control agent composed of a sublimable substance containing a pest control component for controlling insects, from the viewpoint of good handleability. The volatilization amount of the pest control component from the solid pest control agent varies according to the surface area of the solid pest control agent exposed to the air. When the solid pest control agent is consumed and reduced in size as sublimation progresses, the surface area of the solid pest control agent also decreases, and accordingly the volatilization amount of the pest control component from the solid pest control agent decreases.

[0005] An object of the present disclosure is to suppress a decrease in the volatilization amount of the pest control component accompanying consumption of the solid pest control agent. MEANS FOR SOLVING THE PROBLEM

[0006] A first aspect of this disclosure relates to an air conditioning system. The air conditioning system according to the first aspect includes a pest control module. The pest control module includes a solid pest control agent made of a sublimable substance containing a pest control component for controlling insects, and a housing for housing the solid pest control agent. The solid pest control agent has a first end face and a second end face that form both end faces in the thickness direction, and a circumferential surface that extends in the thickness direction so as to connect the periphery of the first end face and the periphery of the second end face. The housing includes an inner circumferential surface that exposes the first end face and covers the circumferential surface from the outside so as to contact the circumferential surface of the solid pest control agent.

[0007] In the first embodiment, the pest control module is mounted on an air conditioning system. This allows the pest control components to be released from the pest control module into the target space using the airflow from the air conditioning system. In the pest control module, the first end face of the solid pest control agent is exposed to the air by being exposed from the housing, while the circumferential surface of the solid pest control agent is covered by the inner circumferential surface of the housing and in contact with the inner circumferential surface, thereby limiting contact with the air. This suppresses the sublimation and consumption of the solid pest control agent from the circumferential surface, while allowing the solid pest control agent to be sublimated from the first end face and consumed in the thickness direction. This suppresses the decrease in the amount of volatilization of pest control components that occurs as the solid pest control agent is consumed. Therefore, insects present in the target space can be effectively controlled over a long period of time.

[0008] A second aspect of this disclosure is an air conditioning system according to the first aspect, wherein the air conditioning system has an air passage through which air supplied to a target space flows. The pest control module is positioned in the air passage such that the first end face is aligned with the airflow.

[0009] In the second embodiment, the pest control module is arranged in the air channel, and the first end face of the solid pest control agent is aligned with the airflow. This allows the pest control components of the solid pest control agent sublimated from the first end face to be contained in the air supplied to the target space and flowed effectively. This is advantageous for efficiently dispersing the pest control components into the target space.

[0010] A third aspect of the present disclosure is an air conditioning system according to the second aspect, wherein the air passage is provided with a heat exchanger and a fan for transporting air so as to pass through the heat exchanger. The pest control module is located downstream of the heat exchanger in the air passage.

[0011] In the third embodiment, the pest control module is positioned downstream of the heat exchanger in the airflow path. If the pest control module is positioned upstream of the heat exchanger in the airflow path, there is a risk that the pest control components volatilized from the solid pest control agent during cooling operation will be cooled by the heat exchanger and recondensed. In contrast, by positioning the pest control module downstream of the heat exchanger in the airflow path, the recondensation of the pest control components volatilized from the solid pest control agent can be suppressed. This is advantageous for efficiently dispersing the pest control components into the target space.

[0012] A fourth aspect of the present disclosure is an air conditioning system according to the second or third aspect, wherein the housing exposes the second end face.

[0013] In the fourth embodiment, both the first and second end faces of the solid insecticide are exposed to the air from the containment. This allows for a greater amount of volatilization of the insecticidal components from the solid insecticide compared to the case where only the first end face is exposed to the air. This is advantageous for insect control.

[0014] A fifth aspect of the present disclosure is an air conditioning system according to any one of the second to fourth aspects, wherein the cross-section in a direction perpendicular to the thickness direction of the solid pest control agent has the same shape and dimensions between the first end face and the second end face.

[0015] In the fifth embodiment, the cross-section of the solid pest control agent in the direction perpendicular to the thickness direction between the first and second end faces is the same shape and has the same dimensions. This makes it possible to suppress changes in the amount of volatilization of the pest control component as the solid pest control agent is consumed in the thickness direction from the first end face, or from both the first and second end faces.

[0016] A sixth aspect of this disclosure is an air conditioning system according to any one of the second to fifth aspects, wherein the rate of change of the exposed area of ​​the solid pest control agent exposed from the container when the solid pest control agent is consumed to half its initial volume is 10% or less.

[0017] In the sixth embodiment, the rate of change in the exposed area from the initial state when the volume of the solid pest control agent is halved is small, at 10% or less. This allows the amount of volatilization of the control component from the solid pest control agent to be maintained over a long period of time.

[0018] A seventh aspect of this disclosure is an air conditioning device according to any one of the second to sixth aspects, wherein the inner circumferential surface of the housing portion is in contact with the circumferential surface over the entire circumference of the solid pest control agent.

[0019] In the seventh embodiment, the circumferential surface of the solid pest control agent is in contact with the inner circumferential surface of the containment part over its entire circumference. This prevents air from circulating between the circumferential surface of the solid pest control agent and the inner circumferential surface of the containment part, thereby suppressing sublimation from the circumferential surface of the solid pest control agent and the resulting consumption of the solid pest control agent over its entire circumference.

[0020] An eighth aspect of the present disclosure is an air conditioning device according to the seventh aspect, wherein the inner circumferential surface of the housing portion is in contact with the entire circumferential surface of the solid pest control agent.

[0021] In the eighth embodiment, the entire circumferential surface of the solid pest control agent is in contact with the inner circumferential surface of the containment. This effectively suppresses sublimation from the circumferential surface of the solid pest control agent and the resulting consumption of the solid pest control agent. As a result, the amount of pest control components released from the solid pest control agent can be maintained over a long period of time.

[0022] A ninth aspect of the present disclosure is an air conditioning system comprising a pest control unit in which a plurality of the pest control modules are combined, in any one of the first to eighth aspects of the present disclosure.

[0023] In a ninth aspect, a pest control agent unit in which a plurality of pest control agent modules are combined is provided. When pest control agent modules having the same exposed area from the containing portion of the solid pest control agent are used, the volatilization amount of the pest control component from the pest control agent unit increases as the number of the pest control agent modules increases. Therefore, the volatilization amount of the pest control component from the pest control agent unit can be controlled according to the number of the pest control agent modules.

[0024] A tenth aspect of the present disclosure is the air conditioning apparatus according to the ninth aspect, wherein the plurality of pest control agent modules constituting the pest control agent unit are arranged at intervals from each other in the thickness direction of the solid pest control agent in a posture where the thickness directions of the respective solid pest control agents correspond to each other.

[0025] In the tenth aspect, the plurality of pest control agent modules constituting the pest control agent unit are arranged side by side at intervals from each other in the thickness direction of the solid pest control agent. According to this, since air can flow between the adjacent pest control agent modules, the pest control agent unit can be made compact while ensuring the volatilization amount of the pest control component corresponding to the number of the pest control agent modules.

[0026] An eleventh aspect of the present disclosure is directed to a pest control agent module used in the air conditioning apparatus according to any one of the first to tenth aspects. The pest control agent module according to the eleventh aspect is arranged in an air flow path through which air to be supplied to a target space in the air conditioning apparatus flows.

[0027] In the eleventh aspect, the pest control agent module is arranged in the air flow path, and the first end face of the solid pest control agent follows the flow of air, so that the pest control component of the solid pest control agent sublimated from the first end face can be favorably carried by the air supplied to the target space. This is advantageous for efficiently dissipating the pest control component into the target space. [Brief Description of the Drawings]

[0028] [Figure 1] FIG. 1 is a schematic configuration diagram of an air conditioning apparatus having a pest control agent unit according to Embodiment 1. [Figure 2]Figure 2 is a plan view illustrating a pest control unit according to Embodiment 1. [Figure 3] Figure 3 is a cross-sectional view of the pest control unit along the line III-III in Figure 2. [Figure 4] Figure 4 is a plan view illustrating another embodiment of the pest control unit according to Embodiment 1. [Figure 5] Figure 5 is a cross-sectional view illustrating the state of the pest control unit according to Embodiment 1 when the volume of the solid pest control agent has been halved. [Figure 6] Figure 6 is a cross-sectional view illustrating a pest control unit according to Embodiment 2. [Figure 7] Figure 7 is a plan view illustrating a pest control unit according to Embodiment 3. [Figure 8] Figure 8 is a cross-sectional view of the pest control unit along the line VIII-VIII in Figure 7. [Figure 9] Figure 9 is a cross-sectional view illustrating a pest control unit according to Embodiment 4. [Figure 10] Figure 10 is a cross-sectional view illustrating a pest control unit according to Embodiment 5. [Figure 11] Figure 11 is a side view illustrating a pest control unit according to Embodiment 5. [Figure 12] Figure 12 is a side view illustrating a modified example of the pest control unit according to Embodiment 5. [Figure 13] Figure 13 is a side view illustrating a modified example of the pest control unit according to Embodiment 5. [Figure 14] Figure 14 is a cross-sectional view illustrating a pest control unit according to another embodiment. [Figure 15] Figure 15 is a cross-sectional view illustrating a pest control module according to another embodiment. [Figure 16] Figure 16 is a schematic diagram of an air conditioning system according to another embodiment. [Modes for carrying out the invention]

[0029] The following exemplary embodiments will be described in detail with reference to the drawings. The following embodiments will be examples of cases in which the pest control module and pest control unit according to the present disclosure are applied to an air conditioning system. The drawings are intended to conceptually illustrate the technology of the present disclosure. Therefore, in order to facilitate understanding of the technology of the present disclosure, dimensions, ratios, or numbers may be exaggerated or simplified in the drawings.

[0030] Embodiment 1 The air conditioning unit (1) provides air conditioning to a target space (S) inside a room. The air conditioning unit (1) in this embodiment is an air conditioning unit that adjusts the temperature of the air in the target space (S). Specifically, the air conditioning unit (1) performs cooling operation and heating operation. In cooling operation, the air conditioning unit (1) cools the air in the target space (S). In heating operation, the air conditioning unit (1) heats the air in the target space (S).

[0031] The air conditioning device (1) provides air conditioning to the target space (S) and also releases inhibitory components into the target space (S) that inhibit the activity of insects (I). The air conditioning device (1) drives away insects (I) present in the target space (S) or makes the target space (S) an environment that is unsuitable for insects (I), thereby reducing the number of insects (I) in the target space (S). Here, the inhibitory component is an example of a control component that controls insects (I). Furthermore, "inhibiting the activity of insects (I)" includes, for example, reducing the sensitivity of the insects' (I) olfactory or tactile functions, or inhibiting their reproductive capacity.

[0032] As shown in Figure 1, the target space (S) is an indoor space where people (H) stay, such as a bedroom, living room, kitchen, or office in a house. The insects (I) targeted by the air conditioning device (1) are, for example, mosquitoes, moths, cockroaches, spiders, ants, and mites. These targeted insects (I) are pests that are relatively common in the target space (S) where people (H) live.

[0033] -Configuration of an air conditioning system- The air conditioning system (1) comprises an outdoor unit (10), an indoor unit (20), and a pest control unit (30). The outdoor unit (10) and the indoor unit (20) are connected via a liquid connecting pipe (3) and a gas connecting pipe (5). This connection constitutes a refrigerant circuit. The refrigerant circuit is filled with refrigerant. The refrigerant circuit consists of an outdoor element and an indoor element. The refrigerant circuit performs a refrigeration cycle by circulating the refrigerant.

[0034] <Outdoor unit> The outdoor unit (10) is installed outdoors, outside the target space (S). The outdoor unit (10) is installed, for example, on the rooftop or on the ground of a building. The outdoor unit (10) comprises an outdoor casing (12), an outdoor element, and an outdoor fan. The outdoor element and the outdoor fan are housed in the outdoor casing (12). The outdoor element includes a compressor, an outdoor heat exchanger, an expansion valve, and a four-way switching valve.

[0035] <Indoor Unit> The indoor unit (20) is installed in the target space (S). The indoor unit (20) in this embodiment is configured to be ceiling-recessed. Specifically, the indoor unit (20) is installed on the ceiling of the target space (S). The indoor unit (20) comprises an indoor casing (21) and indoor elements. The indoor elements are housed in the indoor casing (21). The indoor elements include an indoor heat exchanger (22) and an indoor fan (23).

[0036] The indoor casing (21) is formed in the shape of a rectangular parallelepiped, hollow box. An intake port (24) is formed in the center of the lower surface of the indoor casing (21). Discharge outlets (25) are formed on each of the four side edges of the lower surface of the indoor casing (21). The indoor casing (21) has an air passage (P1). The air passage (P1) is provided inside the indoor casing (21) from the intake port (24) to each discharge outlet (25). Air to be supplied to the target space (S) flows through the air passage (P1).

[0037] The indoor fan (23) is installed in the air passage (P1). The indoor fan (23) is positioned above the intake port (24). The indoor fan (23) is a centrifugal fan, specifically a turbo fan. The indoor fan (23) blows air drawn upward from the intake port (24) outwards to the outer periphery, transporting the air in the target space (S) so that it passes through the indoor heat exchanger (22). The indoor fan (23) is configured as a variable airflow type with a variable motor rotation speed.

[0038] The indoor heat exchanger (22) is installed downstream of the indoor fan (23) in the air passage (P1). The indoor heat exchanger (22) is positioned around the indoor fan (23). Air transported by the indoor fan (23) passes through the indoor heat exchanger (22). A refrigerant flows inside the indoor heat exchanger (22). The indoor heat exchanger (22) exchanges heat between the air transported by the indoor fan (23) and the refrigerant flowing inside.

[0039] The indoor heat exchanger (22) functions as an evaporator during cooling operation and as a condenser (radiator) during heating operation. In the indoor unit (20), air drawn into the indoor casing (21) from the intake port (24) by the operation of the indoor fan (23) is cooled or heated by the indoor heat exchanger (22) as it flows through the air passage (P1), and then blown out from the outlet (25) and supplied to the target space (S).

[0040] <Pest Control Unit> The pest control unit (30) is mounted on the indoor unit (20). The pest control unit (30) is installed in the air passage (P1). Although not shown in detail, the pest control unit (30) is located downstream of the indoor heat exchanger (22) in the air passage (P1). The pest control unit (30) may be installed for each outlet (25), or it may be installed corresponding to only one or some of the outlets (25).

[0041] As shown in Figures 2 and 3, the pest control unit (30) comprises a pest control module (31) and a mounting base (40). The pest control module (31) includes a solid pest control agent (32) and a frame (33). The pest control module (31) is a tablet-shaped functional component for imparting an inhibitory component (pest control component) to the air flowing through the air passage (P1). The pest control module (31) has a circular outer shape in plan view. The pest control module (31) may have a rectangular outer shape in plan view as shown in Figure 4, or it may have other shapes.

[0042] The solid control agent (32) in this example is an inhibitor that exerts an effect on the activity of insect (I). The solid control agent (32) is a solid made of a sublimable substance containing an inhibitory component. The sublimable substance making up the solid control agent (32) is not particularly limited, but examples include phenolic agents such as isopropylmethylphenol (IPMP), diisopropylphenol, and tert-butylmethylphenol. The solid control agent (32) is formed in the shape of a plate. The solid control agent (32) may also be formed in the shape of a column, with a thickness greater than its outer diameter. The solid control agent (32) sublimes from the surface in contact with the air, volatilizing the inhibitory component into the air.

[0043] The surface of the solid pest control agent (32) has a first end face (32a), a second end face (32b), and a circumferential surface (32c). The first end face (32a) and the second end face (32b) form the end faces of the solid pest control agent (32) in the thickness direction and face away from each other. The first end face (32a) faces away from the installation surface (20a), and the second end face (32b) faces the installation surface (20a). In this example, the first end face (32a) and the second end face (32b) are each formed as flat surfaces. The circumferential surface (32c) extends in the thickness direction so as to connect the periphery of the first end face (32a) and the periphery of the second end face (32b), and faces the outer circumference side of the solid pest control agent (32).

[0044] The cross-section of the solid pest control agent (32) in a direction perpendicular to the thickness direction has the same shape and dimensions between the first end face (32a) and the second end face (32b). For example, if the solid pest control agent (32) is disc-shaped or cylindrical, the diameter of the solid pest control agent (32) is the same throughout its thickness direction. Also, if the solid pest control agent (32) is rectangular plate-shaped or rectangular column-shaped, the outer diameter dimension (length of each side) of the solid pest control agent (32) is the same throughout its thickness direction.

[0045] The frame (33) is a retaining frame that surrounds the outer circumference of the solid pest control agent (32). The frame (33) is formed in a completely closed loop shape, such as a circle or rectangle. The frame (33) constitutes a housing section (34) that houses the solid pest control agent (32). The frame (33) has a housing hole (35). The solid pest control agent (32) is fitted into the housing hole (35). In this embodiment, the entire solid pest control agent (32) is placed inside the housing hole (35). The frame (33) includes an inner circumferential surface (34a) facing inward into the housing hole (35).

[0046] The inner circumferential surface (34a) of the frame (33) has a shape corresponding to the circumferential surface (32c) of the solid pest control agent (32) and defines the receiving hole (35). The inner circumferential surface (34a) of the frame (33) covers the circumferential surface (32c) of the solid pest control agent (32) from the outside so as to contact the circumferential surface (32c) of the solid pest control agent (32). In this embodiment, the inner circumferential surface (34a) of the frame (33) is in contact with the entire circumferential surface (32c) of the solid pest control agent (32). That is, the inner circumferential surface (34a) of the frame (33) is in contact with the circumferential surface (32c) of the solid pest control agent (32) over its entire circumference.

[0047] The space between the inner circumferential surface (34a) of the frame (33) and the circumferential surface (32c) of the solid pest control agent (32) is sealed. Contact of the circumferential surface (32c) of the solid pest control agent (32) with air is restricted by the frame (33). This restricts sublimation from the circumferential surface (32c) of the solid pest control agent (32). The frame (33) exposes the first end surface (32a) of the solid pest control agent (32) through an opening at one end of the containment hole (35) and the second end surface (32b) of the solid pest control agent (32) through an opening at the other end of the containment hole (35).

[0048] The mounting base (40) is a frame for installing the pest control module (31) at a predetermined location on the indoor unit (20). The mounting base (40) is configured to allow air to circulate between the mounting surface (20a) of the pest control unit (30) and the pest control module (31). Specifically, the mounting base (40) has a holding part (41) and a plurality of legs (42). The holding part (41) holds the pest control module (31) from the outer periphery with the first end surface (32a) and second end surface (32b) of the solid pest control agent (32) exposed. The plurality of legs (42) are provided spaced apart from each other in the circumferential direction of the holding part (41) and support the holding part (41) in a state where it is lifted off the mounting surface (20a).

[0049] The pest control unit (30) is positioned in the air passage (P1) such that the first end face (32a) and second end face (32b) of the solid pest control agent (32) are aligned with the airflow (shown by dashed lines in Figures 2 and 3). The first end face (32a) and second end face (32b) of the solid pest control agent (32) are exposed to the air flowing through the air passage (P1). As a result, the solid pest control agent (32) is gradually consumed by sublimation from the first end face (32a) and second end face (32b). The inhibitory components sublimated from the solid pest control agent (32) are volatilized into the air flowing through the air passage (P1). The air containing the inhibitory components is then released into the target space (S) from the outlet (25) of the indoor unit (20).

[0050] As shown by the dashed line in Figure 5, as the solid pest control agent (32) is consumed in the thickness direction from the first end face (32a) and the second end face (32b), the first end face (32a) and the second end face (32b) are displaced so that they recede inward in the thickness direction. The first end face (32a) and the second end face (32b) each maintain a constant or approximately constant area even as they are displaced due to the consumption of the solid pest control agent (32). The rate of change in the exposed area of ​​the solid pest control agent (32) from the frame (33) when the solid pest control agent (32) is consumed to half its initial volume is 10% or less.

[0051] -Features of Embodiment 1- In this embodiment 1, the air conditioning unit (1) is equipped with a pest control module (31). This allows the pest control component to be released from the pest control module (31) into the target space (S) using the airflow from the air conditioning unit (1). In addition, in the pest control module (31), the first end face (32a) and the second end face (32b) of the solid pest control agent (32) are exposed to the air by being exposed from the frame (33), while the circumferential surface (32c) of the solid pest control agent (32) is covered by the inner circumferential surface (34a) of the frame (33) and contacts the inner circumferential surface (34a), thereby limiting contact with the air. This suppresses sublimation and consumption of the solid pest control agent (32) from the circumferential surface (32c), while allowing the solid pest control agent (32) to be sublimated from the first end face (32a) and the second end face (32b) and consumed in the thickness direction. According to this, the decrease in the amount of volatilization of inhibitory components that occurs as the solid control agent (32) is consumed can be suppressed. Therefore, insects (I) present in the target space (S) can be effectively controlled over a long period of time.

[0052] In this embodiment 1 of the air conditioning system (1), the pest control module (31) is placed in the air passage (P1) of the indoor unit (20), and the first end face (32a) of the solid pest control agent (32) is aligned with the airflow. This allows the pest control components of the solid pest control agent (32) sublimated from the first end face (32a) to be contained in the air supplied to the target space (S) and flowed effectively. This is advantageous for efficiently dispersing the pest control components into the target space (S).

[0053] In the air conditioning system (1) of this embodiment 1, the pest control module (31) is positioned downstream of the indoor heat exchanger (22) in the air passage (P1). If the pest control module (31) is positioned upstream of the indoor heat exchanger (22) in the air passage (P1), there is a risk that the pest control components volatilized from the solid pest control agent (32) during cooling operation will be cooled by the indoor heat exchanger (22) and recondense. In contrast, by positioning the pest control module (31) downstream of the indoor heat exchanger (22) in the air passage (P1), the recondensation of the pest control components volatilized from the solid pest control agent (32) can be suppressed. This is advantageous for efficiently dispersing the pest control components into the target space (S).

[0054] In the air conditioning device (1) of this embodiment 1, both the first end face (32a) and the second end face (32b) of the solid pest control agent (32) in the pest control agent module (31) are exposed to the air from the frame (33). This allows for a greater amount of volatilization of inhibitory components from the solid pest control agent (32) compared to, for example, when only the first end face (32a) of the solid pest control agent (32) is exposed to the air. This is advantageous for inhibiting the activity of insects (I) and controlling insects (I).

[0055] In the air conditioning device (1) of this embodiment 1, the cross-section of the solid pest control agent (32) in the pest control module (31) between the first end face (32a) and the second end face (32b) is the same shape and has the same dimensions in a direction perpendicular to the thickness direction. This makes it possible to suppress changes in the amount of volatilization of inhibitory components as the solid pest control agent (32) is consumed in the thickness direction from the first end face (32a) and the second end face (32b).

[0056] In the air conditioning device (1) of this embodiment 1, the rate of change in the exposed area from the initial state when the volume of the solid pest control agent (32) in the pest control agent module (31) is halved is small, at 10% or less. As a result, the amount of volatilization of inhibitory components from the solid pest control agent (32) can be maintained over a long period of time.

[0057] In the air conditioning device (1) of this embodiment 1, the circumferential surface (32c) of the solid pest control agent (32) in the pest control agent module (31) is in contact with the inner circumferential surface (34a) of the frame (33) over its entire circumference. This prevents air from flowing between the circumferential surface (32c) of the solid pest control agent (32) and the inner circumferential surface (34a) of the frame (33), thereby suppressing sublimation from the circumferential surface (32c) of the solid pest control agent (32) and the resulting consumption of the solid pest control agent (32) over its entire circumference.

[0058] In the air conditioning device (1) of this embodiment 1, the entire circumferential surface (32c) of the solid pest control agent (32) in the pest control agent module (31) is in contact with the inner circumferential surface (34a) of the frame (33). This effectively suppresses sublimation from the circumferential surface (32c) of the solid pest control agent (32) and the resulting consumption of the solid pest control agent (32). As a result, the amount of volatilization of inhibitory components from the solid pest control agent (32) can be maintained over a long period of time.

[0059] In this embodiment 1 of the pest control module (31), the first end face (32a) and the second end face (32b) of the solid pest control agent (32) are aligned with the airflow in the air passage (P1) of the indoor unit (20). This allows the inhibitory component of the solid pest control agent (32) sublimated from the first end face (32a) and the inhibitory component of the solid pest control agent (32) sublimated from the second end face (32b) to be contained in the air supplied to the target space (S) and flowed effectively. This is advantageous for efficiently dispersing the inhibitory component into the target space (S).

[0060] Embodiment 2 The air conditioning system (1) according to this second embodiment differs from that of the first embodiment in the configuration of the pest control unit (30). In subsequent embodiments 1 to 5, the air conditioning system (1) is configured in the same way as in the first embodiment, except for the difference in the configuration of the pest control unit (30). Therefore, only the pest control unit (30) with the different configuration will be described, and the same components will be left to the description of the first embodiment, and their detailed explanation will be omitted.

[0061] As shown in Figure 6, the pest control unit (30) of this embodiment 2 of the air conditioning system (1) comprises a plurality of pest control modules (31) and an installation stand (40). Each pest control module (31) is the same as that of embodiment 1 above, and has a structure in which a solid pest control agent (32) is housed in a housing hole (35) of a frame (33). The installation stand (40) is a stand for installing a plurality of pest control modules (31) together at a predetermined location in the indoor unit (20).

[0062] The mounting base (40) is configured to hold multiple pest control modules (31) in a parallel position with spacing between them, and to allow air to circulate between the mounting surface (20a) of the pest control unit (30) and the pest control module (31) closest to the mounting surface (20a), and between adjacent pest control modules (31). Specifically, the mounting base (40) has multiple holding parts (41), multiple leg parts (42), and multiple support columns (43).

[0063] Multiple holding parts (41) are arranged parallel to each other with spacing between them in a direction perpendicular to the installation surface (20a) of the pest control unit (30). Multiple legs (42) are provided with spacing between them in the circumferential direction of one of the holding parts (41) located at the end facing the installation surface (20a), and support the holding part (41) in a state where it is lifted above the installation surface (20a).

[0064] Multiple support columns (43) are provided between adjacent holding columns (41), connecting the two holding columns (41) and supporting one holding column (41) with the other holding column (41). Each holding column (41) holds a pest control module (31). The multiple pest control modules (31) are arranged with spacing between them in the thickness direction of the solid pest control agent (32), with the thickness direction of each solid pest control agent (32) corresponding to each other.

[0065] The pest control unit (30) is positioned in the air passage (P1) such that the first end face (32a) and second end face (32b) of each solid pest control agent (32) are aligned with the airflow (shown by dashed lines in Figure 6). Air flows between adjacent pest control modules (31). As a result, each solid pest control agent (32) is gradually consumed by sublimation from its first end face (32a) and second end face (32b). The air flowing through the air passage (P1) is imparted with inhibitory components sublimated from the multiple solid pest control agents (32).

[0066] -Features of Embodiment 2- In this second embodiment of the air conditioning device (1), a pest control unit (30) is provided, which is a combination of multiple pest control module (31). When using pest control modules (31) with the same exposed area from the solid pest control agent (32) housing (34), the amount of inhibitory components volatilized from the pest control unit (30) increases as the number of pest control modules (31) increases. Therefore, the amount of inhibitory components volatilized from the pest control unit (30) can be controlled according to the number of pest control modules (31).

[0067] In this embodiment 2 of the air conditioning device (1), a plurality of pest control modules (31) forming a pest control unit (30) are arranged in the thickness direction of the solid pest control agent (32) with intervals between them. This allows air to circulate between adjacent pest control modules (31), so that the amount of volatilization of inhibitory components corresponding to the number of pest control modules (31) can be ensured while making the pest control unit (30) more compact. In other respects, the same effects as those described in the features of embodiment 1 can be obtained.

[0068] Embodiment 3 As shown in Figures 7 and 8, the pest control unit (30) of the air conditioning device (1) of this embodiment 3 comprises a plurality of solid pest control agents (32) and a storage structure (50). Each of the plurality of solid pest control agents (32) is the same as that of embodiment 1 described above. The storage structure (50) is configured to hold the plurality of solid pest control agents (32) arranged in a matrix in multiple layers. Specifically, the storage structure (50) has a plurality of tray sections (51), a plurality of legs (42), and a support column section (43).

[0069] Multiple tray sections (51) are arranged parallel to each other with spacing between them, in a direction perpendicular to the installation surface (20a) of the pest control unit (30). Multiple storage sections (34) are provided in a matrix arrangement within each tray section (51). Each storage section (34) is formed in a concave shape with one side open. A bottom opening (52) is formed on the bottom surface of each storage section (34). Each storage section (34) contains a solid pest control agent (32). In this embodiment, the entire solid pest control agent (32) is placed inside the storage section (34). Each storage section (34) receives the solid pest control agent (32) through the peripheral portion of the bottom opening (52).

[0070] Multiple legs (42) are provided at intervals from each other in the circumferential direction of one of the tray sections (51) located at one end on the installation surface (20a) side, supporting the tray section (51) in a state where it is lifted above the installation surface (20a) of the pest control unit (30). Multiple support columns (43) are provided between adjacent tray sections (51), connecting the two tray sections (51) and supporting one tray section (51) on the other.

[0071] Each solid pest control agent (32) and the storage section (34) that houses the solid pest control agent (32) constitute a pest control agent module (31). That is, the pest control agent unit (30) has multiple stages of module groups (MG) in which multiple pest control agent modules (31) are arranged in a matrix. Multiple pest control agent modules (31) that make up adjacent module groups (MG) are arranged with a gap between them in the thickness direction of the solid pest control agent (32), with the thickness direction of each solid pest control agent (32) corresponding to each other.

[0072] The pest control unit (30) is positioned in the air channel (P1) such that the first end face (32a) and second end face (32b) of the solid pest control agent (32) of each module group (MG) are aligned with the airflow (shown by dashed lines in Figures 7 and 8). Air flows between adjacent module groups (MG). Therefore, each solid pest control agent (32) is exposed to air at its first end face (32a) and second end face (32b), and is gradually consumed by sublimation from the first end face (32a) and second end face (32b). The air flowing through the air channel (P1) is contaminated with inhibitory components sublimated from multiple solid pest control agents (32) for each module group (MG).

[0073] -Features of Embodiment 3- In this embodiment 3 of the air conditioning device (1), multiple modules (MG) are arranged in a matrix, with each module being a pest control unit (30). This configuration allows for an even greater increase in the amount of inhibitory components released from the pest control unit (30) compared to the pest control unit (30) of embodiment 2. This is advantageous for inhibiting the activity of insects (I) in the target space (S) and controlling the insects (I). Other effects can be obtained that are similar to those described in the features of embodiments 1 and 2.

[0074] Embodiment 4 As shown in Figure 9, the pest control unit (30) of this embodiment 4 of the air conditioning device (1) comprises a plurality of solid pest control agents (32) and a containment structure (50). Each of the plurality of solid pest control agents (32) is the same as that of embodiment 1 described above. The containment structure (50) is configured to hold the plurality of solid pest control agents (32) arranged in a matrix in multiple stages and to form a meandering internal flow path (P2). Specifically, the containment structure (50) has a plurality of tray sections (51) and a pest control agent casing (53).

[0075] The pest control agent casing (53) houses a plurality of tray sections (51). The pest control agent casing (53) is formed in the shape of a rectangular box. The pest control agent casing (53) has a bottom wall (53a), a top wall (53b), a first side wall (53c), a second side wall (53d), a third side wall, and a fourth side wall. The bottom wall (53a) and the top wall (53b) are arranged opposite each other. The first side wall (53c) and the second side wall (53d) are arranged opposite each other. Although not shown, the third side wall and the fourth side wall are arranged opposite each other.

[0076] The bottom wall (53a) of the pest control agent casing (53) is fixed to the installation surface (20a) of the pest control agent unit (30). The first side wall (53c) faces the upstream side of the airflow in the air passage (P1). An inlet (54) is provided in the portion of the first side wall (53c) closest to the bottom wall (53a). The inlet (54) is an opening for allowing air to flow into the pest control agent casing (53). The second side wall (53d) faces the downstream side of the airflow in the air passage (P1). An outlet (55) is provided in the portion of the second side wall (53d) closest to the top wall (53b). The outlet (55) is an opening for allowing air to flow out from inside the pest control agent casing (53).

[0077] Multiple tray sections (51) are arranged parallel to each other with spacing between them, in a direction perpendicular to the installation surface (20a) of the pest control unit (30). Each tray section (51) is configured in the same manner as in Embodiment 3 above and has multiple storage sections (34) arranged in a matrix. Each storage section (34) stores a solid pest control agent (32). Each solid pest control agent (32) and the storage section (34) that stores the solid pest control agent (32) constitute a pest control module (31). That is, the pest control unit (30) has multiple stages of module groups (MG) in which multiple pest control modules (31) are arranged in a matrix.

[0078] Multiple tray sections (51) are alternately supported by the first side wall (53c) and the second side wall (53d). Of two adjacent pairs of tray sections (51), one tray section (51) is supported by the first side wall (53c) with a gap between it and the second side wall (53d), while the other tray section (51) is supported by the second side wall (53d) with a gap between it and the first side wall (53c). These multiple tray sections (51) partition the inside of the pest control agent casing (53). As a result, an internal flow path (P2) is formed inside the pest control agent casing (53). The internal flow path (P2) extends in a meandering manner from the bottom wall (53a) towards the top wall (53b), on the side of the first side wall (53c) and the side of the second side wall (53d).

[0079] An inlet (54) is located at one end of the internal flow path (P2), and an outlet (55) is located at the other end of the internal flow path (P2). In the pest control unit (30), as shown by the dashed arrow in Figure 9, air flowing through the air flow path (P1) of the indoor unit (20) flows into the inside of the pest control casing (53) from the inlet (54) and flows in a meandering manner through the internal flow path (P2). The air flowing through the internal flow path (P2) is contaminated with inhibitory components volatilized from the multiple solid pest control agents (32) held in each tray section (51). The air containing the inhibitory components then flows out from the outlet (55) of the pest control casing (53) into the air flow path (P1) of the indoor unit (20).

[0080] -Features of Embodiment 4- In this embodiment 4's air conditioning device (1), multiple modules (MG) are arranged in a matrix, with each module being a pest control unit (30). This configuration allows for an even greater increase in the amount of inhibitory components released from the pest control unit (30), similar to embodiment 3. Other effects can be obtained that are similar to those described in embodiments 1 to 3.

[0081] Embodiment 5 As shown in Figures 10 and 11, the pest control unit (30) of the air conditioning device (1) of this embodiment 5 comprises a plurality of solid pest control agents (32) and a housing structure (50). Each of the plurality of solid pest control agents (32) is the same as that of embodiment 1 described above. The housing structure (50) is configured to connect multiple sets of pest control modules (31), each holding a pair of solid pest control agents (32) in a V-shape, in series, and to form internal flow channels (P2) for airflow on both end faces of each solid pest control agent (32). Specifically, the housing structure (50) comprises a plurality of holding blocks (58).

[0082] Each of the retaining blocks (58) is a hollow member formed in the shape of an isosceles triangle. The base of each retaining block (58) constitutes an opening (58c) that opens the internal space of the retaining block (58). Each retaining block (58) has a first wall (58a) and a second wall (58b). The first wall (58a) and the second wall (58b) are equilateral side walls of the retaining block (58). Both the first wall (58a) and the second wall (58b) constitute a containment section (34) for containing the solid pest control agent (32). A containment hole (35) is formed in both the first wall (58a) and the second wall (58b).

[0083] A solid pest control agent (32) is fitted into the containment hole (35). In this embodiment, the entire solid pest control agent (32) is placed inside the containment hole (35). The retaining block (58) includes an inner circumferential surface (34a) facing inward into the containment hole (35). Each inner circumferential surface (34a) of the retaining block (58) has a shape corresponding to the circumferential surface of the solid pest control agent (32) and defines the containment hole (35). Each inner circumferential surface (34a) of the first wall portion (58a) and the second wall portion (58b) covers the circumferential surface (32c) of the solid pest control agent (32) from the outside so as to contact its circumferential surface (32c). In this embodiment, each inner circumferential surface (34a) of the retaining block (58) is in contact with the entire circumferential surface (32c) of the solid pest control agent (32).

[0084] The space between the inner circumferential surface (34a) of the retaining block (58) and the circumferential surface (32c) of the solid pest control agent (32) is sealed. Contact of the circumferential surface (32c) of the solid pest control agent (32) with air is restricted by the frame (33). This restricts sublimation from the circumferential surface (32c) of the solid pest control agent (32). The retaining block (58) exposes the first end surface (32a) of the solid pest control agent (32) through an opening at one end of the containment hole (35), and the second end surface (32b) of the solid pest control agent (32) through an opening at the other end of the containment hole (35). An inlet (54) is formed at the apex of the retaining block (58). This is an opening for allowing air to flow into the retaining block (58).

[0085] Each retaining block (58) and the two solid pest control agents (32) housed in the retaining block (58) constitute a pest control module (31). That is, a pest control unit (30) comprises multiple pest control modules (31). The multiple pest control modules (31) are connected in series with each other. In adjacent pest control modules (31), the apex portion of the retaining block (58) of one pest control module (31) is inserted into the interior of the retaining block (58) of the other pest control module (31).

[0086] Multiple control agent modules (31) are arranged such that the solid control agents (32) held in the first wall portion (58a) correspond to each other, and the solid control agents (32) held in the second wall portion (58b) correspond to each other, with spacing between adjacent control agent modules (31) in the thickness direction of the solid control agents (32). Gaps (59) that allow air to circulate are formed between the first wall portions (58a) and the second wall portions (58b) of adjacent control agent modules (31). An internal flow path (P2) including an inlet (54) and gaps (59) is formed inside the control agent module (31).

[0087] The pest control unit (30) is positioned in the air passage (P1) such that the first end face (32a) and the second end face (32b) of the solid pest control agent (32) are aligned with the airflow. The pest control module (31) located at one end of the pest control unit (30) has an exposed portion forming the apex angle of the holding block (58). The inlet (54) of the pest control module (31) at that end faces the upstream side of the airflow in the air passage (P1). The open portion (58c) of the pest control module (31) located at the other end of the pest control unit (30) faces the downstream side of the airflow in the air passage (P1).

[0088] In the pest control unit (30), as shown by the dashed arrow in Figure 10, the air flowing through the air passage (P1) of the indoor unit (20) flows along the outer surface of the pest control unit (30) and also flows into the interior of the pest control module (31) at one end from the inlet (54), and flows through the internal passage (P2), which includes each pest control module (31) on the downstream side, branching out as it goes. The air flowing on the outer surface of the pest control unit (30) and in the internal passage (P2) is imparted with inhibitory components volatilized from the solid pest control agent (32) held in the holding block (58). Air that has been treated with the inhibitory component in the internal flow path (P2) flows out into the air flow path (P1) of the indoor unit (20) from between adjacent first wall portions (58a) and between adjacent second wall portions (58b) on the outer circumference of the pest control unit (30) and from the open portion (58c) of the pest control module (31) at the other end.

[0089] Multiple such pest control units (30) may be combined and installed in the air passage (P1). As shown in Figure 12, multiple pest control units (30) may be stacked vertically in a direction perpendicular to the installation surface (20a) so that they are arranged in parallel to each other. Alternatively, as shown in Figure 13, multiple pest control units (30) may be arranged in a line along the airflow in the air passage (P1) so that they are arranged in series to each other. In addition, multiple pest control units (30) may be arranged in a direction intersecting the airflow in the air passage (P1) so that they are arranged in parallel to each other.

[0090] Other embodiments In Embodiment 1 described above, the entire solid pest control agent (32) is placed inside the frame (33), but this is not the only possible configuration. For example, as shown in Figure 14, in the initial state of the pest control agent unit (30), both ends of the solid pest control agent (32) may protrude from the frame (33) such that the first end face (32a) and the second end face (32b) of the solid pest control agent (32) are located outside the frame (33), or one end of the solid pest control agent (32) may protrude from the frame (33) such that only the first end face (32a) or the second end face (32b) of the solid pest control agent (32) is located outside the frame (33). This is also true for the relationship between the frame (33) and the solid pest control agent (32) in Embodiment 2 described above, and for the relationship between the housing (34) and the solid pest control agent (32) in Embodiments 3 to 5 described above.

[0091] In Embodiment 1 described above, the frame (33) is designed to expose both the first end face (32a) and the second end face (32b) of the solid pest control agent (32), but it is not limited to this. For example, as shown in Figure 15, the frame (33) may have one end closed, exposing only the first end face (32a) of the solid pest control agent (32). Also, the frame (33) does not have to be a completely closed loop. The frame (33) may be formed in a partially open shape, such as a C-shape in plan view, exposing the circumferential surface (32c) of the solid pest control agent (32) in a part of its circumferential direction. In this case, for example, the pest control agent module (31) is positioned so that the open portion of the frame (33) faces downstream in the airflow of the air passage (P1). These points are also true for the frame (33) in Embodiment 2 described above, and for the housing (34) in Embodiments 3 to 5 described above. In short, the housing portion (34) should include an inner circumferential surface (34a) that exposes at least the first end surface (32a) of the solid pest control agent (32) and covers the circumferential surface (32c) from the outside so as to be in contact with the circumferential surface of the solid pest control agent (32).

[0092] In embodiments 1 to 5 described above, the first end face (32a) and the second end face (32b) of the solid pest control agent (32) are assumed to be formed on flat surfaces, but the invention is not limited to this. One or both of the first end face (32a) and the second end face (32b) of the solid pest control agent (32) may be formed on non-flat surfaces such as convex or concave surfaces.

[0093] In embodiments 1 to 5 described above, the solid control agent (32) was assumed to be an inhibitor that inhibits the activity of insect (I), but it is not limited to this. The solid control agent (32) may be a repellent that exhibits an insect-repelling effect, consisting of a sublimable substance containing a repellent component that insect (I) instinctively dislikes as a control component. Alternatively, the solid control agent (32) may be an insecticide that exhibits an insecticidal effect, consisting of a sublimable substance containing an insecticidal component that acts on the nervous system of insect (I) as a control component. The solid control agent (32) only needs to be composed of a sublimable substance containing a control component that is effective in controlling insect (I).

[0094] As shown in Figure 16, the pest control unit (30) may be positioned upstream of the indoor heat exchanger (22) in the air passage (P1), for example, near the intake port (24).

[0095] The indoor unit (20) is described as being configured as a ceiling-mounted type, but is not limited to this. The indoor unit (20) may be wall-mounted, floor-standing, or of other types. Furthermore, the air conditioning system (1) on which the pest control unit (30) is installed may be an air purifier, ventilation system, humidifier, etc. In addition, the pest control unit (30) may be configured as an independently driveable device equipped with a fan, or it may be installed in the target space (S) without a fan.

[0096] While embodiments and variations have been described above, it will be understood that a variety of modifications to the form and details are possible without departing from the spirit and scope of the claims. Furthermore, these embodiments and variations may be combined or substituted as appropriate, as long as they do not impair the functions covered by this disclosure.

[0097] Furthermore, the designations "First," "Second," etc., mentioned above are used to distinguish the terms to which those designations are attached, and do not limit the number or order of those terms. [Industrial applicability]

[0098] As described above, this disclosure is useful for air conditioning systems and pest control modules. [Explanation of Symbols]

[0099] 1. Air conditioning system P1 Airflow channel 22 Indoor heat exchanger (heat exchanger) 23 Indoor fan (fan) 30 pest control unit 31 Pest Control Module 32 Solid pest control agents 32a 1st end face 32b 2nd end face 32c circumferential surface 34 Storage Unit 34a Inner surface

Claims

1. Equipped with a pest control module (31), The pest control module (31) comprises a solid pest control agent (32) made of a sublimable substance containing a pest control component for controlling insects, and a housing section (34) for housing the solid pest control agent (32). The solid pest control agent (32) has a first end face (32a) and a second end face (32b) that form both end faces in the thickness direction, and a circumferential surface (32c) that extends in the thickness direction so as to connect the periphery of the first end face (32a) and the periphery of the second end face (32b), The housing portion (34) includes an inner circumferential surface (34a) that exposes the first end surface (32a) and covers the circumferential surface (32c) from the outside so as to contact the circumferential surface of the solid pest control agent (32). Air conditioning system.

2. In the air conditioning system according to claim 1, It has an air passage (P1) through which air supplied to the target space (S) flows, The pest control module (31) is positioned in the air passage (P1) such that the first end face (32a) is aligned with the airflow. Air conditioning system.

3. In the air conditioning system according to claim 2, The aforementioned air passage (P1) is provided with a heat exchanger (22) and a fan (23) that transports air so as to pass through the heat exchanger (22). The pest control module (31) is positioned downstream of the heat exchanger (22) in the air passage (P1). Air conditioning system.

4. In the air conditioning system according to claim 2, The housing portion (34) exposes the second end face (32b), Air conditioning system.

5. In the air conditioning system according to claim 2, The cross-section of the solid pest control agent (32) in a direction perpendicular to the thickness direction has the same shape and dimensions between the first end face (32a) and the second end face (32b). Air conditioning system.

6. In the air conditioning system according to claim 2, When the solid pest control agent (32) is consumed to half its initial volume, the rate of change in the exposed area of ​​the solid pest control agent (32) from the container (34) is 10% or less. Air conditioning system.

7. In the air conditioning system according to claim 2, The inner circumferential surface of the housing portion (34) is in contact with the circumferential surface (32c) over the entire circumference of the solid pest control agent (32). Air conditioning system.

8. In the air conditioning system according to claim 7, The inner circumferential surface (34a) of the housing portion (34) is in contact with the entire circumferential surface (32c) of the solid pest control agent (32). Air conditioning system.

9. In the air conditioning system according to claim 1, The system comprises a pest control unit (30) in which multiple pest control modules (31) are combined, Air conditioning system.

10. In the air conditioning system according to claim 9, The plurality of pest control modules (31) forming the pest control unit (30) are arranged with their respective thickness directions corresponding to each other, and are spaced apart from each other in the thickness direction of the solid pest control agent (32). Air conditioning system.

11. A pest control module used in the air conditioning system (1) described in claim 1, In the aforementioned air conditioning device (1), the air passage (P1) through which the air supplied to the target space (S) flows is arranged, Pest control module.

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