Air conditioning device

Abstract

The purpose of the present invention is to reduce air loss inside a housing, ensure the amount of blown air, and improve the operability of an air-conditioning device without impeding the miniaturization of the air-conditioning device. Provided is an air-conditioning device (1) in which a refrigerant circuit including a compressor (20), a heater (40), a pressure reduction unit (70), and a cooler (30) is housed in a housing (10) having, on the same surface, a blow-out opening (12) for blowing out air cooled by the cooler to the outside thereof, and an operation panel for receiving an operation performed on the air-conditioning device, a center line (OV) extending in the air flow direction of the blow-out port is offset toward the opposite side of the operation panel in the width direction of the cooler with respect to a center line (OE) extending in the air flow direction of the cooler.

Description

Technical Field

[0001] The invention relates to an air conditioning device. Background Art

[0002] Conventionally, there is known a small air conditioner that houses a set of equipment required for air conditioning such as equipment constituting a refrigerant circuit (compressor, condenser, evaporator, pressure reducer, etc.), a blower, and a control device for controlling them in a housing.

[0003] As an example of such an air conditioner, Patent Document 1 discloses a device that houses internal components including a compressor in a housing and blows out cold air through an exhaust hose provided at an air vent of the air conditioner outside the housing via an exhaust hose adapter. Prior art literature Patent Literature

[0004] Patent Document 1: China Utility Model Announcement No. 203421776 Summary of the invention Technical problem to be solved by the invention

[0005] However, the above-mentioned small air-conditioning device is a device installed in a relatively narrow and limited space. Due to the requirement for further miniaturization, the layout changes of the equipment housed in the frame, the layout changes of the blow-out port, air inlet, switch, and various operation buttons installed in the frame are restricted.

[0006] Generally speaking, in an air conditioning device, in order to ensure the air volume of the temperature-regulated air, it is preferred to arrange the air outlet and the heat exchanger so that the center line of the air supply direction of the air outlet provided in the frame and the center line of the air supply direction of the heat exchanger inside the frame are located on the same straight line. In addition, in view of the operability of the air conditioning device, it is preferred to ensure an area in the frame that can be used as an operation panel for concentrating switches or various operation buttons in one place.

[0007] However, the miniaturization of the air conditioner, the configuration of the heat exchanger and the blow-out port as described above, and the securing of the configuration area of ​​the operation panel are in a relationship that requires a trade-off. That is, if the air conditioner is miniaturized and the heat exchanger and the blow-out port are configured as described above, it is difficult to secure the configuration area of ​​the operation panel. If the positional relationship between the heat exchanger and the blow-out port is prioritized, for example, switches or various buttons provided outside the housing need to be separately configured, and the operability of the air conditioner will be reduced.

[0008] The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce wind loss inside a housing and ensure a blown air volume without hindering miniaturization of an air conditioner, and to improve operability of the air conditioner. Technical solutions adopted to solve technical problems

[0009] An air-conditioning device of one embodiment of the present invention accommodates a refrigerant circuit including a compressor, a heater, a pressure reducing section and a cooler in a frame, wherein the frame has an air outlet and an operation panel on the same plane, the air outlet blows out air cooled by the cooler to the outside of the frame, the operation panel receives operations performed on the air-conditioning device, and a center line extending in the air circulation direction of the air outlet is offset to the opposite side of the operation panel in the width direction of the cooler relative to a center line extending in the air circulation direction of the cooler. Effects of the Invention

[0010] According to the present invention, it is possible to reduce wind loss inside a housing and ensure a sufficient amount of blown air without hindering the miniaturization of the air conditioner, and to improve the operability of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a perspective view showing the appearance of the air conditioning apparatus according to the embodiment of the present invention. Figure 2 It is a perspective view showing a schematic internal structure of the air conditioning apparatus according to the embodiment of the present invention. Figure 3 It is a front view showing a schematic structure of the interior of the air conditioning apparatus according to the embodiment of the present invention. Figure 4 yes Figure 3 AA section view. Figure 5 yes Figure 3 BB cross-sectional view. Figure 6 is Figure 3 The AA cross-sectional view is a reference diagram showing the flow of air. Figure 7 is Figure 3 A reference diagram showing the flow of air in the BB cross-sectional view. DETAILED DESCRIPTION

[0012] Hereinafter, the mode for implementing the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals denote parts with the same functions, and repeated descriptions in the drawings will be omitted as appropriate.

[0013] Figures 1 to 7Schematic structure of the air conditioner 1 of the present embodiment is shown. The air conditioner 1 includes a housing 10, a compressor 20 accommodated in the housing 10, a cooler (evaporator) 30, a heater (condenser) 40, a first blower 50, a second blower 60, a pressure reducer 70, and a control device 80. The compressor 20, the cooler 30, the heater 40, and the pressure reducer 70 are connected by refrigerant pipes 92 to 94, and constitute a refrigerant circuit for circulating the refrigerant.

[0014] exist Figures 1 to 7 In the air conditioning device 1 shown, the air passes through the inside of the cooler 30 and the heater 40 and flows along the front-to-back direction of the air conditioning device 1. That is, in the air conditioning device 1, the front-to-back direction of the air conditioning device 1 becomes the flow direction of the air in the cooler 30 and the heater 40. The air is circulated from the back to the front with respect to the cooler 30, and the air is circulated from the front to the back with respect to the heater 40, thereby causing the air passing through the cooler 30 and the heater 40 to exchange heat with the refrigerant.

[0015] (About the layout outside the frame) like Figure 1 , Figure 3 As shown, on the front of the frame 10, an operation panel 11 is provided at a position corresponding to the storage position of the control device 80 (described later), and a blow-out port 12 is provided in a manner corresponding to a position adjacent to the operation panel 11 and the storage position of the cooler 30, and corresponding to the blow-out opening 31 of the duct 303 (described later). That is, the operation panel 11 and the blow-out port 12 are arranged in the same plane of the frame. The plane including the operation panel 11 and the blow-out port 12 is inclined in a manner such that the blow-out port is directed upward from the horizontal direction. In addition, an air intake port 13 is provided at a position corresponding to the storage position of the second blower 60.

[0016] On the back side of the housing 10 , an air intake port (not shown) is provided at a position corresponding to the storage position of the first blower 50 , and an air exhaust port (not shown) is provided at a position corresponding to the storage position of the heater 40 .

[0017] (About the layout inside the frame) Next, the layout of each device in the housing 10 of the air conditioning device 1 of this embodiment will be described. Figure 2 As shown, in the frame 10 of the air-conditioning device 1, a compressor 20, a heater 40 and a second blower 60 are arranged on the bottom plate 15, and a cooler 30, a first blower 50, a pressure reducer 70 and a control device 80 are arranged above them (upper side in the vertical direction).

[0018] In particular, the pressure reducer 70 is arranged on one side (left side when viewed from the front) of the cooler 30 in a direction perpendicular to the flow direction of the air passing through the cooler 30 and in the horizontal direction (left-right direction when viewed from the front) of the cooler 30, and the compressor 20 is arranged on the other side (right side when viewed from the front) of the cooler 30 and below (vertically below) the cooler 30. In addition, the control device 80 is arranged above the compressor 20 so as to be adjacent to the cooler 30. In addition, the storage tank 22 is arranged in front of the compressor 20.

[0019] More specifically, on the bottom plate 15, when viewed from the front, the compressor 20 is arranged on the right side of the heater 40, and the second blower 60 is arranged in front of the heater 40. The cooler 30 is arranged above the heater 40 and slightly in front of the heater 40 so as to partially overlap the heater 40 in the vertical direction.

[0020] When viewed from the front, a pressure reducer 70 is arranged on the left side of the cooler 30, a control device 80 is arranged on the right side, and a first blower 50 is arranged on the back side of the cooler 30. A duct 303 connecting the cooler 30 and the blow-out port 12 is provided on the front side of the cooler 30. An opening 31 for blowing connected to the blow-out port 12 of the frame 10 is provided on the front side of the duct 303. The details of the duct 303 and the positional relationship of the cooler 30, the duct 303, and the blow-out port 12 will be described later.

[0021] A refrigerant inlet 32 ​​is provided on the upper surface of the cooler 30 on one side (the left side when viewed from the front) of the cooler 30, i.e., on the side of the pressure reducer 70, for the refrigerant that has passed through the pressure reducer 70 to flow into the cooler 30. In addition, a refrigerant outlet 33 is provided on the upper surface of the cooler 30 at a position further rearward than the refrigerant inlet 32 ​​for the refrigerant that has passed through the cooler 30 and returned to the compressor 20.

[0022] That is, in the cooler 30, the refrigerant inlet 32 ​​is provided so that the refrigerant flows in from the upper surface of the cooler 30, and the refrigerant outlet 33 is provided so that the refrigerant flows out from the upper surface of the cooler 30. The refrigerant outlet 33 and the compressor 20 are connected through the refrigerant pipe 94. The refrigerant pipe 94 is drawn from the refrigerant outlet 33 to the back side of the control device 80, passes through the lower side of the control device 80, and is connected to the front side of the compressor 20.

[0023] A refrigerant inlet 42 for high-pressure refrigerant discharged from the compressor 20 to flow into is provided on the upper surface of the heater 40, on one side of the heater 40 (the left side when viewed from the front) and on the rear side of the heater 40. In addition, a refrigerant outflow port 43 is provided on the upper surface of the heater 40, at a position further forward than the refrigerant inlet 42, for passing through the heater 40 and flowing out toward the pressure reducer 70.

[0024] That is, in the heater 40 , the coolant inlet 42 is provided so that the coolant flows in from the upper surface of the heater 40 , and the coolant outlet 43 is provided so that the coolant flows out from the upper surface of the heater 40 . The compressor 20 is connected to the refrigerant inlet 42 of the heater 40 through a refrigerant pipe (not shown), the refrigerant outlet 43 is connected to the pressure reducer 70 through a refrigerant pipe 92, and the pressure reducer 70 is connected to the refrigerant inlet 32 ​​of the cooler 30 through a refrigerant pipe 93. Both the refrigerant pipe 92 and the refrigerant pipe 93 are located on the pressure reducer 70 side relative to the cooler 30.

[0025] (Regarding the flow of refrigerant) In the refrigerant circuit connected as described above, the refrigerant is compressed by the compressor 20 and discharged as a high-pressure gas refrigerant. The high-pressure gas refrigerant passes through the refrigerant pipe 91 and flows into the heater 40 via the refrigerant inlet 42, and dissipates heat by exchanging heat with the air blown from the second air supply unit 60 and passing through the heater 40.

[0026] The high-pressure refrigerant flowing out of the refrigerant outlet 43 of the heater 40 passes through the refrigerant pipe 92 and flows into the pressure reducer 70, is reduced in pressure by the pressure reducer 70 and expands to become a low-pressure refrigerant. The refrigerant that has become low-pressure in the pressure reducer 70 passes through the refrigerant pipe 93 and flows into the cooler 30 from the refrigerant inlet 32. The low-pressure refrigerant flowing into the cooler 30 absorbs heat by heat exchange with the air blown by the first air supply unit 50 and passing through the cooler 30, and flows out through the refrigerant outlet 33 of the cooler 30. The refrigerant flowing out of the cooler 30 flows through the refrigerant pipe 94 and returns to the compressor 20 through the accumulator 22. The refrigerant flowing into the compressor 20 is compressed again, and the above cycle is repeated.

[0027] (About piping and the configuration of coolers and piping) As described above, the duct 303 is provided between the cooler 30 and the blow-out port 12. The cooler 30 is formed by accommodating the cooler main body 301 in the cooler shell 302, and the duct 303 is composed of a first duct member 304 continuous with the cooler shell 302 and a second duct member 305 detachably provided on the first duct member 304 and having a blow-out opening 31. The duct 303 guides the air cooled by the cooler main body 301 to the blow-out port 12 by installing the second duct member 305 on the first duct member 304 and connecting the blow-out opening 31 provided on the front side of the second duct member 305 to the blow-out port 12.

[0028] like Figure 4 As shown, the center line O of the outlet 12 extending in the air flow direction V With respect to the center line O of the cooler 30 extending in the air flow direction E , in the width direction of the cooler 30 (the direction perpendicular to the air flow direction and the vertical direction relative to the cooler 30), the air outlet 12 is offset to the opposite side of the operation panel 11, that is, the pressure reducer 70 side. In this way, regardless of the position of the air outlet of the cooler 30, the air outlet 12 can be offset to the end, and the configuration area of ​​the operation panel can be ensured. In addition, it is preferable that the center line O of the air outlet 12 V and the center line O extending in the air flow direction of the cooler 30 E The offset D is approximately equal to or less than half of the width of the cooler 30 . Here, it is preferable that the center line O of the cooler 30 extending in the air flow direction E It is a line passing through the center of the heat exchange portion that exchanges heat with the air.

[0029] Furthermore, in order to suppress the center line O of the air outlet 12 V and a center line O extending in the air flow direction of the cooler 30 E The wind loss caused by the deviation in the width direction of the cooler 30 is configured as follows in the duct 303 .

[0030] That is, Figure 4 As shown, the duct 303 has a first side wall 341 and a second side wall 342 arranged along the vertical direction. The first side wall 341 is located on the operation panel 11 side relative to the blowing opening 31 when viewed from the front, is inclined toward the center of the air flow path, and is continuous with the base of the blowing opening 31. The second side wall 342 is located on the opposite side of the operation panel 11 sandwiching the blowing opening 31, that is, on the pressure reducer 70 side, and is continuous with the base of the blowing opening 31 by being inclined toward the outside of the air flow path.

[0031] The inclination angle of the second side wall relative to the air circulation direction is greater than the inclination angle of the first side wall 341 relative to the air circulation direction. The second side wall 342 is arranged in the air circulation path at a position closer to the upstream side of the air circulation direction than the first side wall 341.

[0032] The center line O extending in the air flow direction of the air outlet 12 is V and a center line O extending in the air flow direction of the cooler 30 E The offset in the width direction of the cooler 30 can cause a decrease in the air volume at the blow-out port 12 due to a change in the cross-sectional area of ​​the air circulation path, but the reduction in air volume can be suppressed by making the inclination angle of the second side wall relative to the air circulation direction greater than the inclination angle of the first side wall 341 relative to the air circulation direction. Furthermore, by providing the second side wall 342 at a position further upstream in the air flow direction than the first side wall 341 , it is also possible to suppress a decrease in the air volume at the air outlet due to a change in the cross-sectional area of ​​the air flow path.

[0033] In addition, a third side wall 343 is provided at the lower portion of the blowing opening 31 on the front side of the duct 303. Figure 5 As shown, the third side wall 343 connects the bottom to the bottom of the blowing opening 31, and guides the air flowing from the bottom of the cooler 30 to the blowing outlet 12 through the blowing opening 31. V The third side wall 343 is inclined upward in the horizontal direction so that the air cooled by the cooler 30 is blown upward in the horizontal direction. Therefore, the third side wall 343 is also inclined upward in the horizontal direction.

[0034] By configuring in this way, the cooler 30 introduces air supplied from the first blower 50 through the air intake opening (not shown) of the cooler shell 302, and causes the inhaled air to exchange heat with the heat medium in the cooler body, thereby sending out cold air from the blow-out opening 31 provided in the duct 303 to the blow-out port 12 provided in the frame 10.

[0035] At this time, if Figure 6 and Figure 7 As shown, the air on the operation panel side of the air out of the cooler 30 is guided by the first side wall 341 and guided to the blowing opening 31. In addition, the air on the pressure reducer 70 side of the air out of the cooler 30 is guided by the second side wall 342 and guided to the blowing opening 31.

[0036] Next, the air flowing downward in the duct 303 among the air coming out of the cooler 30 is guided by the third side wall 343 and guided to the blowing opening 31. In this way, the air coming out of the cooler 30 is guided by the first side wall 341, the second side wall 342, and the third side wall 343, thereby advancing toward the pressure reducer 70 side and the upper side of the cooler 30 when viewed from the front, and is guided to the blowing outlet 12 through the blowing opening 31.

[0037] Similarly, the heater 40 is configured by accommodating a heater main body 401 in a heater housing 402 (see Figure 5 ). The heater 40 takes in the air blown from the second blower 60 through the air intake opening of the heater case 402 , exchanges heat with the heat medium in the heater body 401 , and sends the air out through the exhaust opening 41 and the exhaust port 14 of the housing 10 .

[0038] As described above, according to the present embodiment, by making the center line O extending in the air flow direction of the air outlet 12 V and a center line O extending in the air flow direction of the cooler 30 E By arranging the air outlet 12 at the end of the surface of the housing 10 in an offset manner, it is possible to ensure an area for arranging the operation panel, thereby not hindering the miniaturization of the air conditioner.

[0039] Furthermore, since the first side wall 341 , the second side wall 342 , and the third side wall 343 are provided on the duct 303 , the air discharged from the cooler 30 is efficiently guided to the air outlet 12 , thereby reducing the wind loss inside the frame and ensuring the air volume.

[0040] Furthermore, by concentrating various switches required for operating the air conditioner on the operation panel 11 and concentrating the operation panel 11 and the air outlet 12 together on the same surface of the housing 10 , the operability of the air conditioner can be improved.

[0041] As mentioned above, the embodiment of the present invention is described in detail with reference to the drawings, but the specific structure is not limited to the above-mentioned embodiment, and even the design change etc. which do not deviate from the scope of the gist of the present invention are also included in the present invention. Explanation of symbols

[0042] 1: air conditioning device, 10: frame, 11: operation panel, 12: air outlet, 13: suction port, 14: exhaust port, 20: compressor, 30: cooler (evaporator), 31: opening for blowing, 40: heater (condenser), 41: opening for exhaust, 70: pressure reducer, 80: control device, 91-94: refrigerant piping, 301: cooler body, 302: cooler shell, 303: pipe, 304: first pipe member, 305: second pipe member, 341: first side wall, 342: second side wall, 343: third side wall; D: offset.

Claims

1. An air conditioning device, The air conditioning device contains a refrigerant circuit including a compressor, a heater, a decompression unit, and a cooler in a frame, and is characterized in that: The frame has an air outlet and an operation panel on the same surface, the air outlet blows out the air cooled by the cooler to the outside of the frame, and the operation panel receives an operation performed on the air conditioner. A center line of the air outlet extending in the air flow direction is offset in a width direction of the cooler to the opposite side of the operation panel relative to a center line of the cooler extending in the air flow direction.

2. The air conditioning device according to claim 1, characterized in that: A duct is included, the duct connecting the cooler and the blow-out port and forming an air flow path for guiding the air cooled by the cooler to the blow-out port, The pipeline has: a first side wall, the first side wall being a side wall arranged along a vertical direction, being located on the operation panel side, and being inclined toward a center of the air flow path; as well as a second side wall, the second side wall being a side wall arranged along the vertical direction, being located on the opposite side of the operation panel sandwiching the blow-out port, and being inclined toward the outside of the air flow path, An inclination angle of the second side wall relative to the air circulation direction is greater than an inclination angle of the first side wall relative to the air circulation direction.

3. The air conditioning device according to claim 2, characterized in that: The second side wall is provided in the air flow path at a position closer to the upstream side in the air flow direction than the first side wall.

4. The air conditioning device according to claim 1, characterized in that: The center line of the air outlet is inclined so that the air cooled by the cooler is blown upward in the horizontal direction.

5. The air conditioning device according to claim 4, characterized in that: A surface of the housing including the air outlet and the operation panel is inclined upward.

6. The air conditioning device according to claim 1, characterized in that: A duct is included, the duct connecting the cooler and the blow-out port and forming an air flow path for guiding the air cooled by the cooler to the blow-out port, The duct comprises a third side wall, The third side wall connects the bottom of the duct and the lower part of the blow-out port, and guides the air flowing below the cooler in the vertical direction to the blow-out port.

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