WO2020170327A1

WO2020170327A1 - Heat source machine and refrigeration cycle device

Info

Publication number: WO2020170327A1
Application number: PCT/JP2019/006029
Authority: WO
Inventors: 敬英田所; 勝幸山本; 加藤　康明
Original assignee: 三菱電機株式会社
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2020-08-27
Also published as: EP3929494A4; JPWO2020170327A1; EP3964755B1; ES2968614T3; EP3929494B1; EP3964756A1; EP3964755A1; JP7204872B2; EP3929494A1

Abstract

A heat source machine (1) is provided with: a blower chamber (6) having a fan (3) accommodated therein; a first machine chamber (7) having a compressor (201) accommodated therein; a second machine chamber (8) having a control unit (205) accommodated therein; and a third machine chamber (9) having, accommodated therein, a wiring part (206) that connects the compressor (201) and the control unit (205). The first machine chamber (7) and the second machine chamber (8) are arranged so as to sandwich the blower chamber (6) in a first direction (X) orthogonal to the rotation axis (O) of the fan (3). The third machine chamber (9) is arranged between the first machine chamber (7) and the second machine chamber (8) in the first direction (X) and aligned with the fan (3) in a second direction (Z) orthogonal to the rotation axis (O) and the first direction (X).

Description

Heat source device and refrigeration cycle device

The present invention relates to a heat source device and a refrigeration cycle device.

Conventionally, a heat source unit (outdoor unit) that internally houses a compressor, a heat source side heat exchanger, a fan that blows air to the heat source side heat exchanger, and a drive unit that drives the compressor, a load side heat exchanger, and a load. A refrigeration cycle apparatus including a load unit (indoor unit) that houses a blower that blows air to a side heat exchanger is known.

In Japanese Patent Laid-Open No. 4-177031, there are two machine chambers arranged in front of the left and right ends of the heat source side heat exchanger in the outer box, and the heat source side is arranged between the two machine chambers. A heat source machine is disclosed in which a blower chamber in which a blower for blowing air to a heat exchanger is housed is formed. The machine room has a columnar space. The blower chamber is connected to an inlet and an outlet provided on the outer box. Further, a refrigerant pipe connecting between the two machine rooms is passed to the blower room.

JP-A-4-177031

As described above, in the heat source device in which the two machine chambers sandwiching the blower chamber are provided, in addition to the refrigerant pipe, any connecting member such as electric wiring is blown according to the member accommodated in each machine chamber. Handed over to the room. Since the blower chamber is connected to the outside of the outer box via the suction port and the blowout port, the connecting member is exposed to water, dust, and the like taken into the blower chamber from the outside of the outer box. As a result, there is a risk that abnormalities such as electric leakage and corrosion will occur in the connecting member passed to the blower chamber.

The main object of the present invention is to provide a heat source device in which the risk of occurrence of abnormality such as electric leakage and corrosion in the connection member passed to the blower chamber is reduced as compared with the conventional heat source device.

A heat source machine according to the present invention is a heat source machine that houses a plurality of heat source side components and a blower inside, and at least a blower chamber that houses a blower inside and a first part of the heat source side components inside. A third machine chamber for accommodating the first machine room, a second machine room for accommodating a second part of the heat source side component parts, and a connection member for connecting the first part and the second part inside And a machine room. The first machine room and the second machine room are arranged so as to sandwich the blower chamber in a first direction orthogonal to the rotation axis of the blower, and the third machine room has a second machine room and a second machine room in the first direction. It is arranged between the machine room and the fan in a second direction orthogonal to each of the rotation axis and the first direction.

According to the present invention, it is possible to provide a heat source device in which the risk of occurrence of abnormality such as electric leakage and corrosion in the connection member passed to the blower chamber is reduced as compared with the conventional heat source device.

It is a figure which shows the refrigerating-cycle apparatus which concerns on Embodiment 1. FIG. 3 is a perspective view showing the heat source device according to the first embodiment. It is a perspective view which shows the inside of the outer box of the heat source machine shown by FIG. FIG. 4 is an end view seen from an arrow IV-IV in FIG. 3. FIG. 7 is an end view of the heat source machine according to the second embodiment. It is a perspective view which shows the inside of the outer box of the heat source machine shown by FIG. It is an end view of the heat source machine which concerns on Embodiment 3. It is a perspective view which shows the inside of the outer box of the heat source machine which concerns on Embodiment 4. It is an end view which shows the 3rd wall part of the heat source machine shown by FIG. FIG. 10 is an end view seen from the arrow XX in FIG. 9. It is a perspective view which shows the modification of the heat source machine which concerns on Embodiment 4. It is an end view which shows the 3rd wall part of the heat source machine shown by FIG. FIG. 13 is an end view seen from an arrow XIII-XIII in FIG. 12. It is a perspective view which shows the inside of the outer box of the heat source machine which concerns on Embodiment 5. It is the top view which looked at the heat source machine shown in FIG. 14 from the inlet side. It is an end view of the heat source machine which concerns on Embodiment 6. It is an end view of the heat source machine which concerns on Embodiment 7. It is an end view which shows the modification of the heat source machine which concerns on Embodiment 2. It is a perspective view which shows the modification of the heat source machine which concerns on Embodiment 1.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, for convenience of description, a first direction X, a second direction Z, and a third direction Y which are orthogonal to each other are introduced.

Embodiment 1.
<Structure of refrigeration cycle device>
First, the refrigeration cycle apparatus 200 according to Embodiment 1 will be described with reference to FIG. The refrigeration cycle device 200 includes a refrigerant circuit in which a refrigerant circulates. The refrigerant circuit includes a compressor 201, a heat source side heat exchanger 5, a load side heat exchanger 202, a pressure reducing section 203, and a four-way valve 204. Further, the refrigeration cycle apparatus 200 includes a control unit 205 and a wiring unit 206 as control components for controlling the compressor 201.

The compressor 201 is, for example, an inverter compressor whose rotation speed is inverter-controlled. The heat source side heat exchanger 5 and the load side heat exchanger 202 are provided so as to perform heat exchange between the refrigerant and the air. The decompression unit 203 is, for example, an electronic expansion valve whose opening can be adjusted. The four-way valve 204 has a first state in which the heat source side heat exchanger 5 acts as a condenser and the load side heat exchanger 202 acts as an evaporator, and the heat source side heat exchanger 5 acts as an evaporator and the load side heat exchanger 202 condenses. It is provided so as to switch between a second state that acts as a container. The control unit 205 controls driving of the compressor 201. The control unit 205 is connected to the compressor 201 via a wiring unit 206 as a connecting member. The wiring unit 206 transmits electric power and operation signals from the control unit 205 to the compressor 201. The wiring portion 206 has, for example, a plurality of

wirings

206a and 206b arranged so as to extend along the first direction X and arranged side by side in the third direction Y.

In the refrigeration cycle apparatus 200, the compressor 201, the heat source side heat exchanger 5, the pressure reducing section 203, the four-way valve 204, the control section 205, and the wiring section 206 are housed inside the heat source apparatus 1. Here, the compressor 201, the heat source side heat exchanger 5, the pressure reducing section 203, the four-way valve 204, the control section 205, and the wiring section 206 are referred to as heat source side constituent parts of the refrigeration cycle apparatus 200. The heat source device 1 is arranged, for example, outside a living room. The load-side heat exchanger 202 is housed in the indoor unit 207. The indoor unit 207 is arranged in the living room. The heat source unit 1 and the indoor unit 207 are connected via

refrigerant pipes

208 and 209.

<Structure of heat source machine>
As shown in FIGS. 2 and 4, the heat source machine 1 includes an outer box 2. The outer box 2 forms an outer shell of the heat source device 1, and each member housed in the heat source device 1 is arranged inside the outer box 2. As shown in FIGS. 1, 3 and 4, the heat source device 1 includes a fan 3, a bell mouth 4, a heat source side heat exchanger 5, a motor 11, a support portion 12, The first wall portion 7w, the second wall portion 8w, the third wall portion 9w, the compressor 201, the pressure reducing portion 203, the four-way valve 204, and the control portion 205, and the fan guard 13 arranged outside the outer box 2 are further provided. Prepare The second direction Z is along the vertical direction. The first direction X and the third direction Y are along the horizontal direction, for example. Note that, in FIG. 3, the depressurization unit 203, the four-way valve 204, and the refrigerant pipe forming a part of the refrigerant circuit are not shown.

As shown in FIG. 2, the outer box 2 includes a front plate 2a and a rear plate 2b that extend along the first direction X and the second direction Z and are spaced apart in the third direction Y. Have Further, the outer box 2 has a lower surface plate 2c and an upper surface plate 2d which extend along the first direction X and the third direction Y and are arranged at intervals in the second direction Z. Further, the outer box 2 has

side plates

2e and 2f which extend along the second direction Z and the third direction Y and are arranged at intervals in the first direction X.

As shown in FIG. 2, the front plate 2a is provided with an outlet 2h. The back plate 2b is provided with a suction port (not shown). The opening area of the suction port exceeds the opening area of the outlet 2h. The lower end of the suction port is arranged below the lower end of the air outlet 2h, for example. The upper end of the suction port is arranged, for example, above the upper end of the air outlet 2h. The centers of the intake port and the outlet port 2h are arranged so as to sandwich the fan 3 on the rotation axis O of the fan 3, for example. When the fan 3 rotates, the airflow A (see FIG. 2) along the third direction Y is blown out from the air outlet 2h. Below, regarding the relative positional relationship between the plurality of members in the third direction Y, the inlet side is referred to as the upwind side, and the outlet side is referred to as the leeward side.

As shown in FIGS. 3 and 4, the fan 3 is provided so as to rotate about a rotation axis extending along the third direction Y. The fan 3 is driven by the motor 11. The fan 3 and the motor 11 are supported by the support portion 12. The support portion 12 is fixed to, for example, the lower surface plate 2c and the upper surface plate 2d of the outer box 2. The fan 3, the motor 11, and the support portion 12 form a blower, and are arranged, for example, on the leeward side of the heat source side heat exchanger 5.

As shown in FIG. 4, the bell mouth 4 is arranged so as to be connected to the outlet 2 h of the outer box 2. The bell mouth 4 is arranged so as to surround a portion located on the leeward side of the fan 3. The bell mouth 4 has a wind lower end 4a connected to the front plate 2a of the outer box 2 and a wind upper end 4b arranged closer to the suction port than the wind lower end 4a. The windward end portion 4b is arranged on the leeward side of the windward end portion of the fan 3 and on the windward side of the windward end portion of the fan 3.

As shown in FIG. 1, the fan guard 13 is arranged outside the front plate 2a so as to overlap the air outlet 2h in the third direction Y.

The heat source side heat exchanger 5 is provided so as to exchange heat between the air sucked from the outside to the inside of the heat source device 1 by the fan 3 and the refrigerant circulating in the refrigerant circuit of the refrigeration cycle apparatus 200. The heat source side heat exchanger 5 is arranged, for example, so as to contact the back plate 2b, the bottom plate 2c, the top plate 2d, and the

side plates

2e and 2f. The heat source side heat exchanger 5 is arranged on the windward side of the fan 3, the bell mouth 4, the motor 11, and the support portion 12.

As shown in FIG. 3, the first wall portion 7w, the second wall portion 8w, and the third wall portion 9w are provided inside the outer box 2 with a blower chamber 6, a first machine room 7, and a second machine room. 8 and the third machine room 9 are partitioned. The first wall portion 7w partitions the blower chamber 6 and the first machine chamber 7. The second wall portion 8w partitions the blower chamber 6 and the second machine chamber 8. The third wall portion 9w partitions the blower chamber 6 and the third machine chamber 9.

The first wall portion 7w forms a first machine chamber 7 that is partitioned from the blower chamber 6 and extends along the second direction Z on the side surface plate 2e side of the fan 3 in the first direction X, It is provided. When viewed from the second direction Z, the first wall portion 7w is provided, for example, in a substantially arc shape. The length of the first wall portion 7w in the second direction Z is equal to or greater than the length of the fan 3 in the second direction Z, that is, the outer diameter of the fan 3. The distance between the first wall portion 7w and the YZ plane including the rotation axis O of the fan 3 and extending along the second direction Z and the third direction Y is, for example, constant. Preferably, the distance between the wind upper end of the first wall portion 7w and the YZ plane including the rotation axis O is between the wind lower end portion of the first wall portion 7w and the YZ plane including the rotation axis O. Longer than the distance. More preferably, the distance between the first wall portion 7w and the YZ plane including the rotation axis O becomes shorter in the third direction Y from the windward side to the leeward side. The distance between the first wall portion 7w and the YZ plane including the rotation axis O of the fan 3 is longer than the distance between the wind upper end portion 4b of the bell mouth 4 and the YZ plane.

The second wall portion 8w forms a second machine chamber 8 that is partitioned from the blower chamber 6 and extends along the second direction Z on the side surface plate 2f side of the fan 3 in the first direction X. It is provided. When viewed from the third direction Y, the second wall portion 8w is provided, for example, in a substantially arc shape. The first wall portion 7w and the second wall portion 8w are symmetrical with respect to the rotation axis O. The length of the second wall portion 8w in the second direction Z is equal to or greater than the length of the fan 3 in the second direction Z, that is, the outer diameter of the fan 3. The distance between the second wall portion 8w and the YZ plane is constant, for example. Preferably, the distance between the wind upper end of the second wall 8w and the YZ plane including the rotation axis O is between the wind lower end of the second wall 8w and the YZ plane including the rotation axis O. Longer than the distance. More preferably, the distance between the second wall portion 8w and the YZ plane including the rotation axis O becomes shorter in the third direction Y from the windward side toward the leeward side. The distance between the second wall portion 8w and the YZ plane including the rotation axis O of the fan 3 is longer than the distance between the wind upper end portion 4b of the bell mouth 4 and the YZ plane.

As shown in FIGS. 3 and 4, the third wall portion 9w is separated from the fan 3 in the third direction Y on the lower surface plate 2c side and is partitioned from the blower chamber 6 and extends along the first direction X. It is provided so as to form the third machine room 9. The third wall portion 9w is connected to, for example, the first wall portion 7w, the second wall portion 8w, the front plate 2a, and the lower surface plate 2c. The length of the third wall portion 9w in the first direction X is equal to or greater than the length of the fan 3 in the first direction X, that is, the outer diameter of the fan 3.

The third wall portion 9w has a first surface portion 90 and a second surface portion 91 extending in a direction intersecting with the first surface portion 90. The first surface portion 90 and the second surface portion 91 are connected to, for example, the first wall portion 7w and the second wall portion 8w. The part of the first surface portion 90 located on the windward side and the front body of the second surface portion 91 form the windward side of the third wall portion 9w located on the windward side of the windward upper end portion 4b of the bell mouth 4. ing.

The first surface portion 90 is provided parallel to the rotation axis O of the fan 3. From a different point of view, the first surface portion 90 is provided in parallel with the XY plane extending along the first direction X and the third direction Y. The first surface 90 has a wind lower end 90a and a wind upper end 90b. The wind lower end 90a is connected to the front plate 2a. The wind upper end 90b is connected to the upper end of the second surface 91.

The second surface portion 91 is provided, for example, in parallel with the XZ plane extending along the first direction X and the second direction Z. The angle formed by the first surface portion 90 and the second surface portion 91 with respect to the wind upper end portion 90b is, for example, 90 degrees. The windward upper end portion 90b and the second surface portion 91 of the first surface portion 90 are located on the windward side of the bell mouth 4 and constitute the windward upper end portion of the third wall portion 9w. The second surface portion 91 is arranged on the leeward side of the heat source side heat exchanger 5. The lower end portion of the second surface portion 91 is connected to the lower surface plate 2c.

The distance in the second direction Z between the third wall portion 9w and the XY plane including the rotation axis O of the fan 3 is, for example, constant. In other words, the distance in the second direction Z between the wind upper end of the third wall 9w and the XY plane including the rotation axis O of the fan 3, that is, the wind upper end 90b and the rotation axis O of the fan 3 are included. The distance in the second direction Z from the XY plane is equal to the distance in the second direction Z between the leeward portion of the first surface portion 90 located on the leeward side of the leeward end 90b and the XY plane. The distance in the second direction Z between the leeward portion of the first surface portion 90 and the XY plane including the rotation axis O is between the windward upper end portion 4b of the bell mouth 4 and the XY plane including the rotation axis O. It is longer than the distance in the second direction Z.

The heat source machine 1 includes, in the inside of the outer case 2, a blower chamber 6, a first machine room 7 which is partitioned from the blower chamber 6 by a first wall portion 7w, a second wall portion 8w, and a third wall portion 9w. A second machine room 8 and a third machine room 9 are provided.

The blower chamber 6 faces the front plate 2a, the back plate 2b, the upper plate 2d, the first wall portion 7w, the second wall portion 8w, and the third wall portion 9w. The first machine room 7 faces the front plate 2a, the lower plate 2c, the upper plate 2d, the side plate 2e, and the first wall portion 7w. The second machine room 8 faces the front plate 2a, the lower plate 2c, the upper plate 2d, the side plate 2f, and the second wall portion 8w. The third machine room 9 faces the front plate 2a, the lower plate 2c, and the third wall 9w.

The first machine room 7 and the second machine room 8 are arranged so as to sandwich the blower room 6 in the first direction X. The first machine room 7 and the second machine room 8 are arranged so as to sandwich the fan 3 and the bell mouth 4 in the first direction X, for example. The third machine room 9 connects the first machine room 7 and the second machine room 8 and is arranged side by side with the blower room 6 in the second direction Z. The third machine room 9 is arranged, for example, below the blower room 6, and is connected to one end connected to the lower end of the first machine room 7 and the lower end of the second machine room 8. And the other end. The third machine room 9 is arranged below the fan 3 and the bell mouth 4, for example.

The blower chamber 6 is connected to the outside of the outer box 2 via an intake port and a blowout port. A fan 3, a bell mouth 4, a heat source side heat exchanger 5, a motor 11, and a support portion 12 are housed in the blower chamber 6. A compressor 201, a pressure reducing unit 203, and a four-way valve 204 are housed in the first machine room 7. The control part 205 is accommodated in the second machine room 8. The wiring section 206 is housed in the third machine room 9.

<Effect>
The heat source device 1 includes a blower chamber 6 that houses at least the heat source side heat exchanger 5 and the fan 3, a first machine chamber 7 that houses a compressor 201 as a first component, and a second component as a second component. The second machine room 8 that houses the control unit 205 therein, the third machine room 9 that houses the wiring unit 206 as a connecting member that connects the compressor 201 and the control unit 205, the blower room 6, and the third machine room 9 1st wall part 7w which divides 1 machine room 7, 2nd wall part 8w which divides ventilation room 6 and 2nd machine room 8, 3rd which separates ventilation room 6 and 3rd machine room 9 And a wall portion 9w. The first machine room 7 and the second machine room 8 are arranged so as to sandwich the blower room 6 in the first direction X orthogonal to the rotation axis O of the fan 3. The third machine room 9 connects the first machine room 7 and the second machine room 8 and is arranged side by side with the fan 3 in the second direction Z orthogonal to each of the rotation axis O and the first direction X. Has been done.

In the heat source device 1, since the wiring portion 206 is housed in the third machine room 9 which is separated from the blower chamber 6 by the third wall portion 9w, the risk of occurrence of abnormality such as electric leakage and corrosion in the wiring portion 206 is reduced. Has been done.

Embodiment 2.
As shown in FIGS. 5 and 6, the heat source device 1 according to the second embodiment has basically the same configuration as the heat source device 1 according to the first embodiment, but has a cross section perpendicular to the first direction X. In the point that the windward side of the third wall portion 9w is provided so as to be inclined with respect to the third direction Y.

The first surface portion 90 is provided so as to intersect the XY plane including the rotation axis O. The inclination of the first surface portion 90 with respect to the XY plane including the rotation axis O is constant. The first surface portion 90 is provided in a flat plate shape. The windward side is configured by a partial region of the first surface portion 90 having the windward upper end portion 90b.

The distance L1 in the second direction Z between the windward upper end portion 90b of the third wall portion 9w and the XY plane including the rotation axis O is the distance between the leeward portion and the XY plane including the rotation axis O. It is longer than the distance L2 in the two directions Z. From a different point of view, the distance L1 between the windward upper end portion 90b of the third wall portion 9w and the rotation axis O in the second direction Z is equal to the distance L1 between the leeward portion and the rotation axis O in the second direction Z. It is longer than the distance L2. The distance L2 is longer than the distance L3 in the second direction Z between the wind upper end 4b of the bell mouth 4 and the XY plane including the rotation axis O. The distance between the third wall portion 9w and the XY plane including the rotation axis O becomes shorter in the third direction Y from the windward side to the leeward side.

In the heat source device 1 according to the second embodiment, the air flow in the blower chamber 6 is guided to the third wall 9w and reaches the wind upper end 4b of the bell mouth 4. Therefore, in the heat source device 1 according to the second embodiment, as compared with the heat source device 1 according to the first embodiment, the generation of vortices due to the separation of the airflow in the third wall portion 9w is suppressed, and the energy due to the vortices is suppressed. Loss is reduced. As a result, in the heat source device 1 according to the second embodiment, compared to the heat source device 1 according to the first embodiment, the power consumption during ventilation is reduced, and the pressure fluctuation generated in the blades of the fan 3 is small. Therefore, the noise is reduced.

The width of the wiring 206a located on the leeward side of the wiring portion 206 in the second direction Z may be equal to the width of the wiring 206b located on the leeward side in the second direction Z. It may be wider than the width in the direction Z.

Embodiment 3.
As shown in FIG. 7, the heat source machine according to the third embodiment has basically the same configuration as the heat source machine 1 according to the second embodiment, but has a first surface portion in a cross section perpendicular to the first direction X. The difference is that 90 has a plurality of inclined portions that are inclined with respect to the XY plane OS including the rotation axis O.

The first surface portion 90 has, for example, a plurality of inclined portions that are inclined with respect to the XY plane OS and at least one parallel portion that is parallel to the XY plane OS in a cross section perpendicular to the first direction X. doing. The first surface portion 90 has, for example, a first inclined portion 92, a first parallel portion 93, a second inclined portion 94, and a second parallel portion 95 which are arranged side by side in the third direction Y. The windward side of the third wall portion 9w is configured by, for example, the first inclined portion 92, the first parallel portion 93, and the second inclined portion 94.

The wind upper end portion of the first inclined portion 92 constitutes the wind upper end portion 90b of the first surface portion 90, and is connected to the upper end portion of the second surface portion 91. The wind lower end of the first inclined portion 92 is connected to the wind upper end of the first parallel portion 93. The wind lower end of the first parallel portion 93 is connected to the wind upper end of the second inclined portion 94. The wind lower end of the second inclined portion 94 is connected to the wind upper end of the second parallel portion 95. The wind lower end of the second parallel portion 95 forms a wind lower end 90a of the first surface portion 90, and is connected to the front plate 2a.

The distance in the second direction Z between the first inclined portion 92 and the XY plane OS and the distance in the second direction Z between the second inclined portion 94 and the XY plane OS are from the windward side to the leeward side. It gets shorter as you go. The distance in the second direction Z between the first parallel portion 93 and the XY plane OS and the distance in the second direction Z between the second parallel portion 95 and the XY plane OS are constant.

The distance in the second direction Z between the windward upper end 90b of the third wall portion 9w, that is, the windward upper end of the first inclined portion 92, and the XY plane OS is on the leeward side of the first inclined portion 92. It is longer than the distance L4 in the second direction Z between the located first parallel portion 93 and the XY plane OS. The distance L4 is longer than the distance L5 in the second direction Z between the second parallel portion 95 located on the leeward side of the first parallel portion 93 and the XY plane OS.

The inclination angle of the first inclined portion 92 with respect to the XY plane OS is smaller than the inclination angle of the second inclined portion 94 with respect to the XY plane OS, for example.

Further, the first surface portion 90 has, for example, only a plurality of inclined portions that are inclined with respect to the XY plane OS in a cross section perpendicular to the first direction X, and each inclined portion has the above-described XY plane OS. It may be provided in a stepwise manner by forming different inclination angles with respect to each other. The inclination angle of the inclined portion arranged relatively to the windward side is smaller than the inclination angle of the inclined portion arranged relatively to the leeward side.

Also in the heat source device 1 according to the third embodiment, similarly to the heat source device 1 according to the second embodiment, the airflow in the blower chamber 6 is guided to the third wall portion 9w and reaches the wind upper end portion 4b of the bell mouth 4. Reach Therefore, the heat source device 1 according to the third embodiment can achieve the same effect as the heat source device 1 according to the second embodiment.

Fourth Embodiment
As shown in FIGS. 8 to 10, the heat source device according to the fourth embodiment has a configuration basically equivalent to that of the heat source device 1 according to the first embodiment, but when viewed from the second direction Z, Both ends 90bb and 90bc in the first direction X of the wind upper end 90b of the three wall portion 9w are different in that they are arranged on the windward side of the central portion 90ba of the wind upper end 90b in the first direction X.

Note that, in FIG. 9, the fan 3, the motor 11, the support unit 12, the compressor 201, and the control unit 205 are not shown. In FIG. 10, the wiring section 206 is not shown. In FIG. 10, the windward upper end portion 4b of the bell mouth 4 and the windward upper end portion 90b of the third wall portion 9w, which are located on the leeward side of the end surface shown in FIG. 10, are indicated by dotted lines.

As shown in FIG. 9, when viewed from the second direction Z, the wind upper end 90b of the third wall 9w is provided in a concave shape. When viewed from the second direction Z, the wind upper end portion 90b includes a central portion 90ba arranged to overlap the rotation axis O of the fan 3 in the second direction Z, and an end portion 90bb closest to the first wall portion 7w. , And the end portion 90bc closest to the second wall portion 8w. The central portion 90ba is arranged on the leeward side of the both end portions 90bb and 90bc in the third direction Y. In other words, the central portion 90ba is arranged on the leeward side of the imaginary straight line connecting the both end portions 90bb and 90bc. The virtual straight line is shown by a dotted line in FIG. The first surface portion 90 is provided parallel to the rotation axis O of the fan 3.

As shown in FIG. 9, the first wall portion 7w has, for example, a fifth surface portion 70 and a sixth surface portion 71 disposed on the windward side of the fifth surface portion 70. The fifth surface portion 70 is provided parallel to the rotation axis O of the fan 3. The fifth surface portion 70 is provided parallel to the YZ plane extending along the second direction Z and the third direction Y. The sixth surface portion 71 extends in a direction intersecting with the fifth surface portion 70. The wind upper end portion of the fifth surface portion 70 is connected to the wind lower end portion of the sixth surface portion 71. The distance in the first direction X between the wind upper end of the sixth surface 71 of the first wall 7w and the rotation axis O is between the wind lower end of the sixth surface 71 of the first wall 7w and the rotation axis O. Is longer than the distance in the first direction X between.

As shown in FIG. 9, the second wall portion 8w has, for example, a seventh surface portion 80 and an eighth surface portion 81 disposed on the windward side of the seventh surface portion 80. The seventh surface portion 80 is provided parallel to the rotation axis O of the fan 3. The seventh surface portion 80 is provided in parallel with the YZ plane extending along the second direction Z and the third direction Y. The eighth surface portion 81 extends in a direction intersecting with the seventh surface portion 80. The wind upper end of the seventh surface 80 is connected to the wind lower end of the eighth surface 81. The distance in the first direction X between the wind upper end of the eighth surface 81 of the second wall 8w and the rotation axis O is between the wind lower end of the eighth surface 81 of the second wall 8w and the rotation axis O. Is longer than the distance in the first direction X between.

As shown in FIG. 9, when viewed from the second direction Z, the first wall portion 7W has a sixth surface portion 71 provided so as to be continuous with the wind upper end portion 90b of the third wall portion 9w. It is preferable to be provided as follows. When viewed from the second direction Z, the second wall portion 8W is provided so as to have the eighth surface portion 81 which is provided so as to be continuous with the wind upper end portion 90b of the third wall portion 9w. preferable. In other words, when viewed from the second direction Z, the wind upper end portion of the fifth surface portion 70, the sixth surface portion 71, the wind upper end portion of the seventh surface portion 80, and the eighth surface portion 81 are the first surface portion of the third wall portion 9w. It is preferably provided so as to be connected to the wind upper end portion 90b of 90 in a curved shape. When viewed in the second direction Z, the wind upper end portion of the fifth surface portion 70 is arranged so as to overlap the end portion 90bb of the wind upper end portion 90b of the first surface portion 90. When viewed from the second direction Z, the wind upper end portion of the seventh surface portion 80 is arranged so as to overlap the end portion 90bc of the wind upper end portion 90b of the first surface portion 90.

FIG. 10 shows the intermediate portion 90bd located between the central portion 90ba and the end portion 90bb and the intermediate portion 90be located between the central portion 90ba and the end portion 90bc shown in FIG. It is the end view which looked at the end surface perpendicular to Y from the windward side.

As shown in FIG. 10, a lower region of the wind upper end 4b of the bell mouth 4 that is located below the rotation axis O and overlaps the rotation axis O in the second direction Z is a diameter of the fan 3. It is arranged so as to face the lower surface plate 2c in the direction. A region of the wind upper end 4b adjacent to the lower region in the first direction X is arranged so as to face the first surface 90 in the radial direction.

As shown in FIG. 10, the distance L5 in the radial direction between the lower area of the wind upper end 4b of the bell mouth 4 and the lower surface plate 2c is equal to the wind upper end 4b and the central portion 90ba of the wind upper end 90b. Is longer than the distance in the radial direction. The distance L5 is, for example, the distance L6 in the radial direction between the wind upper end 4b of the bell mouth 4 and the intermediate portion 90bd of the wind upper end 90b, and the radial direction between the wind upper end 4b and the intermediate portion 90be. Is more than the distance in.

In the heat source device 1 according to the fourth embodiment, since the central portion 90ba of the wind upper end portion 90b of the first surface portion 90 is arranged on the leeward side than the both end portions 90bb and 90bc, the distance L5 is set to the distance L6 or more. Can be done. By doing so, the velocity of the airflow passing through the central portion 90ba becomes slower than the velocity of the airflow passing through the intermediate portions 90bd and 90be, so that the pressure loss of the airflow passing through the central portion 90ba is reduced to the intermediate portion 90bd, The pressure loss of the air flow passing over 90 be is reduced.

Further, as shown in FIG. 10, in the heat source device 1 according to the fourth embodiment, the distance in the second direction Z between the wind upper end portion 4b of the bell mouth 4 and the lower surface plate 2c in the blower chamber 6 is relatively large. The third wall portion 9w is arranged in the region that becomes long. Therefore, in the heat source device 1 according to the fourth embodiment, the maximum value and the minimum value of the distance in the second direction Z between the first surface portion 90 of the third wall portion 9w and the wind upper end portion 4b of the bell mouth 4 are set. The difference and the rate of change of the distance with respect to the change of the position in the first direction X in the area are smaller than those of the heat source device 1 according to the first embodiment. As a result, in the heat source device 1 according to the fourth embodiment, the turbulence of the air flow in the area of the blower chamber 6 is reduced as compared with the heat source device 1 according to the first embodiment.

Further, in the heat source device 1 according to the fourth embodiment, when viewed from the second direction Z, the wind upper end 90b of the third wall 9w is the wind upper end of the first wall 7w and the wind upper end of the second wall 8w. It is provided so as to be continuous with the section in an arc shape. Therefore, the periphery of the connection between the wind upper end of the first wall 7w and the wind upper end 90b of the third wall 9w, that is, the periphery of the end 90bb, and the wind upper end and the third wall of the second wall 8w. The retention of gas is suppressed around the connection portion with the wind upper end portion 90b of 9w, that is, around the end portion 90bc.

<Modification>
In the heat source device according to the fourth embodiment, as in the heat source device 1 according to the second embodiment, the first surface portion 90 may be provided so as to be inclined with respect to the third direction Y. Further, in the heat source device according to the fourth embodiment, the first surface portion 90 may have a plurality of inclined portions in the cross section perpendicular to the first direction X, similarly to the heat source device according to the third embodiment.

As shown in FIGS. 11 to 13, the first surface portion 90 includes, for example, a first inclined portion 96 that is inclined with respect to the XY plane OS including the rotation axis O, and the XY plane OS including the rotation axis O. May have a first parallel portion 97 parallel to. The wind upper end portion of the first inclined portion 96 forms the wind upper end portion 90b of the first surface portion 90, and is connected to the upper end portion of the second surface portion 91. The wind lower end 96a of the first inclined portion 96 is connected to the wind upper end of the first parallel portion 97. The windward end of the first parallel portion 97 is connected to the front plate 2a. The windward side of the third wall portion 9w is constituted by, for example, the entire first inclined portion 92 and the entire second surface portion 91.

Note that, in FIG. 12, the fan 3, the motor 11, the support unit 12, the compressor 201, and the control unit 205 are not shown. In FIG. 13, the wiring section 206 is not shown. In FIG. 13, a part of the windward end 4b of the bell mouth 4 and the windward end 90b of the third wall 9w located on the leeward side of the end face shown in FIG. 13 is indicated by a dotted line.

As shown in FIG. 12, when viewed from the second direction Z, the wind lower end 96a of the first inclined portion 96 is provided, for example, in parallel with the wind upper end 90b of the first surface 90. FIG. 13 is an end view seen from an arrow XIII-XIII in FIG. 12 and 13, in the end surface shown in FIG. 13, a portion of the first inclined portion 96 that overlaps the rotation axis O is P1, a wind lower end portion 96a located on the second wall portion 8w side is P2, and a second wall portion. The end portion of the third wall portion 9w located on the 8w side is P3.

As shown in FIG. 12, the wind upper end 90b of the third wall 9w is preferably provided so as to be continuous with the first wall 7w and the second wall 8w when viewed in the second direction Z.

As shown in FIG. 13, the lower region of the wind upper end 4b of the bell mouth 4 that is located below the rotation axis O and that overlaps with the rotation axis O in the second direction Z has a radial direction. It is arranged so as to face the first inclined portion 92. An area of the wind upper end 4b adjacent to the lower area in the first direction X is arranged so as to face the first parallel portion 93 in the radial direction.

As shown in FIG. 13, the distance L7 in the radial direction between the lower region of the wind upper end 4b of the bell mouth 4 and the P1 is equal to the distance L7 between the wind upper end 4b and the first parallel portion 97. It is longer than the distance in the radial direction. The distance L7 is equal to the distance between the wind upper end 4b of the bell mouth 4 and the P2, for example. In the end surface shown in FIG. 13, the first inclined portion 96 is provided, for example, in parallel with the wind upper end portion 4b of the bell mouth 4. The distance L7 is shorter than the distance L8 between the wind upper end 4b of the bell mouth 4 and the P3, for example.

Such a heat source device shown in FIGS. 11 to 13 has the same configuration as the heat source device according to the fourth embodiment, but further has a first surface portion 90 similar to that of the heat source device according to the second embodiment. Since it is provided, the effects of each heat source device 1 according to the second and fourth embodiments can be exhibited at the same time.

Embodiment 5.
As shown in FIGS. 14 and 15, the heat source device 1 according to the fifth embodiment has basically the same configuration as the heat source device 1 according to the first embodiment, but when viewed from the third direction Y, Both ends of the third wall 9w in the first direction X of the windward are different from each other in that they are arranged closer to the XY plane including the rotation axis O than the center of the windward in the first direction X. ..

The first surface portion 90 of the third wall portion 9w is, for example, a first inclined portion 98 that is inclined with respect to the XY plane OS that includes the rotation axis O, and a first parallel portion that is parallel to the XY plane OS that includes the rotation axis O. And a parallel portion 99. The wind upper end of the first inclined portion 98 constitutes the wind upper end 90b of the first surface portion 90. The wind lower end 98a of the first inclined portion 98 is connected to the wind upper end of the first parallel portion 99. The windward side is constituted by the entire first inclined portion 98, for example.

The wind lower end portion 98a has a central portion 98aa and both end portions 98ab, 98ac in the first direction X. When viewed from the third direction Y, both end portions 98ab and 98ac are arranged closer to the XY plane OS including the rotation axis O than the central portion 98aa. In other words, the distance L9 in the second direction Z between the central portion 98aa and the XY plane OS is the distance L10 in the second direction Z between the end portion 98ab and the XY plane OS, and the end portion 98ac and the XY. It is longer than the distance in the second direction Z from the plane OS.

The wind upper end portion 90b of the first surface portion 90 has a central portion 90ba and both end portions 90bb, 90bc in the first direction X. When viewed from the third direction Y, the both end portions 90bb and 90bc are arranged closer to the XY plane OS including the rotation axis O than the central portion 90ba, for example. In other words, the distance L11 in the second direction Z between the central portion 90ba and the XY plane OS is the distance L12 in the second direction Z between the end portion 90bb and the XY plane OS, and the end portion 90bc and the XY. It is longer than the distance in the second direction Z from the plane OS.

The distance L9 is shorter than the distance L11, and is longer than the distance L12, for example. The distance L10 is shorter than the distance L12.

The first inclined portion 98 is provided so that, for example, the rotation axis O is the central axis and the apex forms a conical surface arranged on the leeward side of the fan 3. The first parallel portion 99 is provided so as to form, for example, a cylindrical surface having the rotation axis O as a central axis.

In the heat source device 1 according to the fifth embodiment, when viewed from the third direction Y, both ends of the third wall portion 9w in the first direction X of the windward side are closer to the center portion in the first direction X of the windward side. Is also arranged on the XY plane side including the rotation axis O. Therefore, in the heat source device 1 according to the fifth embodiment, compared with the heat source device 1 according to the first to fourth embodiments, the third wall portion 9w and the wind upper end portion 4b in the vicinity of the wind upper end portion 4b of the bell mouth 4 are provided. Is short and the amount of change in the distance in the circumferential direction of the fan 3 is small. As a result, in the heat source device 1 according to the fifth embodiment, compared with the heat source device 1 according to the second embodiment, the power consumption during ventilation is further reduced and the noise is further reduced.

<Modification>
In the heat source device according to the fifth embodiment, as in the heat source device 1 according to the second embodiment, the first surface portion 90 has the first inclined portion 98 provided so as to incline with respect to the third direction Y. However, it is not limited to this. The first surface portion 90 may have only the first parallel portion 99. Further, in the heat source device according to the fifth embodiment, as in the heat source device according to the third embodiment, the first surface portion 90 may have a plurality of inclined portions in the cross section perpendicular to the first direction X. Each inclined portion is provided so that, for example, the rotation axis O is the central axis and the apex forms a conical surface arranged on the leeward side of the fan 3. The first surface portion 90 may have a plurality of flat surface portions. Each flat surface portion is provided so as to form, for example, a cylindrical surface having the rotation axis O as a central axis.

Sixth Embodiment
As shown in FIG. 16, the heat source device 1 according to the sixth embodiment has basically the same configuration as the heat source device 1 according to the first embodiment, but the second surface portion 91 is inclined with respect to the XZ plane. It is different in that it is provided to do.

The second surface portion 91 has a wind lower end portion 91a connected to the wind upper end portion of the first surface portion 90 and a wind upper end portion 91b connected to the lower surface plate 2c. The windward end portion 91b of the second surface portion 91 is arranged on the windward side of the windward end portion 91a of the second surface portion 91. That is, the wind upper end portion 91b of the second surface portion 91 constitutes the wind upper end portion of the third wall portion 9w.

The distance in the second direction Z between the wind upper end portion 91b of the second surface portion 91 and the XY plane including the rotation axis O is the wind lower end portion 91a of the second surface portion 91 and the XY plane including the rotation axis O. It is longer than the distance in the second direction Z between them. The angle formed by the first surface portion 90 and the second surface portion 91 with respect to the wind upper end portion 90b is larger than 90 degrees.

In the heat source device 1 according to the sixth embodiment, as in the heat source device 1 according to the second embodiment, the airflow in the blower chamber 6 is guided to the third wall portion 9w and reaches the wind upper end portion 4b of the bell mouth 4. .. Therefore, the heat source device 1 according to the sixth embodiment can achieve the same effect as the heat source device 1 according to the second embodiment.

<Modification>
The heat source machine 1 according to the sixth embodiment has the same configuration as the heat source machines according to the second to fifth embodiments, except that the second surface portion 91 is provided so as to be inclined with respect to the XZ plane. May be. In other words, the second surface portion 91 of the heat source device according to the second to fifth embodiments may be provided so as to be inclined with respect to the XZ plane.

Embodiment 7.
As shown in FIG. 17, the heat source device 1 according to the seventh embodiment has basically the same configuration as the heat source device 1 according to the first embodiment, but the entire third wall portion 9w is in the third direction. The difference is that it is arranged on the lee side of the bell mouth 4 in Y. That is, the third wall portion 9w in the seventh embodiment does not have the windward side.

Also in the heat source device 1 according to the seventh embodiment, since the wiring portion 206 is housed in the third machine room 9 that is separated from the blower chamber 6 by the third wall portion 9w, the wiring portion 206 is protected against leakage and corrosion. The risk of anomalies is reduced.

The second surface portion 91 of the third wall portion 9w is preferably provided so as to be inclined with respect to the XZ plane. The wind velocity of the air flow passing through the outer peripheral region of the blower chamber 6 located outside the wind upper end 4b of the bell mouth 4 with respect to the rotation axis O is inside the wind upper end 4b of the bell mouth 4 with respect to the rotation axis O. Is faster than the wind speed of the air flow passing through the central region of the blower chamber 6 located at. Therefore, the ventilation resistance in the blower chamber 6 becomes a problem in the outer peripheral region. If the second surface portion 91 is provided so as to be inclined with respect to the XZ plane, the airflow along the lower surface plate 2c is guided to the second surface portion 91 and reaches the wind upper end portion 4b of the bell mouth 4. In this case, the generation of vortices due to the separation of the airflow on the second surface portion 91 is suppressed, and the energy loss due to the vortices is reduced.

<Modification>
The third machine room 9, the third wall portion 9w, and the wiring portion 206 of the heat source device 1 according to the first to seventh embodiments may be arranged above the fan 3. FIG. 18 shows a configuration example in which the third machine room 9, the third wall portion 9w and the wiring portion 206 are arranged above the fan 3 in the second embodiment. As shown in FIG. 18, the third machine room 9, the third wall portion 9w, and the wiring portion 206, which are arranged above the fan 3, have the fan shown in FIGS. It suffices that the third machine room 9, the third wall portion 9w, and the wiring portion 206, which are disposed below 3, are configured symmetrically.

In the heat source device 1 according to the first to seventh embodiments, the heat source side components housed in the first machine room 7, the second machine room 8 and the third machine room 9 are the compressor 201 and the heat source side heat exchanger 5. The decompression unit 203, the four-way valve 204, the control unit 205, and the wiring unit 206 are not limited. Further, the refrigeration cycle device 200 according to the first to seventh embodiments is not limited to the configuration shown in FIG.

The refrigeration cycle device according to Embodiments 1 to 7 may be configured as a so-called indirect air conditioner or may be configured as a water heater. Such a refrigeration cycle apparatus includes the refrigerant circuit, a heat medium circuit through which a heat medium flows, and a heat exchanger that exchanges heat between the refrigerant flowing through the refrigerant circuit and the heat medium flowing through the heat medium circuit. .. The heat medium is water, for example. The heat exchanger for exchanging heat between the refrigerant and the heat medium is, for example, a plate heat exchanger. In this case, the heat source device 1 according to the first to seventh embodiments further includes a plate heat exchanger in addition to the heat source side heat exchanger 5, and the plate heat exchanger is provided in the second machine room 8, for example. Be accommodated. FIG. 19 shows a configuration example in which the plate heat exchanger 210 is housed in the second machine room 8 in the first embodiment. As shown in FIG. 19, the refrigerant pipe 211 reaching the plate heat exchanger 210 is passed through the third machine room 9 together with the wiring portion 206. The outer diameter of the refrigerant pipe 211 is larger than the outer diameter of the wiring portion 206, for example. In this case, preferably, the wiring portion 206 is arranged relatively on the leeward side, and the refrigerant pipe 211 is arranged on the relatively leeward side. It should be noted that in FIG. 19, the pressure reducing unit 203, the four-way valve 204, and the refrigerant pipes other than the refrigerant pipe 211 are not shown.

In the heat source device 1 according to the first to seventh embodiments, the third wall portion 9w may be provided by molding one member, or may be provided by connecting a plurality of members. Good.

The third wall portion 9w may be configured as, for example, a part of a tubular member as long as it has the above configuration. That is, the third wall portion 9w may be provided so as to surround the entire circumference of the third machine chamber 9 in the cross section perpendicular to the first direction X. In such a tubular member, a third surface portion connected to the first surface portion 90 of the third wall portion 9w, a second surface portion 91, and a fourth surface portion connected to the third surface portion in the circumferential direction. And have. The third surface portion is connected to the front plate 2a, and the fourth surface portion is connected to the lower surface plate 2c. Further, the third wall portion 9w may be configured as an eaves-shaped member including only the first surface portion 90 and the second surface portion 91 without including the third surface portion and the fourth surface portion.

In the heat source device 1 according to the first to seventh embodiments, a gap may be provided between the third wall portion 9w and the first wall portion 7w and the second wall portion 8w.

Although the embodiments of the present invention have been described above, the above-described embodiments can be modified in various ways. Further, the scope of the present invention is not limited to the above embodiment. The scope of the present invention is defined by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

1 heat source device, 2 outer box, 2a front plate, 2b rear plate, 2c lower plate, 2d upper plate, 2e, 2f side plate, 2h outlet, 3 fan, 4 bell mouth, 4a wind lower end part, 4b, 90b, 91b wind upper end, 5 heat source side heat exchanger, 6 blower room, 7 first machine room, 7w first wall section, 8 second machine room, 8w second wall section, 9th third machine room, 9w third wall Parts, 11 motors, 12 support parts, 13 fan guards, 70 fifth surface parts, 71 sixth surface parts, 80 seventh surface parts, 81 eighth surface parts, 90 first surface parts, 90ba, 98aa central parts, 90bb, 90bc, 98ab ends Part, 90 bd, 90 be middle part, 91 second surface part, 92, 96, 98 first inclined part, 93, 97, 99 first parallel part, 94 second inclined part, 95 second parallel part, 200 refrigeration cycle device, 201 compressor, 202 load side heat exchanger, 203 pressure reducing section, 204 four-way valve, 205 control section, 206 wiring section, 207 indoor unit, 208,209,211 refrigerant pipe, 210 plate heat exchanger.

Claims

A heat source machine that houses a plurality of heat source side components and a blower,
A blower chamber that houses at least the blower therein;
A first machine room for accommodating a first part of the heat source side constituent parts therein;
A second machine room for accommodating a second part of the heat source side constituent parts therein;
A third machine room for accommodating therein a connecting member for connecting the first component and the second component,
The first machine room and the second machine room are arranged so as to sandwich the blower chamber in a first direction orthogonal to the rotation axis of the blower,
The third machine room is arranged between the first machine room and the second machine room in the first direction, and the second machine direction is orthogonal to each of the rotation axis and the first direction. A heat source unit that is arranged alongside the blower.
A first wall portion that partitions the blower chamber and the first machine room;
A second wall portion that partitions the blower chamber and the second machine chamber;
Further comprising a third wall portion that partitions the blower chamber and the third machine chamber,
The blower chamber includes an inlet that takes in air from the outside of the blower chamber to the inside, a blowout port that blows out air from the inside of the blower chamber to the outside, and a bell mouth arranged so as to be continuous with the blowout port,
The third wall portion includes a windward side located on the suction port side with respect to the bell mouth in a third direction in which the rotation shaft extends,
2. The windward part according to claim 1, wherein the windward part has a leeward end located on the suction port side in the third direction and a leeward part located on the air outlet side with respect to the leeward end. Heat source machine.
The heat source machine according to claim 2, wherein a distance in the second direction between the windward upper end portion and the rotating shaft is longer than a distance in the second direction between the leeward portion and the rotating shaft.
When viewed from the second direction, both end portions of the wind upper end portion in the first direction are arranged so as to project in the second direction from a central portion of the wind upper end portion in the first direction, The heat source machine according to claim 2 or 3.
The first wall portion and the second wall portion have a portion that is provided so as to be continuous with the wind upper end portion of the third wall portion when viewed from the second direction. Heat source machine described.
When viewed from the third direction, both ends of the windward in the first direction are arranged so as to project in the second direction from a central portion of the windward in the first direction. The heat source machine according to any one of 2 to 5.
The blower chamber has an inlet for taking in air from the outside of the blower chamber to the inside, and a blowout port for blowing air from the inside of the blower chamber to the outside, and is further arranged so as to be continuous with the blowout port. Including the mouse,
The wind upper end located on the suction port side of the bell mouth is arranged closer to the outlet than the third machine chamber in the third direction in which the rotating shaft extends. Heat source machine.
The heat source side component further includes a compressor, a control unit that controls the compressor, and a wiring unit that connects the compressor and the control unit,
The first component has the compressor,
The second component has the control unit,
The heat source device according to any one of claims 1 to 7, wherein the connecting member has the wiring portion.
A heat source machine according to any one of claims 1 to 8,
An indoor unit that houses the load side heat exchanger,
A refrigeration cycle apparatus comprising: a refrigerant pipe line that connects the heat source unit and the indoor unit.