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WO2020255311A1 - Dispositif de ventilation de type à échange de chaleur - Google Patents

Dispositif de ventilation de type à échange de chaleur Download PDF

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Publication number
WO2020255311A1
WO2020255311A1 PCT/JP2019/024389 JP2019024389W WO2020255311A1 WO 2020255311 A1 WO2020255311 A1 WO 2020255311A1 JP 2019024389 W JP2019024389 W JP 2019024389W WO 2020255311 A1 WO2020255311 A1 WO 2020255311A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchange
shutter
exhaust
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/024389
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English (en)
Japanese (ja)
Inventor
俊明 河合
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2021528548A priority Critical patent/JP7109672B2/ja
Priority to PCT/JP2019/024389 priority patent/WO2020255311A1/fr
Publication of WO2020255311A1 publication Critical patent/WO2020255311A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • the present invention relates to a heat exchange type ventilation device that ventilates while exchanging heat between outdoor air and indoor air.
  • the air supply ventilation passage that connects the outdoor and the indoor
  • the exhaust ventilation passage that connects the indoor and the outdoor
  • the air supply air that flows through the air supply ventilation passage.
  • a heat exchange type ventilator equipped with a heat exchanger for exchanging heat between the air and the exhaust flow flowing through the exhaust ventilation path is used.
  • This type of heat exchange type ventilation system is equipped with a control circuit that drives and controls an air supply fan that generates an air supply airflow and an exhaust fan that generates an exhaust flow.
  • the heat-dissipating component mounted on the control circuit is used as a cooling structure, and the heat-dissipating member for cooling the heat-generating component is exposed to a ventilation path through which outdoor air passes after passing through the total heat exchanger in the air supply path.
  • a ventilator having a structure is disclosed.
  • the cooling structure for heat-generating components described in Patent Document 1 is a heat-generating cooling method suitable for cold regions, and is effective when the indoor temperature is higher than the outdoor temperature, but the indoor temperature is lower than the outdoor temperature. There was a problem that it hindered the cooling of the room, especially when the room was cooled in the summer in a general area.
  • the present invention has been made in view of the above, and obtains a heat exchange type ventilator capable of cooling heat generating parts mounted on the heat exchange type ventilator without impairing the heat exchange function of the heat exchange type ventilator.
  • the purpose is.
  • the heat exchange type ventilation device has an exhaust ventilation passage for exhausting indoor air to the outside and a supply air ventilation for supplying outdoor air to the room.
  • the heat exchange type ventilator heats the upstream exhaust ventilation path, which is the exhaust ventilation path on the upstream side of the heat exchanger, and the downstream exhaust ventilation path, which is the exhaust ventilation path on the downstream side of the heat exchanger.
  • a non-heat exchange air passage that is connected without passing through a exchanger, and a control circuit board that is arranged in contact with the outer surface of one surface of the housing at a position facing the non-heat exchange air passage across one surface of the housing. It is provided with a heat radiating portion arranged in contact with the inner surface of one surface in the heat exchange air passage.
  • the heat exchange type ventilator according to the present invention has the effect of being able to cool the heat generating parts mounted on the heat exchange type ventilator without impairing the heat exchange function of the heat exchange type ventilator.
  • FIG. 1 The perspective view which shows the structure of the heat exchange type ventilation apparatus which concerns on Embodiment 1 of this invention.
  • the schematic diagram which shows the arrangement of the non-heat exchange air passage, the control circuit board, and the heat dissipation part in the heat exchange type ventilation apparatus which concerns on Embodiment 1 of this invention.
  • the heat exchanger, the upstream communication port for exhaust, the downstream communication port for exhaust, the upstream communication port for air supply, and the downstream communication port for air supply Schematic diagram showing the arrangement Schematic diagram showing the arrangement of the non-heat exchange air passage, the control circuit board, the heat radiating part, and the board temperature sensor in the heat exchange type ventilation device according to the second embodiment of the present invention.
  • the heat exchange type ventilator takes in the air in the air-conditioned space and discharges it outside the air-conditioned space, and also takes in the air outside the air-conditioned space and supplies it to the air-conditioned space.
  • air-conditioned spaces include houses, buildings and warehouses. In the following description, the air-conditioned space is the interior of the building.
  • door air refers to the air supply supplied to the room from the heat exchange type ventilator
  • indoor air refers to the exhaust gas discharged to the outside by the heat exchange type ventilator.
  • FIG. 1 is a perspective view showing the configuration of the heat exchange type ventilation device 100 according to the first embodiment of the present invention.
  • a part of the top surface 51, the front surface 53, and the indoor side surface 55 of the heat exchange type ventilation device 100 is shown.
  • the arrows with dots in the hatching in FIG. 1 indicate the flow of the air supply airflow
  • the arrows with the hatched diagonal lines indicate the flow of the exhaust flow.
  • FIG. 2 is a schematic view showing a non-heat exchange air passage 31 according to the first embodiment of the present invention. In FIG. 2, attention is paid to the air flow in the non-heat exchange air passage 31, and detailed illustration is omitted.
  • FIG. 2 is a schematic view showing a non-heat exchange air passage 31 according to the first embodiment of the present invention. In FIG. 2, attention is paid to the air flow in the non-heat exchange air passage 31, and detailed illustration is omitted.
  • FIG. 1 is a perspective view showing the configuration of the heat exchange type ventilation device 100 according to the first embodiment
  • FIG. 3 is a schematic view showing the flow of air in the non-heat exchange air passage 31 for cooling the substrate according to the first embodiment of the present invention.
  • FIG. 4 is a schematic view showing the arrangement of the heat exchanger 8, the exhaust upstream side communication port 12, and the exhaust downstream side communication port 13 in the heat exchange type ventilation device 100 according to the first embodiment of the present invention.
  • reference numeral OA indicates outdoor air
  • reference numeral SA indicates supply air
  • reference numeral RA indicates return air
  • reference numeral EA indicates exhaust air.
  • FIG. 5 is a schematic view showing the arrangement of the non-heat exchange air passage 31, the control circuit board 14, and the heat radiating unit 15 in the heat exchange type ventilation device 100 according to the first embodiment of the present invention.
  • the heat exchange type ventilator 100 is a ceiling-embedded heat exchange type ventilator that is attached to the space behind the ceiling and supplies and exhausts air through a duct.
  • the heat exchange type ventilation device 100 has a rectangular parallelepiped shape having a top surface 51, a bottom surface 52, a front surface 53, a rear surface 54, an indoor side surface 55, and an outdoor side surface 56, and includes a housing 5 constituting an outer shell.
  • the housing 5 has an outside air port 1 for taking in air from the outside, an exhaust port 2 for exhausting air to the outside, a return air port 3 for taking in air from the room, and an air supply port 4 for supplying air to the room.
  • the outside air port 1 and the exhaust port 2 are provided on the outdoor side surface 56. Further, the return air port 3 and the air supply port 4 are provided on the indoor side surface 55.
  • the air supply ventilation passage 5A is an air passage for supplying the outdoor air taken in from the outside air port 1 to the room through the air supply port 4.
  • the exhaust ventilation passage 5B is an air passage for exhausting the indoor air taken in from the return air port 3 to the outside through the exhaust port 2.
  • An air supply blower 6 is provided in the air supply ventilation passage 5A.
  • the air supply airflow which is an air flow, travels from the outside to the inside of the room and passes through the air supply ventilation passage 5A.
  • the air supply blower 6 is configured such that an electric motor 61 and a blade member 62 that is rotated by the operation of the electric motor 61 are surrounded by an air supply fan casing 63.
  • An exhaust blower 7 is provided in the exhaust ventilation passage 5B.
  • the exhaust flow which is an air flow, travels from the room to the outside and passes through the exhaust ventilation path 5B.
  • the exhaust blower 7 is configured such that an electric motor 71 and a blade member 72 that rotates by the operation of the electric motor 71 are surrounded by an exhaust fan casing 73.
  • the heat exchanger 8 is located in the middle of the air supply ventilation passage 5A and the exhaust ventilation passage 5B, and is arranged in the center of the housing 5.
  • the heat exchanger 8 has a quadrangular columnar shape, and in a state where the quadrangular columnar is laid on its side with the diagonal lines in the vertical and horizontal directions, the axial direction of the quadrangular columnar is the top surface 51, the bottom surface 52, the indoor side surface 55 and the outdoor side. It is installed so as to straddle the front surface 53 and the rear surface 54 in a state of being parallel to the side surface 56.
  • the air supply air passage 5A passes from the outside air port 1 through the air supply air passage 5A in the heat exchanger, which is the air supply air passage 5A in the heat exchanger 8, and passes through the air supply air blower 6 to the air supply port 4.
  • the exhaust ventilation passage 5B passes from the return air port 3 through the exhaust ventilation passage 5Bb in the heat exchanger, which is the exhaust ventilation passage 5B in the heat exchanger 8, and reaches the exhaust port 2 via the exhaust blower 7.
  • the air supply ventilation passage 5A and the exhaust ventilation passage 5B are configured independently of each other in the heat exchange type ventilation device 100 so that the air supply and the exhaust air are not mixed.
  • the air supply air passage 5A is located on the upstream side of the heat exchanger 8 and communicates with the outside of the room.
  • the air supply air passage 5Aa on the upstream side and the air supply air passage 5A in the heat exchanger 8 are supplied in the heat exchanger. It is divided into three types: an air passage 5Ab and a downstream air supply air passage 5Ac located downstream of the heat exchanger 8 and communicating with the room.
  • the exhaust ventilation passage 5B is located on the upstream side of the heat exchanger 8 and communicates indoors with the upstream exhaust ventilation passage 5Ba, and the exhaust ventilation passage 5B in the heat exchanger 8 is the exhaust ventilation in the heat exchanger. It is divided into three parts: a passage 5Bb and a downstream exhaust ventilation passage 5Bc located on the downstream side of the heat exchanger 8 and communicating with the outside.
  • a maintenance cover 9 is provided at a position facing the end surface of the heat exchanger 8 on the front surface 53 of the housing 5. By opening the maintenance cover 9, the heat exchanger 8 can be taken in and out of the housing 5.
  • a non-heat exchange air passage 31 which is an air passage for cooling the control circuit board 14 is provided in a region on the front surface 53 side of the heat exchanger 8 inside the housing 5. ing.
  • the non-heat exchange air passage 31 is an internal space of a box-shaped portion provided on the maintenance cover 9, and is a non-heat exchange air passage different from the non-heat exchange air passage 11 described later.
  • the upstream side exhaust ventilation passage 5Ba is provided with an exhaust upstream side communication port 32 for communicating the upstream side exhaust ventilation passage 5Ba and the non-heat exchange air passage 31.
  • the upstream exhaust ventilation passage 5Ba and the non-heat exchange ventilation passage 31 are separated by a surface on the rear surface 54 side of the maintenance cover 9, that is, an internal side surface 91 facing the inside of the housing 5, and is separated from the upstream side for exhaust. It communicates through the communication port 32.
  • the exhaust upstream side communication port 32 is the first communication port in the heat exchange type ventilation device 100, and is provided on the inner side surface 91 of the maintenance cover 9.
  • the inner side surface 91 of the maintenance cover 9 is a surface of the maintenance cover 9 located on the inner side of the housing 5. Further, the surface of the maintenance cover 9 that faces the outside, that is, the outer side surface 92 that faces the outer side of the housing 5, constitutes one side of the housing 5, and constitutes the outer surface of the housing 5.
  • downstream exhaust ventilation passage 5Bc is provided with an exhaust downstream communication port 33 for communicating the downstream exhaust ventilation passage 5Bc and the non-heat exchange ventilation passage 31.
  • the downstream exhaust air passage 5Bc and the non-heat exchange air passage 31 are separated by an internal side surface 91 of the maintenance cover 9 and communicate with each other through the exhaust downstream communication port 33.
  • the exhaust downstream communication port 33 is the second communication port in the heat exchange type ventilation device 100, and is provided on the internal side surface 91 of the maintenance cover 9.
  • the non-heat exchange air passage 31 is a ventilation passage for cooling the control circuit board 14 that allows the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba to flow to the downstream exhaust ventilation passage 5Bc without passing through the heat exchanger 8. That is, the non-heat exchange air passage 31 causes the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba to flow to the downstream exhaust ventilation passage 5Bc without exchanging heat with the air supply airflow in the heat exchanger 8. It is a ventilation path for cooling. A part of the exhaust flow flowing through the upstream exhaust air passage 5Ba flows from the exhaust upstream side communication port 32 to the non-heat exchange air passage 31, flows through the non-heat exchange air passage 31, and then from the exhaust downstream side communication port 33. It flows through the downstream exhaust ventilation passage 5Bc.
  • a non-heat exchange air passage 11 is provided in a region on the rear surface 54 side of the heat exchanger 8 inside the housing 5. A part of the non-heat exchange air passage 11 is surrounded by the inner surface 54a of the rear surface 54.
  • the inner surface 54a of the rear surface 54 is the inner surface of the housing 5 on the rear surface 54.
  • the upstream side exhaust ventilation passage 5Ba is provided with an exhaust upstream side communication port 12 for communicating the upstream side exhaust ventilation passage 5Ba and the non-heat exchange air passage 11.
  • the upstream exhaust ventilation passage 5Ba and the non-heat exchange ventilation passage 11 are separated by a partition plate 81, and communicate with each other through the exhaust upstream side communication port 12.
  • the exhaust upstream side communication port 12 is a fifth communication port in the heat exchange type ventilation device 100, and is provided on the partition plate 81.
  • downstream exhaust ventilation passage 5Bc is provided with an exhaust downstream communication port 13 for communicating the downstream exhaust ventilation passage 5Bc and the non-heat exchange ventilation passage 11.
  • the downstream exhaust air passage 5Bc and the non-heat exchange air passage 11 are separated by a partition plate 82 and communicate with each other through the exhaust downstream communication port 13.
  • the exhaust downstream communication port 13 is the sixth communication port in the heat exchange type ventilation device 100, and is provided on the partition plate 82.
  • the non-heat exchange air passage 11 bypasses the heat exchanger 8 without exchanging heat with the air supply in the heat exchanger 8 for the exhaust flow flowing through the upstream exhaust air passage 5Ba, and the downstream exhaust air passage 5Bc. It is a ventilation path that flows through. A part of the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba flows from the exhaust upstream side communication port 12 to the non-heat exchange air passage 11, flows through the non-heat exchange air passage 11, and then from the exhaust downstream side communication port 13. It flows through the downstream exhaust ventilation passage 5Bc.
  • the heat exchange type ventilator 100 controls the operation of the heat exchange type ventilator 100 on the region corresponding to the non-heat exchange air passage 31 on the outer surface of the housing 5, that is, on the outer surface 92a of the outer side surface 92 of the maintenance cover 9.
  • the control circuit board 14 is arranged in contact with each other.
  • the control circuit board 14 is surrounded by a storage case (not shown) except for a surface that contacts the outer surface 92a of the outer side surface 92 of the maintenance cover 9. That is, the control circuit board 14 is arranged in contact with the outer surface of one surface of the housing 5 at a position facing the non-heat exchange air passage 31 with the outer side surface 92 of the maintenance cover 9 which is one surface of the housing 5 interposed therebetween. There is.
  • the heat radiating unit 15 for cooling the circuit board 14 is arranged. That is, the heat radiating portion 15 is arranged in the non-heat exchange air passage 31 in contact with the inner surface 92b of the outer side surface 92 of the maintenance cover 9 which is one surface of the housing 5.
  • the heat radiating unit 15 dissipates heat generated by the heat generating component mounted on the control circuit board 14 and transferred through the outer side surface 92 of the maintenance cover 9, and heat is generated mounted on the control circuit board 14. Cool the part.
  • the heat radiating unit 15 is composed of a heat radiating plate made of, for example, copper or aluminum.
  • the heat generated by the control circuit board 14 is dissipated to the exhaust flow passing through the non-heat exchange air passage 31 via the heat radiating unit 15.
  • the exhaust flow from which the heat generated by the control circuit board 14 is dissipated flows through the non-heat exchange air passage 31 and then flows from the exhaust downstream side communication port 33 to the downstream exhaust air passage 5Bc.
  • the heat generated by the control circuit board 14 flows from the non-heat exchange air passage 31 to the downstream exhaust air passage 5Bc, and is discharged to the outside through the exhaust port 2.
  • the heat generated by the control circuit board 14 can be discharged without passing through the heat exchanger 8 to cool the control circuit board 14.
  • a non-heat exchange air in which a heat radiating unit 15 is arranged instead of the heat exchanger 8 for a part of the air discharged from the room to the outside. Flow to road 31.
  • the heat generated by the control circuit board 14 is directly discharged to the outside without passing through the heat exchanger 8, so that the heat exchange function of the heat exchange type ventilator 100 is not impaired and the heat is dissipated from the control circuit board 14.
  • the heat exchanger 8 can exchange heat between the exhaust flow and the supply airflow without being affected by the heat radiation from the control circuit board 14.
  • the air supply air that has been heat-exchanged with the exhaust flow by the heat exchanger 8 enters the room.
  • the flow does not interfere with the cooling of the room. That is, in particular, a part of the heat radiated from the control circuit board 14 is not heat-exchanged by the heat exchanger 8 in the hot season such as summer.
  • the control circuit board 14 since the control circuit board 14 is cooled by using the exhaust flow before the heat exchange, the heat exchanger 8 controls by using the heat exchanged exhaust flow. Compared with the case of cooling the circuit board 14, the control circuit board 14 can be cooled without being affected by the temperature of the air supply airflow.
  • heat is generated mounted on the control circuit board 14 of the heat exchange type ventilator 100 without impairing the heat exchange function of the heat exchange type ventilator 100.
  • the parts can be cooled.
  • FIG. 6 shows the heat exchanger 8 in the heat exchange type ventilator 200 according to the second embodiment of the present invention, the upstream communication port 32 for exhaust, the downstream communication port 33 for exhaust, and the upstream communication port 34 for air supply. It is a schematic diagram which shows the arrangement with the downstream side communication port 35 for air supply.
  • FIG. 7 is a schematic view showing the arrangement of the non-heat exchange air passage 31, the control circuit board 14, the heat radiating unit 15, and the board temperature sensor 20 in the heat exchange type ventilation device 200 according to the second embodiment of the present invention.
  • the heat exchange type ventilation device 200 includes an upstream side communication port 34 for air supply, a downstream communication port 35 for air supply, an outside air temperature detection sensor 18, and an indoor temperature detection sensor 19. It has the same configuration as the heat exchange type ventilation device 100 according to the first embodiment described above, except that it is provided.
  • the upstream side air supply air passage 5Aa is provided with an air supply upstream side communication port 34 for communicating the upstream side air supply air passage 5Aa and the non-heat exchange air passage 31.
  • the upstream air supply air passage 5Aa and the non-heat exchange air passage 31 are separated by an internal side surface 91 on the rear surface 54 side of the maintenance cover 9, and communicate with each other through the air supply upstream air passage 34.
  • the air supply upstream communication port 34 is the third communication port in the heat exchange type ventilation device 200, and is provided on the inner side surface 91 of the maintenance cover 9.
  • the downstream air supply air passage 5Ac is provided with an air supply downstream communication port 35 that communicates the downstream air supply air passage 5Ac and the non-heat exchange air passage 31.
  • the downstream air supply air passage 5Ac and the non-heat exchange air passage 31 are separated by an internal side surface 91 of the maintenance cover 9 and communicate with each other through the air supply downstream communication port 35.
  • the air supply downstream communication port 35 is the sixth communication port in the heat exchange type ventilation device 200, and is provided on the inner side surface 91 of the maintenance cover 9.
  • the exhaust upstream side communication port 32 is a shutter that opens and closes the exhaust upstream side communication port 32 to communicate or close the upstream exhaust air passage 5Ba and the non-heat exchange air passage 31.
  • the side shutter 32s is arranged.
  • the exhaust upstream shutter 32s is the first shutter in the heat exchange type ventilator 200.
  • the exhaust downstream side communication port 33 is a shutter for opening and closing the exhaust downstream side communication port 33 to communicate or close the downstream side exhaust ventilation passage 5Bc and the non-heat exchange air passage 31. 33s are arranged.
  • the exhaust downstream shutter 33s is the second shutter in the heat exchange type ventilator 200.
  • the air supply upstream side communication port 34 is a shutter that opens and closes the air supply upstream side communication port 34 to communicate or close the upstream side air supply air passage 5Aa and the non-heat exchange air passage 31.
  • the upstream shutter 34s is arranged.
  • the air supply upstream shutter 34s is the third shutter in the heat exchange type ventilator 200.
  • the air supply downstream side communication port 35 is a shutter that opens and closes the air supply downstream side communication port 35 to communicate or close the downstream side air supply air passage 5Ac and the non-heat exchange air passage 31.
  • the downstream shutter 35s for use is arranged.
  • the downstream shutter 35s for air supply is the fourth shutter in the heat exchange type ventilator 200.
  • An outside air temperature detection sensor 18 that detects the temperature of the outside air, which is the airflow flowing through the upstream side air supply ventilation passage 5Aa, is arranged in the upstream side air supply ventilation passage 5Aa.
  • the outside air temperature detection sensor 18 can communicate information with the control circuit board 14.
  • An indoor temperature detection sensor 19 that detects the temperature of the indoor air, which is the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba, is arranged in the upstream exhaust ventilation passage 5Ba.
  • the indoor temperature detection sensor 19 can communicate information with the control circuit board 14.
  • a board temperature sensor 20 for detecting the heat generation state of the control circuit board 14 is arranged on the control circuit board 14.
  • the board temperature sensor 20 detects the temperature of the control circuit board 14 and detects the heat generation state of the control circuit board 14.
  • the position of the control circuit board 14 that detects the temperature by the board temperature sensor 20 may be appropriately determined at an arbitrary position.
  • the substrate temperature sensor 20 detects, for example, the temperature of a portion of the control circuit board 14 where the temperature is relatively high.
  • the board temperature sensor 20 can communicate information with the control circuit board 14.
  • FIG. 8 is a flowchart showing a procedure for cooling the control circuit board 14 in the heat exchange type ventilator 200 according to the second embodiment of the present invention.
  • FIG. 9 is a block diagram showing a functional configuration of the heat exchange type ventilation device 200 according to the second embodiment of the present invention.
  • the control unit 40 controls the operation of the heat exchange type ventilation device 200.
  • the control unit 40 is realized by electronic components mounted on the control circuit board 14, and includes an air supply blower 6, an exhaust blower 7, an outside air temperature detection sensor 18, an indoor temperature detection sensor 19, a board temperature sensor 20, and an upstream shutter for exhaust. It is possible to communicate with the 32s, the downstream shutter 33s for exhaust, the upstream shutter 34s for air supply, and the downstream shutter 35s for air supply.
  • the control unit 40 is realized, for example, as a processing circuit having a hardware configuration shown in FIG.
  • FIG. 10 is a diagram showing an example of the hardware configuration of the processing circuit according to the second embodiment of the present invention.
  • the control unit 40 is realized by the processor 101 executing the program stored in the memory 102.
  • a plurality of processors and a plurality of memories may cooperate to realize the above function.
  • a part of the functions of the control unit 40 may be implemented as an electronic circuit, and the other part may be realized by using the processor 101 and the memory 102.
  • step S10 the heat exchange type ventilator 200 starts operation.
  • the exhaust blower 7 operates so that the exhaust flow flows from the upstream exhaust ventilation passage 5Ba toward the downstream exhaust ventilation passage 5Bc.
  • a part of the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba flows from the exhaust upstream side communication port 32 to the non-heat exchange air passage 31, and after flowing through the non-heat exchange air passage 31, the exhaust downstream side communication. It flows from the port 33 to the downstream exhaust ventilation passage 5Bc.
  • the air supply air blower 6 operates so that the air supply flows from the upstream side air supply ventilation passage 5Aa toward the downstream side air supply ventilation passage 5Ac. At this time, a part of the air supply air flowing through the upstream air supply air passage 5Aa flows from the air supply upstream air passage 34 to the non-heat exchange air passage 31, and after flowing through the non-heat exchange air passage 31, is used for air supply. It flows from the downstream side communication port 35 to the downstream side air supply ventilation passage 5Ac.
  • step S20 the outside air temperature detection sensor 18 detects the temperature of the outside air, which is the air supply flowing through the upstream air supply ventilation passage 5Aa.
  • the outside air temperature detection sensor 18 transmits the detected outside air temperature information to the control circuit board 14.
  • step S30 the indoor temperature detection sensor 19 detects the temperature of the indoor air, which is the exhaust flow flowing through the upstream exhaust ventilation passage 5Ba.
  • the indoor temperature detection sensor 19 transmits the detected indoor air temperature information to the control circuit board 14.
  • step S40 the control unit 40 compares the temperature of the outside air with the temperature of the indoor air, and determines whether or not the temperature of the indoor air is lower than the temperature of the outside air.
  • the control unit 40 is realized by electronic components mounted on the control circuit board 14. If it is determined that the temperature of the indoor air is lower than the temperature of the outside air, the result is Yes in step S40, and the process proceeds to step S50. If it is determined that the temperature of the indoor air is not lower than the temperature of the outside air, the result is No in step S40, and the process proceeds to step S60.
  • step S50 the control unit 40 controls to close the shutter of the communication port of the air supply ventilation path 5A and open the shutter of the communication port of the exhaust ventilation path 5B. That is, the control unit 40 controls to close the air supply upstream shutter 34s and the air supply downstream shutter 35s, and open the exhaust upstream shutter 32s and the exhaust downstream shutter 33s.
  • the heat generated by the control circuit board 14 is dissipated to the exhaust flow passing through the non-heat exchange air passage 31 via the heat radiating unit 15.
  • the exhaust flow from which the heat generated by the control circuit board 14 is dissipated flows through the non-heat exchange air passage 31 and then flows from the exhaust downstream side communication port 33 to the downstream exhaust air passage 5Bc.
  • the heat generated by the control circuit board 14 flows from the non-heat exchange air passage 31 to the downstream exhaust air passage 5Bc, and is discharged to the outside through the exhaust port 2.
  • the heat generated by the control circuit board 14 can be discharged without passing through the heat exchanger 8 to cool the control circuit board 14. After that, the process returns to step S20.
  • step S60 the control unit 40 compares the temperature of the outside air with the temperature of the indoor air, and determines whether or not the temperature of the indoor air is higher than the temperature of the outside air. If it is determined that the temperature of the indoor air is higher than the temperature of the outside air, the result is Yes in step S60, and the process proceeds to step S70. If it is determined that the temperature of the indoor air is not higher than the temperature of the outside air, the result is No in step S60, and the process returns to step S20.
  • step S70 the control unit 40 controls to close the shutter of the communication port of the exhaust ventilation path 5B and open the shutter of the communication port of the air supply ventilation path 5A. That is, the control unit 40 controls to close the exhaust upstream side shutter 32s and the exhaust downstream side shutter 33s, and open the air supply upstream side shutter 34s and the air supply downstream side shutter 35s.
  • the heat generated by the control circuit board 14 is dissipated to the air supply air passing through the non-heat exchange air passage 31 via the heat radiating unit 15.
  • the air supply airflow in which the heat generated by the control circuit board 14 is dissipated flows through the non-heat exchange air passage 31 and then flows from the air supply downstream communication port 35 to the downstream air supply air passage 5Ac.
  • the heat generated by the control circuit board 14 flows from the non-heat exchange air passage 31 to the downstream air supply air passage 5Ac, and is discharged into the room through the air supply port 4.
  • the heat generated by the control circuit board 14 can be discharged without passing through the heat exchanger 8 to cool the control circuit board 14. After that, the process returns to step S20.
  • the heat exchange type ventilator 200 according to the second embodiment has the same effect as the heat exchange type ventilator 100 according to the first embodiment described above.
  • the heat exchange type ventilator 200 detects the temperature of the outside air and the temperature of the indoor air, and when the temperature of the indoor air is lower than the temperature of the outside air, the upstream side for supply air.
  • the shutter 34s and the downstream shutter for air supply 35s are closed, and the upstream shutter 32s for exhaust and the downstream shutter 33s for exhaust are opened.
  • the exhaust flow can flow through the non-heat exchange air passage 31 to cool the control circuit board 14 without interfering with the heat exchange function of the heat exchange type ventilation device 200.
  • the control circuit board 14 can be cooled while assisting the heat exchange function of the heat exchange type ventilation device 200 by flowing the air supply air through the non-heat exchange air passage 31.
  • the lower temperature airflow is flowed through the non-heat exchange type air passage 31 to cool the control circuit board 14. Since it is used as an air flow, the control circuit board 14 can be cooled more efficiently.
  • the control circuit board 14 can be cooled without impairing its function.
  • the control circuit board 14 is cooled and a part of the heat radiated from the control circuit board 14 is transferred into the room. Therefore, the control circuit board 14 can be cooled while assisting the heat exchange function of the heat exchange type ventilation device 200.
  • FIG. 11 is a flowchart showing a procedure for cooling the control circuit board 14 in the heat exchange type ventilator 200 according to the third embodiment of the present invention.
  • step S10 the heat exchange type ventilator 200 starts operation.
  • step S110 the substrate temperature sensor 20 detects the temperature of the control circuit board 14.
  • the board temperature sensor 20 transmits the detected temperature information of the control circuit board 14 to the control circuit board 14.
  • step S120 the control unit 40 compares the temperature of the control circuit board 14 with the predetermined first threshold value, and determines whether or not the temperature of the control circuit board 14 is lower than the first threshold value. If it is determined that the temperature of the control circuit board 14 is lower than the first threshold value, the result is Yes in step S120, and the process proceeds to step S130. If it is determined that the temperature of the control circuit board 14 is not lower than the first threshold value, the result is No in step S120, and the process proceeds to step S140.
  • step S130 the control unit 40 determines that "cooling control of the control circuit board 14 is not necessary" and controls to close the shutter of the communication port of the air supply ventilation path 5A and the shutter of the communication port of the exhaust ventilation path 5B. .. That is, the control unit 40 controls to close the exhaust upstream side shutter 32s, the exhaust downstream side shutter 33s, the air supply upstream side shutter 34s, and the air supply downstream side shutter 35s. After that, the process returns to step S110.
  • step S140 the control unit 40 compares the temperature of the control circuit board 14 with a predetermined second threshold value, and determines whether or not the temperature of the control circuit board 14 is higher than the second threshold value. If it is determined that the temperature of the control circuit board 14 is not higher than the second threshold value, the result is No in step S140, and the process returns to step S110. If it is determined that the temperature of the control circuit board 14 is higher than the second threshold value, the result is Yes in step S140, and the process proceeds to step S20 described above. In this case, if No is obtained after step S50, after step S70, and in step S60, the process returns to step S110.
  • the first threshold value and the second threshold value may be the same temperature, or the second threshold value may be a temperature higher than the first threshold value.
  • the first threshold value and the second threshold value may be appropriately set according to the type of heat radiating component mounted on the control circuit board 14, the heat resistant temperature, and the like.
  • the third embodiment has the same effect as the heat exchange type ventilation device 100 according to the first embodiment described above.
  • a part of the supply airflow or a part of the exhaust flow when it is not necessary to cool the control circuit board 14, that is, when there is no problem in cooling the control circuit board 14 by natural heat dissipation, a part of the supply airflow or a part of the exhaust flow. Is not flowed into the non-heat exchange air passage 31, so that all the air in the supply airflow or the exhaust flow can be used for heat exchange in the heat exchanger 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

La présente invention concerne un dispositif de ventilation de type à échange de chaleur (100) comprenant : un trajet d'air sans échange de chaleur (31) qui raccorde un trajet de ventilation d'échappement en amont, qui est un trajet de ventilation d'échappement en amont d'un échangeur de chaleur (8), et un trajet de ventilation d'échappement en aval, qui est un trajet de ventilation d'échappement en aval de l'échangeur de chaleur (8), sans passer à travers l'échangeur de chaleur (8) ; une carte de circuit imprimé de commande (14) disposée en contact avec une surface externe (92a) d'un logement à un emplacement faisant face au trajet d'air sans échange de chaleur (31), un côté du logement étant intercalé entre eux ; et une partie de rayonnement de chaleur (15) disposée en contact avec une surface interne (92b) à l'intérieur du trajet d'air sans échange de chaleur (31).
PCT/JP2019/024389 2019-06-19 2019-06-19 Dispositif de ventilation de type à échange de chaleur Ceased WO2020255311A1 (fr)

Priority Applications (2)

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JP2021528548A JP7109672B2 (ja) 2019-06-19 2019-06-19 熱交換型換気装置
PCT/JP2019/024389 WO2020255311A1 (fr) 2019-06-19 2019-06-19 Dispositif de ventilation de type à échange de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/024389 WO2020255311A1 (fr) 2019-06-19 2019-06-19 Dispositif de ventilation de type à échange de chaleur

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WO2020255311A1 true WO2020255311A1 (fr) 2020-12-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023142515A1 (fr) * 2022-01-27 2023-08-03 青岛海信日立空调系统有限公司 Ventilateur d'air frais

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Publication number Priority date Publication date Assignee Title
JPH07332727A (ja) * 1994-06-06 1995-12-22 Daikin Ind Ltd 熱交換換気装置
JPH08170847A (ja) * 1994-12-17 1996-07-02 Daikin Ind Ltd 熱交換換気装置
KR20080098859A (ko) * 2007-05-07 2008-11-12 주식회사 유니온금속 욕실용 건조환기장치
JP2011075117A (ja) * 2009-09-29 2011-04-14 Sanyo Electric Co Ltd 外気処理空気調和機
JP2014228211A (ja) * 2013-05-23 2014-12-08 三菱電機株式会社 熱交換換気装置

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Publication number Priority date Publication date Assignee Title
JPH0352000Y2 (fr) * 1985-01-21 1991-11-08
JPH04222339A (ja) * 1990-12-14 1992-08-12 Mitsubishi Electric Corp 換気装置
JP4867727B2 (ja) * 2007-03-13 2012-02-01 パナソニック株式会社 冷却装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332727A (ja) * 1994-06-06 1995-12-22 Daikin Ind Ltd 熱交換換気装置
JPH08170847A (ja) * 1994-12-17 1996-07-02 Daikin Ind Ltd 熱交換換気装置
KR20080098859A (ko) * 2007-05-07 2008-11-12 주식회사 유니온금속 욕실용 건조환기장치
JP2011075117A (ja) * 2009-09-29 2011-04-14 Sanyo Electric Co Ltd 外気処理空気調和機
JP2014228211A (ja) * 2013-05-23 2014-12-08 三菱電機株式会社 熱交換換気装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023142515A1 (fr) * 2022-01-27 2023-08-03 青岛海信日立空调系统有限公司 Ventilateur d'air frais

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