Heat exchange device

Patent metadata

Field	Value
Publication number	US-11940173-B2
Application number	US-202117394036-A
Country	US
Kind code	B2
Filing date	Aug 4, 2021
Priority date	Nov 30, 2020
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

The present application provides a heat exchange device. The heat exchange device includes: a case, an interior of which is formed into an air-supply inflow space, an exhaust inflow space, an air-supply outflow space and an exhaust outflow space separated from each other, wherein a first extension wall is provided between the air-supply inflow space and the exhaust outflow space; and a heat exchange unit disposed in the case, and the air-supply inflow space and the air-supply outflow space communicate with each other by the heat exchange unit to form an air-supply air path, and the exhaust inflow space and the exhaust outflow space communicate with each other by the heat exchange unit to form an exhaust air path, wherein the air-supply air path and the exhaust air path exchange heat when passing through the heat exchange unit; the first extension wall is provided with a circulation air port communicating the air-supply inflow space and the exhaust outflow space, wherein the circulation air port may be selectively opened and closed. The heat exchange device may not only provide indoor air circulation but also ensure heat exchange efficiency.

First claim

The invention claimed is:

1. A heat exchange device, comprising:
a case, an interior of which is formed into an air-supply inflow space, an exhaust inflow space, an air-supply outflow space and an exhaust outflow space separated from each other, wherein a first extension wall is provided between the air-supply inflow space and the exhaust outflow space; and
a heat exchange unit disposed in the case, and the air-supply inflow space and the air-supply outflow space communicate with each other through the heat exchange unit to form an air-supply air path, and the exhaust inflow space and the exhaust outflow space communicate with each other through the heat exchange unit to form an exhaust air path, wherein the air-supply air path and the exhaust air path exchange heat when passing through the heat exchange unit,
wherein,
the first extension wall is provided with a circulation air port communicating the air-supply inflow space and the exhaust outflow space, wherein the circulation air port may be selectively opened and closed,
the case further comprises:
an air-supply air inlet configured to allow air in a first space to enter the case and communicate with the air-supply inflow space;
an air-supply air outlet configured to allow air entering the case to blow out toward a second space and communicate with the air-supply outflow space;
an air-supply air fan disposed in the air-supply outflow space and configured to guide the air from the air-supply air inlet into the case and blow toward the air-supply air outlet;
an exhaust air inlet configured to allow air in the second space to enter the case and communicate with the exhaust inflow space;
an exhaust air outlet configured to allow the air entering the case to blow out toward the first space and communicate with the exhaust outflow space; and
an exhaust air fan disposed transversely in parallel with the air-supply air fan inside the exhaust outflow space and configured to guide the air from the exhaust air inlet into the case and blow toward the exhaust air outlet; and
the heat exchange device further comprises:
a circulation air path formed by opening the circulation air port and closing the air-supply air inlet and the exhaust air outlet, wherein air blows from the exhaust air inlet to the air-supply air outlet through the circulation air port.

2. The heat exchange device of claim 1 , wherein,
the heat exchange device further comprises a circulation damper for selectively opening or closing the circulation air port.

3. The heat exchange device of claim 1 , wherein, the heat exchange unit comprises a first heat exchange core and a second heat exchange core longitudinally stacked on the first heat exchange core.

4. The heat exchange device of claim 1 , wherein,
the heat exchange device further comprises an air path switch unit disposed on an upstream side of the circulation air port to selectively switch the circulation air port and an exhaust air outlet to an open state or a closed state, and
the air path switch unit comprises:
an air path switch motor; and
a switch portion, which selectively switches the circulation air port and the exhaust air outlet to an open state or a closed state by rotation.

5. The heat exchange device of claim 4 , wherein,
the switch portion comprises:
a rotation shaft; and
an air path switch plate, including a first plate on a side close to the rotation shaft and a second plate on a side far away from the rotation shaft, and the first plate and the second plate form a V-shape.

6. The heat exchange device of claim 1 , wherein, the heat exchange unit comprises: an air-supply suction port communicating with the air-supply inflow space; an air-supply vent port disposed opposite to the air-supply suction port and communicating with the air-supply outflow space; an exhaust suction port communicating with the exhaust inflow space; an exhaust vent port disposed opposite to the exhaust suction port and communicating with the exhaust outflow space; a first lateral edge formed by intersecting a plane where the air-supply suction port is located and a plane where the exhaust vent port is located; and a second lateral edge formed by intersecting a plane where the air-supply vent port is located and a plane where the exhaust suction port is located; a first side surface adjacent to the plane where the air-supply vent port is located and the plane where the exhaust vent port is located; and a second side surface adjacent to the plane where the air-supply suction port is located and the plane where the exhaust suction port is located.

7. The heat exchange device of claim 6 , wherein,
the air-supply air fan and the exhaust air fan are disposed in the lower part of the case.

8. The heat exchange device of claim 6 , wherein,
the heat exchange device further comprises a printed circuit board configured to control the air-supply air fan and/or the exhaust air fan, and a circuit board box configured to receive the printed circuit board,
wherein the circuit board box is disposed on the lower part of the exhaust inflow space.

9. The heat exchange device of claim 6 , wherein,
the case comprises
a first side wall, a second side wall disposed opposite to the first side wall,
a front wall and a rear wall disposed between the first side wall and the second side wall and disposed opposite to each other,
wherein the first extension wall is formed by extending from the first lateral edge to the first side wall;
a second extension wall separating the exhaust inflow space and the air-supply outflow space is formed by extending from the second lateral edge to the second side wall; and
a third extension wall separating the exhaust outflow space and the air-supply outflow space is formed by extending from the first side surface to the rear wall.

10. The heat exchange device of claim 9 , wherein,
the heat exchange device further comprises:
a circulation guide portion disposed on a downstream side of the circulation air port, and guiding air from the circulation air port to blow toward the air-supply suction port of the heat exchange unit.

11. The heat exchange device of claim 10 , wherein,
the circulation guide portion comprises:
a circulation guide side surface extending from the first extension wall toward an air-supply inflow space side and toward the air-supply suction port side of the heat exchange unit;
a circulation guide top surface extending from an upper edge of the circulation guide side surface toward the first extension wall; and
a circulation guide bottom surface extending from a lower edge of the circulation guide side surface toward the first extension wall,
wherein the circulation guide top surface, the circulation guide side surface and the circulation guide bottom surface form a circulation guide air outlet opposite to the air-supply suction port.

12. The heat exchange device of claim 11 , wherein,
the circulation guide top surface comprises an inclined surface inclined from the first extension wall toward the front wall of the case and toward the lower part of the case.

13. The heat exchange device of claim 9 , wherein,
a distance between the first lateral edge and the first side wall is greater than a distance between the second lateral edge and the second side wall.

14. The heat exchange device of claim 13 , wherein,
the heat exchange device further comprises:
a circulation guide portion disposed on a downstream side of the circulation air port, and guiding air from the circulation air port to blow toward the air-supply suction port of the heat exchange unit.

15. The heat exchange device of claim

Assignees

• Panasonic Eco Sys Guangdong Co

Inventors

• Zhang Jun
• Yang Zhenhong
• Guan Shiyan

Classifications

• F24F13/20 Primary

  Casings or covers · CPC title

• F24F7/08 Primary

  with separate ducts for supplied and exhausted air {with provisions for reversal of the input and output systems} · CPC title

• F24F12/006 Primary

  using an air-to-air heat exchanger (F24F12/002 takes precedence) · CPC title

• F24F11/89

  Arrangement or mounting of control or safety devices · CPC title

• F24F13/02

  Ducting arrangements · CPC title