JPH0410509Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an air conditioning ventilation fan that simultaneously takes in outside air and exhausts indoor air through a built-in heat exchanger.

[Conventional technology]

Air conditioning ventilation fans have an intake path for introducing outside air into the room and an exhaust path for exhausting indoor air to the outdoors. Even when not in operation, the indoor and outdoor areas are connected through the intake and exhaust paths. in a state. Therefore,
If the air-conditioning ventilation fan is stopped during cooling or heating, outside air will enter the room through the intake and exhaust channels, impairing the cooling and heating atmosphere in the room. These inconveniences in the stopped state can be solved, for example, by
As disclosed in the above publication, the problem can be solved by making the intake passage and the exhaust passage closed with a shielding plate when not in operation. Many air conditioning ventilation fans that have opening/closing means in the intake and exhaust passages have a front panel attached to the front of the ventilation fan body in order to provide the opening/closing means (see Japanese Utility Model Publication No. 188028/1983). The front panel of an air conditioning ventilation fan having such a front panel functions as a cover for the opening/closing means and an intake/exhaust end member.

[Problem that the invention attempts to solve]

The above-mentioned conventional air conditioning ventilation fan has a complicated configuration, requiring an additional shielding plate in addition to the front panel, and the ventilation fan itself has separate air intake and exhaust passages that are separated from the front panel and the ventilation fan body. There was a problem in that the area between the two was in close proximity to each other, which could cause interaction, and intake and exhaust short circuits where the intake flow was induced by the exhaust flow were likely to occur.

This invention was made to solve this problem, and not only can the intake path and exhaust path be opened and closed only by the front panel provided on the front of the ventilation fan body, but also the Another object of the present invention is to obtain an air-conditioning ventilation fan in which the flow path of the intake air flow and the flow path of the exhaust air flow are independent, and short circuits between the intake and exhaust air are less likely to occur.

[Means for solving problems]

The air conditioning ventilation fan according to this invention has an intake passage and an exhaust passage which are independent of each other, each of which is partially constituted by a heat exchange passage of a built-in heat exchanger. is equipped with a ventilation fan body in which a blower for forming each exhaust flow is installed, and each opening end of each of the intake passage and the exhaust passage is opened side by side on the front side of the room; A front panel that can be moved toward and away from the front surface of the ventilation fan main body is provided, and between the front surface of the ventilation fan main body and the front panel, an opening end of an intake path and an opening end of an exhaust path are connected to each other. A partition is provided in the middle, and a partition plate is provided that expands and contracts as the front panel moves toward and away from the front panel.

[Effect]

In this invention, by moving the front panel toward and away from the front of the ventilation fan body, it is possible to open and close each opening end of the intake passage and exhaust passage on the front of the ventilation fan body. There is a partition plate in between that allows the front panel to move toward and away from the front panel, and this partition plate constantly divides the front panel and the front of the ventilation fan body into the intake path side and the exhaust path side, so the intake flow is is less likely to be attracted to the exhaust flow.

[Example of idea]

The air conditioning ventilation fan as an embodiment of the present invention shown in FIG. A total heat exchanger, an air intake blower for sucking outside air, and an exhaust blower for sucking indoor air are incorporated into the front frame 2, and the front frame 2 is fitted into the front frame 2 in the center thereof. It has a front panel 4 that can be pulled out in front of 2 and separated from the front frame 2. The ventilation fan main body 3 is configured with an independent intake passage and an exhaust passage, each of which includes a heat exchange passage of a total heat exchanger as a part of the passage.
An intake air blower is installed in the intake path, and an exhaust air blower is installed in the exhaust path. The air intake passage is a passage for introducing outside air into the room, and one open end thereof opens at the back of the main body frame 1, and the other open end 5 opens at the front of the front frame 2 on the indoor side.
The exhaust passage is a passage for exhausting indoor air to the outdoors (outdoors), and one opening end thereof is opened at the back of the main body frame 1, and the other opening end 6 is opened at the front of the front frame 2 on the indoor side. are doing. In the illustrated example, the opening ends 5 and 6 of the intake passage and the exhaust passage on the indoor side are opened adjacent to the center of the front frame 2 side by side. The central part of the front frame 2 where each of these opening ends 5 and 6 is open is as follows:
This is a rectangular recess, and the front panel 4 is configured to loosely fit into this recess. The front panel 4 is attached to the ventilation fan main body 3 so that it can be moved toward and away from the ventilation fan body 3 by pulling the front panel 4 forward in the away direction, and to the rear of the front panel 4 in the approach direction. Move by pushing back. Regarding the legs for moving the front panel 4 in the direction toward and away from the front panel, several fixed legs may be loosely fitted into guide holes formed on the side of the ventilation fan main body 3, or the legs themselves may be structured to be extendable and retractable. When the front panel 4 is moved apart, a gap S is created at the outer periphery of the front frame 2 and the front panel 4, and the opening ends 5 and 6 of the intake passage and the exhaust passage communicate with the room through this gap S. do. When the front panel 4 is moved in the proximal direction, the front panel 4 fits into the recess of the front frame 2, its profile is continuous with the profile of the front frame 2, and it fits in a manner that can be said to be a part of the front frame 2. The open ends 5, 6 of the air passage and the exhaust air passage on the indoor side are closed. Between the front panel 4 that enables such movement, the ventilation fan main body 3, and the front side of the room, the opening ends 5 and 6 of the intake and exhaust channels are partitioned in the middle, and both ends are separated by the front panel 4 and the ventilation fan main body. A partition plate 7 fixed to 3 and 3 is provided. The partition plate 7 is made of a flexible material, or has a structurally expandable structure so that it can expand and contract in accordance with the movement of the front panel 4 in the direction toward and away from the front panel. In the figure, reference numeral 8 indicates a total heat exchanger, 9 indicates a blower, 10 indicates an air intake path, 11 indicates an exhaust path, and 12 and 13 indicate each open end on the back side.

Therefore, when the air conditioning ventilation fan of this example is not in operation, by pushing the front panel 4 toward the adjacent side, the front panel 4 closes the opening ends 5 and 6 of the air intake passage and the exhaust passage on the indoor side. During operation, the front panel 4 can be pulled forward, that is, in the direction of separation, to close each opening end 5 on the indoor side of the intake passage and the exhaust passage.
6 can be opened to perform normal air conditioning operation. During operation, there is a partition plate 7 between the front panel 4 and the front surface of the ventilation fan body 3 that separates the opening ends 5 and 6 of the intake passage and the exhaust passage, so that the intake air flow is induced into the exhaust air flow. There will be no inconvenience caused when the child is brought back outside.

[Effect of idea]

As is clear from the above description of the embodiments, the air conditioning ventilation fan of the present invention is designed so that the front panel can be moved toward and away from the front of the ventilation fan body. This operation allows you to open and close each opening end of the intake and exhaust channels that open on the front of the ventilation fan body. In addition, there is a retractable partition plate between the front panel and the ventilation fan body that constantly separates each opening end, so the intake side and exhaust side at this part are independent, preventing short circuits between intake and exhaust. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an air conditioning ventilation fan as an embodiment of the present invention, and FIG. 2 is a plan view of the air conditioning ventilation fan. In the figure, 3 is the main body of the ventilation fan, 4 is the front panel, 5 and 6 are the opening ends, and 7 is the partition plate. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] It has an intake passage 10 and an exhaust passage 11 which are independent from each other, each of which is partially constituted by a heat exchange passage of a built-in heat exchanger 8. incorporates a blower 9 that forms an exhaust flow, the opening ends 5 and 6 of each of the suction passage 10 and the exhaust passage 11 are lined up and opened on the front side of the room, and the opening ends 12 and The ventilating fan main body 3 has openings 13 on the back side of the ventilation fan main body 3, and a front panel 4 that is attached to the front surface of the ventilation fan main body 3 and can move toward and away from the front surface of the ventilation fan main body 3. Between the front surface of the ventilation fan main body 3 and the front panel 4, an open end 5 on the front surface of the intake path 10 and an open end 6 on the front surface of the exhaust path 11 are partitioned between the two, and the front panel 4 is separated in the approaching and separating direction. An air conditioning ventilation fan characterized by being provided with an elastic partition plate 7 that expands and contracts as it moves.