JP2544525B2 - Ventilation status indicator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state quantity display device provided in a ventilation device for performing ventilation by supplying and exhausting air.

[0002]

2. Description of the Related Art As is well known, some ventilation systems for supply and exhaust air involve heat exchange between the supply and exhaust air. In such a ventilator, for the convenience of the user, the state quantity such as the outside air temperature, the room temperature, the humidity or the pollution degree of the room air is detected by various detecting means and is displayed by the displaying means. There is something. For example, regarding the outside air temperature, outside air temperature detecting means is provided near the outdoor side end of the air supply path for taking in outside air, and the outside air temperature based on the output detected by the outside air temperature detecting means is displayed by the display means. Has become.

In the ventilator having the above structure, for example, the outside air temperature is displayed as shown in FIG. That is, the outside air temperature detecting means continuously detects the temperature in the vicinity of the outdoor side end of the air supply passage of the ventilation device regardless of the operation stop of the ventilation device, and the outside air temperature is displayed by the display output formed based on this detection output. The display means operates to display. The outside air temperature displayed by the outside air temperature display means is associated with the detection value of the outside air temperature and soil detection means, and normally, as shown in FIG. 5, at the start of the ventilation operation, the temperature decreases below the display temperature up to that point. It will be.

[0004]

In the conventional ventilator having the above-mentioned structure, the state quantity with high accuracy is displayed during the ventilation operation, but the display is apologized when the ventilator is stopped. It includes issues to be solved. That is, for example, with respect to the outside air temperature, the outside air temperature detecting means detects the temperature near the indoor and outdoor ends in the air supply path of the ventilation device, but the temperature environment of the part does not necessarily match the outside air environment, and Due to conduction of heat from the structure and conduction of heat from the lead wire of the outside air temperature detecting means, the temperature changes to a temperature approaching room temperature when the air flow is stopped.

The present invention has been made in order to solve such a conventional problem, and an object thereof is to obtain a state quantity display device of a ventilation device capable of accurately displaying the state quantity.

[0006]

A state quantity display device for a ventilator according to the present invention includes an exhaust passage having an exhaust blower for exhausting indoor air to the outside, and a supply for supplying outside air to the room. It is provided with two air passages of an air supply passage having an air blower, and the state quantity such as the outside air temperature or the indoor temperature is detected by the detection means provided in the air passage of the ventilation device, and this is displayed by the display means. Thus, the air passage provided with the detection means is blown with air at a constant interval for a short period even when the ventilation operation is stopped, and the state quantity based on the detection value of the detection means in this blowing state is displayed on the display means. It is a thing.

[0007]

In the state quantity display device of the ventilator according to the present invention, the disturbance element received by the structure of the ventilator itself or the accessory parts at the location where the detection means for detecting the state quantity is provided is eliminated by the air blow to prepare the detection environment. Therefore, it is possible to accurately display the state quantity based on the detection means.

[0008]

1 to 4 show an embodiment of the present invention. FIG. 1 is a sectional view showing the structure of a ventilation device, and FIG. 2 is a circuit diagram showing the structure of an electric circuit. 3 is an explanatory diagram showing an example of a sampling and display algorithm of the state quantity, and FIG. 4 is an explanatory diagram showing an operation sequence and a display quantity of the state quantity display device. First, the ventilator will be described with reference to FIG. 1. This ventilator is a wall-mounted type that is mounted in a mounting opening formed in a wall 1 that separates the inside and the outside of a room. Two systems of air passages are formed: an exhaust passage 4 provided with an exhaust blower 3 for exhausting air to the outside of the room, and an air supply passage 6 provided with an air supply blower 5 for supplying outside air to the room. A grill 9 having a supply air outlet 7 and an exhaust suction port 8 is detachably mounted on the front surface of the main body outer casing 2 on the indoor side, and the supply air outlet 7 is provided at the end of the supply passage 6 of the main body outer casing 2. The exhaust suction port 8 is connected to the end of the exhaust passage 4 of the outer casing 2 in an independent state. The air supply passage 6 and the exhaust passage 4 are partially formed by the two working fluid passages of the heat exchanger 10 incorporated in the main body outer casing 2. The exhaust port 11 that is the outlet end of the exhaust passage 4 and the outside air intake 1 that is the inlet end of the air supply passage 6
2 are individually opened at the rear end of the main body outer casing 2 on the indoor side so as to face the outside. The grill 9 is provided with a display means 13 for notifying the user of the amount of state such as the room temperature, the humidity, the outside air temperature, and the pollution degree of the room air as ventilation operation information. The display means 13 displays the state quantity based on the detection output by the detection means provided in the air passage of the ventilation device. For example, with respect to the outside air temperature, the outside air temperature detecting means 1 mounted near the outside air intake 12 in the air supply passage 6
The outside air temperature detected by 4 is displayed. As for the electric circuit, for example, as shown in FIG. 2, a control circuit 15 including a microcomputer is connected to a motor 16 for driving the air supply blower 5 and the exhaust air blower 3, a display means 13, a detection means and the like. The control circuit 15 causes the forced ventilation operation for a constant interval, for example, about 5 minutes at an interval of 30 minutes regardless of the operating state of the ventilation device, and outputs the detection output from the detection means for, for example, 1 minute at the end of the forced ventilation operation. A value obtained by sampling and averaging this is displayed by the display means 13 (see FIG. 3). Even when the ventilator is not operating, the forced ventilation operation is performed by the sampling instruction, and the detection output from the detection means is sampled for, for example, 1 minute at the end of the forced ventilation operation, and the averaged value is stored. , Used as display output for the next 30 minutes.

In the ventilator having the above-mentioned structure, as shown in FIG. 4, for example, the outside air temperature does not always correspond to the detected value of the outside air temperature detecting means 14, and the outside air temperature is displayed on the display means 13. That is, the display of the outside air temperature by the display means 13 is a value obtained by averaging the detection output from the outside air temperature detection means 14 for one minute at the end of the forced ventilation operation of about 5 minutes executed at 30 minute intervals. This value is
The detected value by the detection means after removing the disturbance element received by the structure of the ventilation system itself and the accessory parts at the place where the detection means for detecting the state quantity such as the outside air temperature and the room temperature is attached by the ventilation to prepare the detection environment Since it is based on this, accurate information can be obtained and appropriate ventilation information can be obtained for the user.

The interval of the forced ventilation operation for adjusting the detection environment may be about 1 hour, and the ventilation time is 5 hours.
It suffices if it is enough, but it may be about 3 to 4 minutes.

[0011]

As is apparent from the above description of the embodiments, according to the state quantity display device of the ventilation device of the present invention,
An accurate display of the state quantity based on the detection means is provided because the detection environment is prepared by eliminating the disturbance element received by the structure of the ventilation system itself and the accessory parts at the place where the detection means for detecting the state quantity is provided by forced ventilation. It is possible and able to provide the user with information regarding accurate and proper ventilation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of a ventilation device according to the present invention.

FIG. 2 is a circuit configuration diagram showing a configuration of an electric circuit according to the present invention.

FIG. 3 is an explanatory diagram showing an example of a state quantity sampling and display algorithm according to the present invention.

FIG. 4 is an explanatory diagram showing an operation sequence and a display amount of the state quantity display device according to the present invention.

FIG. 5 is an explanatory diagram showing an operation sequence and a display amount of a conventional state quantity display device.

[Explanation of symbols]

 3 Exhaust Blower 4 Exhaust Path 5 Air Supply Blower 6 Air Supply Path 13 Display Means 14 Outside Air Temperature Detection Means

Claims (1)

(57) [Claims] 1. An external air passage comprising two systems, an exhaust passage having an exhaust blower for exhausting indoor air to the outside and an air supply passage having an air supply blower for supplying outside air to the interior. In a ventilation device configured to detect a state quantity such as temperature or humidity or the degree of pollution of indoor air by the detection means provided in the air passage, and to display this by the display means, with respect to the air passage provided with the detection means. A state display device for a ventilator characterized in that even during ventilation operation is stopped, air is blown at regular intervals for a short period of time, and the state quantity based on the detection value of the detection means in this air blow state is displayed on the display means. .