JPH04334795A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide different performance with a change in energizing rate of a convective air blower. CONSTITUTION:In a convective air blower 5, the one of higher performance is incorporated in a main body 1 as a common reference air blower, and the energizing rate for a convective air blower 5 is set by a microcomputer to determine the performance of an air conditioner as necessary. It is thus possible to change even one type of convective air blower to the one of different performance easily by changing the energizing rate for more remarkable cost reduction in the case of many types.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner as an indoor unit of an air conditioner equipped with a convection blower for circulating indoor air.

0002

2. Description of the Related Art As is well known, there is a strong demand for expanding the range of models that users can select from air conditioners, and several models with different capabilities are often manufactured. Conventionally, for example, air conditioners of different types according to the capacities of the convection blowers are manufactured by incorporating convection blowers according to their capacities into the same casing.

[0003]According to the above-mentioned conventional method of handling multiple models, it is sufficient to prepare one common type of casing, and it is relatively easy to create models with different capacities by incorporating convection blowers with different capacities. Since the casing is common, costs can be reduced.

0004

[Problem to be solved by the invention] In the conventional air conditioners as described above, the more models with different capacities are used, the more the advantage of having a common casing disappears, and the cost increases. There are issues such as: In other words, as the number of models increases, a greater variety of convection blowers must be prepared, and corresponding types of small parts must be prepared, which increases costs.

[0005] The present invention has been made in order to solve the conventional problems, and an object thereof is to provide an air conditioner that can be used to configure models with different capacities using one type of convection blower as a standard.

[0006]

[Means for Solving the Problems] An air conditioner according to the present invention incorporates a convection blower with the highest capacity as a reference blower, and converts this reference blower into a convection blower with a specific capacity by setting the energization rate using a microcomputer. It is designed to operate as .

[0007]

[Function] In the air conditioner of the present invention, a convection blower with a lower capacity than the reference blower is incorporated by controlling the energization time of the reference convection blower, that is, simply by changing the setting of the energization rate. gives the same result.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an air conditioner as an application example of the present invention, FIG. 2 is a circuit diagram related to a microcomputer, and FIG. 3 is an explanatory diagram showing an example of setting the energization rate. The air conditioner shown in the figure has a forced air supply/exhaust type combustor with a gas heat source that functions for heating, and a heat exchanger that functions for cooling built into a box-shaped main body 1. The working fluid passage of the exchanger is connected to an outdoor unit (not shown) through piping, and is supplied with refrigerant. Main body 1
A hot air outlet 2 is provided in the front of the main body 1, and a cold air outlet 3 is provided in the center of the upper surface of the main body 1, and these are connected to an intake port 4 provided at the bottom of the main body 1 through an air passage inside. A convection blower 5 is installed in the main body 1 with its suction side facing the intake port 4 and its blowing side facing the hot air outlet 2 and the cold air outlet 3, respectively. The convection blower 5 has the highest capacity among the blowers used for this type of device and is incorporated as a reference blower. Indoor air sucked in from the intake port 4 by the convection blower 5 receives heat from combustion in the combustor during heating operation, and is blown out as warm air into the room from the warm air outlet 2, and during cooling operation, it is passed through the cooling heat exchanger. The cold air is cooled by the cooling air outlet 3 and blown into the room from the cold air outlet 3. The cold air outlet 3 has a rectangular opening at the center of the upper surface of the main body 1, and is equipped with a vane 6 that can be swung by a drive device as required. A control circuit including a microcomputer 7 is provided in the main body 1, and the capacity of the convection blower 5, which is a reference blower, is set by software of the microcomputer 7. That is, the energization rate for the convection blower 7 is higher than that of the microcomputer 7.
Accordingly, the settings are made as shown in FIG. 3, for example. Further, a detection signal from a room thermometer 8 for detecting room temperature is input to the microcomputer 7, the difference from the set temperature is calculated, and a control signal based on this is output to the controlled object.

[0009] In the air conditioner having the above configuration, models with different capabilities can be provided by changing the software of the microcomputer 7 without changing the constituent mechanical elements. That is, if the energization rate with respect to the reference blower is reduced so that the rated voltage of the power supply is not applied even at the highest notch, the model will have a lower capacity. Also, if you set the energization rate to the full capacity of the standard blower, you can switch to a model with higher capacity. Therefore, there are many different types of air conditioners that have the same apparent configuration but different capabilities, and as they become more diverse, it becomes more obvious that costs can be reduced by changing the software rather than by changing the constituent mechanical elements. becomes.

0010

[Effects of the Invention] As is clear from the above description of the embodiments, according to the present invention, a convection blower having a lower capacity than the standard blower is incorporated into the standard convection blower by simply changing the energization rate setting. The result is the same, and models with different capabilities can be easily obtained at low cost.

[0011]

[Brief explanation of drawings]

FIG. 1 is a perspective view of an air conditioner as an application example of the present invention.

FIG. 2 is a circuit diagram regarding the microcomputer of the present invention.

FIG. 3 is an explanatory diagram showing an example of setting capabilities in the present invention.

[Explanation of symbols]

1 Main body 4 Intake port 5 Convection blower 7. Microcomputer

Claims (1)

[Claims] [Claim 1] An air conditioner characterized in that a convection blower with the highest capacity is incorporated as a reference blower, and this reference blower is operated as a convection blower with a specific capacity by setting the energization rate using a microcomputer. Machine.