JPH07103542A - Temperature pulsating air-conditioner - Google Patents

Abstract

PURPOSE:To improve a body temperature regulating function by stepwisely altering a set temperature in a set period based on a set period, lowest and highest objective temperature from one objective temperature to the other objective temperature by set temperature altering means. CONSTITUTION:In the case of starting an operation, an objective lowest temperature and an objective highest temperature are first set by setting means 12. A heating mode operating period from the objective lowest temperature to the objective highest temperature and a cooling mode operating period of its reverse direction are set. Then, a time for 1 deg.C of a temperature signal is calculated by set temperature altering means 13. When an operation switch of an air conditioner 11 is closed in this state, a cooling mode operation or a heating mode operation is conducted by comparing an indoor temperature of a room to be air conditioned with the objective highest temperature, the objective lowest temperature. In this case, a temperature signal of 1 deg.C is output from an output unit 13a at each calculating time, a switch of operating means 14 is selectively operated, and the operation of the conditioner 11 is controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature pulsation type air conditioner in which the temperature of an air-conditioned room is changed in a predetermined cycle to make a temperature sense sensitive and enhance a body temperature adjusting function.

[0002]

2. Description of the Related Art Conventionally, a plurality of use side heat exchangers and one heat source side heat exchanger are used, and the use side heat exchanger is alternately switched between a cooling mode operation and a heating mode operation at a predetermined cycle,
A temperature pulsation type air conditioner has been proposed in which the temperature of an air-conditioned room is changed in the above cycle. (JP-A-4-
No. 110549) This air conditioner sets the cycle (for example, 20 minutes), and also sets the minimum temperature (for example, 20 ° C.) and the maximum temperature (for example, 30 ° C.) of the air-conditioned room within this cycle, By controlling the temperature of the air-conditioned room to alternate between the minimum temperature and the maximum temperature in each cycle, the temperature sensation of the person living in the air-conditioned room can be made sensitive and the body temperature control function can be enhanced. It was done.

[0003]

In the conventional air conditioner described above, the minimum temperature and the maximum temperature of the air-conditioned room within a predetermined cycle are set, and the minimum temperature and the maximum temperature are set for each cycle. Since the temperature is controlled so as to alternately change to and, the room temperature of the air-conditioned room changes into a trapezoidal shape as shown in FIG.

That is, for example, when the cycle time of the heating mode operation is finished, the mode is switched to the cooling mode operation. Since the room to be air-conditioned is cooled to the minimum set temperature by the switching to the cooling mode operation, the room temperature has a steep gradient. After the temperature has dropped and reached the minimum set temperature, it is maintained at this set temperature, and when the cycle time of this cooling mode operation ends, it is switched to heating mode operation and heated to the maximum set temperature and cooled. Similarly to the above, the room temperature rises steeply and is kept at this set temperature after reaching the maximum set temperature.

Therefore, even if the temperature sensation is made sensitive and the body temperature control function is enhanced, there is a problem in comfort. The present invention was made by paying attention to the fact that by gradually changing the room temperature, the temperature sensation can be made sensitive without impairing comfort, and the body temperature regulation function can be enhanced. To make the temperature sense sensitive,
It is an object of the present invention to provide an air conditioner capable of temperature pulsation operation capable of enhancing a body temperature adjusting function.

[0006]

In order to achieve the above object, the invention according to claim 1 is such that the utilization side heat exchanger is alternately switched between a cooling mode operation and a heating mode operation at a predetermined cycle,
A temperature pulsation type air conditioner including an air conditioning control device 11 for changing the temperature of an air-conditioned room in the cycle, and a setting means 12 for setting the cycle and target temperatures of a minimum temperature and a maximum temperature in the cycle. Since the set temperature changing means 13 for changing the set temperature in the cycle from one target temperature to the other target temperature stepwise based on the cycle and the target temperature set by the setting means 12 is provided. is there.

Further, in the invention according to claim 2, as the set temperature changing means 13, a temperature signal is generated based on a cycle time set by the setting means 12 and a temperature difference between a target maximum temperature and a target minimum temperature. An output unit 13a that calculates the time per 1 ° C. and outputs the changed temperature signal of 1 ° C. for each calculation time.
Is provided.

[0008]

According to the first aspect of the present invention, the set temperature changing means 13 is used to set the cycle within the cycle based on the cycle (for example, 10 minutes) set by the setting means 12 and the target temperature of the minimum temperature and the maximum temperature. Since the set temperature in 1 can be changed stepwise from one target temperature to the other target temperature, the indoor temperature of the air-conditioned room is gradually changed as shown in FIG. It is possible to reach the other target temperature.

Therefore, the temperature sensation can be made sensitive without giving the occupant an uncomfortable feeling due to the temperature change, and the body temperature regulation function can be enhanced.

Further, according to the second aspect of the invention, since the output portion 13a can change the set temperature by 1 ° C. for each time per 1 ° C. of the temperature signal, it is possible to change the optimum temperature while maintaining a comfortable environment. The above-mentioned action can be further improved.

[0011]

EXAMPLE In the example shown in FIG. 3, the air-conditioning target rooms A and B are two chambers, and the air-conditioning target rooms A and B are capable of a cooling mode operation by a cooling operation and a heating mode operation by a heating operation. 1 shows a heat recovery type temperature pulsation type air conditioner.

More specifically, the heat source side heat exchanger is constituted by two use side heat exchangers 1 and 2 corresponding to the air-conditioned rooms A and B, a heat source side heat exchanger 3 and a compressor 4. Bowl 3
And the compressor 4 in the outdoor unit C.
The high-pressure gas pipe 5 communicating with the discharge port of, the low-pressure gas pipe 6 communicating with the suction port, and the liquid pipe 8 communicating with the heat source side heat exchanger 3 via the solenoid valve 7 are connected, and these three pipes are connected. The utilization side heat exchangers 1 and 2 are connected to the refrigerant pipes 5, 6 and 8 via the switching mechanisms 9 and 10, and the solenoid valve 7 is closed.
The heat exchanger 1 on the use side of the room A to be air-conditioned by switching the switching mechanisms 9 and 10 and flowing the refrigerant as shown by solid arrows.
Can be used as a condenser for heating mode operation, and the user side heat exchanger 2 of the air-conditioned room B can be used as an evaporator for cooling mode operation. Further, the switching mechanisms 9 and 10 can be switched to operate as shown by dotted arrows. By operating the heat exchanger 2 on the use side of the room B as a condenser by flowing the refrigerant into the heating mode operation,
Cooling mode operation can be performed by using the use side heat exchanger 1 in the room A as an evaporator. The cooling mode operation or the heating mode operation can be performed by the heat recovery operation, and the cooling mode operation can be performed by switching the switching mechanisms 9 and 10. It is possible to switch between the heating mode operation and the heating mode operation.

The switching mechanisms 9 and 10 have three connection ports for connecting the high pressure gas pipe 5, the low pressure gas pipe 6 and the liquid pipe 8, and a gas pipe 50 having an electromagnetic valve 51 at these connection ports.
And a gas pipe 60 having a solenoid valve 61, a solenoid valve 81, and a liquid pipe 80 having a capillary tube 82 are connected, and the gas pipes 50 and 60 are merged to be connected to one gas pipe connection port. 80 is connected to one liquid pipe connection port.

Therefore, the solenoid valve 61 is closed and the solenoid valve 5
The heating mode operation using the heat exchanger on the use side as a condenser can be performed by opening 1, 81, and the heat exchanger on the use side is evaporated by closing the solenoid valve 51 and opening the solenoid valves 61, 81. Cooling mode operation can be performed as a unit.

Further, the electromagnetic valves 51, 51 of the gas pipes 50, 50 in the switching mechanisms 9, 10 are closed, and the liquid pipe 8 is closed.
By opening the solenoid valve 7 interposed in the cooling system, both the use side heat exchangers 1 and 2 can be used as evaporators for cooling mode operation (cooling operation), and the solenoid valves 61, 60 of the gas pipes 60, 60 can be used. By closing 61 and opening the solenoid valve 7, it is possible to perform the heating mode operation (heating operation) using both of the use side heat exchangers 1 and 2 as condensers.

Therefore, in the embodiment shown in FIG. 1, the use side heat exchangers 1 and 2 are alternately switched to the cooling mode operation and the heating mode operation at a predetermined cycle, and the temperature of the air conditioning target chambers A and B is changed. In the air-conditioning control device 11 for changing the cycle in the cycle, the cycle, the setting means 12 for setting the target temperature of the minimum temperature and the maximum temperature in the cycle, and the cycle and the target temperature set by the setting means 12. Based on the setting temperature changing means 13 for changing the set temperature within the cycle stepwise from one target temperature to the other target temperature, the set temperature is changed based on the temperature signal calculated by the changing means 13. I decided to do it.

The cycle set by the setting means 12 is within the range of 1 minute to 99 minutes, and the target minimum temperature and maximum temperature are within the range of 16 ° C. to 31 ° C., as shown in FIG. In the above example, the cycle is 10 minutes, the minimum temperature is 23 ° C., and the maximum temperature is 27 ° C. Further, the set temperature changing means 13 divides the cycle time by the temperature difference between the target maximum temperature and the target minimum temperature to calculate the time per 1 ° C. of the temperature signal to change the temperature signal of 1 ° C. The output unit 13a for outputting at each time is provided, and the cycle and the target minimum temperature and the maximum temperature are set by the setting unit 12, so that the cycle and the target temperature are set as shown in FIG. The set temperature is changed stepwise every 1 ° C. after a predetermined calculation time.

Therefore, the stepwise change of the set temperature controls the operation of the air conditioner via the air conditioning controller 11, and as a result, the heat exchangers 1 and 2 on the use side are arranged. The room temperature of the air-conditioned rooms A and B are
As shown by the chain line in FIG. 2, the target temperature changes from one target temperature to the other target temperature with a gentle slope, which makes the temperature sensation of the occupants sensitive without impairing comfort and enhances the body temperature regulation function. Of.

The output unit 13a may use a sequencer having a sequence circuit, or the set temperature changing means 13 may be incorporated in the air conditioning control device 11 having a built-in CPU. Further, when the set temperature is changed by the output from the output unit 13a using the sequencer, the operating means 14 is provided, and the operating means 14 is provided with a plurality of switches, and a group of ON operation of these switches. The operation means 1 is performed according to the adjustment.
4 uses a variable resistor, and the resistance value of this variable resistor is set to 0, for example.
It may be performed by changing the range of to 135Ω.
When the set temperature changing means 13 having the output portion 13a is incorporated in the air conditioning control device 11, the operating means 14
It can be omitted.

Next, the flow chart of the embodiment shown in FIG. 2 will be described with reference to FIG. When the operation is started, first, the target minimum temperature is set to 23 ° C. by the setting means 12 (step 1), and the target maximum temperature is set to 27, for example.
C. (step 2), and the cycle from the target minimum temperature to the maximum temperature, that is, the heating mode operation cycle is set to 1
In addition to setting 0 minute (step 3), the cycle from the target maximum temperature to the minimum temperature, that is, the cooling mode operation cycle is set to, for example, 10 minutes (step 4).

When the setting of the target temperature and the period is completed, the set temperature changing means 13 calculates the time (2 minutes 30 seconds) per 1 ° C. of the temperature signal. (Step 5) When the operation switch of the air conditioner is turned on in this state, if the indoor temperature of the air-conditioned rooms A and B is higher than the target maximum temperature and there is a cooling load, the above-described cooling operation is performed and the target maximum temperature is achieved. After reaching the temperature, the cooling mode operation command is output from the air conditioning controller 11 (step 6), and the cooling mode operation is executed.

After the start of the cooling mode operation, the temperature signal command of 1 ° C. to be changed is output from the output section 13a at every operation time (2 minutes and 30 seconds) (step 7). On the basis of the switch of the operating means 14 being selectively operated or the resistance value of the variable resistor being changed, a temperature signal of 1 ° C. to be changed is inputted to the air conditioning control device 11, and based on the changed set temperature. The operation of the air conditioner is controlled.

When the target minimum temperature (23 ° C.) is reached in the above cooling mode operation (step 8), a switching command is then output to the switching mechanisms 9 and 10 to switch to the heating mode operation described above ( Step 9), the heating mode operation is executed.

In this case as well, the temperature signal command of 1 ° C. to be changed is output from the output section 13a at every operation time (2 minutes and 30 seconds) (step 10), and is changed via the operating means 14 based on this output. A temperature signal of 1 ° C. is input to the air conditioning controller 11, and the operation of the air conditioner is controlled based on the changed set temperature.

When the target maximum temperature (27 ° C.) is reached in the above heating mode operation (step 11), the process returns to step 6 and the above control is repeated.

In the embodiment described above, the heat recovery operation of the air conditioner is possible, but in addition to this, a heat pump type air conditioner using a four-way switching valve may be used, or the use side heat exchanger. Although 1 and 2 are a pair, they may be two or more pairs, or one utilization side heat exchanger may be switched to an evaporator and a condenser by a four-way switching valve.

Further, the cycle and target temperature set by the setting means 12 can be arbitrarily selected, and the cycle between the cooling mode operation and the heating mode operation may be different.

[0028]

According to the first aspect of the present invention, the set temperature changing means 13 sets the cycle based on the cycle (for example, 10 minutes) set by the setting means 12 and the target temperatures of the minimum temperature and the maximum temperature. Since the set temperature in the cycle can be changed stepwise from one target temperature to the other target temperature, the indoor temperature of the air-conditioned room is gradually changed as shown in FIG. It is possible to reach the other target temperature from the temperature.

Therefore, the temperature sensation can be made sensitive without giving the occupant an uncomfortable feeling due to the temperature change, and the body temperature control function can be enhanced.

Further, according to the second aspect of the invention, since the output portion 13a can change the set temperature by 1 ° C. for each time per 1 ° C. of the temperature signal, it is possible to change the optimum temperature while maintaining a comfortable environment. The above-mentioned action can be further improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the device of the present invention.

FIG. 2 is an explanatory diagram showing an operation pattern and a change in room temperature according to the present invention.

FIG. 3 is a refrigerant piping system diagram showing an embodiment of the device of the present invention.

FIG. 4 is a flowchart of the operation pattern shown in FIG.

FIG. 5 is an explanatory diagram showing changes in indoor temperature in a conventional example.

[Explanation of symbols]

 1, 2 Use-side heat exchanger 9, 10 Switching mechanism 11 Air conditioning controller 12 Setting means 13 Setting temperature changing means 13a Output section

Claims (2)

[Claims] 1. A temperature pulsation type equipped with an air-conditioning control device (11) for alternately switching a use side heat exchanger between a cooling mode operation and a heating mode operation in a predetermined cycle and changing a temperature of an air-conditioned room in the cycle. In the air conditioner, based on the cycle, a setting means (12) for setting a target temperature of a minimum temperature and a maximum temperature in the cycle, and the cycle and the target temperature set by the setting means (12), A temperature pulsation type air conditioner comprising: a set temperature changing means (13) for changing the set temperature within a cycle from one target temperature to the other target temperature in a stepwise manner. 2. The set temperature changing means (13) determines the time per 1 ° C. of temperature signal based on the cycle time set by the setting means (12) and the temperature difference between the target maximum temperature and the target minimum temperature. The temperature pulsation type air conditioner according to claim 1, further comprising an output unit (13a) that calculates and outputs a temperature signal of 1 ° C to be changed for each calculation time.