JP2012042122A - Cooling system for heating element housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely carry out redundant cooling operation of an auxiliary cooling device in case of failure of a main cooling device in regard to interlock of operation of the main cooling device and the auxiliary cooling device in a cooling system in which a heat pump air conditioner using a refrigerant serves as the main cooling device, and an air heat exchange type cooling device serves as the auxiliary cooling device.SOLUTION: A temperature determination unit 18 for recognizing temperatures of an inside and an outside of a heating element housing device 101 is arranged on a control substrate 13 included in the air heat exchange type air conditioner 1. An operation instruction unit 20 compares an operation temperature condition and stop operation condition of the air heat exchange type air conditioner 1 determined by the temperature determination unit 18 with a drive command signal/stop command signal from an indoor unit 103 of the heat pump air conditioner as the main cooling device to drive/stop a first blower fan 7 and a second blower fan 8. Thereby, when erroneous drive command signal/stop command signal are transmitted due to the failure of the main cooling device, the air heat exchange type air conditioner 1 cools the inside of the heating element housing device 101.

Description

  The present invention provides a cooling system in which a heat pump type air conditioner using a refrigerant is used as a main cooling device and an air heat exchange type air conditioner is used as an auxiliary cooling device in order to cool a heating element storage device in which a heating element is stored. Regarding the interlocking operation of the main cooling device and the auxiliary cooling device, the operation of the auxiliary cooling device can be ensured when the main cooling device fails.

  Conventionally, as a cooling system for this type of heating element storage device, the auxiliary cooling device is not an air heat exchange type air conditioner, but the outside air introduction method by the electric damper and the intake fan of the outside air exhaust opening provided on the wall of the heating element storage device In this auxiliary cooling device, there is a method in which the main cooling device links the auxiliary cooling device in consideration of the room temperature in the heating element storage device and the outside air temperature outside the heating element storage device, such as the one shown in FIG. Was common. (See Patent Document 1 as a prior document).

  Hereinafter, the cooling system for the heating element storage device will be described with reference to FIGS. 12 and 13.

  As shown in FIG. 12, a communication device 102 that generates a heat load and an indoor unit 103 of a heat pump air conditioner as a main cooling device are installed in the heating element storage device 101. An outdoor unit 104 of a heat pump type air conditioner equipped with a compressor is installed. The outdoor unit 104 and the indoor unit 103 are connected by a refrigerant pipe 105, and a room temperature sensor 106 for detecting the indoor temperature in the heating element storage device 101 and a control device 107 for determining the temperature are provided in the indoor unit 103, An outside air temperature sensor 108 for detecting the outside air temperature outside the heating element storage device 101 provided in the outdoor unit 104 is connected to the control device 107 by a circuit line 109 provided along the refrigerant pipe 105. In addition, an intake fan 110 for introducing outside air provided on the outer wall of the heating element storage device 101 and an electric damper 111 provided in an outside air opening for exhausting the introduced outside air are connected to the control device 107 by a signal line 112. Thus, an outside air introduction type auxiliary cooling device is configured. A binary signal composed of a drive command signal / stop command signal for operating the intake fan 110 and the electric damper 111 is transmitted from the indoor unit 103 to the signal line 112. The control device 107 is preset with an operation threshold temperature T1 for operating the indoor unit 103 and the outdoor unit 104 and a stop threshold temperature T2 for stopping the indoor temperature. Further, when the indoor unit 103 and the outdoor unit 104 are stopped and the outside air temperature is lower than the indoor temperature, the stop command is issued even if the drive command signal is operated even when the indoor unit 103 and the outdoor unit 104 are operated. A signal is transmitted to the intake fan 110 and the electric damper 111.

In the above configuration, when the communication device 102 is operated, the room temperature in the heating element storage device 101 gradually increases due to the heat generation. The control device when the room temperature T _IN detected by the room temperature sensor 106 does not exceed the operation threshold temperature T1 and the temperature difference ΔT of the outside air temperature T _OUT detected by the outside air temperature sensor 108 is in a state of T _IN > T _OUT When the judgment is made at 107, a drive command signal is transmitted from the indoor unit 103 through the signal line 112, the electric damper 111 is opened, and the intake fan 110 is driven to introduce outside air lower than the room temperature, and the heating element storage device 101 is cooled. Thus, if the communication device 102 generates a large amount of heat and the cooling capacity due to the introduction of outside air is insufficient, the indoor temperature of the heating element storage device 101 rises, and the control device 107 determines that the room temperature T _IN has exceeded the operating threshold temperature T1. The machine 103 and the outdoor unit 104 start operation, the inside of the heating element storage device 101 is cooled, the stop command signal is transmitted through the signal line 112, the electric damper 111 is closed, the intake fan 110 is stopped, Cooling by the main cooling device lowers the room temperature of the heating element storage device 101. The control device 107 determines that the indoor temperature T _IN has become equal to or lower than the stop threshold temperature T2 due to cooling of the main cooling device or due to a decrease in the amount of heat generated by the communication device 102, and the indoor unit 103 and the outdoor unit 104 are stopped. At the same time, when the control device 107 determines that the temperature difference ΔT of the outside air temperature T _OUT is in a state of T _IN > T _OUT, a drive command signal is transmitted from the indoor unit 103 through the signal line 112 and the electric damper 111 Is opened and outside air is introduced by driving the intake fan 110 to cool the inside of the heating element storage device 101. When the outside air temperature T _OUT rises due to weather conditions, or when the communication device 102 generates a large amount of heat and the cooling capacity due to the introduction of outside air is insufficient, the room temperature of the heating element storage device 101 rises, and the room temperature T _IN becomes the operating threshold value. When the control device 107 determines that the temperature T1 has been exceeded, the indoor unit 103 and the outdoor unit 104 start operation, the inside of the heating element storage device 101 is cooled, and the stop command signal is transmitted through the signal line 112, and the electric damper 111 Is closed and the intake fan 110 is stopped to stop the cooling due to the introduction of outside air.

As described above, by operating the auxiliary cooling device in conjunction with the transmission of a simple binary signal of the drive command signal / stop command signal from the main cooling device, the main cooling device and the auxiliary cooling device shown in FIG. Cooling operation is performed by clearly dividing the cooling operating temperature range. Thereby, the room temperature T _IN of the heating element storage device 101 maintains a certain temperature range, and the power consumption is suppressed without overlapping the cooling operations of the main cooling device and the auxiliary cooling device. It was a cooling system.

JP 2000-121130 A

  In such a conventional cooling system for a heating element storage device, the auxiliary cooling device is operated with a drive command signal / stop command signal of the main cooling device, so that the temperature of the room temperature thermistor of the main cooling device is erroneously detected. Alternatively, if the correct drive command signal / stop command signal is not transmitted due to a failure of the main cooling device itself, the correct cooling operation of the auxiliary cooling device is not performed, and the internal temperature of the heating element storage device rapidly increases, and the communication device In the worst case, a secondary failure such as a failure of the heating element device may be caused. Even if an abnormality occurs in the main cooling device, it may be as long as possible. It is required that the auxiliary cooling device cools the heating element storage device redundantly before performing the above. In addition, heating devices such as communication devices are often precision devices, and external air containing a lot of dust or dust is directly introduced or moisture enters so as not to cause a short circuit accident or malfunction due to dust, dust, or moisture. There is also a need for an efficient cooling system. Also, when a failure of the main cooling device is reported, it is recognized by a service person visiting the heating element storage device or a remote operation operator that the auxiliary cooling device is correctly operating by estimating the failure of the main cooling device. It is also sought. Furthermore, it is also required to provide an energy-saving and low-cost cooling system in which power consumption is suppressed without overlapping the cooling operations of the main cooling device and the auxiliary cooling device.

  In such a cooling system for a heating element storage device, the auxiliary cooling device is a cooling device having excellent dustproof and moisture resistance, and the auxiliary cooling device performs redundant cooling of the heating element storage device when the main cooling device fails. An object of the present invention is to provide a low-cost cooling system for a heating element storage device that can operate and notify that the auxiliary cooling device is in a redundant cooling operation state even in a heating element storage device or a remote place. Is.

  In order to achieve this object, the present invention provides a heat pump type air conditioner using a refrigerant as a main cooling device that cools the inside of a heating element storage device in which a heating element is stored, and an air heat exchange type air conditioning as an auxiliary cooling device. A cooling system that connects the main cooling device and the auxiliary cooling device with a signal line, and operates the auxiliary cooling device according to a drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, The auxiliary cooling device is operated in consideration of the determination of the temperature determining means provided in the auxiliary cooling device, thereby achieving the intended purpose.

  The auxiliary cooling device further includes an indoor temperature detecting means for detecting the indoor temperature in the heating element storage device and an outside air temperature detection means for detecting the outside air temperature outside the heating element storage device, and the indoor temperature detection means and the outside air The temperature information from the temperature detection means is always input to the temperature determination means, and when the temperature determination means determines that the outside air temperature is lower than the room temperature, the operating temperature condition of the auxiliary cooling device, the outside temperature is higher than the room temperature. When the temperature determining means determines, the stop temperature condition of the auxiliary cooling device, and the temperature determining means determine, and the operation instruction means for instructing the operation / stop to the blowing means provided in the auxiliary cooling device has these operating temperature conditions or The intended purpose is achieved by sending out the stop temperature condition.

  In addition, when the first threshold temperature higher than the operation threshold temperature at which the main cooling device operates is set in the temperature determining means in advance, and the stop command signal is received from the main cooling device, the temperature determining means When the temperature determination means determines that the room temperature has exceeded the first threshold temperature in a state determined to be a condition, the intended purpose is achieved by operating the auxiliary cooling device. .

  In addition, when the temperature determination means determines that the operating temperature condition is satisfied, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device stops is stored as the initial indoor temperature in the temperature determination means. At the same time, the time measuring means provided in the auxiliary cooling device starts measuring time, and the time measuring means informs the temperature determining means that the preset measuring time has elapsed in the time measuring means, and the temperature determining means has passed the measuring time. The temperature difference between the indoor temperature and the initial indoor temperature is determined, and when the temperature determination means determines that the temperature difference is higher than the temperature difference threshold set in advance in the temperature determination means, the auxiliary cooling device is operated to The purpose of the period is achieved.

  In addition, when the temperature determination means determines that the operating temperature condition is satisfied, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device stops is stored as the initial indoor temperature in the temperature determination means. At the same time, the time measuring means provided in the auxiliary cooling device starts timing, and the temperature determining means tells the time measuring means that the preset room temperature difference preset in the temperature determining means exceeds the initial room temperature, The measurement time when the time measurement means exceeds the set measurement temperature difference is compared with the set time preset in the time measurement means, and when the measurement means determines that the measurement time is shorter than the set time, the auxiliary cooling device To achieve the intended purpose.

  In addition, a second threshold temperature lower than the stop threshold temperature at which the main cooling device stops is set in advance in the temperature determining means, and the drive command signal from the main cooling device is in a state where the temperature determining means determines that the operating temperature condition is satisfied. If the temperature determining means determines that the room temperature has fallen below the second threshold temperature when the temperature does not come, the intended purpose is achieved by operating the auxiliary cooling device.

  In addition, a third threshold temperature higher than the stop threshold temperature at which the main cooling device stops is set in advance in the temperature determining means, and a drive command signal is output from the main cooling device in a state where the temperature determining means determines that the stop temperature condition is satisfied. In this case, when the temperature determining means having an outdoor temperature exceeding the third threshold temperature determines, the auxiliary cooling device is brought into a stopped state to achieve the intended purpose.

  Further, when the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the visual notification means provided in the auxiliary cooling device is used for notification. To achieve the intended purpose.

  Further, when the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the operation state is reported to a remote place provided for the auxiliary cooling device. The intended purpose is achieved by issuing a deliberate signal of on, off, and on for a certain period of time for the switch means as the alert transmission means.

  According to the present invention, a heat pump air conditioner using a refrigerant as a main cooling device for cooling a heating element storage box in which a heating element is stored, an air heat exchange type cooling device as an auxiliary cooling device, and the main cooling device The auxiliary cooling device is connected to the auxiliary cooling device via a signal line, and the auxiliary cooling device is operated by a drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device. Recognizing the temperature inside and outside the heating element storage box regardless of the drive command signal / stop command signal from the main cooling device by operating the auxiliary cooling device in consideration of the judgment of the temperature judging means Therefore, even if the main cooling device sends an incorrect drive command signal / stop command signal due to a failure or the like, the heating element storage device can be cooled at the judgment of the auxiliary cooling device itself. Effect it is possible to obtain the called that.

The figure which shows the structure of the heat generating body accommodating apparatus cooling system of Embodiment 1 of this invention. The block diagram which shows the structure of the control apparatus of Embodiment 1 The graph showing an example of the indoor temperature change in the time passage of Embodiment 1 Another graph showing an example of a change in indoor temperature over time in the first embodiment The block diagram which shows the structure of the control apparatus of Embodiment 2 of this invention. The graph showing an example of the indoor temperature change in the time passage of Embodiment 2 The block diagram which shows the structure of the control apparatus of Embodiment 3 of this invention. The graph showing an example of the indoor temperature change in the time passage of Embodiment 3 The block diagram which shows the structure of the control apparatus of Embodiment 4 of this invention. The figure which shows the structure of the heat generating body accommodating apparatus cooling system of Embodiment 5 of this invention. The block diagram which shows the structure of the control apparatus of Embodiment 5 The figure which shows the structure of the conventional heating element storage apparatus cooling system. Graph showing an example of indoor temperature change over time of the conventional example

  The cooling system for a heating element storage device according to claim 1 of the present invention includes a heat pump type air conditioner using a refrigerant as a main cooling device for cooling the inside of the heating element storage device in which the heating element is stored, and an auxiliary cooling device. An air heat exchange type air conditioner, the main cooling device and the auxiliary cooling device are connected by a signal line, and the auxiliary cooling device is operated by a drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device. In this cooling system, the auxiliary cooling device is operated in consideration of the determination of the temperature determining means provided in the auxiliary cooling device. As a result, the temperature inside and outside the heating element storage device is recognized regardless of the drive command signal / stop command signal from the main cooling device, so that an incorrect drive command signal / stop command signal due to a failure of the main cooling device or the like. Is transmitted, it is possible to cool the heating element storage device according to the judgment of the auxiliary cooling device itself.

  The auxiliary cooling device further includes an indoor temperature detecting means for detecting an indoor temperature in the heating element storage device and an outside air temperature detection means for detecting an outside air temperature outside the heating element storage device, and the indoor temperature detection means and the outside air temperature are provided. The temperature information from the detection means is always input to the temperature determination means, and when the temperature determination means determines that the outside air temperature is lower than the room temperature, the operation temperature condition of the auxiliary cooling device, the outside temperature is higher than the room temperature, When the temperature judging means judges, the stop temperature condition of the auxiliary cooling device, and this temperature judging means judge, and the operation instruction means for instructing the operation / stop to the blowing means provided in the auxiliary cooling device, these operating temperature conditions or stop The temperature condition may be sent. Thus, the auxiliary cooling device itself determines whether or not the auxiliary cooling device itself satisfies the cooling operation condition that the outside air temperature of the heating element storage device is lower than the indoor temperature of the heating element storage device. There is an effect that the validity of the drive command signal / stop command signal to the auxiliary cooling device transmitted from the cooling device can be judged by the auxiliary cooling device itself.

  In addition, when the first threshold temperature higher than the operation threshold temperature at which the main cooling device operates is set in the temperature determining means in advance, and the stop command signal is received from the main cooling device, the temperature determining means The auxiliary cooling device may be configured to operate when the temperature determination unit determines that the room temperature has exceeded the first threshold temperature in the state determined as the condition. As a result, it will be recognized that the room temperature of the heating element storage device is an increase in the room temperature that exceeds the assumed room temperature that would be cooled by the main cooling device, so it is estimated that the main cooling device has failed, The cooling operation is performed according to the judgment of the auxiliary cooling device itself, and an effect is obtained that it is possible to suppress an increase in the room temperature of the heating element storage device.

  In addition, when the temperature determination means determines that the operating temperature condition is satisfied, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device stops is stored as the initial indoor temperature in the temperature determination means. At the same time, the time measuring means provided in the auxiliary cooling device starts measuring time, and the time measuring means informs the temperature determining means that the preset measuring time has elapsed in the time measuring means, and the temperature determining means has passed the measuring time. The temperature difference between the indoor temperature and the initial indoor temperature is determined, and the auxiliary cooling device is operated when the temperature determination means determines that the temperature difference is higher than a preset temperature difference threshold in the temperature determination means. Also good. As a result, an unexpected rise in room temperature has occurred within a preset time, that is, the room temperature of the heating element storage device is suddenly increased above the assumed room temperature that will be cooled by the main cooling device. Therefore, it is estimated that the main cooling device has failed and the cooling capacity is insufficient, and the cooling operation is performed at the judgment of the auxiliary cooling device itself and the room temperature of the heating element storage device rises. There is an effect that it can be suppressed.

  In addition, when the temperature determination means determines that the operating temperature condition is satisfied, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device stops is stored as the initial indoor temperature in the temperature determination means. At the same time, the time measuring means provided in the auxiliary cooling device starts timing, and the temperature determining means tells the time measuring means that the preset room temperature difference preset in the temperature determining means exceeds the initial room temperature, The measurement time when the time measurement means exceeds the set measurement temperature difference is compared with the set time preset in the time measurement means, and when the measurement means determines that the measurement time is shorter than the set time, the auxiliary cooling device It may be configured to operate. As a result, the room temperature rises faster than the preset time, that is, the room temperature rises faster than the assumed time, i.e., the room temperature suddenly rises above the assumed room temperature, which would be cooled by the main cooling device. Therefore, it is estimated that the main cooling device has failed and the cooling capacity is insufficient, and the auxiliary cooling device itself performs a cooling operation to raise the room temperature of the heating element storage device. There is an effect that this can be suppressed.

  In addition, a second threshold temperature lower than the stop threshold temperature at which the main cooling device stops is set in advance in the temperature determining means, and the drive command signal from the main cooling device is in a state where the temperature determining means determines that the operating temperature condition is satisfied. If the temperature determining means determines that the room temperature has fallen below the second threshold temperature, the auxiliary cooling device may be operated. As a result, it is recognized that the drive command signal is not transmitted by the main cooling device in spite of the operating temperature condition of the auxiliary cooling device. Even if the signal is transmitted, the cooling operation is performed according to the judgment of the auxiliary cooling device itself, and an appropriate cooling operation in the heating element storage device can be performed.

  In addition, a third threshold temperature higher than the stop threshold temperature at which the main cooling device stops is set in advance in the temperature determining means, and a drive command signal is output from the main cooling device in a state where the temperature determining means determines that the stop temperature condition is satisfied. In the case where the temperature has come, the temperature determination means having an outdoor temperature exceeding the third threshold temperature may be configured to stop the auxiliary cooling device. As a result, it is recognized that the drive command signal is transmitted by the main cooling device in spite of the stop temperature condition of the auxiliary cooling device. Even if the signal is transmitted, the operation is stopped by the judgment of the auxiliary cooling device itself, and an effect of suppressing an inadvertent increase in the room temperature in the heating element storage device can be achieved.

  Further, when the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the visual notification means provided in the auxiliary cooling device is used for notification. It may be configured as follows. As a result, since the visual notification means is provided, it is recognized from the outside that the operation of the auxiliary cooling device is different from the command in response to the drive command signal / stop command signal from the main cooling device. There is an effect that can be done.

  Further, when the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the operation state is reported to a remote place provided for the auxiliary cooling device. The switch means as the alert transmission means may be configured to issue an intentional signal of ON, OFF, ON during a certain period. As a result, since there is a means for reporting to a remote location, it is confirmed that the operation of the auxiliary cooling device is different from the command in response to the drive command signal / stop command signal from the main cooling device. It has the effect of being able to know with

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, a communication device 102 that generates a thermal load and an indoor unit 103 of a heat pump air conditioner as a main cooling device are installed in the heating element storage device 101. Outside the apparatus 101, an outdoor unit 104 of a heat pump type air conditioner provided with a compressor is installed. The outdoor unit 104 and the indoor unit 103 are connected by a refrigerant pipe 105, and a room temperature sensor 106 for detecting the indoor temperature in the heating element storage device 101 and a control device 107 for determining the temperature are provided in the indoor unit 103. An outside air temperature sensor 108 for detecting the outside air temperature outside the heating element storage device 101 provided in the outdoor unit 104 is connected to the control device 107 through a circuit line 109 provided along the refrigerant pipe 105. An air heat exchange type air conditioner 1 as an auxiliary cooling device is provided on the outer wall of the heating element storage device 101. The air heat exchange type air conditioner 1 includes a first intake port 2 for the outside air (first environment) and a first air inlet. A main body case 6 having a first discharge port 3 and a second intake port 4 and a second discharge port 5 for the inside of the heating element storage device 101 (second environment), and outside air (first environment) provided in the main body case 6 ) First blower fan 7 and second blower fan 8 for heating element storage device 101 (second environment), outside air (first environment) air and heating element storage device in main body case 6. 101, a heat exchanger 9 that performs heat exchange without directly mixing air in the second environment (second environment), and an auxiliary cooling control device 10 that controls the first blower fan 7 and the second blower fan 8. In the second air inlet 4 to measure the room temperature in the heating element storage device 101 The auxiliary cooling room temperature sensor 11 and the auxiliary cooling outside air temperature sensor 12 are provided in the first intake port 2 to measure the outside air temperature outside the auxiliary cooling room temperature sensor 11 and the heating element storage device 101. Are connected to the auxiliary cooling control device 10, and the control device 107 and the auxiliary cooling control device 10 are connected by a signal line 112 to transmit a binary signal composed of a drive command signal / stop command signal. The control device 107 is preset with an operation threshold temperature T1 of an indoor temperature for operating the indoor unit 103 and the outdoor unit 104 and a stop threshold temperature T2 of an indoor temperature for stopping the indoor unit 103 and the outdoor unit 104, When the control unit 107 determines that the indoor unit 103 and the outdoor unit 104 are stopped and the outside air temperature is lower than the room temperature, the drive command signal is sent to the indoor unit 103 and the outdoor unit 104. In this case, the stop signal is transmitted to the auxiliary cooling control device 10. Further, the auxiliary cooling control device 10 includes a first threshold temperature T3 slightly higher than the operation threshold temperature T1, a second threshold temperature T4 slightly lower than the stop threshold temperature T2, and a third slightly higher than the stop threshold temperature T2. The threshold temperature T5 is preset.

  In addition, as shown in FIG. 2, the auxiliary cooling control device 10 includes a first control circuit that drives and controls the control board 13, the first blower fan 7, and the second blower fan 8 in the auxiliary cooling control device 10. Connected to the inverter 14 and the second inverter 15, the auxiliary cooling room temperature sensor 11 and the auxiliary cooling outside air temperature sensor 12 are connected to an indoor temperature detecting means 16 and an outside air temperature detecting means 17 provided on the control board 13. The control board 13 includes a temperature determining unit 18 to which an indoor temperature detecting unit 16 and an outside air temperature detecting unit 17 are connected. The receiving unit 19 that receives a drive command signal / stop command signal from the indoor unit 103 and the temperature An operation instruction unit 20 is connected to which a signal from the determination unit 18 is input and an operation instruction is given to the first inverter 14 and the second inverter 15.

According to such a configuration, when the communication device 102 is operated, the room temperature in the heating element storage device 101 gradually rises due to heat generation. The temperature difference ΔT of the outside air temperature T _OUT detected by the outside air temperature sensor 108 is in a range where the room temperature T _IN detected by the room temperature sensor 106 does not exceed the operation threshold temperature T1 (for example, 28 ° C.), and T _IN > T _OUT When the control device 107 determines that the state is in the state, a drive command signal is transmitted from the indoor unit 103 through the signal line 112, the drive device 19 receives this drive command signal, and transmits this drive command signal to the driving instruction means 20. . The On the other hand, reads constantly room temperature T _IN of the heat generating member housing apparatus 101 at room temperature detecting means 16 through the auxiliary cooling room temperature sensors 11 are transmitted to the temperature determining means 18. Similarly, the outside air temperature T _OUT outside the heating element storage device 101 is always read by the outside air temperature detecting means 17 through the auxiliary cooling outside air temperature sensor 12 and transmitted to the temperature judging means 18. In the temperature determination means 18, T _IN > T _OUT and T _IN <T1 (for example, the condition is satisfied when T _IN is 20 ° C. and T _OUT is 15 ° C.), and the air heat exchange type air conditioner 1 is confirmed, and the operation temperature condition information is transmitted to the operation instruction means 20. The operation instruction means 20 receives the drive command signal from the indoor unit 103 and the operation temperature condition information from the temperature determination means 18, and gives an operation instruction to the first inverter 14 and the second inverter 15, and the first air blower The fan 7 and the second blower fan 8 are driven to cool the inside of the heating element storage device 101 with the outside air side and the indoor side shielded by the heat transfer action of the heat exchanger 9. When only the air heat exchange type air conditioner 1 is in operation, if the outside temperature T _OUT rises due to weather conditions or the amount of heat generated by the communication device 102 increases, the room temperature T _IN inevitably rises. When the threshold temperature T1 is exceeded, the control device 107 determines that the main cooling device should be operated and operates the indoor unit 103 and the outdoor unit 104 to cool the inside of the heating element storage device 101 and at the same time A stop command signal is transmitted to the heat exchange type air conditioner 1. The receiving device 19 receives this stop command signal and transmits this stop command signal to the operation instruction means 20. On the other hand, from the room temperature T _IN and the outside air temperature T _OUT that are constantly transmitted to the temperature determination means 18, the temperature determination means 18 satisfies T _IN > T1 (for example, the condition is satisfied when T _IN is 29 ° C.). It is confirmed that the stop temperature condition of the air heat exchange type air conditioner 1 is satisfied, and the stop temperature condition information is transmitted to the operation instruction means 20. In response to the stop command signal from the indoor unit 103 and the stop temperature condition information from the temperature determination means 18, the operation instruction means 20 issues a stop instruction to the first inverter 14 and the second inverter 15, and the first blower The fan 7 and the second blower fan 8 are stopped. The control device 107 determines that the indoor temperature T _IN has become equal to or lower than the stop threshold temperature T2 (for example, 26 ° C.) due to cooling of the main cooling device or with a decrease in the heat generation amount of the communication device 102, and the indoor unit 103 and the outdoor unit When the control device 107 determines that the temperature difference ΔT of the outside air temperature T _OUT is in a state of T _IN > T _OUT, a drive command signal is sent from the indoor unit 103 through the signal line 112. The drive command signal is transmitted to the heat exchange type air conditioner 1 and received by the receiver 19, and this drive command signal is transmitted to the operation instruction means 20. On the other hand, from the room temperature T _IN and the outside air temperature T _OUT that are always transmitted to the temperature determination means 18, the temperature determination means 18 satisfies T _IN > T _OUT and T _IN <T1 (for example, T _IN is The condition is established at 20 ° C. and T _OUT is 15 ° C.), and confirms that the operating temperature condition of the air heat exchange type air conditioner 1 is satisfied, and transmits the operating temperature condition information to the operation instruction means 20. The operation instruction means 20 receives the drive command signal from the indoor unit 103 and the operation temperature condition information from the temperature determination means 18, and gives an operation instruction to the first inverter 14 and the second inverter 15, and the first air blower The fan 7 and the second blower fan 8 are driven to cool the inside of the heating element storage device 101 with the outside air side and the indoor side shielded by the heat transfer action of the heat exchanger 9.

It adapted to hold the room temperature T _IN certain temperature range of the heating element storing device 101 while repeating the above operation.

Here, in a state where the stop command signal from the indoor unit 103 continues to be sent to the air heat exchange type air conditioner 1, the room temperature T _IN and the outside temperature T detected by the room temperature detecting means 16 and the outside air temperature detecting means 17. _When the relationship between _OUT and a first threshold temperature T3 (for example, 30 ° C.) set in advance is T _IN > T _OUT and T _IN > T3, it is assumed that the main cooling device is in a failure stop state. The operation temperature condition of the heat exchange type air conditioner 1 and the temperature determination means 18 determine, and the operation temperature condition information is transmitted to the operation instruction means 20. Since the operation instruction means 20 has obtained the operation temperature condition information for the stop command signal, the operation instruction means 20 issues an operation instruction to the first inverter 14 and the second inverter 15, and the stop temperature condition that satisfies T _IN <T _OUT is satisfied. continuing to operate the first air blowing fan 7 preliminary second blower fan 8 until ready, as shown in FIG 3, rather than the broken line showing the change in room temperature T _iN by natural cooling effect due to a failure of the main cooling device, one point When the room temperature T _IN suddenly rises as shown by the chain line and the room temperature T _IN shown by the solid line rises slowly, and the communication device 102 generates a small amount of heat, the operation to keep the room temperature T _IN balanced at best. Do.

Further, in a state where the stop command signal from the indoor unit 103 is transmitted to the air heat exchange type air conditioner 1, the room temperature T _IN and the outside temperature T _OUT that are always transmitted to the temperature determination means 18 are set in advance. When the relationship of the threshold temperature T4 of 2 (for example, 25 ° C.) is T _IN > T _OUT and T _IN <T4, the operating temperature condition of the air heat exchange type air conditioner 1 is confirmed, The operating temperature condition information is transmitted to the operation instruction means 20. The operation instruction means 20 receives the stop command signal from the indoor unit 103 and the operation temperature condition information from the temperature determination means 18 and issues an operation instruction to the first inverter 14 and the second inverter 15 to generate the first air flow. The fan 7 and the second blower fan 8 are driven to cool the inside of the heating element storage device 101. That is, as shown in FIG. 4, when the air heat exchange type air conditioner 1 cannot be driven because the drive command signal from the indoor unit 103 does not come, the room temperature rises as shown by a one-dot chain line, The outdoor unit 104 can be prevented from reaching the operating temperature, and can be suppressed by the temperature change of the room temperature T _IN as shown by the solid line by the operation of the air heat exchange type air conditioner 1 as shown by the solid line.

Although not particularly shown, the drive command signal from the indoor unit 103 is sent to the air heat exchange type air conditioner 1 and the outside temperature T _OUT always transmitted to the temperature determination means 18 and a preset third threshold value. When the relationship of the temperature T5 (for example, 27 ° C.) is T _OUT > T5, the temperature of the room temperature T _IN does not _fall below the outside temperature T _OUT even if the air heat exchange type air conditioner 1 is operated. The stop temperature condition of the exchangeable air conditioner 1 and the temperature determination means 18 determine, and the stop temperature condition information is transmitted to the operation instruction means 20. In the operation instruction means 20, since the stop temperature condition information is obtained with respect to the drive command signal, the first blower fan 7 and the second blower 7 are kept in the first inverter 14 and the second inverter 15 as the stop instruction. The blower fan 8 is kept stopped until the operating temperature condition of the air heat exchange type air conditioner 1 is satisfied.

  As described above, the air heat exchange type air conditioner 1 as the auxiliary cooling device is operated in conjunction with the transmission of a simple binary signal of the drive command signal / stop command signal from the main cooling device, and this air heat exchange type air conditioner The cooling operation temperature range of the main cooling device and the auxiliary cooling device is clarified while exhibiting excellent effects of dustproof and moistureproof performance by shielding the inside and outside air of the heating element storage device 101 by the heat exchanger 9 provided in 1 By dividing, it is possible to realize an energy-saving and low-cost cooling system for a heating element storage device with reduced power consumption without overlapping cooling operations. Further, by providing the temperature judgment means 18 for recognizing the temperature inside and outside the heating element storage device 101 in the air heat exchange type air conditioner 1, the drive command signal / stop command signal from the indoor unit 103 as the main cooling device is provided. Regardless of this, even if the main cooling device sends an incorrect drive command signal / stop command signal in the event of a failure or the like, the air heat exchange type air conditioner 1 determines the assistance to maintain the cooling performance of the heating element storage device 101. The air heat exchange type air conditioner 1 as a cooling device can perform redundant cooling operation in the heating element storage device 101.

  Although the auxiliary cooling device is described as a pneumatic heat exchange type air conditioner, there is no difference in effect even if an outside air introduction type cooling device using a filter having excellent dustproof performance and moistureproof performance is used. The same applies to the embodiment.

  In addition, the first threshold temperature T3, the second threshold temperature T4, and the third threshold temperature T5 are slightly different from the operation threshold temperature T1 and the stop threshold temperature T2. The temperature difference due to the difference and measurement error is taken into account, and the temperature difference cannot be generally determined by the size of the heating element storage device or the installation location of the main cooling device or auxiliary cooling device. In this embodiment, it is described as a reference example, and the same applies to the following embodiments.

(Embodiment 2)
In the present embodiment, as shown in FIGS. 5 and 6, in the first embodiment, the timing means 21 is provided on the control board 13, and a signal transmitted from the receiving device 19 to the operation instruction means 20 is transmitted to the timing means 21. The output signal of the time measuring means 21 is connected to the temperature determining means 18 so as to be input to the temperature determining means 18. Further, instead of the first threshold temperature T3, the temperature difference threshold value ΔTO is set in advance in the temperature determination means 18, and the measurement time t _s is set in the time measurement means 21 in advance. In addition, about the same component as Embodiment 1, the detailed description is abbreviate | omitted using the same code | symbol.

As a result, when the stop command signal from the drive command signal from the indoor unit 103 is changed and sent to the air heat exchange type air conditioner 1, the time measuring means 21 starts measuring time, while the temperature determining means 18 The room temperature TA at the time when the room temperature T _IN which is constantly transmitted by the temperature detecting means 16 is changed from the drive command signal to the stop command signal is stored. The time measuring means 21 informs the temperature judging means 18 that a preset measurement time t _s (for example, 1 minute) has elapsed since the start of time measurement, and the difference between the room temperature TB at this time and the previously stored room temperature TA. Is immediately calculated (ΔT = TB−TA), compared with a preset temperature difference threshold value ΔTO (for example, 2 ° C.), and when ΔT> ΔTO, the air is assumed to be in a failure stop state of the main cooling device The operation temperature condition of the heat exchange type air conditioner 1 and the temperature determination means 18 determine, and the operation temperature condition information is transmitted to the operation instruction means 20. Since the operation instruction means 20 has obtained the operation temperature condition information for the stop command signal, the operation instruction means 20 issues an operation instruction to the first inverter 14 and the second inverter 15, and the stop temperature condition that satisfies T _IN <T _OUT is satisfied. continuing to operate the first air blowing fan 7 preliminary second blower fan 8 until ready, as shown in FIG. 6, rather than the broken line showing the change in room temperature T _iN by natural cooling effect due to a failure of the main cooling device, one point When the room temperature T _IN suddenly rises as shown by the chain line and the room temperature T _IN shown by the solid line rises slowly, and the communication device 102 generates a small amount of heat, the operation to keep the room temperature T _IN balanced at best. Do.

  As described above, the air heat exchange type air conditioner 1 as the auxiliary cooling device is operated in conjunction with the transmission of a simple binary signal of the drive command signal / stop command signal from the main cooling device, and this air heat exchange type air conditioner The cooling operation temperature range of the main cooling device and the auxiliary cooling device is clarified while exhibiting excellent effects of dustproof and moistureproof performance by shielding the inside and outside air of the heating element storage device 101 by the heat exchanger 9 provided in 1 By dividing, it is possible to realize an energy-saving and low-cost cooling system for a heating element storage device with reduced power consumption without overlapping cooling operations. In addition, by providing the air heat exchange type air conditioner 1 with the temperature determining means 18 for recognizing the temperature inside and outside the heating element storage device 101 and the time measuring means 21 for measuring the time from when the drive command signal is changed to the stop command signal, Regardless of the drive command signal / stop command signal from the indoor unit 103 as the main cooling device, the heating element storage device 101 is cooled even if the main cooling device transmits an incorrect drive command signal / stop command signal when it fails. In order to maintain the performance, the air heat exchange type air conditioner 1 as an auxiliary cooling device can perform a redundant cooling operation in the heating element storage device 101 based on the judgment of the air heat exchange type air conditioner 1.

(Embodiment 3)
Now, in the present embodiment, as shown in FIGS. 7 and 8, in the first embodiment, the timing means 21 is provided on the control board 13, and a signal to be transmitted from the receiving device 19 to the operation instruction means 20 is transmitted to the timing means 21. The output of the temperature determination means 18 is connected to the operation instruction means 20 and the time measurement means 21, and the output of the time measurement means 21 is connected to the operation instruction means 20. . Further, instead of the first threshold temperature T3, the set measurement temperature difference ΔTO is set in the temperature determining means 18 in advance, and the set time Δt ₀ is set in the time measuring means 21 in advance. In addition, about the same component as Embodiment 1, the detailed description is abbreviate | omitted using the same code | symbol.

As a result, when the stop command signal from the drive command signal from the indoor unit 103 is changed and sent to the air heat exchange type air conditioner 1, the time measuring means 21 starts measuring time, while the temperature determining means 18 The room temperature TA at the time when the room temperature T _IN which is constantly transmitted by the temperature detecting means 16 is changed from the drive command signal to the stop command signal is stored. Then, the time measuring means 21 is informed that the room temperature T _IN (T _IN = TA + ΔTO) is obtained by adding a preset measured temperature difference ΔTO (for example, 2 ° C.) previously set in the temperature determining means 18 to the room temperature TA. The time t at this time is compared with a set time Δt ₀ (for example, 1 minute) set in the time measuring means 21 in advance. If t <Δt ₀ , it is assumed that the main cooling device is in a stopped state. The operating temperature condition of the air heat exchange type air conditioner 1 and the temperature determining means 18 determine, and the operating temperature condition information is transmitted to the operating instruction means 20. Since the operation instruction means 20 has obtained the operation temperature condition information for the stop command signal, the operation instruction means 20 issues an operation instruction to the first inverter 14 and the second inverter 15, and the stop temperature condition that satisfies T _IN <T _OUT is satisfied. continuing to operate the first air blowing fan 7 preliminary second blower fan 8 until ready, as shown in FIG. 8, instead of the broken line showing the change in room temperature T _iN by natural cooling effect due to a failure of the main cooling device, one point When the room temperature T _IN suddenly rises as shown by the chain line and the room temperature T _IN shown by the solid line rises slowly, and the communication device 102 generates a small amount of heat, the operation to keep the room temperature T _IN balanced at best. Do.

  As described above, the air heat exchange type air conditioner 1 as the auxiliary cooling device is operated in conjunction with the transmission of a simple binary signal of the drive command signal / stop command signal from the main cooling device, and this air heat exchange type air conditioner The cooling operation temperature range of the main cooling device and the auxiliary cooling device is clarified while exhibiting excellent effects of dustproof and moistureproof performance by shielding the inside and outside air of the heating element storage device 101 by the heat exchanger 9 provided in 1 By dividing, it is possible to realize an energy-saving and low-cost cooling system for a heating element storage device with reduced power consumption without overlapping cooling operations. In addition, by providing the air heat exchange type air conditioner 1 with the temperature determining means 18 for recognizing the temperature inside and outside the heating element storage device 101 and the time measuring means 21 for measuring the time from when the drive command signal is changed to the stop command signal, Regardless of the drive command signal / stop command signal from the indoor unit 103 as the main cooling device, the heating element storage device 101 is cooled even if the main cooling device transmits an incorrect drive command signal / stop command signal when it fails. In order to maintain the performance, the air heat exchange type air conditioner 1 as an auxiliary cooling device can perform a redundant cooling operation in the heating element storage device 101 based on the judgment of the air heat exchange type air conditioner 1.

(Embodiment 4)
Now, in the present embodiment, as shown in FIG. 9, in the first embodiment, the control board 13 is provided with the visual notification means 22, and the LED 23 is used to emit light. In addition, about the same component as Embodiment 1, the detailed description is abbreviate | omitted using the same code | symbol.

  As a result, when the air heat exchange type air conditioner 1 performs the same operation as these command signals in response to the drive command signal or the stop command signal sent from the indoor unit 103 to the air heat exchange type air conditioner 1. The LED 23 is turned off, and the air heat exchange type air conditioner 1 operates in the same manner as these command signals in response to a drive command signal or a stop command signal sent from the indoor unit 103 to the air heat exchange type air conditioner 1. If it is, turn it on.

  Thus, since the LED 23 which is the visual notification means 22 is provided on the control board 13 in the air heat exchange type air conditioner 1, in response to the drive command signal / stop command signal from the indoor unit 103 which is the main cooling device, It can be recognized from the outside that the operation of the air heat exchange type air conditioner 1 which is an auxiliary cooling device performs an operation different from these commands.

  Here, in the case where the air heat exchange type air conditioner 1 performs the same operation as these command signals in response to a drive command signal or a stop command signal sent from the indoor unit 103 to the air heat exchange type air conditioner 1. However, if there is a clear difference in the light emitting method such as lighting and extinguishing or lighting and blinking, there is no difference in operation and effect.

(Embodiment 5)
In the present embodiment, as shown in FIGS. 10 and 11, in the first embodiment, the notification transmission means 25 is connected to the control communication board 13 on the notification communication line 24 connected to the air heat exchange type air conditioner 1. And a non-voltage relay contact 26 is used as a switch means. In addition, about the same component as Embodiment 1, the detailed description is abbreviate | omitted using the same code | symbol.

  As a result, when the air heat exchange type air conditioner 1 performs the same operation as these command signals in response to the drive command signal or the stop command signal sent from the indoor unit 103 to the air heat exchange type air conditioner 1. The no-voltage relay contact 26 is kept open, and the air heat exchange type air conditioner 1 responds to the drive command signal or stop command signal sent from the indoor unit 103 to the air heat exchange type air conditioner 1. When the same operation is performed, the no-voltage relay contact 26 is kept closed, and further, for example, every 10 seconds, the no-voltage relay contact 26 is opened and closed. Repeatedly indicates that the opening and closing of the contact is repeated intentionally. Thereby, it can distinguish with the open state of the no-voltage relay contact 26 shown as the abnormal state of the general air heat exchange type | formula air conditioner 1. FIG.

  As described above, the control board 13 in the air heat exchange type air conditioner 1 is provided with the non-voltage relay contact 26 of the switch means which is the report transmission means 25, and the alarm communication line 24 is connected to the air heat exchange type air conditioner 1. Therefore, in response to the drive command signal / stop command signal from the indoor unit 103 which is the main cooling device, it is remotely confirmed that the operation of the air heat exchange type air conditioner 1 which is the auxiliary cooling device performs an operation different from these commands. You can know on the ground.

  A cooling system for a heating element storage device according to the present invention includes a heat pump type air conditioner using a refrigerant as a main cooling device for cooling a heating element storage box in which a heating element is stored, and an air heat exchange type cooling as an auxiliary cooling device. In the cooling system for operating the auxiliary cooling device by a drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, connecting the apparatus, the main cooling device and the auxiliary cooling device with a signal line, The auxiliary cooling device is independently operated by the temperature determining means provided in the auxiliary cooling device. As a result, the temperature inside and outside the heating element storage box is recognized regardless of the drive command signal / stop command signal from the main cooling device, so that the wrong drive command signal / stop command signal when the main cooling device is out of order, etc. Can be ignored and the auxiliary cooling device itself can cool the heating element storage box. Therefore, for example, it is extremely useful as a cooling facility in a base station of communication equipment or other outdoor equipment.

DESCRIPTION OF SYMBOLS 1 Air heat exchange type air conditioner 2 1st inlet port 3 1st discharge port 4 2nd intake port 5 2nd discharge port 6 Main body case 7 1st ventilation fan 8 2nd ventilation fan 9 Heat exchanger 10 Auxiliary cooling control Device 11 Auxiliary Cooling Room Temperature Sensor 12 Auxiliary Cooling Outside Air Temperature Sensor 13 Control Board 14 First Inverter 15 Second Inverter 16 Indoor Temperature Detection Means 17 Outside Air Temperature Detection Means 18 Temperature Judgment Means 19 Receiver 20 Operation Instruction Means 21 Timing Means 22 Visual notification means 23 LED
24 Notification Communication Line 25 Notification Transmission Means 26 Non-Voltage Relay Contact 101 Heating Element Storage Device 102 Communication Device 103 Indoor Unit 104 Outdoor Unit 105 Refrigerant Pipe 106 Room Temperature Sensor 107 Control Device 108 Outside Air Temperature Sensor 109 Circuit Line 110 Intake Fan 111 Electric Damper 112 signal line

Claims (9)

A heat pump type air conditioner using a refrigerant as a main cooling device for cooling the inside of the heating element storage device in which the heating element is stored, an air heat exchange type air conditioner as an auxiliary cooling device, the main cooling device, and the auxiliary cooling device In the cooling system that operates the auxiliary cooling device according to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device. In consideration of the above, the cooling system for a heating element storage device is characterized in that the auxiliary cooling device is operated. An auxiliary cooling device is provided with an indoor temperature detecting means for detecting an indoor temperature in the heating element storage device and an outside air temperature detection means for detecting an outside air temperature outside the heating element storage device, and the indoor temperature detection means and the outside air temperature detection means. When the temperature determination means determines that the outside air temperature is lower than the room temperature, the temperature determination by the auxiliary cooling device is always performed, and the temperature determination is performed when the outside air temperature is higher than the room temperature. When the means determines, the stop temperature condition of the auxiliary cooling device, and this temperature determination means determines, and the operation instruction means for instructing operation / stop to the blower means provided in the auxiliary cooling device, these operation temperature condition or stop temperature condition The cooling system for a heating element storage device according to claim 1, wherein: A first threshold temperature higher than the operating threshold temperature at which the main cooling device operates is set in advance in the temperature determining means, and when a stop command signal is received from the main cooling device, the temperature determining means 3. The heating element storage according to claim 1, wherein the auxiliary cooling device is operated when the temperature determination means determines that the room temperature has exceeded the first threshold temperature in the determined state. Equipment cooling system. With the temperature judging means judging the operating temperature condition, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device is stopped is stored in the temperature judging means as the initial room temperature. When the time measuring means provided in the auxiliary cooling device starts measuring time, the time measuring means informs the temperature determining means that the preset measuring time has elapsed in the time measuring means, and when the measurement time has elapsed in the temperature determining means A temperature difference between a room temperature and an initial room temperature is obtained, and the auxiliary cooling device is operated when the temperature determination means determines that the temperature difference is higher than a temperature difference threshold preset in the temperature determination means. Item 3. A cooling system for a heating element storage device according to Item 1 or 2. With the temperature judging means judging the operating temperature condition, the drive command signal from the main cooling device is changed to a stop command signal, and the room temperature when the auxiliary cooling device is stopped is stored in the temperature judging means as the initial room temperature. The time measuring means provided in the auxiliary cooling device starts measuring time, and the temperature determining means informs the time measuring means that the temperature difference exceeding the preset measurement temperature preset in the temperature determining means with respect to the initial room temperature. The measurement time when the temperature difference exceeds the set measurement temperature is compared with the preset time set in the time measurement means, and the auxiliary cooling device is operated when the measurement means determines that the measurement time is shorter than the set time. The cooling system for a heating element storage device according to claim 1, wherein the heating system is a cooling system. A second threshold temperature lower than the stop threshold temperature at which the main cooling device stops is set in advance in the temperature determining means, and a drive command signal from the main cooling device is received when the temperature determining means determines that the operating temperature condition is satisfied. 6. The cooling system for a heating element storage device according to any one of claims 1 to 5, wherein if the temperature determination means determines that the room temperature has fallen below the second threshold temperature, the auxiliary cooling device is operated. . A third threshold temperature higher than the stop threshold temperature at which the main cooling device stops is preset in the temperature determining means, and a drive command signal is received from the main cooling device in a state where the temperature determining means determines that the stop temperature condition is met 7. The heating element storage device according to claim 1, wherein the auxiliary cooling device is brought into a stopped state when the temperature determination unit having an outdoor temperature exceeding the third threshold temperature determines. Cooling system. When the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the visual notification means provided in the auxiliary cooling device is used to issue a notification. The cooling system for a heating element storage device according to claim 1, wherein the heating system is a cooling system. When the operation of the auxiliary cooling device is different with respect to the drive command signal / stop command signal of the auxiliary cooling device transmitted from the main cooling device, the operation state is notified to the remote place provided for the auxiliary cooling device. 9. A cooling system for a heating element storage device according to claim 1, wherein the switch means as the transmission means issues an intentional signal of ON, OFF, ON during a certain period.

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