JP6989112B2 - Multi-part cooling system, equipment and method - Google Patents

Description

The present invention relates to a system, an apparatus and a method for cooling a plurality of compartments, for example, a plurality of isolated substrates, a plurality of adjacent control units, etc. by forced air cooling.

Patent Documents 1 and 2 describe a cooling device and a method for efficiently cooling by arranging a plurality of forced air cooling fan devices on a power supply device and a printed wiring board.

Japanese Unexamined Patent Publication No. 2000-307283 Japanese Unexamined Patent Publication No. 6-110559

In the power supply cooling control device and method described in Patent Document 1, a plurality of cooling fans are provided for a plurality of power supply devices, and the cooling fans are driven according to the number of power supply devices mounted, the operating status, the mounting position, and the like. It controls.

The cooling device described in Patent Document 2 cools a particularly large (large area) printed wiring board with a plurality of cooling fans, and detects the temperature at various positions of the printed wiring board with temperature sensors arranged at each position. However, the cooling fan located near the position where the temperature above the specified temperature is detected is selected and driven.

Both Patent Documents 1 and 2 are aimed at efficiently cooling a large power supply device and a printed wiring board.

In recent years, circuit boards and control (drive) devices (units) have become smaller. If a cooling fan is placed in each of these units and forced cooling is attempted, the cooling fan itself to be placed must also be made smaller. When the cooling fan becomes smaller, the air volume and pressure decrease considerably. Of course, the number of cooling fans needs to be as many as the number of units.

In the present invention, even if the circuit board or control unit is miniaturized, the size of the cooling fan is not reduced as compared with the size of the circuit board, and the number of cooling fans is as small as possible with respect to the number of multiple circuit boards or control units. The purpose is to be able to.

The multi-compartment cooling system according to the present invention has a plurality of control units that can be electrically connected to adjacent ones and a position where cooling air can be supplied to at least two adjacent control units, and one control. It is equipped with at least one fan device that can be electrically connected to the unit and is detachably arranged. Then, each control unit has a temperature sensor, a communication means for communicating with an adjacent control unit, a storage means for storing whether or not a fan device is connected to the control unit or a control unit adjacent to at least one of them, and the above-mentioned storage means. When the necessity of forced cooling is determined based on the detected temperature of the temperature sensor and it is determined that forced cooling is necessary, the fan device is driven or the control unit adjacent to one of them is driven based on the storage of the storage means. Is provided with a control means for determining whether to notify the drive request of the fan device.

The method for cooling a plurality of compartments according to the present invention includes a plurality of control units that can be electrically connected to adjacent ones and a position where cooling air can be supplied to at least two adjacent control units, and one control. In a multi-segment cooling system with at least one fan device that can be electrically connected to the unit and is detachably arranged, each control unit determines the need for forced cooling based on the temperature detected by the temperature sensor. ， When it is determined that forced cooling is necessary, drive the fan device based on the storage of the storage means that stores whether or not the fan device is connected to the control unit or the control unit adjacent to at least one of them. It is determined whether to notify the control unit adjacent to the one of the drive request of the fan device.

The control unit drives the fan device when the fan device is connected to the control unit in response to a fan device drive request from the control unit adjacent to the other.

For example, at the time of initialization, the communication means detects whether or not the fan device is connected to the control unit or at least one of the control units adjacent to the control unit by communicating with the mounted fan device and the adjacent control unit. The result may be stored in the storage means. Communication with a fan device includes an action or process that simply detects whether the fan device is connected.

According to the present invention, since at least two adjacent control units can be forcibly air-cooled by one fan device, the number of required fan devices can be reduced. Even if the control unit is made smaller and thinner, the fan device can be arranged across at least two control units, and it is not always necessary to reduce the size of the fan device itself to the extent that the size of the control unit is reduced. Therefore, a powerful fan device can be provided. As a result, the air volume of the cooling air can be made larger than when the fan device is miniaturized according to the miniaturization of the control unit, so that efficient cooling becomes possible.

Memorize whether a fan device is connected to the unit or a control unit adjacent to at least one of them, and drive the fan device of the control unit based on this memory, or drive the fan device to the control unit adjacent to one of them. Since it is determined whether or not to request, appropriate forced cooling can be performed according to the installation of the fan device. In addition, since the necessity of forced cooling is determined, the fan device is driven only when necessary and does not have to be driven all the time, so that the life of the fan device can be extended.

Since the fan device can be attached to and detached from the control unit, the fan device is placed in the control unit or control unit group that requires forced cooling among multiple control units, and the control unit that generates less heat and does not necessarily require forced cooling. Since it is not necessary to install the fan device and the mounting position of the fan device can be changed as needed, the user only needs to prepare the minimum required fan device.

The plurality of control units do not necessarily have to be connectable, and the fan unit does not necessarily have to be detachable.

The invention also provides such a cooling system and method. That is, the multi-compartment cooling system according to the present invention is arranged at a position where cooling air can be supplied to a plurality of control units electrically connected to adjacent ones and at least two adjacent control units, and one. It includes at least one fan device that is electrically connected to the control unit. Then, in each control unit, whether or not the fan device is connected to the judgment means for determining the necessity of forced cooling, the communication means for communicating with the adjacent control unit, and the control unit or the control unit adjacent to at least one of them. When the storage means for storing the storage means and the determination means determine the necessity of forced cooling, the fan device is driven based on the storage of the storage means, or the control unit adjacent to one of the storage means is requested to drive the fan device. It is provided with a control means for determining whether to notify.

In the cooling method of a plurality of compartments according to the present invention, a plurality of control units electrically connected to adjacent ones and at least two adjacent control units are arranged at a position where cooling air can be supplied to one control unit. In a multi-segment cooling system including at least one electrically connected fan device, when each control unit determines that forced cooling is necessary as a means for determining the necessity of forced cooling, the control unit is concerned. Alternatively, the fan device is driven or the control unit adjacent to the one is notified of the fan device drive request based on the storage of the storage means for storing whether or not the fan device is connected to the control unit adjacent to at least one of them. It is for determining whether or not.

In the above invention, a plurality of partitions may be configured by a control unit, or a plurality of mutually independent partitions may be, for example, a plurality of circuit boards. One circuit board constitutes one section, and a plurality of sections (circuit boards) are forcibly air-cooled by one fan device.

That is, in the multi-section cooling system according to the present invention, a plurality of circuit boards are arranged at intervals, a forced air cooling fan device is provided at a position where the plurality of circuit boards can be cooled, and at least one is provided. It is connected so that it can be driven and controlled by the control circuit of one circuit board, and the control circuit provided on each circuit board serves as a communication means for communicating with at least one adjacent circuit board and a judgment means for determining the necessity of forced cooling. , A storage means for storing whether or not a fan device is connected to the circuit board or a circuit board adjacent to at least one of them, and a storage means for storing the storage means when the determination means determines that forced cooling is necessary. Based on this, it is provided with a control means for determining whether to drive the fan device or notify the circuit board adjacent to the fan device of the drive request of the fan device.

The present invention also provides a cooling device represented by the control unit or circuit board described above.

This cooling device sends cooling air to at least two adjacent control units and a connecting means for detachably connecting to another control unit and a first connector for electrically connecting to the connected control unit. A mounting means for mounting the fan device in a supplyable position, a second connector for electrically connecting to the mounted fan device, a temperature sensor, and a communication means for communicating with other connected control units. Based on the storage means for storing whether or not the fan device is connected to the control unit or at least one of the other control units adjacent to the control unit, and the temperature detected by the temperature sensor, the necessity of forced cooling is determined and forced cooling is performed. Is provided with a control means for determining whether to drive the fan device or notify the control unit adjacent to the fan device of the drive request of the fan device based on the storage of the storage means when it is determined that the device is necessary. It is a thing.

Yet another form of cooling device according to the present invention is a first connector for electrically connecting to an adjacent control unit and a fan arranged at a position where cooling air can be supplied to at least two adjacent control units. A second connector for electrical connection to the device, a means of determining the need for forced cooling, a means of communication communicating with an adjacent control unit, and the control unit or other controls adjacent to at least one of them. A storage means for storing whether or not a fan device is connected to the unit, and a storage means for driving the fan device based on the storage of the storage means when the determination means determines the necessity of forced cooling, or one of them. It is provided with a control means for determining whether to notify the adjacent control unit of the drive request of the fan device. Here, the first and second connectors do not necessarily have to be detachable, and include simple fixed connection wiring.

It is a block diagram which shows the electric composition of the whole system including the control system including a plurality of control units, and the cooling system of a plurality of partitions provided therein. It is a flowchart which shows the flow of the initialization process. It is a flowchart which shows the flow of the forced cooling process of the control unit. It is a flowchart which shows the flow of the forced cooling process at the time of request from the right control unit. It is a perspective view of a single control unit seen from the right rear. It is a perspective view of a single control unit seen from the left rear. It is a perspective view which looked at the state which four control units were connected from the right rear. It is a perspective view which looked at the state which four control units were connected from the left front. It is a perspective view showing the circuit board arranged and fixed in the control unit taken out. (A) is a view from the right rear (corresponding to FIG. 5), and (B) is a view from the left rear (FIG. 6). Corresponds to). It shows a fan device (fan unit), (A) is a perspective view seen from diagonally above, and (B) is a perspective view seen from diagonally below.

FIG. 1 shows an example of an electrical configuration of an entire system including a control system including a plurality of control units (control devices) and a cooling system of a plurality of partitions provided therein. As an example of the control unit, it is a control system of an actuator including one or a plurality of motors, and not only a control circuit (including a CPU) for controlling these but also a drive circuit such as a motor may be built in.

Multiple control units are placed next to each other or next to each other. Adjacent (adjacent) control units are at least electrically connected to each other. The control units may be physically (mechanically) connected or fixed, or may be spaced apart from each other, as described below.

The control unit to be described is indicated by reference numeral 10. Since the description is centered on the control unit 10, the control unit 10 may be pointed to by the control unit itself, etc. in order to distinguish it from the adjacent control unit.

All control units have basically the same configuration. However, the control unit located at the end may lack some parts, functions, etc. because there is no adjacent control unit on one side, but this is not mentioned in particular. Therefore, multiple control units and the same components (circuits) in them are indicated with the same drawing reference reference numerals, but especially when it is necessary to distinguish and refer to the control units adjacent to the left and right sides. Indicates the control unit adjacent to the left side of the control unit 10 with the same drawing reference code and the subscript L for the same parts, etc. as the parts, etc. in the control unit 10, and the adjacent control unit on the right side. Is represented by adding an R subscript to the same drawing reference code.

The control unit 10 includes a control circuit 20 mounted on a circuit board (described later), and the control circuit 20 is composed of a CPU and its peripheral devices (interfaces and the like). In addition to being provided with means for realizing control functions such as actuators, the control circuit 20 includes means for determining the necessity of forced cooling, communication means for communicating with the fan device 30 and adjacent control units 10L and 10R, and forced cooling. A control means for performing various controls including the above is realized.

The control circuit 20 is further provided with a memory (storage means) 21. The memory 21 has an area used as a fan presence / absence flag. There are two types of fan presence / absence flags, one is a flag indicating whether the control unit 10 is equipped with a fan device 30 for forced cooling, and the other is a fan for forced cooling in the control unit 10L adjacent to the left side. It indicates whether or not the device is provided. The presence or absence of the fan device is determined by communication by the communication means.

The control unit 10 includes two types of connectors. The first connector is for electrically (communicating) connecting to the control circuits of the circuit boards of the adjacent control units 10L and 10R, and includes the left side connecting connector 24 and the right side connecting connector 25. Naturally, these connectors 24 and 25 are connected to the control circuit 20. The left side connector 24 can be detachably connected to the right side connection connector 25L of the left side control unit 10L. The right side connector 25 can be detachably connected to the left side connector 24R of the right control unit 10R. These connectors 24, 24R, 25, 25L are useful not only for electrical connection but also for mechanical connection between adjacent control units.

The second connector is a fan connector 26 for electrically connecting to the connector 31 of the fan device (fan unit) 30. These connectors 26 and 31 connect at least four lines: a power supply line, a ground line, a rotation speed signal line, and a mounting detection line. The power supply line and ground line are for supplying power from the control circuit 20 to the fan drive motor of the fan device 30. The control circuit 20 controls the switch 23 on and off to supply power to the fan device 30. Switch 23 can be realized regardless of whether it is contacted or non-contacted. The rotation speed line supplies the rotation speed signal from the rotation speed detector provided in the fan device 30 to the control circuit 20. The control circuit 20 confirms the rotation of the fan by the rotation speed signal. If necessary, the control circuit 20 controls the rotation speed of the drive motor of the fan device 30. The mounting detection line forms a closed circuit in the power supply line (or ground line) and the fan device 30, and whether the fan device 30 is mounted on the control unit 10 (whether or not it is mounted, and if it is mounted, is it stopped? It is used for the control circuit 20 to determine (whether or not) (attachment detection). This function shall also be included in the concept of communication between the control circuit 20 and the fan device 30. When it is determined that the fan device 30 is installed (whether it is operating or stopped), the fan presence / absence flag is turned on (1) for the unit.

As will be described later, in this embodiment, when the fan device 30 is mounted on the control unit 10, not only the control unit 10 but also the control unit 10R on the right side can be forcibly cooled (so that cooling air can be supplied). ) Will be placed.

The control unit 10 also has a built-in temperature sensor 22. The temperature sensor 22 detects the temperature of the circuit board, various circuits mounted on the circuit board, or the atmosphere thereof, and transmits the detected temperature to the control circuit 20. The control circuit 20 determines whether forced cooling is necessary (for example, by comparison with the threshold temperature) based on the input detection temperature (determination means).

Communication between the control unit 10 and the control unit 10L on the left side includes at least the following. That is, the fan device 30 is not mounted on the unit 10 in the control circuit of the control unit 10L on the left side from the control circuit 20 of the unit 10 (the fan presence / absence flag is off (0)), and the left side control unit 10L has no fan device 30. Sends a fan drive request when a fan device is installed and forced cooling is required. From the control unit 10L on the left side, when the control unit 10L on the left side detects that the fan device is installed (when the fan presence / absence flag of the left side control unit 10L is on), (generally at the time of initialization, as described later). ) The fan connection detection signal (input) is sent to the control unit 10. In response to this input, the control unit 10 turns on (1) the fan presence / absence flag for the left control unit. The fan drive request and the fan connection detection input can be realized by one line by switching the input / output of the control circuit (CPU) between the initialization time and the operation time.

Communication between the unit 10 and the control unit 10R on the right side includes at least the following. That is, when the control unit 10 detects that the fan device 30 is attached (the fan presence / absence flag of the control unit is on (1)) (at the time of initialization), the fan connection detection signal (output) is sent to the control unit 10R on the right side. Sent. From the control unit 10R on the right side, if the fan device is not mounted on the right control unit 10R and the fan device 30 is mounted on the control unit 10, forced cooling is required on the right control unit 10R. When this happens, a fan drive request signal is sent, and the control unit 10 accepts this signal. Fan connection detection output and fan drive request can also be realized with one line.

An example of the mechanical configuration of the control system (or cooling system) including the plurality of control units described above will be described with reference to FIGS. 5 to 10.

FIG. 5 is a perspective view of a single control unit as viewed from the rear right, and FIG. 6 is a perspective view of a single control unit as viewed from the rear left.

FIG. 7 is a perspective view of the state in which the four control units are connected from the right rear view, and FIG. 8 is a perspective view seen from the left front view.

9 (A) and 9 (B) are perspective views showing the circuit board arranged and fixed in the control unit taken out, and (A) is a view from the right rear (corresponding to FIG. 5), (B). ) Is viewed from the rear left (corresponding to FIG. 6). In these figures, only the connector is shown, and the control circuit and temperature sensor are not shown.

FIGS. 10 (A) and 10 (B) show a fan device (fan unit), (A) is a perspective view seen from diagonally above, and (B) is a perspective view seen from diagonally below. Here, the illustration of the fan itself, the drive motor, its drive circuit, and the like is omitted.

In particular, referring to FIGS. 5 and 6, four positioning pins 16 and a lock member 18 are provided on the front half portion of the right side surface of the housing (case) of the control unit 10, and the front half portion of the left side surface is provided at a position corresponding to them. Is provided with four positioning holes 17 and lock holes 19. When the positioning pin 16 of the adjacent control unit 10 is inserted into the positioning hole 17, the lock member 18 is inserted into the lock hole 19, and the operation plate 18A is rotated, the lock member 18 rotates in the lock hole 19 and 2 Two control units 10 are connected to each other. These positioning pins 16, lock members 18, positioning holes 17, and lock holes 19 are connecting means for detachably connecting the control unit 10.

A large number of ventilation holes (ventilation holes, windows) 14 are formed in the latter half of the right side surface of the control unit 10, and two heat radiation fins 12 are formed in the vertical direction (vertical direction) in the latter half of the left side surface. Ventilation (ventilation) grooves 13 are formed on both sides of the. The rear surface of the control unit 10 also acts as a heat dissipation fin. When a plurality of control units 10 are connected, the ventilation holes 14 face the grooves 13. As will be described later, since the fan device 30 is arranged at a position directly above the groove 13 of the two adjacent control units 10, the heat radiation fins 12 of the two adjacent control units 10 are forcibly cooled by the cooling air ( Heat is dissipated from the heat dissipation fin 12). Cooling air also enters the inside of the control unit 10 through the ventilation holes 14 and cools the circuit board 40 inside. Ventilation holes (ventilation holes, heat dissipation windows) 15 are also provided on the upper surface of the front part of the control unit 10.

The circuit board 40 shown in FIG. 9 is arranged and fixed in the control unit 10. The left side connector 24, right side connection connector 25, fan connector 26, various setting switches 42, connectors 43, 44, and 45 provided on the circuit board 40 are opened on the left side surface, right side surface, top surface, and front surface of the control unit 10. It is exposed to the outside through the opening. The connectors 43, 44, and 45 are connectors for driving the actuator (not shown), for the encoder signal, and for the drive power cutoff circuit, respectively.

The control unit 10 can be fixed to the fixing rail 50 on the rear surface. The control unit 10 is detachably fixed to the rail 50 by hanging the hook portion 51 on the rear surface of the control unit 10 on the rail 50 and sandwiching the lower part of the rail 50 with the lock claws 52 provided on the lower part of the rear surface so as to be vertically movable. Rail.

With reference to FIG. 10, the fan device 30 is provided with a connector 31 connected to the fan connector 26. Further, the fan device 30 is provided with two positioning pins 32 and two engaging claws 33 at the front portion thereof, and one engaging claw 33 at the rear portion thereof.

The fan device 30 is installed over two adjacent control units 10. That is, the positioning pin 32 is inserted into the positioning hole 34 provided in the center of the upper surface of the two adjacent control units, and slightly ahead of the positioning hole 34 in the center of the upper surface of the two adjacent control units 10. Two locking claws 33 are inserted into the locking holes 35 provided in the above to lock, and the rear locking holes 35 are formed in the upper rear surface of the control unit on the left side of the adjacent control unit 10. The claw 33 is locked, and the fan device 30 is detachably mounted across two adjacent control units 10. These positioning pins 32, locking claws 33, positioning holes 34, and locking holes 35 constitute the mounting means.

As can be seen from FIGS. 7 and 8, the fan device 30 is arranged on the upper surface of two adjacent control units 10 so as to block the upper opening of the ventilation (ventilation) groove 13 on both sides of the heat radiation fin 12. When the fan of the fan device 30 rotates, cooling air passes through all the grooves 13 of the two adjacent control units (up or down), and the circuit board 40 of the two adjacent control units 10 is forcibly cooled (air cooling). Is achieved.

The processing at the time of initialization will be described with reference to FIG. 2, focusing on the operation (processing) of the control circuit 20 of the control unit 10. This is the process of confirming the presence or absence of the fan device and mutual notification (communication) of the result.

It is checked whether the fan device 30 is mounted on the control unit 10, and if the fan device 30 is mounted (YES in S11) (state 1, that is, the control unit 10 and the right control unit 10R can be forcibly cooled. The fan device 30 is mounted at the position), the fan presence / absence flag is turned on for the control unit 10, and the fan presence is notified to the right control unit 10R (fan connection detection output) (S12).

If the fan device 30 is not mounted on the control unit 10 (NO in S11) (state 2 where the fan device is mounted on the left control unit 10L, or the fan device is mounted on the right control unit 10R. It is in the state 3), and notifies that the fan is not installed in the control unit 10R on the right side (S13). Further, since the notification of whether or not the fan device is installed is input from the left side control unit 10L (fan connection detection input), the fan presence / absence flag for the left side control unit 10L is kept on or off (S14). That is, if there is an input from the left control unit 10L that the fan is installed, the fan presence / absence flag for the left control unit is turned on. In this case, as will be described later, it is possible to request the left side control unit 10L to drive the fan device 30 for forced cooling.

Next, with reference to FIG. 3, a process will be described when it is determined in the control unit 10 that forced cooling is necessary because the detected temperature of the temperature sensor 23 exceeds a predetermined threshold temperature. ..

First, by looking at the state of the fan presence / absence flag for the control unit 10, it is determined whether or not the fan device 30 is mounted on the control unit 10 (S21), and if it is mounted, the control circuit 20 is the control unit. It drives the fan device 30 mounted on the 10 (S22).

If the fan device 30 is not mounted on the control unit 10, it is determined whether or not the fan device 30 is mounted on the left side control unit 10L by looking at the fan presence / absence flag for the left side control unit 10L (S23). If the left side control unit 10L is equipped with a fan device, the left side control unit 10L is requested to drive the fan device (S24). If the left control unit 10L drives the fan device mounted on the left control unit 10L in response to this request, cooling air is also supplied to the unit 10, so that the unit 10 is forcibly cooled.

When the fan device is not attached to the left control unit 30, forced cooling is no longer possible (S25). However, it can operate until an overheat error occurs. For example, when the detected temperature of the temperature sensor 22 exceeds the overheating error temperature, an overheating error is displayed or an overheating error signal is output. In some cases, the operation of the control unit 10 is stopped.

In forced air cooling, when the fan device 30 mounted on the control unit 10 is driven (S22), the rotation speed of the drive motor of the fan device 30 may be controlled based on the detected temperature of the temperature sensor 22. When forced cooling is performed by the left control unit 10L (S24), the detection temperature may be notified to the left control unit 10L.

When the temperature detected by the temperature sensor 22 falls below the predetermined threshold level, the drive of the fan device 30 may be stopped (when driven by S22), or the control unit on the left side is used to stop the forced cooling. You may notify 10L (when requesting fan drive in S24).

When the control circuit 20 of the control unit 10 is requested to drive the fan device by the control unit 10R on the right side, refer to FIG. 4 and confirm that the fan device 30 is mounted on the control unit 10. After that (S31), the fan device 30 of the control unit 10 is driven (S32). If there is a stop request from the right control unit 10R, the drive of the fan device 30 is stopped.

10, 10L, 10R control unit
11 Control unit housing (case)
12 Heat dissipation fins
13 Groove (ventilation)
14,15 Vents (heat dissipation window)
16 Positioning pin (connecting means)
17 Positioning hole (connecting means)
18 Lock member (connecting means)
18A operation plate
19 Lock hole (connecting means)
20 Control circuit
21 Memory (flag)
22 Temperature sensor
24, 24R, 25, 25L 1st connector
26 Second connector
30 Fan device (fan unit)
31 connector
32 Positioning pin (mounting means)
33 Locking claw (mounting means)
34 Positioning hole (mounting means)
35 Locking hole (mounting means)
40 Circuit board

Claims (15)

Multiple control units that can be electrically connected to adjacent ones,
It is equipped with at least one fan device that is detachably arranged so that it can be electrically connected to one control unit at a position where cooling air can be supplied to at least two adjacent control units.
Each control unit
Temperature sensor and
A communication means that communicates with an adjacent control unit,
A storage means for storing whether or not a fan device is connected to the control unit or a control unit adjacent to at least one of them.
When the necessity of forced cooling is determined based on the detected temperature of the temperature sensor and it is determined that forced cooling is necessary, the fan device is driven or adjacent to one of them based on the storage of the storage means. It is equipped with a control means for determining whether to notify the control unit of the fan device drive request.
The fan device is arranged at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
Multi-part cooling system. The communication means detects whether or not the fan device is connected to the control unit or at least one of the control units adjacent to the control unit by communication with the mounted fan device and the adjacent control unit, and stores the result as the storage means. Remember to
The cooling system according to claim 1. The first or second aspect of the present invention, wherein the control means drives the fan device when the fan device is connected to the control unit in response to a fan device drive request from a control unit adjacent to the other. Cooling system. Multiple control units that are electrically connected to adjacent ones,
It is equipped with at least one fan device that is arranged in a position where cooling air can be supplied to at least two adjacent control units and is electrically connected to one control unit.
Each control unit
Judgment means for determining the necessity of forced cooling,
A communication means that communicates with an adjacent control unit,
A storage means for storing whether or not a fan device is connected to the control unit or a control unit adjacent to at least one of them.
When the determination means determines the necessity of forced cooling, it is determined whether to drive the fan device or notify the control unit adjacent to the control unit of the fan device drive request based on the memory of the storage means. Equipped with control means to
The fan device is arranged at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
Multi-part cooling system. A connecting means for detachably connecting to another control unit and a first connector for electrically connecting to the connected control unit.
A mounting means for mounting the fan device at a position where cooling air can be supplied to at least two adjacent control units, and a second connector for electrically connecting to the mounted fan device.
Temperature sensor and
A communication means that communicates with other connected control units,
A storage means for storing whether or not a fan device is connected to the control unit or at least one of the adjacent control units.
When the necessity of forced cooling is determined based on the detected temperature of the temperature sensor and it is determined that forced cooling is necessary, the fan device is driven or controlled adjacent to the fan device based on the storage of the storage means. It is equipped with a control means for determining whether to notify the unit of a fan device drive request.
The fan device is mounted at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
Cooling system. The communication means detects whether or not the fan device is connected to the control unit or at least one of the control units adjacent to the control unit by communication with the mounted fan device and the adjacent control unit, and stores the result as the storage means. Remember to
The cooling device according to claim 5. The control means according to claim 5 or 6, wherein the control means drives the fan device when the fan device is connected to the control unit in response to a fan device drive request from a control unit adjacent to the other. Cooling system. A first connector for electrical connection to an adjacent control unit,
A second connector for electrical connection to a fan device located at a position where cooling air can be supplied to at least two adjacent control units.
Judgment means for determining the necessity of forced cooling,
A communication means that communicates with an adjacent control unit,
A storage means for storing whether or not a fan device is connected to the control unit or at least one of the adjacent control units.
When the determination means determines the necessity of forced cooling, it is determined whether to drive the fan device or notify the control unit adjacent to the fan device of the fan device drive request based on the storage of the storage means. Equipped with control means
The fan device is arranged at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
Cooling system. A plurality of control units each equipped with a communication means that can be electrically connected to an adjacent object and communicate with the adjacent object, and at a position where cooling air can be supplied to at least two adjacent control units. In a multi-segment cooling system with at least one fan device that is electrically connectable to one control unit and is detachably arranged.
When each control unit determines the necessity of forced cooling based on the temperature detected by the temperature sensor and determines that forced cooling is necessary, a fan device is connected to the control unit or a control unit adjacent to at least one of them. Based on the storage of the storage means for storing whether or not the fan device is stored, it is determined whether to drive the fan device or notify the control unit adjacent to the fan device to drive the fan device.
The fan device is arranged at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
How to cool multiple compartments. The communication means detects whether or not the fan device is connected to the control unit or at least one of the control units adjacent to the control unit by communication with the mounted fan device and the adjacent control unit, and stores the result as the storage means. Remember to
The cooling method according to claim 9. The cooling according to claim 9 or 10, wherein the control unit drives the fan device when the fan device is connected to the control unit in response to a fan device drive request from a control unit adjacent to the other. Method. Multiple control units that are electrically connected to adjacent ones, and at least one fan that is located at a position where cooling air can be supplied to at least two adjacent control units and is electrically connected to one control unit. In a multi-compartment cooling system equipped with equipment
A memory in which each control unit stores whether or not a fan device is connected to the control unit or a control unit adjacent to at least one of the control units when the means for determining the necessity of forced cooling determines that forced cooling is necessary. Based on the memory of the means, it is determined whether to drive the fan device or notify the control unit adjacent to the fan device of the fan device drive request.
The fan device is arranged at a position where cooling air can be supplied to the control unit and a control unit adjacent to the control unit.
How to cool multiple compartments. Multiple circuit boards are spaced apart and placed
A forced air cooling fan device is provided at a position where multiple circuit boards can be cooled, and is connected so that it can be driven and controlled by the control circuit of at least one circuit board.
The control circuit provided on each circuit board is
A communication means that communicates with at least one adjacent circuit board,
Judgment means for determining the necessity of forced cooling,
A storage means for storing whether or not a fan device is connected to the circuit board or a circuit board adjacent to at least one of them.
When the determination means determines that forced cooling is necessary, it is determined whether to drive the fan device or notify the circuit board adjacent to one of the fan device drive request based on the memory of the storage means. Equipped with control means to
The fan device is provided at a position where the circuit board and the circuit board adjacent to the circuit board can be cooled.
Multi-part cooling system. The communication means detects whether or not the fan device is connected to the circuit board or at least one of the adjacent circuit boards by communication with the fan device and the adjacent circuit boards, and stores the result in the storage means. ， ，
The cooling system according to claim 13. Said control means is responsive to a fan device drive request from the circuit board adjacent to the other, the fan unit is driven when the said circuit board fan device is connected, according to claim 13 or 14 Cooling system.

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