Battery cooling system for vehicle

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• exhausting means for exhausting the air used in cooling the battery to outside the vehicle;
• changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means;
• battery-residual-capacity detecting means for detecting a residual capacity of the battery;
• battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance;
• and
• exhaust controlling means for selecting said exhausting means by means of said changeover means and operating said cooling means when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• exhausting means for exhausting the air used in cooling the battery to outside the vehicle;
• changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means;
• air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment;
• and
• cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• cooling means having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• cooling-air circulating means for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• exhausting means for exhausting the air used in cooling the battery to outside the vehicle;
• changeover means for effecting a changeover between said cooling-air circulating means and said exhausting means;
• temperature detecting means for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery;
• increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting means;
• and
• changeover controlling means for selecting said exhausting means by said changeover means on the basis of a result of determination by said increase-rate determining means.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle;
• a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct;
• a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery;
• and
• changeover controlling means for changing said changeover damper over to an exhausting duct side when the temperature detected by said temperature detecting sensor has become greater than or equal to a predetermined value.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle;
• a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct;
• a battery-residual-capacity detecting sensor for detecting a residual capacity of the battery;
• battery-residual-capacity determining means for determining whether or not the detected residual capacity is within a predetermined range set in advance;
• and
• exhaust controlling means for changing said changeover damper over to an exhausting duct side and operating said cooling fan when it is determined by said battery-residual-capacity determining means that the detected residual capacity is outside the predetermined range.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle;
• a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct;
• air-conditioning load determining means for determining an air conditioning load required for said air conditioner in air conditioning an interior of the vehicle compartment;
• and
• cooling controlling means for stopping the operation of said cooling fan when it is determined by said air-conditioning load determining means that the air conditioning load is greater than a predetermined value.

A vehicle-use battery cooling system for cooling a battery mounted in a vehicle whose vehicle compartment is air conditioned by an air conditioner, so as to maintain the battery in a predetermined temperature range, comprising:

• a battery chamber for accommodating the battery;
• a cooling duct having a cooling fan and adapted to cool the battery by supplying air in the vehicle compartment to an interior of said battery chamber by said cooling fan;
• a cooling-air circulating duct for circulating air used in cooling the battery between said battery chamber and said vehicle compartment by guiding the air into said vehicle compartment;
• an exhausting duct for exhausting the air used in cooling the battery to outside the vehicle;
• a changeover damper for effecting a changeover between said cooling-air circulating duct and said exhausting duct;
• a temperature detecting sensor for detecting at least one of a temperature of the interior of said battery chamber and a temperature of said battery;
• increase-rate determining means for determining an increase rate of the temperature of the battery on the basis of a result of detection by said temperature detecting sensor;
• and
• changeover means for changing said changeover damper over to an exhausting duct side on the basis of a result of determination by said increase-rate determining means.