JP2003092837A - Portable power unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable power unit which informs the user of it when it is unable to be charged or discharged, has a cooling function, and is equipped with a nickel/cadmium battery capable of coping with high temperature as a storage battery. SOLUTION: This portable power unit 10 houses a converter part 12, an inverter 13, and the storage battery 14 within a casing 11. The above storage battery 14 is a nickel/cadmium battery, and the above casing 11 is equipped with a temperature detector 15 within and has informing functions 29 and 30, the above temperature detector 15 detects the internal temperature of the casing 11, and at or over a preset temperature, it informs the user of it by a buzzer sound and a lamp.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a function of notifying that charging or discharging cannot be performed when the ambient temperature is extremely high, a function of cooling, and a built-in high temperature compatible nicad battery. The present invention relates to a portable power supply device.

[0002]

2. Description of the Related Art Conventionally, as a control of this type of storage battery,
For example, there is one as described in JP-A-8-140283. FIG. 8 is a block diagram of the conventional control described in the above publication.

In FIG. 8, a storage battery control system 1 comprises a built-in fixed nickel-hydrogen battery 2, a voltage sensor 3, a temperature detector 4, a current sensor 5 and a charging control circuit 6.

The nickel-metal hydride battery 2 of the conventional example shows an exothermic reaction during charging and is accompanied by heat generation. Generally, the temperature rises by about 30 ° C. at the time of completion of charging with respect to the charging start temperature. For example, if the charging start temperature is 60 ° C., the temperature of the nickel-hydrogen battery 2 is 9 at the time of completion of charging.
It becomes 0 ° C. This not only causes the problem that the amount of chargeable electric power decreases, but also separates the positive electrode plate 7 and the negative electrode plate 8 provided inside the battery as shown in FIG. If the organic material (for example, nylon) of the separator 9 having the function of passing through is deteriorated remarkably when the temperature of 80 ° C. or higher is continued.

That is, in the case of the nickel hydrogen battery 2, the operating environment temperature (charging start temperature) is usually less than 50 ° C.

Therefore, in the conventional control, the upper limit value of the charging voltage of the nickel-hydrogen battery 2 is set in a predetermined temperature range and the upper limit value of the charging current, and the upper limit value of the voltage is set based on the temperature and the current during charging. The value is determined, and the charging is stopped when the charging voltage is equal to or higher than the voltage upper limit value. The charging completion time point is set so that the nickel hydrogen battery 2 operates (uses) at or below the upper limit temperature of the operating environment temperature. It is designed to be accurately discriminated.

[0007]

However, as the control of the conventional storage battery, the nickel-hydrogen battery 2 is used as follows.
Although the charging completion time is accurately determined and the battery is operated (used) at the upper limit temperature of the operating environment temperature or lower, there are the following problems.

(1) It is not a portable power supply unit that can be carried.

(2) It does not have a function of notifying the user that charging or discharging cannot be performed when the operating environment temperature is extremely high.

(3) The operating environment temperature (charging start temperature) at which charging can be continued is less than 50 ° C. But,
The advantage of a portable power supply that can be carried is that it can be used not only in campgrounds without a power supply, but also in a car on a seat. At this time, for example, if the vehicle is parked in the summer with the engine stopped, it is predicted that the temperature inside the vehicle becomes high and the temperature rises to 60 ° C. or higher.
Therefore, it is a necessary condition that the battery can be charged or discharged even at a use environment temperature (charging start temperature) of 60 ° C. or higher.

The present invention solves the above problems by providing a portable power supply device, notifying by a buzzer sound and a lamp that charging or discharging cannot be performed when the operating environment temperature is extremely high, and cooling. The ability to
Furthermore, it aims at providing the power supply device provided with the high temperature compatible NiCd battery as a storage battery.

[0012]

In order to solve the above-mentioned conventional problems, the power supply device of the present invention is a portable power supply device that can be carried around, the temperature is detected by a temperature detector, and the operating environment temperature is extremely high. In this case, a buzzer sound and a lamp notify that charging or discharging cannot be performed.

Further, the power supply device has a function of detecting the temperature by the temperature detector and cooling it by the cooling fan when the temperature of the operating environment is extremely high.

Further, the storage battery is equipped with a NiCd battery which is compatible with high temperature by using an organic material such as polypropylene having heat resistance added to the separator.
It is a power supply device in which the temperature is controlled so that the charging is stopped at 70 ° C. or higher and the charging can be continued up to 70 ° C.

As a result, a portable power supply unit that can be carried around is provided, a function is provided to inform the user that charging and discharging cannot be performed when the operating environment temperature is extremely high, and the operating environment temperature (charge As the starting temperature), the charging can be continued up to less than 60 ° C., and it can be used even in a vehicle under high temperature.

Further, the charging is stopped at 70 ° C. or higher, and
It is possible to provide a power supply device in which the temperature is controlled so that charging can be continued up to 0 ° C., and the usability is greatly improved for the user who uses it.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 is a portable power supply unit in which a converter unit, an inverter unit, and a storage battery are integrally housed in a housing, and the storage battery is a Nicad battery, and the housing A temperature detector and a notification function are provided inside, and the temperature detector detects the internal temperature of the housing and can notify by buzzer sound and lamp that charging or discharging cannot be performed at a temperature higher than a preset temperature. By using the portable power supply device, it is possible to provide a portable power supply device that gives a user a sense of security and an increased understanding and recognition in order to notify the user when the operating environment temperature is extremely high.

According to a second aspect of the present invention, a portable power supply device that informs a buzzer sound and a lamp that charging or discharging cannot be performed when a temperature detector provided inside the housing detects a temperature of 60 ° C. or higher. By adopting the above, it is possible to use the goodness of portability that can be carried, and pay attention to the fact that it exhibits an endothermic reaction when charging Nicad batteries, and by using Nicad batteries it can be used even in the car in the summer Becomes Also, unlike the nickel-hydrogen battery type, it is cheaper.

According to the third aspect of the present invention, when a temperature detector provided inside the housing detects a temperature of 60 ° C. or higher, charging or discharging is informed by a buzzer sound and a lamp. By using a portable power supply unit configured to notify by buzzer sound and lamp that charging or discharging can be performed at, it can be used even in places with high outdoor environment, including in the vehicle in the summer, and can be used by users. It can be a gentle call.

According to a fourth aspect of the present invention, a converter unit, an inverter unit, and a storage battery are integrally housed in a housing to form a portable power supply device. The storage battery is a nicad battery, and a temperature detection is performed inside the housing. Equipped with a cooling fan and
A portable power supply device configured to detect the internal temperature of the housing with the temperature detector and operate the cooling fan at a temperature equal to or higher than a preset temperature to cool the inside of the housing, particularly in summer. Assuming that the temperature inside the car has risen to 60 ° C or higher when the vehicle is parked with the engine stopped, the air conditioner is driven after returning to the car. Although the Nicad battery in the power supply unit is solid and does not drop in temperature rapidly, it drops rapidly to a temperature at which it can be charged or discharged to cool it with a cooling fan, which is not the case in the past. Differently, it is very easy to use.

According to a fifth aspect of the present invention, when a temperature detector provided inside the housing detects a temperature of 60 ° C. or higher, a buzzer sound and a lamp notify that charging or discharging cannot be performed, and at the same time, a cooling fan. Is operated to cool the inside of the housing, and charging and discharging can be performed at a temperature of less than 60 ° C, and at the same time, the cooling fan is stopped. It can be used with a sense of security even in places with high temperatures.

According to a sixth aspect of the present invention, a converter unit, an inverter unit, and a storage battery are integrally housed in a housing to form a portable power supply device. The storage battery is a Nicad battery, and the NiCad battery separator is heat-resistant. It is cheaper than a nickel-hydrogen battery by using a portable power supply device that can be charged or discharged to a temperature of less than 70 ° C. by using an organic material such as polypropylene, which has a property of being added, and making it a high temperature type. Also, the operating environment temperature can be used up to a temperature of less than 70 ° C. as compared with a temperature of less than 50 ° C. of a nickel hydrogen battery, and the usability is significantly improved.

[0023]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1 to 4 show a portable power supply device 10 according to Embodiment 1 of the present invention. 1 is an external perspective view of a portable power supply device, FIG. 2 is a perspective view of a built-in portion of the portable power supply device, FIG. 3 is a wiring diagram, and FIG. 4 (a) is an external view of a car.
(B) is a perspective view when a portable power supply device is mounted on a seat in a vehicle, and (c) is a perspective view of a cigarette lighter adapter for charging.

1 and 2, a portable power supply device 1
In the housing 0, a converter unit 12, an inverter unit 13, a storage battery 14, and a temperature detector 15 are built in the housing 11.

The housing 11 is formed of a main body 16 and a lid 17, and is fixedly integrated with a fixing screw 18 in a fixing hole 18. The operation section 20 of the main body section 16 has a power on / off switch 2
1, a charging jack 22, a load on / off switch 23, and a load outlet 24. The lid portion 17 is provided with a display portion 25 for indicating the state of charge of the storage battery 14.

Further, the housing 11 is provided with a portable handle 26 and legs 27. Reference numeral 28 denotes a load of an electric device, such as an AV personal computer, which is connected to the load outlet 24 of the operation unit 20.

FIG. 3 is a connection diagram, in which the converter unit 12, the inverter unit 13, and the storage battery 14 are connected in parallel. The buzzer 29 and the lamp 30 are controlled by a power supply circuit 31 taken out from the circuit of the storage battery 14 and a control unit (microcomputer).

Portable power supply unit 1 configured as described above
Regarding 0, the operation and action will be described below.

First, an adapter 32 of a cigarette lighter for charging is inserted and directly connected to the charging jack portion 22 of the operating portion 20 of the housing 11 for charging while the vehicle is traveling, and the converter portion 1 is connected.
The rechargeable battery 14 is charged (stored) via 2 (in addition, there is a method of charging from an electric power line of a home with an adapter of an AC / DC converter or a method of charging from a solar battery).

At this time, the converter section 12 is provided with an overcharge prevention function so as not to overcharge and an overdischarge prevention device (not shown) so as not to overdischarge.

The converter unit 12 has a DC of 180V.
It is boosted back and forth. On the other hand, the inverter unit 13 converts DC into AC, and outputs 100V AC.

Next, regarding the control aspect of the conventional device of this type, generally, when the temperature of the storage battery rises to 40 ° C. or higher, the problem that the amount of chargeable electric power drops extremely occurs. Further, when the temperature of the storage battery becomes 80 ° C. or higher during charging or discharging, charging or discharging is automatically stopped to protect the storage battery.

The control side of the first embodiment of the present invention will be described. The power on / off switch 21 of the operation unit 20 is set to "on" and the charging jack 22 is charged with a charging cigarette lighter for charging while the vehicle is running. If the temperature detector 15 detects a temperature of less than 60 ° C. when the adapter 32 is directly connected and charging is started, normal charging or discharging can be performed.

However, if the temperature detector 15 detects a temperature of 60 ° C. or higher, charging and discharging are disabled.

For example, as shown in FIGS. 4 (a) and 4 (b), the portable power supply unit 1 is now mounted on the seat 34 in the vehicle 33.
Assuming that the temperature inside the car 33 has risen to 60 ° C. or higher when the vehicle is parked with the engine stopped in the summer with 0, the car will return to the car 33 and drive the car. Although the air conditioner (not shown) in the vehicle is driven, the air temperature in the vehicle decreases rapidly after the start of traveling, but the storage battery 14 in the portable power supply device 10 is solid and does not decrease in temperature rapidly. It is a thing. At this time, when the temperature detector 15 detects 60 ° C. or higher, charging or discharging is automatically stopped and a beep sound and a lamp are issued.

Next, the storage battery 14 will be described in detail. As described above, the nickel-hydrogen battery as a conventional example exhibits an exothermic reaction at the time of charging and is accompanied by heat generation, and normally, the temperature rises from the charging start temperature by about 30 ° C. at the time of complete charging. For example, if the charging start temperature is 60 ° C., the temperature of the nickel-hydrogen battery will be 90 ° C. at the charging completion point, which is very unsatisfactory.

Therefore, the nickel-hydrogen battery cannot be fully charged until the charging start temperature is lower than 50 ° C., and the portable power supply unit 1 is installed in the seat 34 of the vehicle 33.
When used with 0 left, nickel-hydrogen batteries are not good. On the other hand, the portable power supply device 1 of the present invention
In No. 0, the Nicad battery was used as the storage battery 14, and unlike the Ni-MH battery, the Nicad battery undergoes an endothermic reaction at the time of charging, and the temperature does not rise much after the start of charging (usually about 10 ° C. or lower). Therefore, even if the charging start temperature is about 60 ° C., no problem occurs.

Regarding the notification, it is conceivable that the notification is not limited to continuous notification but intermittent notification. Further, when the temperature detector 15 detects a temperature lower than 60 ° C., the beeping sound and the notification by the lamp are stopped, and the charging or discharging can be performed. At this time, 60 ℃ or more and 60 ℃
Although there is no difference when the temperature is less than the above value, in reality, when the temperature is lowered from 57 ° C. to 58 ° C. from the responsiveness, charging and discharging are possible.
However, if the operating environment temperature starts from a low temperature,
It can be charged or discharged up to less than 60 ° C.

As described above, in the first embodiment of the present invention, the user who uses the lamp 30 is notified by blinking the lamp 30. In addition, there is a case where the user does not notice it alone. By doing so, you will recognize and understand that the operating environment temperature is too high.

As a result, it is not a failure, and
It is possible to become a product that is kind to the users who use it, without being left with doubts.

In addition to being able to take advantage of the portability of being portable, it is cheaper than the nickel-hydrogen battery type and can be used even in a vehicle in the summer.

(Embodiment 2) FIG. 5 shows a portable power supply unit 35 according to Embodiment 2 of the present invention. FIG. 5 is a perspective view of the built-in portion of the portable power supply device.

The portable power supply unit 35 of the second embodiment has the converter unit 12, the inverter unit 13, the storage battery 14, and the temperature detector 15 built in the housing 11, as in the first embodiment of the present invention.

The difference is that the cooling fan 36 is provided inside the housing 11.
The operation will be described by providing the above and providing the intake port 37 and the exhaust port 38 on the side surface of the main body portion 16 of the housing 11.

In the second embodiment, at the time of charging, the power supply on / off switch 21 is set to "on", and the charging jack portion 22 is provided.
If the temperature sensor 15 detects a temperature of less than 60 ° C when the charging cigarette lighter adapter 32 is inserted and directly connected for charging while the vehicle is running, charging or discharging can be performed normally. is there.

However, when the temperature detector 15 detects a temperature of 60 ° C. or higher, charging or discharging is disabled and the cooling fan 36 is operated to cool the storage battery 14 inside the housing 11.

For example, as shown in FIGS. 4 (a) and 4 (b) of the first embodiment, the portable power supply device 35 is placed on the seat 34 in the car 33, and the engine is stopped in the summer. Assuming that the temperature inside the vehicle 33 has risen to 60 ° C. or higher when the vehicle is parked, the vehicle returns to the vehicle and drives an air conditioner (not shown) in the vehicle while traveling. After the start of traveling, the air temperature in the vehicle rapidly decreases, but the storage battery 14 in the portable power supply device 35 is solid and does not rapidly decrease in temperature.

At this time, the cooling fan 36 operates and the air in the vehicle interior 33, which has rapidly dropped, is sucked in through the intake port 37 to cool the storage battery 14. Then, the temperature is quickly lowered to a temperature lower than the use environment so that charging and discharging can be performed.

As described above, according to the second embodiment of the present invention, when the ambient temperature is high, the temperature can be charged or discharged for cooling by the cooling fan, and the temperature drops rapidly. The usability will be greatly improved.

Further, when the temperature detector 15 provided inside the portable power supply device 35 detects a temperature of 60 ° C. or higher, a beeping sound and a lamp are used to notify that charging or discharging cannot be performed, and at the same time, the cooling fan 36 operates. By using a portable power supply device that cools the inside of the chassis 11 and can be charged or discharged at less than 60 ° C and the cooling fan 36 is stopped at the same time, the ambient operating temperature outside the vehicle including in the vehicle in the summer It can be used with a sense of security even in high places.

(Third Embodiment) FIG. 6 shows a portable power supply device 39 according to a third embodiment of the present invention. FIG. 6 is an external view of the portable power supply device, and FIG. 7 is a block diagram showing the separator 40 of the storage battery 14.

The portable power source unit 39 of the third embodiment is similar to the first and second embodiments of the present invention in that the converter unit 1 is provided inside the housing 11.
2, inverter unit 13, storage battery 14, and temperature detector 1
Built-in 5.

The difference is that a high temperature compatible nicad battery is used for the storage battery 14, and its operation will be described.

As described in the first and second embodiments, by using the nickel-cadmium battery as the storage battery 14, the nickel-metal hydride battery as a conventional example can be used at an ambient temperature of less than 50 ° C. On the other hand, unlike Ni-MH batteries, NiCad batteries have an endothermic reaction during charging, and the temperature does not rise so much after charging is started, so there is no problem even when the operating environment temperature is around 60 ° C. It is a thing.

On the other hand, the third embodiment further includes a nickel-cadmium battery having improved heat resistance so that charging or discharging can be performed even when the operating environment temperature is higher than 60 ° C.

That is, as shown in FIG. 7, as a material for the separator 40, which separates the positive electrode plate 41 and the negative electrode plate 42 provided inside the NiCd battery, prevents a short circuit due to contact of both electrodes, and passes ions. The heat resistance is improved by using an olefin resin such as polyethylene, polypropylene or the like.

As a result, it becomes possible to realize the portable power supply device 39 which can be charged or discharged normally as long as the temperature detector 15 detects a temperature lower than 70 ° C., which is cheaper than the nickel-hydrogen battery and can be used in the environment. The temperature of the nickel-metal hydride battery is lower than 50 ° C, whereas the temperature of the high temperature compatible nicad battery is lower than 70 ° C, which greatly improves the usability.

[0059]

As described above, according to claims 1 to 6, the converter portion, the inverter portion, and the storage battery are integrally housed in a housing to form a portable power supply device, and the storage battery is a nicad battery. , A temperature detector and a notification function are provided inside the housing, the temperature detector detects the internal temperature of the housing, and informs with a buzzer sound and a lamp that charging or discharging cannot be performed at a temperature higher than a preset temperature. By using the portable power supply device, the user is informed of a sense of security and understanding when the operating environment temperature is extremely high.

In addition, it is possible to take advantage of the portability of being portable, and at the same time, unlike the nickel-hydrogen battery type, the cost is low and it can be used even in a vehicle in the summer.

Further, the use environment temperature is less than 50 ° C. of the nickel-hydrogen battery, whereas the high-temperature compatible nicad battery is 70
It is below ℃, and the usability is greatly improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of a portable power supply device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a built-in portion of the portable power supply device according to the first embodiment of the present invention.

FIG. 3 is a connection diagram of the portable power supply device according to the first embodiment of the present invention.

FIG. 4A is an external view of a vehicle in which the portable power supply device according to the first embodiment of the present invention is installed, and FIG. 4B is a perspective view of a vehicle seat in which the portable power supply device according to the first embodiment of the present invention is installed. (C) A perspective view of a cigarette lighter adapter for charging the portable power supply according to the first embodiment of the present invention.

FIG. 5 is a perspective view of a built-in portion of the portable power supply device according to the second embodiment of the present invention.

FIG. 6 is an external view of a portable power supply device according to a third embodiment of the present invention.

FIG. 7 is a block diagram of a separator of a storage battery according to a third embodiment of the present invention.

FIG. 8 is a block diagram of a conventional storage battery control circuit.

FIG. 9 is a block diagram of a conventional storage battery separator.

[Explanation of symbols]

10, 35, 39 Portable power supply 11 housing 12 Converter section 13 Inverter section 14 Storage battery 15 Temperature detector 29 Notification function (buzzer) 30 Notification function (lamp) 36 Cooling fan 40 Separator part

Front page continuation (51) Int.Cl. ⁷ identification code FI theme code (reference) H02H 7/18 H02H 7/18 H02J 7/04 H02J 7/04 N 7/10 7/10 N (72) Inventor Sadahira Masafumi 1006, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Tomoya Fujita, 1006, Kadoma, Kadoma, Osaka Prefecture F-term (Reference) 5G003 BA01 CB02 EA08 GB03 GB06 5G053 AA14 BA06 DA03 FA06 5H028 AA05 BB11 EE06 FF03 HH08 5H030 AA08 AS03 AS05 AS08 BB14 DD20 FF22 FF64 FF68 5H031 AA03 CC05 HH06 KK01

Claims (6)

[Claims] 1. A portable power supply device in which a converter unit, an inverter unit, and a storage battery are integrally housed in a housing, and the storage battery is a nickel-cadmium battery, and a temperature detector and a notification function are provided inside the housing. A portable power supply device that detects the internal temperature of the housing with the temperature detector and informs by a buzzer sound and a lamp that charging or discharging cannot be performed at a temperature higher than a preset temperature. 2. The temperature detector provided inside the housing is 60 ° C.
2. The portable power supply device according to claim 1, wherein a buzzer sound and a lamp inform that charging or discharging cannot be performed when the above temperature is detected. 3. The temperature detector provided inside the housing is 60 ° C.
When the temperature above is detected, a buzzer sound and a lamp notify that charging and discharging cannot be performed, and a buzzer sound and a lamp notify that charging and discharging can be performed at a temperature lower than 60 ° C. Portable power supply. 4. A portable power supply unit in which a converter unit, an inverter unit, and a storage battery are integrally housed in a housing,
The storage battery is a nickel-cadmium battery, a temperature detector and a cooling fan are provided inside the housing, the internal temperature of the housing is detected by the temperature detector, and the cooling fan is operated at a temperature equal to or higher than a preset temperature. A portable power supply device configured to cool the inside of the housing. 5. The temperature detector provided inside the housing is 60 ° C.
When the temperature above is detected, a buzzer sound and a lamp inform that charging or discharging cannot be performed, and at the same time, a cooling fan operates to cool the inside of the housing, and charging or discharging can be performed at a temperature lower than 60 ° C, and at the same time a cooling fan The portable power supply unit according to claim 1 or 4, which is configured to stop. 6. A portable power supply unit in which a converter unit, an inverter unit, and a storage battery are integrally housed in a housing,
A portable power source capable of charging or discharging to a temperature of less than 70 ° C. by using the storage battery as a nicad battery and using a high temperature compatible type using an organic material such as polypropylene having heat resistance added to the separator of the nicad battery apparatus.