JP2009238494A - Battery discriminating device and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery discriminating device that can discriminate a battery even when a primary battery and a secondary battery are in the same form, and can discriminate the battery in a short time, and to provide a control method for such a device. <P>SOLUTION: A battery mounting part 10 is a portion for mounting a battery at the time of charging/discharging and the like as shown in Fig.1. Therefore, the battery mounting part 10 is provided with a positive electrode 1 corresponding to a positive electrode terminal of the battery and a negative electrode 2 corresponding to a negative electrode terminal of the battery. Further, a battery detection terminal 3 for detecting the voltage is arranged at a position that comes in contact with a peripheral part of the positive electrode terminal at the battery mounting time. A battery determination section 14c within an arithmetic unit 14 determines whether or not the voltage data A between the positive electrode 1 and the negative electrode 2 is equal to the voltage data B between the battery detection terminal 3 and the negative electrode 2, and determines the battery to be a primary battery if they are equal, or the battery to be a secondary battery if they are not equal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for discriminating the type of a battery, and relates to a battery discriminating apparatus capable of discriminating the type of a battery even if it is a secondary battery having a general shape instead of a special shape, and a control method thereof.

  Conventionally, electronic devices that use batteries as a power source have been distributed in the market. Especially, they are used in music / video playback devices such as disc players and electronic devices such as recorders, and also in acoustic systems such as wireless microphones and amplifiers. Has also been used.

  As a battery used for the power source of such an electronic device, there are a secondary battery such as a nickel metal hydride battery that can be repeatedly used by charging, and a primary battery such as a manganese battery or an alkaline battery that cannot be charged.

  In other words, the secondary battery can be recharged and used repeatedly by connecting a charger even when the actual voltage drops due to use, whereas the primary battery has a voltage once reduced. The battery cannot be recovered by charging. For this reason, if a charging current is accidentally applied to the primary battery, the electrolyte solution leaks, causing not only corrosion of the primary battery but also destruction of the charger on the charging current supply side.

  Therefore, in an electronic device that uses a battery as a power source, it is necessary to distinguish between a primary battery and a secondary battery so that a charging current does not flow through the primary battery when the battery is used. Discriminating devices have been proposed.

  In the prior art, when the remaining capacity of the secondary battery is exhausted, the voltage at the start of use of the battery pack composed of a plurality of batteries and the use for a predetermined time are used so as not to distinguish the secondary battery as the primary battery. A method has been proposed in which a difference voltage is calculated by comparing with a later voltage, and whether the battery in the battery pack is a primary battery or a secondary voltage from the difference voltage and a predetermined reference value ( Patent Document 1).

  In addition, a determination method has been proposed in which a voltage between both electrodes of a battery in a charging device is detected for a predetermined time to determine whether the battery is a secondary battery based on this voltage (see Patent Document 2). Specifically, it is determined whether or not the maximum value of the voltage between both electrodes of the battery exceeds a predetermined threshold, and if it exceeds, it is determined that the battery is a secondary battery.

  As described above, a battery identification method for determining whether a battery is a primary battery or a secondary battery based on a voltage between a battery pack in which a plurality of batteries are loaded or between both electrodes of the battery has been conventionally developed. However, in the method as described above, when the battery is over-discharged, it becomes impossible to determine whether the battery is a primary battery or a secondary battery, resulting in a problem that the determination accuracy is lowered.

Therefore, in order to improve the discrimination accuracy of the primary battery or the secondary battery, in addition to applying a voltage to the positive electrode, the battery discrimination circuit detects the voltage from the side electrode on the negative electrode side. A method for discriminating secondary batteries has been proposed (see Patent Document 3). More specifically, in the case of a secondary battery, the magnitude of the battery voltage detected through the side electrode using the point that the side face on the negative electrode side is conductive and the case of the primary battery is not conductive on the side face. Thus, it is determined whether the battery is a primary battery or a secondary battery.
Japanese Patent Laid-Open No. 11-3732 JP 2000-228827 A JP 2004-87354 A

  By the way, in the method of detecting the voltage from the side electrode of the battery as described above and discriminating the battery based on the voltage, it is possible to discriminate the battery from the side electrode if it is a specially processed secondary battery. However, when a secondary battery having the same shape as a commercially available primary battery is used, there is a problem that the secondary battery is mistakenly recognized as a primary battery and cannot be appropriately charged to the secondary battery. occured.

  Further, in such a method, since it is determined whether the battery is a primary battery or a secondary battery by measuring the discharge characteristics of the battery for a certain period of time, it takes a certain amount of time to determine the battery. Therefore, during measurement of the discharge characteristics of the battery, a charging voltage is supplied to the battery. If the battery is a primary battery, the electrolyte may leak and the battery may be corroded.

  Furthermore, in the method for detecting the voltage from the side electrode as described above, two batteries are to be discriminated, so that the electronic device using one battery or the electronic device using three or more batteries is used. It was unclear whether it could be applied.

  The present invention has been proposed in order to solve the above-described problems, and the purpose of the present invention is to enable battery discrimination even when the primary battery and the secondary battery have the same shape. Another object of the present invention is to provide a battery discrimination device capable of discriminating a battery in a short time and a control method thereof. Another object of the present invention is to propose a battery discriminating apparatus capable of appropriately discriminating between a primary battery and a secondary battery for a device using a single battery or a plurality of batteries, and a control method thereof. To do.

  In order to achieve the above object, the invention according to claim 1 is based on the voltage of the battery, and the battery has a non-conductive member at the periphery of the positive terminal or the positive battery having a conductive member at the periphery of the positive terminal. In the battery discriminating apparatus for discriminating whether the battery is a secondary battery having a battery detection terminal provided in contact with a peripheral portion of the positive electrode terminal, a voltage between both electrodes of the battery, and a voltage between the battery detection terminal and the negative electrode terminal Based on the above, there is provided a discriminating means for discriminating whether the battery is a primary battery or a secondary battery.

  The invention according to claim 6 captures the invention according to claim 1 from the viewpoint of the method, wherein the battery is a primary battery or a positive electrode having a conductive member in the periphery of the positive electrode terminal based on the voltage of the battery. In the control method of the battery discriminating apparatus in which the computer discriminates whether the secondary battery has a non-conductive member in the peripheral portion of the terminal, a battery detection terminal that contacts the peripheral portion of the positive electrode terminal is provided, and the computer A determination step is performed for determining whether the battery is a primary battery or a secondary battery based on a voltage between both electrodes of the battery and a voltage between the battery detection terminal and the negative electrode terminal.

  According to a second aspect of the present invention, in the battery discriminating apparatus according to the first aspect, the discriminating unit is configured such that the voltage between the two electrodes of the battery matches the voltage between the battery detection terminal and the negative electrode terminal. The battery is determined to be a primary battery, and if the batteries do not match, the battery is determined to be a secondary battery.

  The invention of claim 7 captures the invention of claim 2 from the viewpoint of the method, and in the control method of the battery discriminating apparatus according to claim 6, the discriminating step is performed between the electrodes of the battery. And the voltage between the battery detection terminal and the negative electrode terminal are determined to be a primary battery, and when they do not match, the battery is determined to be a secondary battery.

  In the above aspect, by providing the battery detection terminal in the peripheral portion of the positive electrode terminal, even if the primary battery and the secondary battery have the same shape, the voltage between both electrodes of the battery, the battery detection terminal, and the negative electrode By comparing the voltage between the terminals, it is possible to determine whether the battery is a primary battery or a secondary battery. That is, the peripheral part of the positive electrode terminal has conductivity in the case of a primary battery, and does not have conductivity in the case of a secondary battery. Therefore, the battery detection terminal is simply brought into contact with the peripheral part of the positive electrode terminal. Thus, even if the primary battery and the secondary battery have the same shape, it is possible by determining the type of the battery.

In addition, the determination means uses whether or not the battery detection terminal conducts through the continuity / non-conduction of the periphery of the positive terminal without measuring the discharge characteristics of the battery for a certain period of time. Whether it is a secondary battery can be determined. Therefore, even when the battery is determined to be a primary battery, it is possible to prevent a voltage from being accidentally supplied to the primary battery.
Here, the “determination unit” corresponds to a battery determination unit in the arithmetic device of the present embodiment described later.

  A third aspect of the present invention provides the battery discrimination device according to the first or second aspect, further comprising: a charging power source that applies a charging voltage between both electrodes of the battery; and a charging control unit that controls the charging voltage. The charging control unit stops charging voltage to the battery when the determining unit determines that the battery is a primary battery.

  The invention of claim 8 captures the invention of claim 3 from the viewpoint of the method, and in the control method of the battery discriminating device of claim 6 or 7, a charging voltage between both electrodes of the battery. And the computer stops the charging voltage to the battery when the battery is determined to be a primary battery by the determining step.

In the above-described aspect, the charging function is provided by the charging power source, and when the battery is determined to be the primary battery by the determining unit, the supply of the charging voltage can be stopped through the charging control unit. It becomes possible to prevent supply accurately. In addition, when the determination unit determines that the battery is a secondary battery, it is possible to appropriately supply the charging voltage to the secondary battery determined through the charge control unit.
Here, the “charging power source” corresponds to a charger according to this embodiment described later.
In addition, the “charge control unit” corresponds to a charge switch control unit in the arithmetic device that controls ON / OFF of the charge switch in the embodiment described later.

  The invention of claim 4 determines from the battery voltage whether the battery is a primary battery having a conductive member around the positive electrode terminal or a secondary battery having a non-conductive member around the positive electrode terminal. In the battery discriminating apparatus, a battery detection terminal that contacts the periphery of the positive electrode terminal is provided, and when the battery detection terminal is conductive, the battery is determined to be a primary battery, and when the battery detection terminal is not conductive, the battery is secondary A continuity determining means for determining that the battery is used is provided.

  The invention according to claim 9 captures the invention according to claim 4 from the viewpoint of the method, and from the voltage of the battery, the battery is a primary battery or a positive electrode having a conductive member around the positive electrode terminal. In the control method of the battery discriminating apparatus in which the computer discriminates whether the secondary battery has a non-conductive member in the peripheral portion of the terminal, a battery detection terminal that contacts the peripheral portion of the positive electrode terminal is provided, and the computer A continuity determination step is performed in which it is determined that the battery is a primary battery when the battery detection terminal is conductive and the battery is a secondary battery when the battery detection terminal is not conductive.

  According to a fifth aspect of the present invention, in the battery discriminating apparatus according to the fourth aspect, the continuity determining means determines whether the battery detection terminal is conductive based on a voltage between the battery detection terminal and the negative electrode terminal. It is characterized by that.

  The invention of claim 10 captures the invention of claim 5 from the viewpoint of the method, and in the control method of the battery discriminating apparatus according to claim 9, the continuity determining step includes the battery detection terminal. And whether the battery detection terminal is conductive based on the voltage between the negative electrode terminal and the negative electrode terminal.

In the above aspect, whether or not the battery detection terminal is conducting based on the detected voltage by detecting the voltage between the battery detection terminal and the negative electrode terminal without detecting the voltage between the two electrodes of the battery. By determining whether or not, it is possible to distinguish between a primary battery and a secondary battery having the same shape.
Here, the “continuity determination unit” corresponds to a continuity determination unit in the arithmetic device of the present embodiment described later.

  According to the present invention as described above, even when a primary battery and a secondary battery having the same shape are used, the battery detection terminal is provided, so that it is obtained from the battery negative terminal and the battery detection terminal. It is possible to determine whether the battery is a primary battery or a secondary battery based on the applied voltage. Therefore, a charging voltage can be appropriately supplied to the determined secondary battery.

  In addition, it is possible to instantly determine whether the battery is a primary battery or a secondary battery without measuring the discharge characteristics of the battery for a certain period of time. Can be prevented from being supplied. Furthermore, of course, even when there are a plurality of batteries to be discriminated, a battery detection terminal is provided for each battery, and the battery detection terminal is brought into contact with the periphery of the positive electrode terminal of each battery. By doing so, it is possible to realize a battery discrimination process.

[This embodiment]
[1. Constitution]
Next, the configuration of the battery discrimination device according to the present embodiment will be described in detail below with reference to FIGS. In addition, in this embodiment, the peripheral part (shoulder part) of the positive terminal of the primary battery is conductive, and the peripheral part of the positive terminal of the secondary battery is not conductive. Attention is paid to a battery mounting part such as a battery box in which a battery is mounted, and a battery detection terminal that is in contact with the peripheral part of the mounted positive terminal is provided.

[1.1. Battery mounting part]
As shown in FIG. 1, the battery mounting portion 10 is a portion where a battery is mounted during charging / discharging or the like. Further, a battery detection terminal 3 for detecting a voltage is disposed at a position where the battery contacts the periphery of the positive electrode terminal when the battery is mounted.

  Unlike the primary battery, the secondary battery does not have electrical conductivity because the periphery of the positive electrode terminal is covered with a gasket (or packing) or the like. Therefore, paying attention to the continuity of the primary battery and the non-conductivity of the secondary battery in the periphery of the positive terminal, as shown in FIGS. 1 and 2, the battery mounting portion 10 is contacted with the periphery of the positive terminal of the battery. A battery detection terminal 3 is disposed so as to be in contact. In the present embodiment, as will be described later, the voltage can be detected from the battery detection terminal 3 and the negative electrode 2 in addition to detecting the voltage between both electrodes of the battery.

  In addition, the battery detection terminal 3 is not limited to the U-shaped shape as shown in FIGS. 1 and 2, and includes any shape as long as it is in contact with the peripheral portion of the positive electrode terminal of the battery.

[1.2. Circuit configuration of battery discrimination device]
Next, an example of the circuit configuration of the battery discrimination device according to the present embodiment will be described below with reference to FIG.

  As shown in FIG. 3, the battery discrimination device according to the present embodiment includes a DC jack portion 11 to which a charger 20 is connected in addition to the battery mounting portion 10 including the positive electrode 1, the negative electrode 2, and the battery detection terminal 3 described above. And a charging switch 12 for turning on / off charging, and an arithmetic device 14 for taking in the voltage of the battery mounted in the battery mounting unit 10 via the AD converters 13a and 13b. In addition, the battery discrimination device includes a stabilized power source 15 that generates a power source for the arithmetic device 14, a load circuit 16 that consumes power, and a power switch 17 that turns ON / OFF the power supplied to the load circuit 16. I have.

  The DC jack unit 11 has a switch function, and a DC voltage is supplied from the charger 20 when the charger 20 is connected. The charge switch 12 is composed of, for example, a MOSFET relay, and turns on / off the charge voltage supplied via the DC jack unit 11.

  The A / D converter 13a A / D converts the voltage from the plus electrode 1 and the minus electrode 2, and the A / D converter 13b A / D converts the voltage from the battery detection terminal 3 and the minus electrode 2.

  As shown in FIG. 4, the arithmetic device 14 includes a charge recognition unit 14 a that recognizes the connection of the charger 20 through the DC jack unit 11, a charge switch control unit 14 b that controls ON / OFF of the charge switch 12, A battery determination unit 14c that compares voltage data from each of the D converters 13a and 13b and determines whether the battery is a primary battery or a secondary battery is provided. Further, the arithmetic device 14 includes a time determination unit 14d that determines whether the time for which the battery determination process is performed exceeds a predetermined time, a load power supply control unit 14e that controls a voltage supplied to the load circuit 16, a power supply And a power switch control unit 14f for controlling ON / OFF of the switch 17.

  The stabilized power supply 15 creates a DC power supply to be supplied to the arithmetic device 14. In the present embodiment, the stabilized power source 15 is not limited to a constant voltage power source that keeps the voltage constant or a constant current power source that keeps the current constant, but includes both cases. Further, the stabilization method is not particularly limited. The load circuit 16 is a circuit that consumes the electric power from the charger 20 or the electric power from the battery attached to the battery attachment unit 10 via the power switch 17.

[2. Effect]
Next, the battery discrimination processing procedure of the battery discrimination device based on the above configuration according to the present embodiment will be described below with reference to the flowchart of FIG. It is assumed that a battery is mounted on the battery mounting unit 10.

  First, when the charger 20 is connected to the DC jack unit 11, power is supplied to the computing device 14, and the built-in charger detection terminal is pulled up by the switch function of the DC jack unit 11, whereby the computing device 14. The charge recognition unit 14a recognizes that the charger 20 is connected (STEP 501). Here, the charging switch control unit 14b of the arithmetic device 14 controls the charging switch 12 to be turned on (STEP 502).

  When the charging switch 12 is turned on, regardless of whether the battery mounted in the battery mounting unit 10 is a primary battery or a secondary battery, a charging voltage is once supplied to the battery, and the voltage A between the positive electrode 1 and the negative electrode 2 (Voltage data A after A / D conversion) is taken into the A / D converter 13a (STEP 503). The A / D converter 13b takes in the voltage B between the battery detection terminal 3 and the negative electrode 2 (voltage data B after A / D conversion) (STEP 504).

  Then, each voltage data A / D converted by the A / D converters 13a and 13b is taken into the arithmetic device 14, and the battery determination unit 14c of the arithmetic device 14 determines whether the primary battery or the secondary battery is based on the voltage data. The battery is determined (STEP 505). Specifically, the battery determination unit 14c determines whether or not the voltage data A and the voltage data B taken into the arithmetic device 14 are equal. If they are equal (YES in STEP 505), the battery determination unit 14c determines that they are primary batteries and is not equal. In the case (NO in STEP 505), the battery is determined to be a secondary battery.

  If the battery determination unit 14c determines that the battery is a primary battery (YES in STEP 505), the charging switch control unit 14b of the arithmetic device 14 controls the charging switch 12 to be turned off (STEP 506). That is, the charging voltage supplied to the battery is stopped by turning off the charging switch 12 via the charging switch control unit 14b.

  The charging voltage is supplied to the primary battery until the charging switch 12 is turned off in STEP 506, but the process by the battery determination unit 14c only determines whether the voltage data A and the voltage data B are equal, that is, battery detection. It only determines the value of the voltage data based on the continuity / non-conductivity of the terminal 3. For this reason, the processing from STEP 501 to STEP 506 is instantaneously performed as a whole. Therefore, even if a charging voltage is applied to the primary battery, the battery specification is not affected.

  On the other hand, when the battery determination unit 14c determines that the battery is a secondary battery (NO in STEP 505), the charging voltage is continuously supplied while the charging switch 12 is not turned on (STEP 507).

  And while the connection of the charger 20 is continuously recognized by the charge recognition unit 14a, such a battery determination process is performed at regular intervals. Specifically, the time determination unit 14d of the arithmetic device 14 determines whether the battery determination processing time exceeds a predetermined time (STEP 508). If the predetermined time is exceeded, the processing from STEP 503 to 507 is repeated. It is. In the flowchart of FIG. 5, as an example, a predetermined time during which the battery determination process is performed, that is, a certain interval at which the determination process is repeated is 1 second.

  Here, in STEP 508, when the time determination unit 14d of the arithmetic device 14 determines that the battery determination processing time exceeds a predetermined time, the charging recognition unit 14a of the arithmetic device 14 is connected to the charger 20. (STEP 509). When it is determined by the charge recognition unit 14a that the charger 20 is connected (YES in STEP 509), the processing after STEP 503 is repeated as shown in FIG.

  On the other hand, when it is determined by the charge recognition unit 14a that the charger 20 is not connected (NO in STEP 509), the charger detection terminal of the DC jack unit 11 becomes 0V, and the charge switch of the arithmetic device 14 When the control unit 14b turns off the charging switch 12 (STEP 510), the battery determination process ends. In addition, when there are a plurality of batteries to be mounted on the battery mounting portion 10, a battery detection terminal 3 is provided for each battery, and the battery detection terminal 3 is brought into contact with the peripheral portion of the positive electrode 1 of each battery. It is possible to realize a discrimination process similar to the flowchart of FIG.

  According to the present embodiment as described above, even when the primary battery and the secondary battery having the same shape are used, the battery detection terminal 3 is provided in the battery mounting portion 10 to provide the battery detection terminal 3 and Based on the voltage obtained from the negative electrode 2, it is possible to determine whether the battery is a primary battery or a secondary battery. Therefore, even if a secondary battery having the same shape as that of the primary battery is used, it can be determined as a secondary battery, so that a charging voltage can be appropriately supplied to the determined secondary battery.

  Further, in the present embodiment, it is possible to instantaneously determine whether the battery is a primary battery or a secondary battery without measuring the discharge characteristics of the battery for a certain period of time, so that the primary battery is mounted on the battery mounting portion 10. Even if it is a case, it can prevent supplying a charging voltage to the said primary battery accidentally.

  Furthermore, in this embodiment, the battery detection terminal 3 is provided for each battery, not only when there is a single battery to be discriminated, but also at the periphery of the positive electrode terminal of each battery. By bringing the battery detection terminals 3 into contact with each other, it is possible to realize battery discrimination processing.

[Other Embodiments]
(A) The present invention is not limited to the embodiment in which the voltage data A and the voltage data B as described above are compared to determine whether the battery is a primary battery or a secondary battery. Embodiment which discriminate | determines whether the battery with which the part was mounted | worn is a primary battery or a secondary battery is included.

  Specifically, a continuity determination unit that determines the type of the battery based on whether or not the battery detection terminal is conductive is provided in the arithmetic device 14, and the continuity determination unit determines whether the continuity determination unit is based on the voltage B between the battery detection terminal and the negative electrode. Then, it is determined whether or not the battery detection terminal is conducted via the A / D converter 13b. When it is determined that the voltage B is OV, that is, when it is determined that the battery B is not conductive, it is determined that the battery mounted on the battery mounting unit is a secondary battery, and when the voltage B is determined to exceed 0 V. That is, if it is determined that the battery is conductive, it is determined that the attached battery is a primary battery.

  This is shown in the flowchart in FIG. In STEP 603, the arithmetic device 14 does not take in the voltage A between the two electrodes of the battery, but takes in only the voltage B between the battery detection terminal 3 and the negative electrode 2. In STEP 604, the continuity determination unit of the arithmetic device 14 determines whether the battery detection terminal 3 is conductive based on the voltage data B. As described above, the battery is determined to be a primary battery when it is determined to be conductive by the continuity determination unit, and is determined to be a secondary battery when it is determined that it is not conductive, and the subsequent processing is the same as the flowchart of FIG. (STEP 506-510).

(B) The present invention is not limited to the embodiment using the A / D converter that performs A / D conversion as described above, but also includes an embodiment that uses, for example, an LED instead of the A / D converter. . That is, by taking in the LED the voltage B between the battery detection terminal 3 and the negative electrode 2, in the case of a primary battery, the battery detection terminal 3 conducts and emits light. In the case of a secondary battery, the battery detection terminal 3 Embodiments that do not emit light due to non-conduction also encompass the present invention.

  In the present invention, when the battery detection terminal 3 becomes conductive by providing a sound output device that performs sound output instead of the LED and taking in the voltage B into the sound output device, for example, “the battery is a primary battery” For example, when the detection terminal is not conductive, an embodiment in which a voice is output as “secondary battery” is also included.

(C) The present invention is not limited to the embodiment in which the charging circuit as described above is connected, and is based on the voltage from the battery mounted on the battery mounting unit 10 even without the charging circuit. Embodiments for discriminating between primary batteries and secondary batteries are also included. That is, according to the present invention, in the flowchart of FIG. 5, the processing of STEPs 501 and 502 is omitted, and directly based on the voltage from the positive electrode 1 and the negative electrode 2 and the voltage from the battery detection terminal 3 and the negative electrode 2. And an embodiment for performing battery discrimination processing. In the flowchart of FIG. 6, the processing of STEPs 601 and 602 is omitted, and the battery is determined based on the voltage between the battery detection terminal 3 and the negative electrode 2 directly.

(D) The present invention is not limited to the embodiment provided with the load circuit 16 in the circuit of the battery discrimination device as shown in FIG.

The block diagram of the battery mounting part which concerns on embodiment of this invention. The lineblock diagram of the battery detection terminal concerning the embodiment of the present invention (figure from the positive electrode side). 1 is a block circuit diagram of a battery discrimination device according to an embodiment of the present invention. The block diagram of the arithmetic unit of the battery discrimination device which concerns on embodiment of this invention. The flowchart which shows the battery discrimination | determination processing example which concerns on embodiment of this invention. The flowchart which shows the battery discrimination | determination processing example which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Positive electrode 2 ... Negative electrode 3 ... Battery detection terminal 10 ... Battery mounting part 11 ... DC jack part 12 ... Charge switch 14 ... Operation apparatus 14a ... Charge recognition part 14b ... Charge switch control part 14c ... Battery determination part 14d ... Time Determination unit 14e ... Load power supply control unit 14f ... Power switch control unit 15 ... Stabilized power supply 16 ... Load circuit 17 ... Power switch 20 ... Charger

Claims (10)

In the battery discrimination device for discriminating whether the battery is a primary battery having a conductive member in the peripheral part of the positive electrode terminal or a secondary battery having a non-conductive member in the peripheral part of the positive electrode terminal from the voltage of the battery.
Provide a battery detection terminal that contacts the periphery of the positive terminal,
And a discriminating means for discriminating whether the battery is a primary battery or a secondary battery based on a voltage between both electrodes of the battery and a voltage between the battery detection terminal and the negative electrode terminal. Battery discrimination device.   The discriminating means discriminates the battery as a primary battery when the voltage between the two electrodes of the battery and the voltage between the battery detection terminal and the negative electrode terminal coincide with each other, and when the voltage does not coincide, The battery discrimination device according to claim 1, wherein A charging power source for applying a charging voltage between both electrodes of the battery;
Charging control means for controlling the charging voltage,
3. The battery discrimination device according to claim 1, wherein the charge control unit stops charging voltage to the battery when the discrimination unit determines that the battery is a primary battery. 4. In the battery discrimination device for discriminating whether the battery is a primary battery having a conductive member in the peripheral part of the positive electrode terminal or a secondary battery having a non-conductive member in the peripheral part of the positive electrode terminal from the voltage of the battery.
Provide a battery detection terminal that contacts the periphery of the positive terminal,
A battery discriminating apparatus comprising: a continuity determining unit that determines that the battery is a primary battery when the battery detection terminal is conductive and determines that the battery is a secondary battery when the battery detection terminal is not conductive.   The battery determination device according to claim 4, wherein the conduction determination unit determines whether the battery detection terminal is conductive based on a voltage between the battery detection terminal and the negative electrode terminal. A battery discriminating apparatus in which a computer discriminates whether a battery is a primary battery having a conductive member around a positive electrode terminal or a secondary battery having a non-conductive member around a positive electrode terminal based on the voltage of the battery. In the control method,
Provide a battery detection terminal that contacts the periphery of the positive terminal,
The computer
A determination step is performed for determining whether the battery is a primary battery or a secondary battery based on a voltage between both electrodes of the battery and a voltage between the battery detection terminal and the negative electrode terminal. Control method of battery discrimination device.   The determining step determines that the battery is a primary battery when the voltage between both electrodes of the battery matches the voltage between the battery detection terminal and the negative electrode terminal, and determines that the battery is a secondary battery when they do not match. The control method of the battery discriminating apparatus according to claim 6, wherein: A charging power source that applies a charging voltage between both electrodes of the battery,
The computer
The method for controlling a battery discrimination device according to claim 6 or 7, wherein when the discrimination step determines that the battery is a primary battery, the charging voltage to the battery is stopped. A battery discriminating apparatus in which a computer discriminates whether a battery is a primary battery having a conductive member around a positive electrode terminal or a secondary battery having a non-conductive member around a positive electrode terminal based on the voltage of the battery. In the control method,
Provide a battery detection terminal that contacts the periphery of the positive terminal,
The computer
A battery determination device that performs a continuity determination step that determines that the battery is a primary battery when the battery detection terminal is conductive and determines that the battery is a secondary battery when the battery detection terminal is not conductive. Control method.   The control method of the battery discrimination device according to claim 9, wherein the continuity determination step determines whether the battery detection terminal is conductive based on a voltage between the battery detection terminal and the negative electrode terminal.

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