Battery holder device and device module

Abstract

To provide a battery holder device and a device module that are capable of easily removing a lithium chloride film with a simple circuit configuration.SOLUTION: A battery holder device 12 comprises a battery holder 21 and a discharge circuit 24. The battery holder 21 accepts a battery 17 and comprises a positive electrode contact part 31 and a negative electrode contact part 32. According to the battery holder 21, the positive electrode contact part 31 and the negative electrode contact part 32 are connected to an operation object circuit device 14 to be operated by the battery 17. A discharge circuit 24 comprises a discharge resistance 22 that discharges the battery 17 loaded into the discharge circuit 24 to flow a discharge current, and a fuse connected to the discharge resistance 22 in series, with the discharge circuit 24 connected between the positive electrode contact part 31 and the negative electrode contact part 32. The fuse is melted in a case where a discharge current determined by the discharge resistance 22 flows for a predetermined time when an output voltage of the battery 17 is substantially a standard voltage.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a battery holder device and device module. [Background technology]

[0002] Lithium thionyl chloride batteries are not prone to natural discharge, and therefore can be stored for long periods of time, for example, for over 20 years, making them an advantageous battery with a long life. The reason they are not prone to natural discharge is that lithium chloride, which is in a passive state, is formed on the surface of the lithium negative electrode, and this forms a film called a lithium chloride film.

[0003] On the other hand, the lithium chloride membrane causes a drop in output voltage due to an increase in internal resistance when the battery is first used (started) after long-term storage. As a result, depending on the specifications of the device (equipment) to be operated by the lithium thionyl chloride battery, the device may not be able to reach the startup voltage and may not operate.

[0004] This lithium chloride film can be removed by passing a certain amount of current through it, so a known countermeasure is to pass a current of, for example, about 100 mA through the battery for a few seconds before loading it into the loading location. In this case, a discharging device with a dummy resistor connected to the battery holder is used, and the output voltage of the lithium thionyl chloride battery loaded into the battery holder is measured with a tester while the battery is discharged.

[0005] Patent Document 1 also describes a battery-driven wireless transmitter that is driven by a battery such as a lithium thionyl chloride battery, as a device for removing the lithium chloride film by passing a certain amount of current as described above. This wireless transmitter includes a means for passing a dummy current through the battery when the power is turned on, as well as a voltage detector and a control circuit. The voltage detector detects the voltage value of the battery when the dummy current flows out. The control circuit passes the dummy current and does not allow the wireless transmitter of the main body to perform actual operation until the voltage detector detects the normal voltage value of the battery. Patent Document 1 also describes a wireless transmitter that includes a discharge circuit that constantly discharges the battery with a minute current, and a changeover switch that switches the connection between the discharge circuit and the battery of the wireless transmitter circuit of the main body.

[0006] Patent Document 2 describes a device having a unit that generates signals and stores data using an operating power source. The unit normally uses a DC power supply device that utilizes commercial AC power as its operating power source, but uses a lithium battery when the power supply voltage of the DC power supply device drops. This device has a dummy load with a predetermined resistance value that can be connected to the lithium battery, a timer that measures the usage time of the unit using the DC power supply device, and a control switch that connects the dummy load to the lithium battery and discharges it for a predetermined discharge time when the timer reaches the predetermined usage time.

[0007] Patent Document 3 describes a battery pack including a voltage information acquisition unit and a detection unit, and configured by connecting in parallel a plurality of battery arms, each of which has one or more battery cells and a fuse for preventing damage to the battery cells due to overcurrent connected in series. The voltage information acquisition unit acquires voltage information from each of the plurality of battery arms, and the detection unit detects blowing of the fuse based on the voltage information acquired by the voltage information acquisition unit. The voltage information acquisition unit measures the voltage of each of the one or more battery cells in each of the plurality of battery arms as voltage information, and the detection unit determines that the fuse has blown when a difference of a predetermined value or more occurs between the voltages measured by the voltage information acquisition unit. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 7-015359 [Patent Document 2] JP 2001-197673 A [Patent Document 3] JP 2010-067536 A Summary of the Invention [Problem to be solved by the invention]

[0009] However, the above-mentioned method using a discharging tool requires preparation of the tool and removal of the lithium chloride film using the tool, which makes the work of loading the battery complicated, and requires a certain level of electrical knowledge. The wireless transmitter described in Patent Document 1 requires a voltage detector and a circuit that controls the discharge of the lithium thionyl chloride battery based on the detection result, while the device described in Patent Document 2 requires a timer and a control switch that controls the connection between the lithium thionyl chloride battery and the dummy resistor based on the time measurement result of the timer. Thus, the circuit configuration is complicated. The battery pack described in Patent Document 3 does not remove the lithium chloride film that has been generated.

[0010] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a battery holder device and an equipment module that can easily remove lithium chloride films using a simple circuit configuration. [Means for solving the problem]

[0011] The battery holder device of the present invention comprises a battery holder and a discharge circuit. The battery holder has a lithium thionyl chloride battery loaded therein, and has a positive contact portion connected to the positive terminal of the lithium thionyl chloride battery and a negative contact portion connected to the negative terminal. The positive and negative contact portions of the battery holder are connected to an operation target circuit device operated by the lithium thionyl chloride battery. The discharge circuit has a discharge resistor that discharges the lithium thionyl chloride battery when the lithium thionyl chloride battery is loaded, causing a discharge current to flow, and a fuse connected in series with the discharge resistor, and is connected between the positive and negative contact portions. The fuse melts when a discharge current determined by the discharge resistor flows for a predetermined period of time when the output voltage of the lithium thionyl chloride battery is approximately the rated voltage.

[0012] The battery holder and the discharge circuit are preferably assembled into a unit by being mounted on a circuit board.

[0013] It is preferable to provide a display circuit having a light-emitting element that is illuminated by the current flowing from the lithium thionyl chloride battery through a fuse.

[0014] The display circuit is mounted on the circuit board and formed as a unit with the battery holder and the discharge circuit, and the light emitting element is preferably provided on the board surface of the circuit board on which the battery holder is disposed.

[0015] It is preferable that the light-emitting element is a light-emitting diode, the display circuit is a series circuit in which a light-emitting diode and a current limiting resistor that limits the current flowing through the light-emitting diode are connected in series, and the series circuit is connected in parallel with the discharge resistor.

[0016] The device module of the present invention includes the above-mentioned battery holder device, a circuit board, and an activated circuit device. A battery holder and a discharge circuit are assembled to the circuit board. The activated circuit device is activated by an operating current flowing from a lithium thionyl chloride battery loaded in the battery holder. The activated circuit device includes a radio circuit that receives a predetermined radio signal, and increases the operating current in response to the radio circuit receiving the radio signal. Effect of the Invention

[0017] According to the present invention, the lithium chloride film can be easily removed with a simple circuit configuration. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a schematic cross-sectional view of an equipment module. [Diagram 2] FIG. 2 is a cross-sectional schematic view of an equipment module. [Diagram 3] FIG. 2 is a circuit diagram of the device module. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] 1 and 2 is one embodiment of the present invention, and includes a battery holder device 12, a circuit board 13, and an operating circuit device 14, all of which are housed in a module case 11. A lithium thionyl chloride battery (hereinafter simply referred to as "battery") 17 is loaded into the battery holder device 12 when the equipment module 10 is first used. The operating circuit device 14 is an example of a device that is operated by the battery 17, and is operated by receiving power from the loaded battery 17 via wiring (not shown) or the like provided on the circuit board 13.

[0020] The battery holder device 12 is intended to hold the inserted battery 17 and restore the output voltage of the battery 17 to a standard voltage (nominal voltage, initial voltage) when use begins, and comprises a battery holder 21 and a discharge circuit 24 having a discharge resistor 22 and a fuse 23. The battery holder device 12 is provided with a chip-type light emitting diode (hereinafter referred to as LED) 27, which constitutes a display circuit 28 that displays the operating state of the battery holder device 12. The display circuit 28 can be omitted, but it is preferable to provide it as in this example.

[0021] The battery holder 21 is for loading a battery 17 and holding the loaded battery 17, and is disposed on one board surface (hereinafter referred to as the first board surface) 13A of the circuit board 13. The battery holder 21 has a positive electrode contact portion 31 that connects to the positive electrode terminal 17a of the battery 17, and a negative electrode contact portion 32 that is disposed opposite the positive electrode contact portion 31 and connects to the negative electrode terminal 17b of the battery 17. The positive electrode contact portion 31 and the negative electrode contact portion 32 are connected to the activation target circuit device 14 via wiring provided on the circuit board 13.

[0022] The battery holder 21 has a box-shaped storage section 33 with one side open, and the battery 17 is stored in this storage section 33. The positive electrode contact section 31 and the negative electrode contact section 32 are provided on the inner wall of the storage section 33, and the storage section 33 functions as a support member that supports the positive electrode contact section 31 and the negative electrode contact section 32. The support member is not limited to the storage section 33 formed in a box shape with a bottom, as long as it has a function of supporting the positive electrode contact section 31 and the negative electrode contact section 32. The support member may be, for example, a frame (not shown) formed in a frame shape without a bottom plate, or a pair of support plates provided in an upright position with respect to the circuit board 13 and composed of a plate-shaped first support plate (not shown) that supports the positive electrode contact section 31 and a plate-shaped second support plate (not shown) that supports the negative electrode contact section 32. The storage section 33 also functions as a restricting member that restricts the movement of the battery 17 so as to maintain contact with the positive and negative contact portions 31 and 32 of the stored battery 17, and the aforementioned frame is also preferred as it similarly functions as a restricting member.

[0023] The battery holder 21 used may be one that corresponds to the shape of the battery 17 and the connection type with the positive electrode terminal 17a and the negative electrode unit 17b. The battery holder 21 does not have to directly hold the housing of the battery 17, and may be one in which the battery is placed on the circuit board 13 and a connector from the battery is connected to a connector pin of the circuit board. In this case, the module case 11 also serves as the storage section 33.

[0024] It is preferable that the battery holder 21 and the discharge circuit 24 are assembled as a unit to the circuit board 13, and it is further preferable that the display circuit 28 is also assembled as a unit to the circuit board 13, which is also done in this example. The fuse 23 and the LED 27 are arranged on the first board surface 13A in the same manner as the battery holder 21.

[0025] The discharge circuit 24 is for removing the lithium chloride film formed on the negative electrode of the installed battery 17. When the battery 17 is installed, the discharge circuit 24 discharges the battery 17 via the discharge resistor 22 to pass a discharge current, thereby dissolving the lithium chloride film, and ends the discharge by blowing the fuse 23. The fuse 23 is detachable and can be replaced.

[0026] The LED 27 is for indicating the discharge of the battery 17 and the end of the discharge, i.e., the disconnection of the discharge circuit 24. The display circuit 28 equipped with the LED 27 is connected to the discharge circuit 24, and indicates that the battery 17 is in a discharging state when the LED 27 is lit, and indicates the end of the discharge when the LED is turned off. Details of the discharge circuit 24 and the display circuit 28 will be described later using another drawing.

[0027] In this example, the circuit device 14 to be operated is disposed on the other board surface (hereinafter referred to as the second board surface) 13B of the circuit board 13. The circuit device 14 to be operated is an example of a device to be operated that is operated by an operating current flowing from the battery 17 when the battery 17 is loaded in the battery holder 21. The circuit device 14 to be operated has a wireless circuit 36, a CPU (Central Processing Unit) 37, and a MEMS (Micro Electro Mechanical Systems) sensor 38. The wireless circuit 36 ​​has, for example, an antenna 41 as a power transmitting / receiving member that transmits and receives a predetermined wireless signal, and a wireless circuit section 42 that is electrically connected to the antenna 41 and transmits a signal between the antenna 41 and the CPU 37, and receives the predetermined wireless signal. The antenna 41 and the wireless circuit section 42 may be electrically connected via a wiring provided on the circuit board 13, or may be directly connected without the circuit board 13.

[0028] The CPU 37 is electrically connected to the wireless circuit unit 42 and the MEMS sensor 38, and performs a predetermined process on signals acquired from them. The MEMS sensor 38 is, for example, an inclination sensor, and detects the attitude of the device module 10 as an inclination angle. The CPU 37 operates the MEMS sensor 38 based on, for example, a wireless signal received from an external device via the wireless circuit 36, and transmits the detection result acquired from the MEMS sensor 38 to the external device via the wireless circuit 36. The CPU 37 operates in response to the wireless signal received by the wireless circuit 36, thereby increasing the operating current from the battery 17 flowing through the CPU 37 itself and the MEMS sensor 38. That is, in this example, the CPU 37 and the MEMS sensor 38 function as an operating current increasing circuit. The MEMS sensor 38 is not limited to this example, and may be any of various known types, such as a temperature sensor that detects temperature, or an ultrasonic distance sensor that transmits and receives ultrasonic waves to detect distance and the presence or absence of an object.

[0029] As described above, the equipment module 10 is packaged by housing the battery holder device 12, the circuit board 13, and the activated circuit device 14 in the module case 11. The battery holder 21, the fuse 23, and the LED 27 are arranged on the first board surface 13A, and the activated circuit device 14 is arranged on the second board surface 13B, making the equipment module 10 an extremely small module.

[0030] The module case 11 has a case body 11a and a lid 11b, and the circuit board 13 is disposed in the case body 11a by a support member 13a that supports the circuit board 13. The circuit board 13 is housed in a position in which the first board surface 13A faces the opening side that is opened and closed by the lid 11b of the case body 11a, so that the battery 17 can be loaded and removed, the fuse 23 can be replaced, and the LED 27 can be turned on and off visually.

[0031] The module case is not limited to this example, and may be any case capable of housing the battery holder device 12, the circuit board 13, and the activated circuit device 14, with the shape and size being appropriately determined according to the scene of use, the location of installation, etc. For example, if the device module 10 is a kerosene remaining amount detection module that is provided in a kerosene tank and detects and notifies the remaining amount of kerosene, the tank cap that opens and closes the kerosene refill port of the kerosene tank may be the module case.

[0032] The circuit configuration of the device module 10 will be described with reference to FIG. 3. FIG. 3 shows a state in which a battery 17 is loaded in the battery holder 21. The activation target circuit device 14 is connected between the positive electrode contact portion 31 and the negative electrode contact portion 32. Specifically, a diode 51 is connected between the positive electrode contact portion 31 and the activation target circuit device 14. The diode 51 is connected with its anode facing the positive electrode contact portion 31. The diode 51 protects the activation target circuit device 14 when the battery 17 is loaded in the reverse direction. A plurality of battery holders 21 may be provided so that a plurality of batteries 17 are connected in parallel. The battery 17 is a primary battery and cannot be charged. Therefore, when a plurality of batteries 17 are connected in parallel, the diode 51 is provided between the positive electrode contact portion 31 of each of the plurality of battery holders 21 and the activation circuit device 14. This reliably prevents charging between the batteries 17 when there is a potential difference between the batteries 17.

[0033] The discharge circuit 24 and the display circuit 28 constitute an initialization section 55, which initializes the output voltage of the battery 17 and indicates that the initialization has been completed by turning on and off the LED 27. The discharge circuit 24 dissolves the lithium chloride film formed on the negative electrode of the battery 17, thereby initializing the output voltage of the battery 17 by restoring it to the rated voltage or close to the rated voltage. The discharge circuit 24 has a discharge resistor 22 and a fuse 23 connected in series, and is connected between the positive electrode contact section 31 and the negative electrode contact section 32. One end of the fuse 23 is connected to a connection point P1 between the positive electrode contact section 31 and the circuit device to be operated, and is connected to the positive electrode contact section 31. The other end of the fuse 23 is connected to one end of the discharge resistor 22. The other end of the discharge resistor 22 is grounded and connected to the negative electrode contact section 32. As a result, when the battery 17 is loaded, the discharge resistor 22 discharges the battery 17 and causes a discharge current to flow. The current flowing through the fuse 23 is determined by the discharge resistor 22 .

[0034] The fuse 23 melts when a discharge current determined by the discharge resistor 22 flows for a specified time when the output voltage of the battery 17 is approximately the rated voltage. As a result, when the battery 17 is inserted and discharge begins, and a certain amount of time has passed, the fuse 23 melts and disconnects the discharge circuit 24, so that the discharge current from the battery 17 to the discharge circuit 24 stops flowing.

[0035] In this example, the rated voltage of the battery 17 is 3.6V, a discharge resistor 22 with a resistance value of 6.8Ω is used, and a fuse 23 that melts in about 5 seconds is used. However, the above-mentioned predetermined time until the fuse 23 melts is not limited to this example. That is, since the discharge circuit 24 is for dissolving the lithium chloride film and restoring the output voltage of the battery 17 to the rated voltage or close to the rated voltage, it is preferable to select a fuse 23 that does not melt until the output voltage of the battery 17 has recovered, but melts after the output voltage has recovered.

[0036] Strictly speaking, the discharge current flowing through fuse 23 is the sum of the current flowing through initialization unit 55, i.e., the current flowing through discharge circuit 24 and display circuit 28. The current flowing through display circuit 28 in this example using LED 27 is much smaller than the current flowing through discharge resistor 22, so this example is described as having almost no effect on melting fuse 23. If the current flowing through display circuit 28 is large, fuse 23 is selected taking that current into consideration.

[0037] The display circuit 28 has the LED 27 connected in series and a current limiting resistor 58 that limits (specifies) the forward current flowing through the LED 27. The series circuit of the LED 27 and the current limiting resistor 58 is connected in parallel to the discharge resistor 22. One end of the current limiting resistor 58 is connected to a connection point P2 between the discharge resistor 22 and the fuse 23, and is connected to the positive electrode contact portion 31 via the fuse 23. The other end of the current limiting resistor 58 is connected to the anode of the LED 27. The cathode of the LED 27 is grounded and connected to the negative electrode contact portion 32. As a result, the LED 27 lights up while the battery 17 is loaded and a current flows through the discharge circuit 24, and the LED 27 goes out when the fuse 23 melts and the discharge circuit 24 is disconnected. The LED 27 only needs to light up before the fuse 23 blows, and may light up when the battery 17 is loaded or when some time has passed since the battery 17 was loaded.

[0038] The LED 27 is an example of a light-emitting element that indicates the discharge and end of discharge of the battery 17. Since any light-emitting element that emits visible light has a display function for visual confirmation, the light-emitting element is not limited to the LED 27, and the LED 27 may be, for example, an organic EL (electro-luminescence) element, a light bulb, or the like.

[0039] The operation of the above configuration will be described. In the device module 10, the battery 17 is loaded into the battery holder 21 of the case body 11a when the lid 11b of the module case 11 is opened. The battery 17 is loaded so that the positive terminal 17a contacts the positive contact portion 31 and the negative terminal 17b contacts the negative contact portion 32. When no passive lithium chloride is formed on the lithium of the negative electrode of the loaded battery 17, or when only a very small amount is formed, the battery 17 activates the operation target circuit device 14 connected between the positive contact portion 31 and the negative contact portion 32. On the other hand, when a lithium chloride film is formed on the battery 17, the voltage becomes lower than the rated voltage due to an increase in internal resistance.

[0040] The discharge circuit 24 discharges the battery 17 when the battery 17 is loaded, and flows a current determined by the discharge resistor 22 as a discharge current, dissolving the lithium chloride film formed on the negative electrode of the battery 17. In this way, according to the above configuration, the lithium chloride film is removed with a simple circuit configuration, and the output voltage of the battery 17 is restored to the rated voltage or close to the rated voltage and initialized. Since the lithium chloride film is removed when the battery 17 is loaded, the lithium chloride film can be easily removed on the spot without using equipment such as a tester, and even an operator without special electrical knowledge can easily remove the lithium chloride film by simply loading the battery 17, and the output voltage of the battery 17 can be restored. Therefore, the more batteries 17 that need to be loaded, the more efficient the work becomes.

[0041] The fuse 23 melts when the discharge current determined by the discharge resistor 22 flows for a predetermined time when the output voltage of the battery 17 is approximately the standard voltage, and melts after the lithium chloride film has dissolved and been removed after a certain time has elapsed since the start of discharging of the battery 17, disconnecting the discharge circuit 24. The fuse 23 melts when the discharge current determined by the discharge resistor 22 flows for a predetermined time when the output voltage of the battery 17 is approximately the standard voltage, and therefore the lithium chloride film is reliably dissolved before it is cut off. Therefore, the lithium chloride film is reliably removed simply by loading the battery 17, and therefore the worker loading the battery 17 does not need to have any particular electrical knowledge. In addition, the discharge circuit 24 is disconnected when the battery 17 removes the lithium chloride film and initializes the output voltage, so that the subsequent discharge of the battery 17 is suppressed, and the shortening of the life of the battery 17 is suppressed.

[0042] When the battery 17 is loaded into the battery holder 21, the display circuit 28 causes a discharge current to flow through the fuse 23 of the discharge circuit 24, and the LED 27 lights up. This indicates that the dissolution of the lithium chloride film in the battery 17 is progressing, and can be visually confirmed. Therefore, the operator can confirm that the removal of the lithium chloride film is progressing, that is, the recovery process of the output voltage, immediately after loading the battery 17. Also, in the unlikely event that the provided fuse 23 is blown, the LED 27 will not light up even when the battery 17 is loaded into the battery holder 21, so it can be understood that a different fuse 23 should be replaced, and the lithium chloride film can be reliably removed by providing a new fuse 23. In this way, it is easy to know that there is some kind of abnormality when the LED 27 does not light up.

[0043] Also, when the fuse 23 is blown, the LED 27 is turned off. This indicates that the lithium chloride film has been removed, i.e., the battery 17 has been initialized, and can be visually confirmed. Therefore, the operator can confirm that the lithium chloride film has been removed, i.e., that the output voltage has been restored, immediately after loading the battery 17. Furthermore, with the above configuration, if the fuse 23 does not blow properly, the current continues to flow through the discharge resistor 22, causing the battery 17 to enter a continuous discharge state, and the operation target circuit device 14 that requires this power source cannot be started. That is, if the fuse 23 does not blow, the LED 27 does not turn off, and an abnormality is detected. In this way, if the fuse 23 does not blow due to some abnormality, the LED 27 does not turn off and remains lit, making it easy to detect an abnormality. Since the LED 27 is intended to indicate that the output voltage of the battery 17 has been initialized by the discharge circuit 24, the current limiting resistor 58 has a resistance value that lights up the LED 27 to a sufficient brightness that can be easily confirmed visually, and the fuse 23 does not melt for a sufficient period of time that allows the lighting of the LED 27 to be confirmed visually.

[0044] The LED 27 is arranged on the first board surface 13A, just like the battery holder 21 in which the battery 17 is loaded, making it easy to check whether the LED 27 is on or off when the battery 17 is loaded. The fuse 23 is also arranged on the first board surface 13A, making it easy to replace the fuse 23; when replacing the battery 17, for example, it is easy to remove the blown fuse and install a new fuse 23 before loading a new battery 17.

[0045] After the LED 27 is turned off, the lid 11b of the module case 11 is closed, and the activated circuit device 14 is used. When the wireless circuit 36 ​​receives a predetermined wireless signal, the CPU 37 responds by temporarily increasing the operating current from the battery 17 that flows through the CPU 37 itself and the MEMS sensor 38, for example to a predetermined level. As a result, when the wireless signal is received, if lithium chloride is generated in the battery 17, the lithium chloride is dissolved. Therefore, by making the activated circuit device 14 receive a wireless signal at a certain frequency, for example once a week, the generated lithium chloride is dissolved, and the decrease in the output voltage of the battery 17 is suppressed. [Explanation of symbols]

[0046] 10 Equipment Module 12 Battery holder device 13 Circuit Board 14 Operated circuit device 17 Lithium thionyl chloride battery 17a Positive terminal 17b Negative terminal 21 Battery holder 23. Fuse 24 Discharge circuit 27 LED 28 Display circuit 31 Positive electrode contact part 32 Negative electrode contact part 36 Radio circuit 37 CPU 38 MEMS 41 Antenna 42 Wireless unit 56 Discharge resistor 58 Current limiting resistor 60 Initialization section

Claims

1. a battery holder in which a lithium thionyl chloride battery is loaded, the battery holder having a positive contact portion connected to a positive terminal of the lithium thionyl chloride battery and a negative contact portion connected to a negative terminal of the lithium thionyl chloride battery, the positive contact portion and the negative contact portion being connected to a target circuit device operated by the lithium thionyl chloride battery; a discharge circuit including a discharge resistor for discharging the thionyl chloride lithium battery to cause a discharge current to flow when the thionyl chloride lithium battery is loaded, and a fuse connected in series with the discharge resistor and melting when the discharge current determined by the discharge resistor flows for a predetermined period of time when the output voltage of the thionyl chloride lithium battery is approximately the rated voltage, the discharge circuit being connected between the positive electrode contact portion and the negative electrode contact portion; A battery holder device comprising:

2. 2. The battery holder device according to claim 1, wherein the battery holder and the discharge circuit are assembled into a unit by being attached to a circuit board.

3. 3. The battery holder device according to claim 1, further comprising an indicator circuit having a light-emitting element that is turned on by a current flowing from said lithium thionyl chloride battery through said fuse.

4. the display circuit is mounted on the circuit board and is unitized with the battery holder and the discharge circuit, 4. The battery holder device according to claim 3, wherein the light emitting element is provided on a board surface of the circuit board on which the battery holder is disposed.

5. the light emitting element is a light emitting diode, the display circuit is a series circuit in which the light emitting diode and a current limiting resistor that limits a current flowing through the light emitting diode are connected in series; 5. The battery holder device according to claim 3, wherein the series circuit is connected in parallel with the discharge resistor.

6. A battery holder device according to any one of claims 1 to 5, a circuit board on which the battery holder and the discharge circuit are assembled; an operating circuit device that operates by receiving an operating current from the lithium thionyl chloride battery mounted in the battery holder; Equipped with The operation target circuit device is A radio circuit for receiving a predetermined radio signal; an operating current increasing circuit that increases the operating current in response to the radio circuit receiving the radio signal; An apparatus module having:

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