JPH0534574U - Small electronic device with voltage measurement function - Google Patents

Abstract

(57) [Summary] [Purpose] It is not necessary to connect the measurement terminal each time of measurement,
(EN) Provided is a small electronic device with a voltage measuring function that does not interfere with the measurement terminal or lose the measurement terminal when carrying. [Structure] A main body case 1 is provided with a positive electrode measuring terminal 7, and a cover body 8 is attached to the main body case 1 so as to cover the positive electrode measuring terminal 7 and openably and closably. Measuring terminal 9 for the connected negative electrode
And the lid 8 is opened from the body case 1 to expose the measurement terminal 7 for the positive electrode on the side of the body case 1 and the measurement terminal 9 for the negative electrode on the side of the lid 8, respectively. By arranging a battery between the measuring terminals 7 and 9 and connecting both electrodes of the battery to the first and second measuring terminals 7 and 9, the voltage such as the remaining amount of the battery is measured, and the cord 11 is used when not in use. Is stored in the main body case 1 and the lid 8 is closed on the main body case 1 for carrying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a small electronic device with a voltage measuring function.

[0002]

[Prior Art]

 Conventionally, some small electronic devices such as calculators have a voltage measuring function for measuring the remaining battery level. In such a small electronic device, a measuring terminal for the positive electrode and a measuring terminal for the negative electrode are provided at each tip of the two cords connected to the main body case, and the battery is arranged between these measuring terminals. By connecting both electrodes of the battery and each measurement terminal, the remaining amount of the battery is measured and the measurement result is displayed on the display part of the main body case.

[0003]

[Problems to be solved by the device]

 However, with this small electronic device, each measurement terminal must be connected to the main body case each time the battery level is measured, and if the measurement terminal is connected to the main body case, it will be an obstacle when carrying it. Therefore, there is a problem that the measurement terminal may be lost if it is removed. The present invention has been made in view of the above circumstances, and its purpose is to eliminate the need to connect the measurement terminal each time the measurement is performed, and the measurement terminal becomes an obstacle when carrying it or the measurement terminal is lost. The aim is to provide a compact electronic device with a voltage measurement function that does not do so.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is provided with a main body case provided with a first measurement terminal, and is attached to the main body case so as to be openable and closable and electrically connected to the main body case. And a lid provided with the second measured terminal.

[0005]

[Action]

 According to this invention, when the lid is opened from the body case, the first measurement terminal is exposed on the body case side and the second measurement terminal is exposed on the lid side. You can measure the voltage, such as the remaining battery level, by connecting both electrodes of the battery to the first and second measurement terminals. By closing the, the measuring terminals will not get in the way while being carried, and the measuring terminals will not be lost.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 3, reference numeral 1 denotes a main body case of a small electronic device such as a calculator. The main body case 1 is formed in a thin box shape, and a display section 2 including a liquid crystal display device and a key input section 3 such as a ten-key pad are provided on the upper surface of the main body case 1. The lid mounting portion 4 is provided as shown in FIG. The lid mounting portion 4 is formed lower than the upper surface on the left side as shown in FIG. The lid mounting portion 4 is provided with a cord storage recess 5 except for the upper right corner, and the lid mounting portion 4 is provided with an electrode insertion hole 6 in the upper right corner. As shown in FIG. 2, the electrode insertion hole 6 is formed in a shape in which elongated cutouts 6b are provided in the upper and lower portions of a circular portion 6a. Below the electrode insertion hole 6, a measuring terminal 7 for the positive electrode is arranged. ing. This measuring terminal 7 is a plate bar made of a metal plate, and as shown in FIG. 3, one end thereof is located below the electrode insertion hole 6 and the other end is bent obliquely downward, and the cord receiving recess is formed. It is attached to the lower surface of 5. The other end of the measuring terminal 7 is electrically connected to a circuit board (not shown) in the main body case 1.

A lid 8 is arranged on the upper surface of the lid mounting portion 4 as shown in FIG. Inside the lid body 8, as shown in FIG. 3, a measuring terminal 9 for the negative electrode is provided. The measuring terminal 9 is made of an elongated metal plate, and its tip portion is bent and formed in a V shape, and the tip portion is provided so as to project outside from a terminal insertion hole 10 provided on the back surface of the lid body 8. There is. One end of a cord 11 is connected to the other end of the measuring terminal 9. The other end of the cord 11 is guided to the main body case 1 side from the cord hole 12 of the lid body 8 and connected to the circuit board in the main body case 1 through the lower opening 13 of the cord housing recess 5. Further, in the vicinity of the terminal insertion hole 10 on the back surface of the lid body 8 and in the vicinity of the code hole 12 located on the opposite side to the terminal insertion hole 10, the edge portions 13a of the openings 13, 14 provided in the upper and lower portions of the cord storage recess 5 are provided. , 14a are provided with engaging hooks 15 that are releasably engaged with each other.

In such a small electronic device, as shown in FIG. 2, when the lid body 8 is removed from the lid mounting portion 4 of the main body case 1, the positive electrode measuring terminal 7 and the negative electrode measuring terminal 9 are respectively separated. The battery is placed between these measuring terminals 7 and 9 and both electrodes of the battery are connected to the first and second measuring terminals 7 and 9 to measure the remaining amount of the battery. The measurement result can be displayed on the display unit 2 of the main body case 1. At this time, the measurement terminal 7 for the positive electrode is exposed on the front surface side of the main body case 1. Therefore, the main body case 1 is placed on a table, and the positive electrode of the battery is brought into contact with the measurement terminal 7 for the positive electrode on the main body case 1 side. The measurement terminal 9 for the negative electrode on the lid 8 side may be brought into contact with the negative electrode of the battery in this state, so that the measurement can be easily performed with one hand.

Further, in this small electronic device, since the measurement terminal 7 for the positive electrode is provided below the electrode insertion hole 6 provided in the lid mounting portion 4, for example, FIG. 4A and FIG. As shown in (), when measuring the remaining amount of the dry battery 20, unless the protruding positive electrode 21 of the dry battery 20 is inserted into the electrode insertion hole 6, the positive electrode 21 of the dry battery 20 is brought into contact with the measurement terminal 7 for the positive electrode. Since it is not possible to measure the positive electrode 21 and the negative electrode 22 of the dry battery 20 by mistake, it is possible to reliably measure the remaining amount of the dry battery 20. Moreover, since the electrode insertion hole 6 is formed in a shape in which elongated cutouts 6b are provided in the upper and lower portions of the circular portion 6a, for example, as shown in FIGS. 5 (A) and 5 (B), a button type battery is provided. When the button type battery 30 is erected when it is measured, if the button type battery 30 is inserted into the electrode insertion hole 6 so as to correspond to the upper and lower cutouts 6b, the positive electrode 31 around the button type battery 30 becomes the positive electrode. It can be brought into contact with the measuring terminal 7. Therefore, in this state, if the negative electrode 32 on one side of the button type battery 30 is brought into contact with the measuring terminal 9 for the negative electrode on the lid 8 side, the button type battery 30 can be easily measured.

Further, in this small electronic device, when the measurement work is not performed, the cord 11 is housed in the cord housing recess 5 and the lid body 8 is attached to the lid mounting portion 4, so that the measuring terminals 7, 9 and The cord 11 does not get in the way and the measuring terminals 7 and 9 and the cord 11 are not lost, so that the cord 11 can be carried well.

Although the lid 8 is detachably attached to the lid mounting portion 4 of the main body case 1 in the above-described embodiment, the present invention is not limited to this, and the lid 8 may be rotatably provided. In this case, the measurement terminal 7 of the lid mounting portion 4 and the measurement terminal 9 of the lid body 8 may be provided so as to face each other. By doing so, the cord 11 becomes extremely short, so that it is not always necessary to provide the cord storage recess 5, and the mounting density of the device can be increased and the device can be downsized.

Further, in the above-described embodiment, the positive electrode measuring terminal 7 is provided on the lid mounting portion 4 of the main body case 1, and the negative electrode measuring terminal 9 is provided on the lid body 8. However, the present invention is not limited to this. The body 8 may be provided with the measurement terminal 7 for the positive electrode, and the lid mounting portion 4 of the main body case 1 may be provided with the measurement terminal 9 for the negative electrode. In this case, the electrode insertion hole 6 may be provided in the lid body 8 and the measurement terminal 7 for the positive electrode may be exposed so as not to project from the electrode insertion hole 6.

[0013]

[Effect of the device]

 As described above, according to the present invention, the main body case is provided with the first measurement terminal, and the main body case is covered with the first measurement terminal and is openably and closably attached to the main body case to electrically connect to the main body case. Since a second measuring terminal connected to the main body case is provided, when the lid is opened from the main body case, the first measuring terminal is exposed on the main body case side and the second measuring terminal is exposed on the lid side. By arranging the battery between the measurement terminals of and connecting both electrodes of the battery and the first and second measurement terminals, the voltage such as the remaining battery capacity can be measured. By closing the lid, the measuring terminal does not get in the way and the measuring terminal is not lost when carrying.

[Brief description of drawings]

FIG. 1 is an external front view showing an embodiment of the present invention.

FIG. 2 is a front view showing a state in which a lid is removed from a main body case.

FIG. 3 is a cross-sectional view of essential parts in a state in which a lid is arranged above a main body case.

FIG. 4A is a partially cutaway side view showing a measurement state when measuring a dry battery, and FIG.

FIG. 5A is a partially cutaway side view showing a measurement state when measuring a button-type battery, and FIG. 5B is a BB arrow view thereof.

[Explanation of symbols]

 1 Main body case 7 Measuring terminal for positive electrode 8 Lid 9 Measuring terminal for negative electrode 11 Code

Claims (1)

[Scope of utility model registration request] 1. A main body case provided with a first measuring terminal, and a second main body case which is openably and closably attached to the main body case so as to cover the first measuring terminal and electrically connected to the main body case. A small electronic device with a voltage measuring function, comprising: a lid provided with the measuring terminal of.