JPH09204939A - Conductive contact pin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure the voltage and temperature of a battery simultaneously when a current ins taken out from the battery. SOLUTION: A contact body 3 is fitted into a mounting sleeve 2 in such a manner as to be slidable. A coil spring 12 is compressed and arranged between the head part 3a of the contact body 3 and the mounting sleeve 2 to energize the contact body 3 forward. The contact body 3 is internally hollowed, and a voltage probe 13 is fitted thereto in such a manner as to be longitudinally slidable. In order to electrically insulate the voltage probe 13 from the contact body 3, an insulating sleeve 15 is put between the both. A stepped part 21 is formed in the rear of the voltage probe, and a coil spring 22 is compressed and arranged between the stepped part 21 and the insulating sleeve 15 to energize the voltage probe 13 forward. The voltage probe 13 is also internally hollowed, and a temperature probe 23 is housed therein in such a manner as to be longitudinally slidable. The temperature probe 23 is formed of a temperature sensor (for example, thermistor) housed in a copper-made cap.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive contact pin for contacting an electrode of an electric component such as a battery and electrically connecting it to another electric component.

[0002]

2. Description of the Related Art When performing a charge / discharge test of a secondary battery such as a lithium-ion battery, it is necessary to measure the temperature of the battery main body. Conventionally, a temperature sensor is closely attached to the body of the battery to perform the test. I was going. However, this method requires a large space for mounting the temperature sensor and is not suitable for testing a large number of batteries arranged side by side.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a conductive contact pin incorporating a temperature sensor in order to solve such a problem.

[0004]

The conductive contact pin of the present invention is a temperature probe that is slidable in the axial direction in a cylindrical contact body whose tip is a contact surface with an electrode of an electric component. Fit in. A temperature sensor such as a thermistor is installed inside the temperature probe. Then, a spring for urging the temperature probe forward is provided.

[0005]

The battery can be electrically connected to another electric circuit connected to the contactor simply by pressing the tip of the contactor body against the electrode of the battery or the like. At the same time, the tip of the temperature probe is pressed against the electrode of the battery by the spring, and the temperature of the electric component can be measured.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The conductive contact pin of the present invention will be described with reference to FIGS. 1 and 2. A contact body 3 is slidably fitted in a mounting sleeve 2. The contactor body 3 has a battery 5 at the tip.
It is the contact surface 6 with. A female screw 7 is engraved on the rear part of the contactor body 3, and a nut 8 screwed onto the female screw 7 is tightened to attach the lug terminal 10. The lead wire 11 connected to the lug terminal 10 is connected to a load (current source during charging).

A coil spring 12 is contracted between the head portion 3a of the contactor body 3 and the mounting sleeve 2. The contactor body 3 is biased forward by this spring, and the tip contact surface 6 comes into close contact with the battery.

The contactor body 3 is formed in a hollow shape, and the voltage probe 13 is fitted therein so that it can be slid back and forth. To electrically insulate the voltage probe 13 from the contact body 3, an insulating sleeve 15 is placed between them.
A female screw 16 is engraved on the rear of the voltage probe 13,
The nut 17 is screwed into this and the lug terminal 18 is attached. Reference numeral 19 is an insulating washer. A lead wire 20 connected to the lug terminal 18 leads to a voltmeter.

Forming a step 21 behind the voltage probe,
A coil spring 22 is contracted between the step portion 21 and the insulating sleeve 15. The voltage probe 13 is biased forward by this spring, and the tip contact surface comes into close contact with the battery.
(If there is no battery, as shown in FIG.
Slightly protruding from the tip of. )

The voltage probe 13 is also formed hollow, and the temperature probe 23 is slidably housed in the temperature probe 23. Reference numeral 28 is an insulating sleeve. Temperature probe 2
As shown in detail in FIG. 2, reference numeral 3 denotes a temperature sensor (for example, a thermistor) housed in a copper cap 24. A lead wire 26 extending from the temperature sensor passes through the voltage probe 13 from the rear end. It is pulled out and guided to the temperature measurement circuit.

The lower end of the temperature probe 23 and the voltage probe 1
The coil spring 29 is contracted between the three stepped portions 27.
The temperature probe 23 is biased forward by this spring, and the tip of the temperature probe 23 comes into close contact with the battery electrode. (If you have no batteries,
As indicated by the chain line in FIG. 2, it slightly protrudes from the tip of the voltage probe. )

FIG. 3 shows an outline of a battery test apparatus using this conductive contact pin. A battery tray 30 has a large number of recesses 31 formed therein, and batteries 5 to be tested are placed in these recesses and arranged. . The conductive contact pins 32 described above are attached to the upper and lower electrode support plates 32, 32 at the same intervals as the battery 5. It is not necessary to incorporate a temperature probe into the conductive contact pin attached to the upper electrode support plate.

When conducting the test, the batteries 5 arranged in the case 30 are sandwiched between the upper and lower electrode support plates 32. By doing so, the tip of the conductive contact pin 31 is pressed against the corresponding electrode of the battery 5. It should be noted here that each of the contact body 3, the voltage probe 13, and the temperature probe 23 has its own spring 12, 22, 29, and is pushed forward by its elastic force, so that the tip of the battery is That is, it should be in close contact with the electrodes. In particular, as a result of the voltage probe 13 being in close contact with the battery electrode, the voltage of the battery can be accurately measured without being affected by the voltage drop due to the charge / discharge current. At the same time, the temperature of the battery itself can be measured by the temperature probe 23.

In the above embodiment, the voltage probe 1
Although the temperature probe 23 is provided in the contact body 3, the temperature probe may be provided in the contactor body 3 without providing the voltage probe.

[0015]

As described above, the conductive contact pin incorporates the temperature probe in the contact body,
Since the electrical connection and the temperature measurement of the electrical components to be tested can be performed at the same time and the space for mounting the temperature sensor becomes unnecessary, it is suitable when a large number of batteries are arranged side by side to perform a charge / discharge test. Further, since the temperature probe is biased forward by the spring, the tip of the temperature probe comes into close contact with the battery, and accurate temperature measurement can be performed.

A voltage probe may be provided in the contact body, and a temperature probe may be provided in the voltage probe.
In this way, even when a large current flows through the contactor body, the voltage probe can measure the voltage of the electric component under test without being affected by the voltage drop.

[Brief description of drawings]

1 is an elevational view of a conductive contact pin in use, with the right half shown in cross-section.

FIG. 2 is likewise a sectional view of the head.

FIG. 3 is an explanatory diagram of a battery testing device.

[Explanation of symbols]

 3 Contact body 5 Battery 13 Voltage probe 22 Spring 23 Temperature probe 25 Temperature sensor 29 Spring

Claims (2)

[Claims] 1. A cylindrical contact body (3) whose tip is a contact surface with an electrode of an electric component (5), and is fitted in the contact body so as to be slidable in an axial direction. , A temperature probe (2) incorporating a temperature sensor (25) inside
3) and a conductive contact pin comprising a spring (29) for urging the temperature probe forward so that the tip of the temperature probe contacts the electrode of the electric component. 2. A cylindrical contactor body (3) whose tip is a contact surface with an electrode of an electric component (5), and an axially slidable body in the contactor body, and A voltage probe (13) fitted in an electrically insulated state from the contactor body, and a spring (22) for urging the voltage probe forward so that the tip of the voltage probe comes into contact with an electrode of an electric component.
A temperature probe (23) fitted in the voltage probe so as to be slidable in the axial direction and having a temperature sensor (25) incorporated therein, and a tip of the temperature probe is in contact with an electrode of an electric component. A conductive contact pin consisting of a spring (29) that urges forwardly.