KR101592589B1 - Apparatus and method for low frequency vibration test of wire terminal - Google Patents

Abstract

The present invention relates to a low frequency vibration testing apparatus and method for evaluating a wire terminal, in which, in order to verify a wire terminal crimping portion due to low frequency vibration, a voltage between a front end and a rear end of a wire terminal crimping portion Frequency vibration test device for evaluating a wire terminal which can be confirmed by measuring the influence of vibration of a low frequency region on a wire terminal crimping portion which has not been considered in the prior art by measuring voltage or resistance, And methods.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low frequency vibration test apparatus for a wire terminal,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for testing a wire terminal, and more particularly, to a low frequency vibration testing apparatus and method for evaluating a wire terminal configured to enable a low frequency vibration test on a crimped portion of a wire terminal.

As is well known, an airbag system is an apparatus for safely protecting a passenger who is aboard an automobile by cushioning an airbag by inflating an airbag instantaneously in the event of a crash of an automobile. Generally, the airbag system includes a handle And is installed in the instrument panel of the passenger seat side.

In addition, a side airbag (SAB) system constructed by mounting an airbag inside a seat on which a driver or an occupant sits may be mounted in case of a side collision of the vehicle. In this case, So that the air bag is deployed.

The reliability of the airbag system is important because it is an important safety device that directly protects the lives of the driver and passengers and maintains life when an accident occurs.

Accordingly, it is necessary to appropriately test the state of the airbag system, such as whether or not the airbag system can be normally operated at an accurate timing with respect to the airbag deployed in the actual vehicle, .

Since the air bag system can be regarded as an electrical system using an electrical signal in the process of determining the time of deployment of the air bag or deploying the actual air bag, various tests must be performed not only on the mechanical operation state but also on the electrical operation state.

Especially, it is necessary to evaluate the damage and defects of circuit and wiring due to long-term durability, and to find out the problem of wiring connection condition below the reference value. For this, accurate evaluation method and testing device should be constructed.

1 is a view for explaining a problem that an airbag warning lamp is lit due to excessive wiring resistance occurring in a wire terminal or a connector in a side airbag system.

As shown in the figure, the side airbag module 2 is embedded in the side portion of the seat 1, and when the side airbag 2a receives the electrical signal from the airbag control unit (ACU) The airbag warning lamp 4 may be turned on when excessive resistance of the wiring occurs before the deployment operation in a state where the deployment operation is in progress.

The wiring 5 is arranged on the lower side of the seat 1 in order to solve the lighting problem of the airbag warning lamp due to the excessive resistance of the wiring. However, due to the interference between the airbag wiring at the seat bottom and the seat crossmember, As a result, excessive resistance may be generated and the warning lamp may be turned on.

Fig. 2 is a diagram showing a reproduction evaluation method using a high-quality seat and side airbag wiring, in which shunt 11 and an oscilloscope (not shown) (Side air bag system total voltage) (V1 (total side air bag system total voltage)) for diagnosis of the side airbags at the front end and the rear end, respectively, with reference to the air bag connector 13 at the seat lower end And the voltage V2 on the SQUIB side are measured to analyze the voltage drop V1-V2 due to the seat lower end connector side.

Here, the ACU diagnosis resistance is 'V1 / I' and the resistance of the airbag connector at the lower end of the seat is '(V1-V2) / I'.

In Fig. 2, reference numeral 14 denotes a squib-side connector.

Also, as a reproduction evaluation method using a sheet evaluation mode, the resistance increase of the seat lower airbag connector side is confirmed as the number of sliding times increases by evaluating the sliding endurance of the seat, thereby confirming the influence of the seat bottom wiring and cross member interferences .

In addition, the 6-axis vibration durability evaluation can check the resistance fluctuation of the seat lower connector side in a specific frequency band, and the influence of vibration of the seat can be confirmed through this.

Also, it is possible to perform a win / fall durability evaluation to evaluate the influence of the seat cushion and the seat back load.

In addition, you can check whether the specification of the high-end side airbags and the lead wire wires of some high-end side airbags are unsatisfied or not through wiring and airbag lead wire analysis. Terminal X-ray inspection to check whether there is any abnormality in the connector and terminal crimping part, etc. Check the terminal plating condition (check the color of the under-plating exposure due to contact wear) And to check the fixing strength of the wires.

3, the side air bag SAB side terminal crimping resistor R1, the terminal contact resistance R2 and the wiring side terminal crimping resistor R3 are measured and the voltage drop (R1 + R2 + R3) is measured therefrom, And can confirm the satisfaction of the specifications.

However, conventional testing apparatuses and methods can not measure the wiring resistance values of terminals, connectors, etc. of the side airbag system in a frequency band lower than a certain frequency (for example, 10 Hz).

Since the resistance value in the low frequency region is related to the fixing force of the wire, verification of the terminal crimping portion to the low frequency is necessary for analyzing the cause such as excessive resistance. Therefore, There is a desperate situation that can be done.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a wire terminal crimping portion, Frequency vibration test device for evaluating a wire terminal which can be confirmed by measuring the influence of vibration of a low frequency region on a wire terminal crimping portion which has not been considered in the prior art by measuring voltage or resistance, And a method thereof.

In order to accomplish the above object, the present invention provides a vibration generator comprising: a vibration generator for generating and providing vibration in a low frequency range; A shake table coupled to a wire of the measurement wire terminal to transmit the vibration provided from the vibration generator; A test connection terminal connected to the measurement wire terminal for current application; A current meter connected to apply a current between the measurement wire terminal and the test connection terminal; A measuring device connected to measure a resistance or voltage between the measuring wire terminal and the test connecting terminal in a current application state; And a temperature control chamber for applying a temperature condition in a state that the measuring wire terminal and the test connection terminal connected thereto are inserted.

The present invention also provides a method of testing a semiconductor device, comprising: connecting a test connection terminal to a measurement wire terminal and then placing the test connection terminal in a temperature regulation chamber; Applying a vibration in a low frequency region provided by a vibration generator to a wire of a measuring wire terminal through a shaking table and applying a current between the measuring wire terminal and a testing connecting terminal using a current generator at a set temperature condition in a temperature control chamber; Measuring a resistance or voltage between the measurement wire terminal and the test connection terminal using the measuring device while applying the temperature condition, the low frequency vibration, and the current; And evaluating the state of the measuring wire terminal using the measured resistance value or the resistance value calculated from the measured voltage.

According to the low frequency vibration testing apparatus and method for evaluating a wire terminal according to the present invention, in order to verify a wire terminal crimping portion due to low frequency vibration, a low frequency vibration is applied to a wire connected to a wire terminal, Frequency vibration test for measuring a voltage or a resistance between the wire terminal crimping portion and the wire terminal crimping portion can be performed by measuring the voltage or resistance of the wire terminal crimping portion.

1 is a view for explaining a problem that an airbag warning lamp is turned on due to an excessive wiring resistance in a conventional side airbag system.
2 is a view showing a reproduction evaluation method using a conventional high-grade seat and side airbag wiring.
3 is a diagram illustrating a method of measuring and analyzing terminal resistance in a conventional side airbag system.
4 is a diagram showing the configuration of a low-frequency vibration test apparatus for wire terminal evaluation according to the present invention.
5 is a view for explaining a wire connection method between a current meter and a measuring instrument in the use of the low frequency vibration testing apparatus for wire terminal evaluation according to the present invention.
6 is a connection state diagram schematically showing terminal connection states at the time of testing for a plurality of measurement wire terminals in a low frequency vibration testing apparatus for wire terminal evaluation according to the present invention.
7 is a view showing an embodiment of a measuring wire terminal connected in series and a jig device for fixing a test connecting terminal as shown in FIG.
8 is a view showing vibration conditions and temperature conditions in a low-frequency vibration test method for wire terminal evaluation according to the present invention.
Fig. 9 is a diagram showing an aging temperature condition to be performed before the low frequency vibration test for wire terminal evaluation according to the present invention. Fig.
FIG. 10 is a view for explaining a factor causing a resistance change in the low frequency vibration test evaluation according to the present invention.
11 is a view for explaining a resistance change amount obtained from measurement results in a low frequency vibration test procedure according to the present invention and an evaluation method using the same.
12 is a diagram illustrating actual data collected through a low-frequency vibration test process according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be easily understood by those skilled in the art.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low frequency vibration testing apparatus for evaluating a wire terminal, and more particularly to a low frequency vibration testing apparatus for evaluating a wire terminal, in which a low frequency vibration is applied to a wire connected to a terminal body Frequency vibration test for measuring a voltage or a resistance between the wire terminal crimping portion and the wire terminal crimping portion is performed so that the influence of the vibration of the low frequency region on the wire terminal crimping portion which has not conventionally been considered can be confirmed by measuring the voltage or resistance, And to a test apparatus and method.

The inventors of the present invention have found that in the process of improving the problem of turning on the airbag warning lamp due to excessive wiring resistance of the side airbag system, the wiring resistance value of the side airbag system is fluctuated in the low frequency band lower than 10 Hz, And it has been found that there is a relation between the influence of low frequency vibration at the wire terminal crimping portion where the crimping between the wire and the terminal body is performed. Therefore, it is possible to reduce the necessity of verification of the wire terminal crimping portion at the time of applying the vibration in the low frequency region Thus, the low-frequency vibration testing apparatus and method of the present invention can be usefully used for verifying a wire terminal crimping portion used in a side airbag system.

4 is a diagram showing a configuration of a low-frequency vibration testing apparatus for wire terminal evaluation according to an embodiment of the present invention.

As shown in the drawing, a wire terminal (hereinafter referred to as a measuring wire terminal) 101 to be measured, to which a wire 102 and a terminal body (terminal) 103 are pressed and joined, After the terminal body 103 is inserted into the connector 150 and the connector 150 is fixed by the fixing jig 153 of the jig device 151 and then the test connection terminal 104 is connected to the measuring wire terminal 101, And then a predetermined low-frequency vibration is applied to the wire 102 of the measuring wire terminal 101 to measure the state of the low-frequency vibration.

In this process, the test evaluation is performed by measuring the resistance or voltage between the two sides in a state where a current is applied to both the measuring wire terminal 101 and the testing connecting terminal 104, That is, the resistance existing in the crimping portion between the wire 102 and the terminal body 103, and evaluates the wire fixing force in a state in which the low-frequency vibration condition is applied.

The low frequency vibration testing apparatus for evaluating a wire terminal according to the present invention comprises: a vibration generator 110 for generating and providing vibration; A shake table 111 coupled to the wire 102 of the measuring wire terminal 101 to transmit the vibration provided from the vibration generator 110; A test connection terminal (104) connected to the measurement wire terminal (101) for current application; A current unit 120 connected to apply a current between the measuring wire terminal 101 and the test connecting terminal 104; A meter 130 connected to measure a resistance or a voltage between the measuring wire terminal 101 and the test connecting terminal 104 in a current application state; And a temperature control chamber 140 for applying a temperature condition in a state that the measuring wire terminal 101 and the test connection terminal 104 connected thereto are inserted.

Here, the measuring wire terminal 101 is a wiring part to be tested in which the wire 102 is press-bonded to the terminal body 103, and can be a wire terminal used in a side air bag system. As a new product, When the test is to be carried out, the new product can be aged under specific conditions in order to simulate the evaluation of the high-grade product which has been durable due to the use in the vehicle as described later (low frequency occurring after the endurance To analyze the problem caused by vibration).

That is, the aging process is a problem that the aforementioned problem of lighting the airbag warning lamp is caused by an excessive resistance at a wire terminal of a high quality which has been used for a long time in a vehicle and has been durable to some extent, so that the new measuring wire terminal 101 is aged It is a process to be done.

In this low-frequency vibration test, the wire terminal 101, which is obtained by pressing the wire 102 to the terminal body 103, is subjected to the test, and the terminal body 103 of the measurement wire terminal 101 is tested After inserting the connector 150 into the connector 150, the connector 150 is fixed to the external fixing structure and the test is proceeded.

The vibration generator 110 and the shaking table 111 are components for applying vibration in the low frequency region to the wire 102 of the measuring wire terminal 101. The vibration generator 110 generates vibration in a desired low frequency region, A vibrating table 111 combined with the wire 102 of the measuring wire terminal 101 is vertically moved up and down to apply vibration.

If the vibration generator 110 is capable of generating and outputting a low frequency vibration of 10 Hz or less, particularly 1 Hz (one vibration up and down in 1 second, see FIG. 8) Can be used.

The shaking table 111 is connected to the vibration output side of the vibration generator 110 and transmits vibration in a low frequency region output from the vibration generator 110 and is coupled to the wire 102 of the measurement wire terminal 101.

The test connection terminal 104 is a terminal provided to be electrically connected to the measurement wire terminal 101. Since the current is applied to the measurement wire terminal 101, the test connection terminal 104 is connected to the measurement wire terminal 101 A current is applied between the wire 105 of the test connection terminal 104 and the wire 102 of the measurement wire terminal 101. In this state,

As described above, the current unit 120 is a current unit for applying a current so that current can be conducted between the both sides. The current unit 120 is electrically connected to the wires 102 and 105 of both terminals and applies a predetermined current (e.g.

Also, a meter 130 is provided for measuring a resistance or a voltage in a state in which current is conducted between both terminals, and an oscilloscope can be used as the meter 130.

Fig. 4 is an example of a state in which a single measurement wire terminal 101 is connected so as to enable a low frequency vibration test. As shown in Fig. 4, a single measurement wire terminal 101 can be connected to a test device However, it is also possible to conduct a test by connecting a plurality of measurement wire terminals 101 in series.

The shaking table 111 is connected to the wire 102 of the measuring wire terminal 101 at a predetermined distance L 1 from the end of the connector 150.

One of the two measuring wires of the measuring instrument 130 is connected to the wire 102 of the measuring wire terminal 101 at a predetermined distance L2 from the shaking table 111. [

One of the two current application wires of the current device 120 is connected to the wire 102 of the measurement wire terminal 101 at a predetermined distance L3 from the position where one side of the measurement wire of the measuring device 130 is connected .

5 is a diagram showing an example of setting of L1, L2 and L3.

It is possible to prevent the resistance existing between the wire 105 constituting the test connection terminal 104 and the terminal body 106 to which it is press-coupled, It is preferable that the other side of the measuring wire is directly connected to the terminal body 106 of the test connection terminal 104. [

In connecting the current application wire of the current device 120 to the wire 102 of the measurement wire terminal 101 and the wire 105 of the test connection terminal 104, It is preferable to connect the measuring wire of the measuring device 130 to the wire 102 of the measuring wire terminal 101 and the terminal body 106 of the testing connecting terminal 104, It is preferable to perform soldering to connect them.

In order to simultaneously test the plural measurement wire terminals 101, the measurement wire terminals 101 and the test connection terminals 104 are connected in series as shown in Fig.

6 is a connection state diagram schematically showing terminal connection states at the time of testing for a plurality of measurement wire terminals 101 in a low frequency vibration testing apparatus for wire terminal evaluation according to the present invention.

7 is a view showing an embodiment of a measuring wire terminal 101 connected in series and a jig device 151 for fixing a test connecting terminal 104 as shown in Fig. The plurality of connectors 150 to which the terminals 104 are connected are arranged and fixed at predetermined intervals in the fixing jig 153 which is a fixed structure fixed to the jig device 151 at a predetermined height, 101 at the same time.

At this time, the wires of the measuring wire terminal 101 are connected to the jig device 151 in a state where the connector 150 to which the plurality of measuring wire terminals 101 and the test connecting terminal 104 are connected is fixed to the fixing jig 153, The upper shaking table 112 is disposed horizontally at a predetermined height from the pedestal of the upper shaking table 112.

7, a connector 150 in which a plurality of measuring wire terminals 101 are inserted in a state in which a plurality of measuring wire terminals 101 and a testing connecting terminal 104 are connected in series is connected to a fixing jig And the wires of the measuring wire terminals 101 are extended in a direction parallel to each other to fix the connector 150. The wire extending in the parallel direction is fixed to the bar- And the vibrations output from the vibration generator are simultaneously applied to the parallel wires through the upper shaking table 112. In this case,

The upper shaking table 112 coupled to each wire in the transverse direction is assembled to vibrate integrally with the lower shaking table 113 installed vertically to the pedestal. The lower shaking table 113 is supported by the pedestal (Not shown in Fig. 7) disposed below the lower vibration plate 152 to transmit the vibration output from the vibration generator to the upper vibration table 112. [0042] Fig.

As a result, the low-frequency vibration provided by the vibration generator is sequentially transmitted to the lower shaking table 113 and the upper shaking table 112, so that the lower and lower low-frequency vibrations can be applied to the respective wires. The vibrating table 111 applies vibrations to the wires of the measuring wire terminals 101. [

In the low-frequency vibration testing apparatus including the jig device 151 configured to be able to test a plurality of wire terminals, the wires of the current device 120 and the measuring device 130 are soldered and connected to the corresponding portions. As described above.

The configuration of the low frequency vibration testing apparatus according to the present invention has been described above. The procedure of performing the low frequency vibration test on the measuring wire terminal using the low frequency vibration testing apparatus will be described as follows.

In the low frequency vibration testing process according to the present invention, low frequency vibration, current application, temperature condition, resistance or voltage measurement are simultaneously performed.

The terminal body 103 of the measuring wire terminal 101 is inserted into the connector 150 fixed to the fixing jig 153 and then the measurement wire inserted into the connector 150 is inserted into the connector 150. Then, The test connection terminal 104 is connected to the terminal body 103 of the terminal 101. [

Frequency vibration output from the vibration generator 110 is measured by driving the vibration generator 110 in the temperature control chamber 140 with the vibration table 111 coupled to the wire 102 of the measurement wire terminal 101, And is applied to the wire 102 of the wire terminal 101.

When the vibration is applied, the cycle is repeated with one cycle including a period of rest period during the set time without vibration after applying the low-frequency vibration at a preset time and frequency.

As an example of a method of applying the vibration, as shown in Fig. 8, a vibration is applied for 1 second and then the vibration is stopped for 15 minutes. .

At this time, a wire at a position of 100 mm (L1 in Fig. 5) from the end of the connector 150 is coupled to the shaking table 111, and a vibration of ± 25 mm in amplitude is applied at 1 Hz at this point (1 minute of vibration of ± 25 mm up and down for 1 second and then 15 minutes of stopping).

Placing the rest period is for giving a time to cause oxidative corrosion when the core of the terminal crimp portion is damaged by vibration.

In addition, low-frequency vibration and current are applied to the measurement wire terminal 101 in the temperature regulation chamber 140, and at the same time, a predetermined temperature condition is made to measure resistance or voltage. During the low-frequency vibration and current application, Leaving the mixture at a low temperature for a period of time and leaving it at a high temperature for one cycle.

In this case, as an example of a method of applying the temperature condition, a total of 30 cycles (total of 180 hours) are performed with one cycle being left for 6 hours, and the temperature control chamber 140 for inducing environmental endurance progression to the terminal- And the temperature condition is given.

That is, the sample is allowed to stand for 1 hour at 23 ° C., which is a low temperature condition, for 1 cycle, and then maintained at a high temperature of 80 ° C. for the remaining 5 hours.

If the measuring wire terminal 101 is new before the low-frequency vibration test, separate aging is performed for a predetermined time at a predetermined temperature condition as shown in Fig. 9 for the purpose of aging.

That is, in the side airbag system, when the problem of lighting up the airbag warning lamp due to an excessive wiring resistance occurs after the durability rather than a new one at the initial stage of production, aging is required for a new measurement wire terminal, The terminal 101 is kept in a state of being connected to the test connection terminal 104 in the temperature control chamber 140 under a predetermined high temperature and low temperature condition for a predetermined period of time.

For example, as shown in Fig. 9, a total of 100 cycles are carried out with one cycle of leaving at -40 占 폚 for 30 minutes after leaving at 125 占 폚 for 30 minutes. During the aging, (120) is connected to the test connection terminal (101) and the test connection terminal (104) to continuously apply current.

10 is a graph showing the relationship between the resistance and the voltage of the low frequency vibration test according to the present invention. In the low frequency vibration test according to the present invention, Fig. 8 is a view for explaining an element causing a resistance change in the first embodiment.

As shown in the figure, the elements causing the resistance change in the low frequency vibration evaluation process include (1) line resistance of the wire, (2) resistance of the crimping portion of the measuring wire terminal (crimping resistance between the wire and the terminal body) (Contact resistance between terminals), and (4) crimping resistance of the connecting terminal for testing (crimping resistance between wire and terminal body).

Among them, the line resistance of the wire can be ignored because the length of the wire is short and the core wire is not exposed to the outside except for the connection point of the current meter and the measuring instrument.

In addition, resistance change during measurement is continuously caused by low-frequency vibration due to low-frequency vibration at the crimping portion of the measuring wire terminal. However, since the connector is fixed to the terminal-to-terminal contact resistance, there is no abrasion due to vibration.

Also, since the measurement wire of the measuring device is connected by soldering directly to the terminal body, the resistance of the wire-terminal body is not affected by the corrosion of the crimping portion between the wire and the terminal body. That is, the resistance of the crimp portion of the test connection terminal is also negligible.

That is, a test for measuring a resistance or a voltage is performed simultaneously with the application of a current, and the resistance or the voltage is measured by simultaneously applying the vibration condition and the temperature condition described above, and the resistance value And judges whether the measured wire terminal is good or bad.

FIG. 11 is a view for explaining the resistance change amount obtained from measured values collected in the low frequency vibration testing process according to the present invention and the evaluation method using the same, FIG. 12 is a graph showing the relationship between the resistance variation and the actual data collected through the low- Fig.

As shown in Fig. 11, although the resistance change amount is low at the low temperature condition (23 DEG C) for every cycle based on the temperature condition, the resistance change amount increases after the temperature is raised at the high temperature condition (80 DEG C).

During the repetition of the cycle (30 cycles of the temperature condition), the resistance changes repeatedly as shown in FIG. 11 during the repetition of the predetermined cycle (for a total of 180 hours).

That is, the resistance value measured at the low temperature condition is used, and the difference between the initial resistance value difference (DELTA R1) between the measured wire terminals and the final resistance value and the initial resistance value appearing at low temperature conditions for the whole cycle ΔR2) and the difference between the maximum resistance value and the initial resistance value ΔR3 appearing under low temperature conditions for the entire cycle for each measuring wire terminal 101 are confirmed.

Here, ΔR1 is for confirming the measurement wire terminal which is defective before the test, ΔR2 is for confirming how much the resistance change has occurred after the end of the test, and ΔR3 is the resistance value at the completion of the test, It is to check whether the resistance value has surged.

At this time, after setting the reference values of DELTA R1, DELTA R2 and DELTA R3 in consideration of the excessive resistance region according to the characteristics of the parts to be used for the measured wire terminals, e.g., the characteristics of the side airbag parts, ΔR2, and ΔR3 are compared with reference values to determine the goodness and failure of the EUT.

DELTA R1 is a deviation between the reference resistance value and the initial resistance value of the other measurement wire terminal, with the initial resistance value of the measurement wire terminal having the lowest initial resistance value as a reference value. If the measurement wire terminal having a high initial resistance value exceeds the reference value, .

12 shows resistance changes obtained under low-frequency vibration conditions and temperature conditions with a wire terminal used in a side airbag system as an object of measurement. In the case of a good sample, the overall resistance value state is substantially constant However, if it is defective, it can be seen that the resistance value is excessively increased.

As described above, according to the low-frequency vibration testing apparatus and the testing method according to the present invention, an evaluation method capable of reproducing a wiring resistance overcurrent phenomenon of a vehicle in which a problem (for example, an airbag warning lamp lit due to an excessive resistance) The performance of the terminal crimping portion can be verified with respect to the extended region and the cause of the trouble can be confirmed for the vehicles having the problems in the past.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Modified forms are also included within the scope of the present invention.

101: Measuring wire terminal 104: Test connecting terminal
10: Vibration generator 111: Shake table
120: current meter 130: measuring instrument
140: Temperature control chamber 150: Connector
151: jig device 153: stationary jig

Claims (11)

A vibration generator 110 for generating and providing vibration in a low frequency region;
A shake table 111 coupled to the wire 102 of the measuring wire terminal 101 to transmit the vibration provided from the vibration generator 110;
A test connection terminal (104) connected to the measurement wire terminal (101) for current application;
A current unit 120 connected to apply a current between the measuring wire terminal 101 and the test connecting terminal 104;
A meter 130 connected to measure a resistance or a voltage between the measuring wire terminal 101 and the test connecting terminal 104 in a current application state;
A temperature control chamber 140 for applying a temperature condition to the measurement wire terminal 101 and the test connection terminal 104 connected thereto;
Lt; / RTI >
A connector 150 into which the terminal body 103 of the measuring wire terminal 101 is inserted;
A jig device 151 for fixing the position of the connector 150;
, And the test connection terminal (104) is connected to the measurement wire terminal (101) while the connector (150) is fixed.
delete The method according to claim 1,
The jig device 151 includes a plurality of measurement wire terminals 101 and a plurality of test connection terminals 104 connected to each of the measurement wire terminals 101, A jig 153,
The shaking table 111 is disposed at a predetermined distance from the fixing jig 153 so that the shaking table 111 vibrates the wires of each measuring wire terminal 101 at a position distant from the connector 150 And the low-frequency vibration test apparatus for evaluating a wire terminal.
Connecting the test connection terminal to the measurement wire terminal and then placing the test connection terminal in the temperature control chamber;
Applying a vibration in a low frequency region provided by a vibration generator to a wire of a measuring wire terminal through a shaking table and applying a current between the measuring wire terminal and a testing connecting terminal using a current generator at a set temperature condition in a temperature control chamber;
Measuring a resistance or voltage between the measurement wire terminal and the test connection terminal using the measuring device while applying the temperature condition, the low frequency vibration, and the current;
Evaluating the state of the measuring wire terminal using the measured resistance value or the resistance value calculated from the measured voltage;
Lt; / RTI >
The connector is fixed to the jig device in a state where the terminal body of the measuring wire terminal is inserted into the connector, and then the test connection terminal is connected to the measuring wire terminal,
A plurality of measuring wire terminals and a plurality of test connection terminals connected to each of the measurement wire terminals are connected in series and a plurality of connectors are fixed to the fixing jig, Wherein a vibration of the wire of the wire terminal is applied to the wire.
delete delete The method of claim 4,
The resistance or voltage between each measuring wire terminal and the test connecting terminal is measured while a plurality of measuring wire terminals and a plurality of test connecting terminals connected to each measuring wire terminal are connected in series,
In the step of evaluating the state of the measuring wire terminal,
A difference ΔR2 between an initial resistance value and an initial resistance value of each measuring wire terminal and a difference between a maximum resistance value and an initial resistance value difference ΔR3 between the measuring wire terminals, And comparing it with a preset reference value.
The method of claim 4,
The new measurement wire terminal is connected to the test connection terminal in the temperature control chamber and left for the set time in the preset high temperature and cold temperature condition with the current applied. And the low frequency vibration test method for evaluating a wire terminal.
The method of claim 4,
The low frequency vibration and the current are allowed to remain at the low temperature for the set temperature and the set time while the high frequency and the current are applied, and then the cycle is repeated to give a temperature condition for repeating the cycle.
The method of claim 4,
And repeating the cycle by repeating the cycle with the cycle being set at the set time and the set frequency at the time of applying the low-frequency vibration and having the resting period without the vibration for the set time after applying the low-frequency vibration.
The method of claim 4,
Wherein the measuring wire of the measuring instrument is soldered to the wire of the measuring wire terminal and the terminal body of the testing connecting terminal, respectively.

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