KR100360478B1 - Thickness and conductivity measuring device - Google Patents

Abstract

PURPOSE: A thickness and electrical conductivity measuring apparatus is provided to simplify measuring operation of a test object which is subject to deformation, without movement of the test object. CONSTITUTION: The measuring apparatus includes an anvil(12) provided at one side thereof for laying a test object. At the other side of the anvil, a spindle(13) is provided for vertical movement related to the anvil. A thimble(14) is coupled to the spindle(13) for moving forward and backward by the rotation thereof. A conductive layer is provided at one side of the anvil and the spindle, in which an electrical path from the anvil to the spindle is electrically blocked. Thus, the apparatus is capable of measuring the electrical conductivity of the test object such as a solid polymer electrolyte plate, interposed between the anvil and the spindle.

Description

Thickness and conductivity measuring device

The present invention relates to a thickness and electrical conductivity measuring apparatus, and more particularly, to a thickness and electrical conductivity measuring apparatus structured to be able to measure the thickness and electrical conductivity of the test object without moving the test object.

The solid polymer electrolyte plate used in the lithium secondary battery is made of a flexible gel (gel) material of a thin plate of 0.1 to 0.3mm thick. After the solid polymer electrolyte plate is manufactured in a thin plate in the manufacturing line, the electrical conductivity, the physical strength, the thickness, etc. are measured to determine whether the product is good or bad.

Conventionally, the electrical conductivity and the thickness of the measured items of the prepared electrolyte plate were measured using a separate measuring device.

Since the electrical conductivity and the thickness are measured by using a separate measuring device, the electrolyte plate, which is a test object, is pressed and pressed when measuring the electrical conductivity, as well as the characteristic value change of the electrical conductivity, and the thickness thereof is deformed. There is a problem in that the thickness of the electrolyte plate measured in the thickness measuring device by moving the difference with the actual thickness of the prepared electrolyte plate is generated. Conventional electrical conductivity measuring instruments are manufactured for the purpose of measuring electrical conductivity, and when the hardness of the test object is low, such as an electrolyte plate in a gel state, the test object is placed at the test target position and the contact plates are brought into close contact with both sides of the test object. In the process, it is not possible to accurately determine how much the test object is pressed and contacted, so the deviation is severe due to the electric conductivity value measured when the test object is over or under-applied, and the thickness and electric conductivity must be measured separately. There is a problem that the time required to operate and separate the operation is increased.

The present invention was devised to improve the above problems, and the thickness and conductivity without moving the inspection object while reducing the pressed state even for the inspection object having a low hardness and severe characteristic change of the parameter to be inspected according to the appearance deformation. It is an object of the present invention to provide a thickness and conductivity measurement device that can be measured together.

1 is a partial cutaway plan view showing a thickness and conductivity measurement apparatus according to an embodiment of the present invention.

Figure 2 is a partial cutaway plan view showing a thickness and conductivity measurement apparatus according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

11: body 12: anvil

13: Spindle 14: Thimble

15: Ratchet Stop 16: Indicator

17: Inspection object 21: First part

22: second part 23: insulation coupling portion

25, 26, 41: connection groove 31: first friction plate

32: spring 33: second friction plate

34: rotor 40: cap

In order to achieve the above object, the thickness and electrical conductivity measuring device according to the present invention is provided on one side of the body and the spindle and the spindle provided on the other side of the body so that the test piece is raised to the straight up and down facing the anvil and the anvil In the measuring device for measuring the thickness of the specimen to be inspected coupled to the outside and installed on the outside of the body and the front and back the spindle by the rotation, a conductive means is provided on each side of the anvil and the spindle A path from the anvil to the body and the spindle is electrically blocked so that the electrical conductivity of the inspection object interposed between the anvil and the spindle can be measured.

To this end, the anvil and the spindle are each formed of a conductive material as the conductive means, and the anvil and the body are insulated from each other, or the anvil is formed of a conductive material, and the spindle is a predetermined distance from a tip facing the anvil. The first part may include a first part formed of a conductive material and a second part connected to the first part, and the like may be insulated from each other.

In another embodiment, the anvil is made of a conductive material, and a cap having a conductive material layer to a predetermined depth at an outer circumferential surface thereof is attached to the front end of the spindle while being insulated from the spindle, through the anvil and the cap. It includes measuring the electrical conductivity of the test specimen.

Hereinafter, a thickness and electrical conductivity measuring apparatus according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a partial cutaway plan view showing a thickness and electrical conductivity measurement apparatus according to an embodiment of the present invention.

Referring to this, the measuring device is largely the body 11 and the anvil 12 provided on the lower side of the body 11, the spindle 13 is vertically raised and lowered opposite to the anvil 12, the thimble connected to the spindle ( 14), the ratchet stop 15 which blocks the advance of the spindle 13 above a certain pressure, and the separation distance between the anvil 12 and the spindle 13 spaced apart by the forward and backward of the spindle 13 And an indicator 16 that displays text. It is preferable to attach a cap (not shown) having a cross-sectional area larger than the cross-sectional area of the spindle 13 to the spindle tip so as to increase the contact area with the inspection object 17 to reduce the appearance change of the soft material.

A screw thread is formed on the upper side of the spindle 13, and a thread groove corresponding to the screw thread is formed on the body 11, and the spindle 11 is separated from the body 11 to rotate the thimble 14 connected to the spindle 13. 13) is constructed so that the straight up and down. The spindle 13 has a first portion 21 and a second portion 22 made of a conductive material joined by an insulating coupling portion 23, so that the first portion 21 and the second portion 22 are It is insulated, and the 1st part 21 is provided with the connection groove 26 of the same shape as the connection groove 25 formed in one side of the anvil 12 at one side. Probes withdrawn from an electrical conductivity measuring device (not shown) are connected to the connection grooves 25 and 26.

The ratchet stop 15 is provided such that the spindle 13 is prevented from moving forward by pressurization to an object to which the front end of the spindle 13 is in contact with, and one side thereof is the spindle 13 and the screw. A portion having a first friction plate 31 coupled to the other side and having a sawtooth shape or a curved shape and a spring 32 for elastically supporting the first friction plate 31 and the first friction plate 31 are engaged. The second friction plate 33 having a shape that is to have a structure that is coupled to the rotating portion 34 provided to be rotatable relative to the body (11). Therefore, when there is no object in contact with the front end of the spindle 13, the advance proceeds finely by the rotation of the rotating part 34, but when blocked by the inspection object 17, the pressure level pushing the inspection object 17 is It is determined by the elastic force of the spring 32, the advance of the spindle 13 does not proceed above a certain pressure, it is possible to limit the pressing of the inspection object 17 to a predetermined level or less, What is necessary is just to adjust the elastic strength of the spring 32 so that the press of an external shape may be reduced according to hardness.

The distance between the spindle 13 and the anvil 12 is measured by a ruler engraved in the thimble 14, or the distance between the anvil 12 and the spindle 13 according to the movement distance by monitoring the position movement of the spindle 13; It is measured through the letters of the indicator 16 configured to indicate the distance.

Here, the distance between the spindle 13 and the anvil 12 is measured by the engraved scale from the unit length determined by the thread pitch formed on the spindle 13 and the circumferential length of the thimbles equally divided into a predetermined number.

The measuring device constructed as described above measures thickness and electrical conductivity as follows.

First, the inspection object 17 is placed on the anvil 12 formed of a conductive material, and first, while confirming that the tip of the spindle 13 moves to the inspection object 17 while rotating the coarse adjustment 14 for roughly adjusting, When the state to be separated from the inspection object 17 by a predetermined distance, while rotating the rotor 34 of the ratchet stop (15) finely advancing the spindle 13, the second friction plate 33 of the rotor 34 is When the rotation is made blind without providing the forward force of the spindle 13, the rotation of the rotor 34 is stopped, and the thickness of the inspection object 17 is checked through the scale of the ruler or the character of the indicator 16, Then, the thickness and electrical conductivity measurement is completed by reading the electrical conductivity value measured through the probe of the conductivity measuring device inserted into the connection grooves.

Therefore, the thickness and electrical conductivity can be measured together without moving the inspection object 17 by one adjustment operation, so that the characteristic deviation of the inspection object 17 due to the deformation reduction of the inspection object 17 is reduced, and the required work is performed. The time is shortened.

2 shows a measuring device according to another embodiment of the present invention.

In this regard, the measuring device has a cap 40 attached to the tip of the spindle 13 in contrast to the structure of the measuring device shown in FIG. 1, and the spindle 13 is formed of a seamless conductive material. Has its features.

The cap 40 has an inner wall formed of an insulating material so as to be insulated from the tip of the spindle 13, and has a conductive layer of a conductive material up to a predetermined depth on the surface thereof, and has a depth smaller than two layers of the conductive layer on the surface thereof. The connection groove 41 is formed. Parts interposed with the same member number as in FIG. 1 are elements having the same function.

The measuring method is the same as described in the measuring device of FIG. 1, and the indicator 16 and the scale indicator are adapted to display the separation distance between the anvil 12 and the tip of the cap 40.

In addition to the structure described above, the same effect can be obtained in the case of blocking the conduction path via the body 11 by interposing an insulating layer at the coupling portion between the anvil 12 and the body 11.

As described so far, the measuring apparatus according to the present invention can measure the thickness and conductivity without moving the inspection object, so that the work time is shortened and the appearance change by adjusting the elastic force of the spring even for the hardness test object. Reduction can be adjusted to provide more accurate measurement data.

Claims (12)

A spindle provided on one side of the body and a spindle provided on the other side of the body so as to rise and fall linearly opposite to the anvil to be mounted on the test object, and a spindle that is installed on the outside of the body and rotates the spindle forward by the rotation thereof. In the measuring device for measuring the thickness of the inspection object provided with, Conductive means is provided on one side of each of the anvil and the spindle, and a path from the anvil to the body and the spindle is electrically blocked to measure an electrical conductivity of the inspection object interposed between the anvil and the spindle. Thickness and electrical conductivity measuring device, characterized in that it can be. The apparatus of claim 1, wherein the conductive means is formed of a conductive material such that the anvil and the spindle are formed, and the anvil and the body are insulated from each other. The thickness and conductivity measuring apparatus of claim 2, wherein each of the anvil and the spindle has a connection groove for inserting a probe drawn from the conductivity measuring apparatus. The thickness and electrical conductivity measurement of claim 1, wherein the spindle is insulated from each other by a first portion formed of a conductive material and a second portion connected to the first portion from a tip portion to a predetermined distance facing the anvil. Device. The thickness and conductivity measuring apparatus of claim 4, wherein each of the anvil and the one side of the first portion is provided with a connection groove for inserting a probe drawn from the conductivity measuring apparatus. 5. The thickness and conductivity measuring apparatus of claim 4, wherein a cap having a cross-sectional area larger than that of the spindle is attached to the front end of the spindle to increase a contact area with the specimen to be inspected. The thickness and conductivity measuring apparatus of claim 1, wherein an indicator is displayed on the body to display the space between the anvil and the spindle spaced apart by the front and rear of the spindle. The apparatus of claim 1, wherein a ratchet stop is provided on one side of the body such that the spindle is prevented from being pushed to the object to which the tip of the spindle is in contact with the spindle by more than a predetermined pressure. The method of claim 1, wherein the conductive means The anvil is made of a conductive material, and a cap having a conductive material layer to a predetermined depth is attached to the front end of the spindle while being insulated from the spindle, thereby providing electrical conductivity of the specimen to be inspected through the anvil and the cap. Thickness and electrical conductivity measuring device, characterized in that capable of measuring. 10. The thickness and conductivity measuring apparatus of claim 9, wherein each of the anvil and the cap is provided with a connection groove for inserting probes drawn from the conductivity measuring equipment. The thickness and conductivity measuring apparatus of claim 9, wherein the body is provided with an indicator for displaying a separation distance between the anvil and the cap spaced by the front and rear of the spindle in letters. 10. The apparatus of claim 9, wherein a ratchet stop is provided on one side of the body such that the spindle is prevented from being pushed to the object in contact with the cap by a pressure higher than a predetermined pressure.