KR20190090291A - Test device for battery - Google Patents

Abstract

The present invention relates to a battery test device which comprises: a base unit; a first plate positioned above the base unit and movable in a vertical direction; a second plate positioned above the first plate, movable in a vertical direction, and having a battery seated between the first plate and the second plate; a pressing means for pressing the second plate toward the first plate; a load measuring sensor provided between the base unit and the first plate, and measuring a load transmitted from the first plate; and a distance measuring sensor measuring a distance between the first plate and the second plate.

Description

[0001] TEST DEVICE FOR BATTERY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery testing apparatus, and more particularly, to a testing apparatus capable of measuring a thickness and a load change of a battery.

Technologies relating to electronic devices using power charged in batteries such as wireless cleaners, electric bicycles, and electric vehicles, as well as small electronic devices such as notebooks, smart phones, tablet computers, The demand for rechargeable batteries is increasing.

The rechargeable secondary battery includes a nickel-cadmium battery, a lead-acid battery, a nickel metal hydride battery, a lithium-ion battery, and a lithium polymer battery. have.

The secondary battery, that is, the battery, repeatedly expands and contracts depending on the charge / discharge state, the speed and the temperature, and the charging and discharging process is repeated, and the expansion behavior due to the deterioration may occur.

Due to the expansion behavior of the battery, the thickness of the battery increases and a load (internal pressure or the like) due to the expansion is generated. As a result, a very large load is generated compared to the thickness variation. Therefore, equipment deformation due to battery expansion behavior Can be caused.

Accordingly, it is possible to increase the rigidity of the battery mounting part or mount the sensing sensor in the equipment equipped with the battery. However, the unit cost of the equipment can be greatly increased.

Therefore, it is an important task in battery development and utilization to test and measure the thickness increase amount and the corresponding load change with respect to the expansion behavior that can be caused by the charge and discharge of the battery.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

An embodiment of the present invention is to provide a battery inspecting apparatus capable of effectively and stably inspecting and measuring changes in thickness and load generated when a battery is in an expansion behavior.

A battery inspecting apparatus according to one aspect of the present invention includes a base, a first plate positioned on the upper side of the base and movable in a vertical direction, a first plate positioned on the upper side of the first plate, A second plate on which a battery is seated between the first plate and the first plate, a pressing means for pressing the second plate toward the first plate, a second plate provided between the base and the first plate, And a distance measuring sensor for measuring a distance between the first plate and the second plate.

And a third plate positioned above the second plate and spaced apart from the base by a predetermined distance and having the pressing unit provided between the second plate and the second plate.

The first plate and the second plate are coupled to the coupling column so that the first plate and the second plate are movable in the vertical direction, and the third plate is coupled to the base, So as to be fixed to the coupling pillar.

The pressing means includes an elastic member compressed by the second plate and the third plate and the pressing force that the elastic member provides to the second plate in accordance with the set distance change of the third plate can be adjusted .

Further comprising an auxiliary plate located on the upper side of the third plate and having a fixed relative distance to the first plate and moving in the vertical direction in association with the first plate, The distance between the first plate and the second plate can be measured by measuring the distance between the plates.

Wherein the distance measuring sensor includes a distance measuring protrusion extending upward from the second plate and passing through the third plate and the auxiliary plate, wherein the distance measuring sensor measures a length of the distance measuring protrusion The distance between the first plate and the second plate can be measured.

The first plate is provided with a fixing member extending upward and the auxiliary plate is coupled to the fixing member so that the relative distance to the first plate can be fixed.

The fixing member may be provided on an edge side of the first plate and positioned outside the second plate and the third plate.

The second plate and the third plate may be formed with concave grooves on the side of the rim corresponding to the fixing member on which the fixing member is located.

The fixing members may be provided in pairs and may be provided at both ends of the first plate in the longitudinal direction, respectively.

The base part is provided with coupling pillars extending upward and passing through the first, second and third plates. The coupling pillars are formed in at least two rows along the longitudinal direction of the base part, The plate may extend between at least two rows of the plurality of coupling pillars, and the fixing member may be coupled to the one end and the other end, respectively.

The pressing means may be provided with a plurality of elastic members, and may be spaced apart from each other and disposed symmetrically with respect to the center of the second plate.

And a support portion for supporting a lower surface of the first plate at an upper portion of the load measurement sensor. The support portion may protrude toward the first plate to support the first plate.

And a battery fixing part may be mounted on the upper surface of the first plate and the lower surface of the second plate to fix the battery thereon.

According to the embodiments of the present invention as described above, it is possible to accurately measure the characteristics such as the thickness and the load change during the battery expansion behavior caused by charging and discharging, and can effectively and stably test and measure.

In addition, the structural stability and durability of the device for battery testing and measurement can be effectively improved.

1 is a view showing a battery testing apparatus according to an embodiment of the present invention.
2 is a front view of a battery testing apparatus according to an embodiment of the present invention.
3 is a diagram illustrating a battery expansion state in a battery testing apparatus according to an embodiment of the present invention.
4 is a top view of a battery testing apparatus according to an embodiment of the present invention.
FIG. 5 is a view showing a supporting part and a load measuring center in a battery testing apparatus according to an embodiment of the present invention.
FIG. 6 is a view showing a support portion taken along line AA of FIG. 5, a load measuring sensor and a first plate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

In the present specification, duplicate descriptions are omitted for the same constituent elements.

Also, in this specification, when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, May be present. On the other hand, in the present specification, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that no other element exists in between.

Furthermore, terms used herein are used only to describe specific embodiments and are not intended to be limiting of the present invention.

Also, in this specification, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise.

Also, in this specification, the terms " comprise ", or " have ", and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Also, in this specification, the term 'and / or' includes any combination of the listed items or any of the plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

1 is a perspective view showing a battery testing apparatus 100 according to an embodiment of the present invention. In an embodiment of the present invention, a plurality of plates may be spaced apart from each other on a base 110, and a front view of the battery testing apparatus 100 is shown in FIG.

The embodiment of the present invention is characterized in that it comprises a base 110, a first plate 120 positioned on the upper side of the base 110 and movable in the up and down direction, A second plate 130 which is movable in the direction of the first plate 120 and in which the battery 90 is seated between the first plate 120 and the first plate 120, A load measuring sensor 160 provided between the base 110 and the first plate 120 for measuring a load transmitted from the first plate 120 and a load sensor 160 for measuring a load transmitted from the first plate 120, And a distance measuring sensor 170 for measuring a distance between the first plate 130 and the second plate 130.

The base portion 110 is positioned at the lower portion of the battery test apparatus 100 as shown in FIG. 1 to support other members. 1 and 2 show a planar base portion 110 as a preferred embodiment of the base portion 110. The cross sectional shape of the base portion 110 may be various shapes such as circular, elliptical and polygonal .

The first plate 120 is positioned on the upper side of the base portion 110 as shown in Figs. In the present invention, the longitudinal direction of the base portion 110 is defined as the X direction, the width direction of the base portion 110 is defined as the Y direction, and the up and down direction of the base portion 110 is defined as the Z direction. The first plate 120 is positioned on the upper side corresponding to the Z direction of the base portion 110.

The first plate 120 may be spaced apart from the base 110 by a predetermined distance so that a load measuring sensor 160 to be described later may be disposed. The second plate 130, the third plate 140, and the auxiliary plate 150, which will be described later, are also the same.

The second plate 130, the third plate 140, and the auxiliary plate 140 may be formed to have various cross-sectional shapes such as a circular shape and a polygonal shape as necessary, The plate 150 is also the same.

The first plate 120 is provided so as to be movable in the vertical direction (Z direction) with respect to the base unit 110, and is arranged such that the relative distance with respect to the base unit 110 is variable. FIG. 1 shows an embodiment of the present invention in which a first plate 120 is penetrated by a coupling pole 115 to be described later and is slidable along a coupling pole 115.

However, in addition to the coupling method using the coupling pillars 115, the first plate 120 may be movable in the vertical direction through a guard rail type member, and various methods may be suggested as needed.

The second plate 130 is positioned above the first plate 120 and is movable in the vertical direction. The battery 90 is seated between the first plate 120 and the first plate 120.

The second plate 130 may be spaced apart from the first plate 120 by a predetermined distance to form a space in which the battery 90 is seated. The battery 90 is disposed so that its upper and lower surfaces are in direct contact with the first and second plates or other members, and is disposed so that no empty space is left above and below the battery 90.

The second plate 130 is also vertically movable with respect to the first plate 120 so that the relative distance of the second plate 130 with respect to the base unit 110 is variable and thus the expansion behavior of the battery 90, The position is changed with reference to the Z direction according to the thickness change.

The battery 90 used in the battery testing apparatus 100 of the present invention may be provided in various types. For example, a rectangular secondary battery, a pouch type battery, a battery pack, or a plurality of batteries may be a battery module constituting a cluster.

The battery 90 can be charged and discharged, and the charging and discharging are repeated, and gas is generated therein, so that the so-called swelling phenomenon in which the internal pressure increases and the volume expands may occur.

When the swelling of the battery 90 occurs, the thickness of the battery 90 increases according to the expansion of the volume, and there is a load that causes the thickness to increase. The battery testing apparatus 100 of the present invention, Can be used to measure and test the occurrence of swelling and thus the thickness variation and the load variation.

The first plate 120 and the second plate 130 located on the upper and lower sides of the battery 90 in the embodiment of the present invention are arranged in the up and down direction so as to reflect a change in thickness due to occurrence of swelling of the battery 90 As shown in FIG.

On the other hand, the pressing means 135 presses the second plate 130 toward the first plate 120 side.

1, the pressing means 135 is composed of a plurality of elastic members, for example, springs, and various modifications such as using a hydraulic device in addition to the elastic members are possible.

The pressing means 135 presses the second plate 130 toward the first plate 120 and the first and second plates are movable in the vertical direction. 2 plate and the battery 90 are pressed toward the base portion 110 side.

The pressing means 135 allows the first and second plates and the battery 90 to closely contact each other in testing the battery 90 and transmits the load generated by the battery 90 to a load measuring sensor 160 , And can be used to set an initial load acting on the battery 90.

In particular, the initial pressing force (initial compression amount in the case of elastic member) of the pressing means 135 can be adjusted to form various test conditions, and a detailed description thereof will be described later.

The load measuring sensor 160 is provided between the base 110 and the first plate 120 and measures a load transmitted from the first plate 120. The type and the measuring method may be various .

The load measuring sensor 160 measures a load transmitted from the first plate 120 between the base 110 and the first plate 120 to measure a load generated in the swelling test of the battery 90 .

The distance measuring sensor 170 is provided to measure a distance between the first plate 120 and the second plate 130.

The first plate 120 and the second plate 130 are provided so as to be free to move up and down so that the increase in the thickness of the battery 90 in the swelling test of the battery 90 is Plate distance variation.

Therefore, in the embodiment of the present invention, the battery 90 is seated between the freely movable first and second plates, and when the thickness of the battery 90 is changed, the distance between the first and second plates To measure the thickness increase amount.

The distance measuring sensor 170 may be provided in various shapes or modes. 1 and 2 illustrate a mechanical distance measuring sensor 170 for measuring the distance between the first and second plates due to the height change of the distance measuring protrusion 172 provided on the second plate 130. However, For example, an optical sensor type or the like, and another type of mechanical type is also possible.

FIG. 3 is a schematic view showing a state where swelling occurs in the battery 90 in the battery testing apparatus 100 shown in FIG. 2. In the battery testing apparatus 100 according to the embodiment of the present invention, the battery 90 The thickness and the load measuring method of the battery 90 according to the swelling test of the battery 90 will now be described with reference to FIG.

When the battery 90 is repeatedly charged and discharged, swelling may occur. When the swelling of the battery 90 occurs, the thickness of the battery 90 increases and a load that causes an increase in thickness is applied.

When the thickness of the battery 90 is increased with respect to the Z direction, the height of the top of the battery 90 is increased from the first plate 120, which is supported by the load sensor 160, The second plate 130 is pressed to be moved upward.

On the other hand, at the upper portion of the second plate 130, the pressing means 135 provides an increased pressing force toward the second plate 130 by the lifting force of the second plate 130, And the lowering force acts on the lower load 120 as a downward force. The lower load is measured as a change in the load measured by the load measuring sensor 160.

On the other hand, the amount of increase in the thickness of the battery 90 is represented by a distance change amount between the first and second plates as described above. The distance change amount is measured by the distance measurement sensor 170, .

As described above, according to the embodiment of the present invention, since the amount of change in the thickness of the battery 90 and the generated load can be measured and analyzed according to the degree of occurrence of swelling and the degree of swelling generated according to the progress of the endurance of the battery 90, It is possible to effectively perform the test for the swelling behavior of the piston 90 such as the swelling.

1 to 3, the third plate 140 is positioned above the second plate 130, is spaced apart from the base 110 by a predetermined distance, and the second plate 130, The pressing means 135 may be provided between the pressing means 135 and the pressing means 135.

Unlike the first and second plates, the third plate 140 is not movable in the vertical direction with respect to the base unit 110. That is, the third plate 140 is provided such that the relative distance to the base 110 is fixed.

The pressing means 135 is provided between the third plate 140 and the second plate 130 so that the pressing means 135 can prevent the pressing of the third plate 140 when the upward force of the second plate 130 occurs, So that the reaction force of the upward force is fully transmitted to the second plate 130 side.

The first plate 120 and the second plate 130 are coupled to the coupling pillars 115 so as to be movable in the vertical direction. And the third plate 140 may be coupled to the coupling column 115 to be fixed at a position spaced apart from the base 110 by the predetermined distance.

As described above, the first plate 120 and the second plate 130 are vertically movable with respect to the base 110, and as shown in FIGS. 1 to 3, And may be presented as a structure that is slidably coupled to the column 115.

The coupling pillar 115 has a shape extending upward from the base 110 and may have various shapes such as a circular shape and a polygonal shape.

The first, second, and third plates may have through-holes that are penetrated by the coupling pillars 115 to be coupled to the coupling pillars 115. The first and second plates may have coupling pillars 115, So that sliding in the Z direction is possible.

The first, second and third plates are easily aligned in parallel with the base 110 through the coupling by the coupling pillars 115, and in particular, in the case of the first and second plates, Direction) and the width direction (Y direction) is limited, but a structure capable of moving in the vertical direction (Z direction) can be easily implemented.

However, in the case of the third plate 140, a stopper may be formed on the coupling column 115 so as to restrict the movement in the Z direction, or may be fixed using a bolt structure, .

The third plate 140 may be fixed at a predetermined distance from the base 110 in relation to the base 110. The predetermined distance may be a size of the load measuring sensor 160, And the initial thickness of the battery 90, and may be set to adjust the initial pressing force by the pressing means 135 in particular.

For example, in the case where the pressing means 135 having a predetermined initial pressing force is provided, the setting distance of the third plate 140 is determined while the pressing means 135 is further pressed toward the second plate 130, It is possible to control the pressing force by the pressing member 135.

The pressing unit 135 includes an elastic member compressed by the second plate 130 and the third plate 140 and the elastic member may be elastically deformed by the setting distance change of the third plate 140 The pressing force applied to the second plate 130 can be adjusted.

Specifically, the pressing means 135 may be provided as an elastic member that provides an elastic force corresponding to the amount of compression as the pressing force, as one of various embodiments.

In the case of such an elastic member, the initial compression amount is determined according to the set distance of the third plate 140. By this, the initial pressing force acting on the battery 90 in the test of the battery 90 is adjusted, Can be implemented.

For example, when the initial pressing force by the pressing means 135 composed of an elastic member is set to 0 (the amount of compression of the elastic member is 0), there is no pressing force that affects the thickness change of the battery 90 and the load change, The values measured by the distance measuring sensor 170 and the load measuring sensor 160 may form a proportional relationship with each other.

If the initial pressing force is set to a very large value by the pressing means 135, the pressing force transmitted from the first plate 120 to the load measuring sensor 160 already has a very high value, Even if the thickness of the battery 90 changes, the amount of change in load is relatively small.

On the other hand, when the initial pressing force by the pressing means 135 is set to a negative value (a sufficient distance is set between the elastic member and the first plate 120 or the elastic member is removed), the pressing means 135 Since the load of the battery 90 is not transmitted to the load measuring sensor 160 side, the change in thickness of the battery 90 is measured but the load change is not measured.

As described above, it is advantageous to test the battery 90 by implementing various test conditions by adjusting the set distance of the third plate 140 or adjusting the pressing force of the pressing means 135.

In the embodiment of the present invention, an auxiliary plate (not shown) is disposed on the upper side of the third plate 140 and is movable in the vertical direction in association with the first plate 120, The distance measuring sensor 170 may measure the distance between the auxiliary plate 150 and the second plate 130 to measure the distance between the first plate 120 and the second plate 130, Can be measured.

The distance measurement between the first and second plates through the distance measuring sensor 170 of the present invention can be measured in various manners. However, a battery 90 is seated between the first and second plates, The sensor 135 and the load measuring sensor 160 may be provided to limit the distance measuring sensor 170 that directly measures the distance between the first and second plates.

Instead of measuring the distance between the first and second plates, the distance between the first plate and the second plate may be measured to calculate the distance between the first plate and the second plate or the thickness variation of the battery 90 Can be considered.

However, when the second plate 130 moves upward due to expansion of the battery 90, the first plate 120 moves toward the load measuring sensor 160, and the downward movement of the first plate 120 The downward movement of the first plate 120 can be controlled by the upward movement of the second plate 130 and the downward movement of the first plate 120 by the upward movement of the second plate 130, It is a somewhat complicated process to calculate the thickness variation of the battery 90 by measuring.

The distance measuring sensor 170 for measuring the distance between the first and second plates can be easily provided without any spatial / structural limitation, and it is possible to easily measure or calculate the distance between the first and second plates, And may include an auxiliary plate 150 for performing and such an embodiment is shown in Figures 1-3.

Specifically, the auxiliary plate 150 is positioned on the upper side of the third plate 140 and shares displacement with the first plate 120. That is, the auxiliary plate 150 is vertically movable relative to the base 110 in cooperation with the first plate 120.

The auxiliary plate 150 may be coupled to the coupling column 115 or may be separated from the auxiliary plate 150 to transmit the displacement from the first plate 120, And may be interlocked with the plate 120.

As the first plate 120 moves up and down together with the auxiliary plate 150, a change in the distance between the first and second plates has the same value as the change in distance between the auxiliary plate 150 and the second plate 130.

Accordingly, when the distance measurement sensor 170 synchronizes the distance value between the first plate 150 and the second plate 130 at the initial stage of the test with a distance value between the first and second plates, The distance between the first plate 150 and the second plate 130 can be measured to measure or derive the distance between the first plate and the second plate. (It is possible to measure the amount of distance change between the first and second plates even if the initial value synchronization of the distance measuring sensor 170 is not performed).

As described above, the embodiment of the present invention includes the auxiliary plate 150 interlocked with the first plate 120, so that the first and second plates 120, The distance between the plates can be measured simply and accurately.

The distance measuring sensor 170 may include a distance measuring protrusion 172 extending upward from the second plate 130 and passing through the third plate 140 and the auxiliary plate 150, And the distance measuring sensor 170 may measure the distance between the first plate 120 and the second plate 130 through the protruding length of the distance measuring protrusion 172 through the auxiliary plate 150 ) Can be measured.

As described above, the distance measuring sensor 170 may be provided in various types and methods, and one embodiment of the present invention may include a distance measuring projection 172 (see FIG. 1) extending from the second plate 130 for realizing a simple and accurate sensor, ), And the distance measuring sensor 170 is shown in FIGS. 1 to 3.

The distance measuring protrusion 172 is provided on the second plate 130 and extends upward from the upper surface of the second plate 130 to penetrate the third plate 140 and the auxiliary plate 150. The distance measuring sensor 170 measures the distance between the auxiliary plate 150 and the second plate 130 or the distance between the first plate 150 and the second plate 130 through the protruding length of the distance measuring protrusion 172 protruding through the auxiliary plate 150. [ As a distance.

3, when the distance between the first and second plates is increased, the protrusion length of the distance measuring protrusion 172 is reduced by the lowering of the auxiliary plate 150 and the rising of the second plate 130, And when the distance between the first and second plates decreases, the projecting length decreases in the opposite manner.

It is possible to measure the distance and the distance variation between the first and second plates with an accurate value simply and effectively through the auxiliary plate 150 and the distance measuring projection 172 as described above.

In an embodiment of the present invention, the first plate 120 is provided with a fixing member 152 extending upward and the auxiliary plate 150 is coupled to the fixing member 152, The relative distance with respect to the base 120 can be fixed.

An embodiment of the present invention can be applied to the auxiliary plate 150 and the first plate 120 by using the fixing member 152 extending upward from the first plate 120, The plate 150 is interlocked.

1 to 3, the fixing member 152 is provided on the first plate 120 and has a length in the Z direction. The first plate 120 and the auxiliary plate 150 are coupled to the fixing member 152. The first plate 120 and the auxiliary plate 150 may be fixed to both ends of the fixing member 152, have.

When the first plate 120 moves upward and downward, the auxiliary plate 150 moves up and down by the displacement of the first plate 120 by the fixing member 152, The auxiliary plate 150 can be used for the distance measurement between the first and second plates.

1 to 3, the fixing member 152 is provided on the edge side of the first plate 120 and is positioned outside the second plate 130 and the third plate 140.

According to various embodiments of the present invention, the fastening member 152 may be provided at various positions, but the structure of the present invention in which the coupling pillars 115, the battery 90 and the pressing means 135 are disposed as described above The fixing member 152 may be provided on the side of the rim of the first plate 120 for the purpose of spatial utilization.

Specifically, the fixing member 152 may protrude upward from the upper surface side of the first plate 120, or may protrude upward from the side surface of the first plate 120. 1 to 3, the fixing member 152 extends upward from the first plate 120 and passes through the outside of the second and third plates.

Accordingly, one embodiment of the present invention utilizes the inner space of each plate so that the pressing means 135, the coupling protrusions, the battery 90, the distance measuring sensor 170, and the load measuring sensor 160 are located, It is possible to effectively provide a fixing member 152 for interlocking the plate 120 and the auxiliary plate 150.

4 is a top plan view of a battery testing apparatus 100 according to an embodiment of the present invention, and a concave groove 154 provided in a third plate 140 is shown. The concave groove 154 may also be provided in the second plate 130, which can be seen in FIG.

In an embodiment of the present invention, the fixing member 152 may pass through and may form a concave groove 154 on the edge side of the second and third plates. The concave groove 154 may be formed in a shape such that a portion corresponding to the fixing member 152 of the outer periphery of the second and third plates is depressed toward the center and preferably has a shape corresponding to the end face of the fixing member 152 Lt; / RTI >

The mechanical stability of the apparatus for testing the swelling of the battery 90 is important due to the initial pressing force and the load generated when the battery 90 is expanded. An embodiment of the present invention is characterized in that the fixing member 152 and the concave groove 154 through which the fixing member 152 passes are formed on the second and third plates, 154) to stably maintain the alignment state between the first, second, and third plates.

In other words, the pressing force of the pressing means 135 and the load of the battery 90 may unintentionally cause the alignment state of the second and third plates to be reversed. In this case, It is possible to suppress the disengagement of the plate through the through hole 154.

2 to 3, the fixing members 152 may be provided at both ends of the first plate 120 in the longitudinal direction.

The first plate 120 and the auxiliary plate 150 may have a length in the X direction like the base 110. It is structurally most simple and stable that both ends in the longitudinal direction are fixed to each other.

Accordingly, in the embodiment of the present invention, the fixing member 152 is provided at both end portions in the longitudinal direction (X direction) of the first plate 120, and the first plate 120 and the auxiliary plate 150 have mutually opposite ends Thereby realizing a stable bonding structure.

4, in one embodiment of the present invention, the coupling columns 115 are formed in a plurality of rows, and at least two rows are formed along the longitudinal direction of the base 110, and the auxiliary plate 150, May extend between at least two rows of the plurality of coupling columns 115, and the fixing member 152 may be coupled to one end and the other end, respectively.

In an embodiment of the present invention, the base portion 110 and the first, second, and third plates form a mutual coupling relationship by the coupling pillars 115. In order to improve the structural stability, the coupling pillars 115 And may be provided in a plurality of rows to form at least two rows.

One row is made up of at least two coupling pillars 115 and the alignment direction of the columns may be parallel to the X direction which is the longitudinal direction of the base portion 110.

Preferably, the two rows may be spaced apart from each other in the width direction of the base portion 110, and the battery testing device 100 may be configured such that the pressing force and the load of the battery 90 cause a torsion or warpage, The embodiment of the present invention can provide the coupling pillars 115 at the corners of each plate to improve the structural stability.

4, the auxiliary plate 150 coupled with the fixing members 152 located at both ends of the first plate 120 in the lengthwise direction has an X (X) between two rows formed by the plurality of coupling pillars 115, So that it is possible to form a coupling relationship with the fixing member 152 without interference with the plurality of coupling pillars 115 to improve the structural stability.

4, in an embodiment of the present invention, the pressing unit 135 is formed of a plurality of elastic members, and is spaced apart from each other and disposed symmetrically with respect to the center of the second plate 130 .

The plurality of elastic members may be arranged point-symmetrically or line-symmetrically with respect to the center point of the second plate 130. As a result, they are not disposed at the center of the second plate 130 because they have the symmetrical structure in a state of being spaced apart from each other.

As a result, when the pressing force is applied to the center of the second plate 130, the amount of deformation of the second plate 130 can be smaller than the amount of flexure or bending deformation occurring at the end of the second plate 130, Can be formed more uniformly. In Fig. 4, the pressing means 135 constituted by the plurality of elastic members is indicated by a dotted line.

5 illustrates a support unit 180 and a load measurement sensor 160 according to an embodiment of the present invention. In FIG. 6, the support unit 180 and the load measurement sensor 160 shown in FIG. And a cross section of the first plate 120 positioned on top of the support 180. As shown in FIG.

5, a support 180 supporting the lower surface of the first plate 120 may be further provided on the upper portion of the load measurement sensor 160, and the support 180 Can support the first plate 120 by projecting the rim 182 of the upper surface toward the first plate 120.

The support 180 is positioned between the first plate 120 and the top of the load measurement sensor 160. The support 180 may be provided as part of the first plate 120 or the load measuring sensor 160.

The support portion 180 directly contacts the lower surface of the first plate 120 to support the first plate 120. In one embodiment of the present invention, the rim portion 182 of the support portion 180 contacts the center portion 181, So that the first plate 120 is supported.

The load applied to the first plate 120 by the pressurizing means 135 and the battery 90 with the swelling is applied to the first plate 120 and the load measuring sensor 160 measures the load acting on the first plate 120 The first plate 120 to which a high load acts may be bent or bent due to the load as shown in FIG. 6 due to the test characteristics of the battery 90.

This amount of bending deformation can be related to the number of supporting points. For example, it is preferable that the support points are formed at a plurality of points of the first plate 120, rather than a single support point is formed at the center of the first plate 120, Can be reduced.

Referring to FIG. 6, there is schematically shown the result that the amount of bending deformation on the end side due to the effect of bending deformation generated between the two support points in the first plate 120 is reduced.

6, the rim 182 may be protruded such that a stepped shape is formed on the upper surface of the support 180, so that the first plate 120 is supported by at least two support points So that the amount of deflection or the amount of bending deformation generated at both ends of the first plate 120 in the longitudinal direction (X direction) can be effectively reduced.

2 to 3, an embodiment of the present invention includes a battery fixing unit 190 (see FIG. 2) in which a battery 90 is mounted and fixed on a top surface of a first plate 120 and a bottom surface of a second plate 130, ).

The battery testing apparatus 100 according to the present invention is intended for various types of batteries 90. Since each battery 90 has a different shape and a stable fixing of the battery 90 is required do.

Accordingly, in an embodiment of the present invention, a battery fixing part 190 having a shape determined according to various batteries 90 is provided on the first plate 120 and the second plate 130, respectively, So that it is possible to perform stable testing of various batteries 90. [

Meanwhile, a charging / discharging cable may be provided between the first plate 120 and the second plate 130, and the charging / discharging cable may be connected to the battery 90 to charge / discharge the battery 90.

The charge / discharge cable may extend from the external power source and be electrically connected to the electrode terminal of the battery 90, and may be provided between the first plate 120 and the second plate 130, And the second plate 130 may be provided with grooves or grooves formed in the second plate 130 or may be connected to the battery fixing unit 190 and the battery fixing unit 190 may be connected to the electrode terminals of the battery 90. [ A discharge terminal may be provided.

In an embodiment of the present invention, the thickness and pressure change of the battery 90 can be confirmed in real time while charging or discharging the battery 90 using the charge / discharge cable.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

90: Battery 100: Battery test device
110: base portion 115: coupling pole
120: first plate 130: second plate
135: pressing means 140: third plate
150: auxiliary plate 152: fixing member
154: concave groove 160: load measuring sensor
170: distance measuring sensor 172: distance measuring projection
180: Support portion 181:
182: rim portion 190: battery fixing portion

Claims (14)

A base portion;
A first plate positioned above the base and movable in a vertical direction;
A second plate positioned above the first plate and movable in a vertical direction, the battery being seated between the first plate and the first plate;
A pressing means for pressing the second plate toward the first plate;
A load measuring sensor provided between the base and the first plate for measuring a load transmitted from the first plate; And
And a distance measuring sensor for measuring a distance between the first plate and the second plate. The method according to claim 1,
And a third plate positioned above the second plate and fixed with a predetermined distance from the base, the third plate being provided with the pressing means between the second plate and the second plate. The method of claim 2,
The base portion is provided with a coupling column projecting upward,
Wherein the first plate and the second plate are coupled to the coupling pillars so as to be movable in the vertical direction,
And the third plate is coupled to the coupling post so as to be fixed at a position spaced apart from the base by the predetermined distance. The method of claim 3,
Wherein the pressing means includes an elastic member compressed by the second plate and the third plate, and the elastic member includes a battery test in which a pressing force to be provided to the second plate is adjusted in accordance with the change in the set distance of the third plate Device. The method of claim 2,
Further comprising: an auxiliary plate located above the third plate, the auxiliary plate having a fixed relative distance to the first plate and moving in the vertical direction in association with the first plate;
Wherein the distance measuring sensor measures a distance between the first plate and the second plate by measuring a distance between the auxiliary plate and the second plate. The method of claim 5,
The distance measuring sensor includes a distance measuring protrusion extending upward from the second plate and passing through the third plate and the auxiliary plate,
Wherein the distance measuring sensor measures the distance between the first plate and the second plate through a length of the distance measuring protrusion protruding through the auxiliary plate. The method of claim 5,
The first plate is provided with a fixing member extending upward,
Wherein the auxiliary plate is coupled to the fixing member and the relative distance to the first plate is fixed. The method of claim 7,
Wherein the fixing member is provided on an edge side of the first plate and is located outside the second plate and the third plate. The method of claim 8,
Wherein the second plate and the third plate have concave grooves on the side of the rim corresponding to the fixing member on which the fixing member is disposed. The method of claim 8,
Wherein the fixing members are provided in pairs and are provided at both ends of the first plate in the longitudinal direction, respectively. The method of claim 10,
The base portion is provided with coupling pillars extending upward and passing through the first, second, and third plates,
Wherein the coupling pillars are formed in at least two rows along a longitudinal direction of the base portion,
Wherein the auxiliary plate extends between at least two rows of the plurality of coupling columns and the fixing member is coupled to one end and the other end of the auxiliary plate, respectively. The method according to claim 1,
Wherein said pressing means is provided with a plurality of elastic members and is spaced apart from each other and arranged symmetrically with respect to the center of said second plate. The method according to claim 1,
And a support for supporting a lower surface of the first plate at an upper portion of the load measuring sensor,
Wherein the supporting portion is protruded toward the first plate so as to support the first plate. The method according to claim 1,
And a battery fixing part for fixing and fixing the battery to the upper surface of the first plate and the lower surface of the second plate.

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