WO2024043412A1

WO2024043412A1 - Battery short inspection device

Info

Publication number: WO2024043412A1
Application number: PCT/KR2022/020106
Authority: WO
Inventors: 손영대
Original assignee: 주식회사 와이디시스템
Priority date: 2022-08-25
Filing date: 2022-12-12
Publication date: 2024-02-29
Also published as: KR102493137B1

Abstract

Disclosed is a battery short inspection device. The disclosed battery short inspection device comprises: a first short inspection unit in contact with the lower part of a battery; and a second short inspection unit in contact with the upper part of the battery, wherein the second short inspection unit can move up and down with respect to the first short inspection unit, and the first short inspection unit moves vertically from a first position, spaced apart from a plurality of terminals protruding from the side of the battery, to a second position, at which the first short inspection unit sequentially contacts the plurality of terminals.

Description

Battery short inspection device

The present disclosure relates to a battery short test device with improved short test efficiency and accuracy.

Convenient devices that utilize electricity as a power source, such as portable electronic products and electric vehicles, are developing. Convenience devices that use electricity as a power source use batteries that store electricity as a power source to increase portability, and the importance and demand for batteries are increasing significantly.

Batteries are core components and are built into electronic devices, and failure or defects in these batteries have a significant impact on electronic devices, so the importance of inspection of manufactured batteries is increasing.

In particular, recently, pouch-type batteries in which multiple battery cells are stacked have been used for high energy density and ease of heat management. These stacked batteries are used not only for short inspection of each battery cell, but also for the stacked battery. Short inspection is also required.

However, since the terminals of a single battery cell are stacked, a stacked battery has terminals on each layer, and there is a need for a device that performs accurate and efficient short inspection of the structure in which these terminals are stacked. It is increasing.

The present disclosure aims to provide a battery short test device with improved short test efficiency and accuracy.

The present disclosure for achieving the purpose of the present disclosure includes a first short inspection unit in contact with the bottom of the battery and a second short inspection unit in contact with the top of the battery, and the second short inspection unit moves up and down with respect to the first short inspection unit. It is possible, and the first short inspection unit provides a battery short inspection device that moves vertically from a first position arranged to be spaced apart from a plurality of terminals protruding on the side of the battery to a second position in sequential contact with the plurality of terminals. can do.

The first short inspection unit includes a first contact portion on which the battery is seated and a first guide portion disposed on both sides of the first contact portion centered on the first contact portion, and the first guide portion selectively contacts a plurality of terminals of the battery to control the battery. It has a short measuring unit that performs a short test, and the short measuring unit can perform a short test of the battery while moving from the bottom to the top of the plurality of terminals of the battery.

It further includes a frame for fixing the first shot inspection unit and the second shot inspection unit, wherein the first guide part is fixed to the frame and includes a first driving unit that moves the shot measurement unit in the first direction, and a second guide unit that moves the shot measurement unit in the first direction. A second driving part that moves in two directions, a connection part that is disposed between the short measuring part and the second driving part and connects the short measuring part and the second driving part, and a connection part that seats the second driving part, and is arranged between the first driving part and the second driving part. It includes a first rail unit connecting the first driving unit and the second driving unit, and the short measuring unit may have a short surface that contacts a plurality of terminals of the battery and allows current to flow.

The connection unit includes a first connection unit connected to the second drive unit and extending to the side of the second drive unit and including a display unit that displays the movement state of the shot measurement unit in the second direction, connected to the first connection unit, and extending from the first connection unit to the lower part. It includes a second connection part extending in a direction and a third connection part extending in a second direction from the second connection part and connected to the short measuring part, and the first contact part is arranged extending on the side to form a movement space in which the short measuring part moves. It includes a first protrusion, and the second short inspection portion includes a second contact portion disposed to face the first contact portion and a second guide portion disposed on both sides of the second contact portion with the second contact portion as the center. The second guide portion includes , an interference part that limits the vertical movement distance of the short measurement unit, a third driving part that moves the interference part in the vertical direction, and a support part disposed between the interference part and the third driving part and connecting the interference part and the third driving part; , the support part may have a second rail part seated on the support part and connected to the third driving part by rail, and the interference part may include an insulating material and have an interference surface disposed on the lower surface.

It further includes a processor connected to the first short inspection unit and the second short inspection unit and controlling the first short inspection unit and the second short inspection unit, wherein the processor determines whether the battery is seated on the first contact unit and the second contact unit is in contact with the battery. After detection, the second guide part is controlled to move the support part and the interference part downward so that the interference surface is located above the plurality of terminals of the battery, and the second drive part is controlled to move the short measurement part in the second direction, The first driving unit is controlled to move the short measuring unit in the first direction, and while the short measuring unit is moving in the second direction, current is passed through the short surface in contact with a plurality of terminals of the battery to determine whether the battery is short-circuited. You can.

The efficiency and accuracy of short-circuit testing, which is essential in the battery (secondary cell) manufacturing process, can be improved.

1 is a perspective view showing a battery short inspection device according to an embodiment of the present disclosure.

Figure 2 is a side view showing a battery short inspection device according to an embodiment of the present disclosure.

Figure 3 is an enlarged view showing area A of Figure 2.

Figure 4 is a side view showing a first short inspection unit and a second short inspection unit according to an embodiment of the present disclosure.

Figure 5 is a perspective view showing a first short inspection unit according to an embodiment of the present disclosure.

Figure 6 is a top view showing a first short inspection unit according to an embodiment of the present disclosure.

Figure 7 is a perspective view showing one first guide unit according to an embodiment of the present disclosure.

Figure 8 is a side view showing a second short inspection unit according to an embodiment of the present disclosure.

Figure 9 is a lower perspective view showing a second short inspection unit according to an embodiment of the present disclosure.

Figure 10 is a side view showing one second guide unit according to an embodiment of the present disclosure.

Figure 11 is a perspective view showing a battery according to an embodiment of the present disclosure.

Figure 12 is a side view showing a state in which the first short inspection unit and the second short inspection unit are in contact with the battery.

FIG. 13 is a side view showing a state in which the interference portion in FIG. 12 is moved downward.

Figure 14 is a side view showing a state in which the short inspection unit is moved in the second direction.

Figures 15 and 16 are side views showing a state in which the short inspection unit is moved in the first direction.

In order to fully understand the configuration and effects of the present disclosure, preferred embodiments of the present disclosure will be described with reference to the attached drawings. However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various forms and various changes may be made. However, the description of the present embodiments is provided to ensure that the present disclosure is complete and to fully inform those skilled in the art of the present disclosure of the scope of the invention. In the attached drawings, the components are enlarged in size for convenience of explanation, and the proportions of each component may be exaggerated or reduced.

When a component is described as being “on” or “adjacent to” another component, it should be understood that it may be in direct contact with or connected to the other component, but that another component may exist in between. something to do. On the other hand, when a component is described as being “right on” or “in direct contact” with another component, it can be understood that there is no other component in the middle. Other expressions that describe relationships between components, such as “between” and “directly between” can be interpreted similarly.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms may be used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may be referred to as a first component without departing from the scope of the present disclosure.

Singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as “comprises” or “has” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, including one or more other features or numbers, It can be interpreted that steps, operations, components, parts, or combinations of these can be added.

Unless otherwise defined, terms used in the embodiments of the present disclosure may be interpreted as meanings commonly known to those skilled in the art.

Hereinafter, with reference to FIGS. 1 to 11, a battery short circuit inspection device 1 according to an embodiment of the present disclosure will be described.

FIG. 1 is a perspective view showing a battery short inspection device 1 according to an embodiment of the present disclosure, FIG. 2 is a side view showing the battery short inspection device 1 according to an embodiment of the present disclosure, and FIG. 3 is a FIG. 2 is an enlarged view showing area A, Figure 4 is a side view showing the first short inspection unit 100 and the second short inspection unit 200 according to an embodiment of the present disclosure, and Figure 5 is an embodiment of the present disclosure. It is a perspective view showing the first short inspection unit 100 according to, Figure 6 is a top view showing the first short inspection unit 100 according to an embodiment of the present disclosure, and Figure 7 is a perspective view showing the first short inspection unit 100 according to an embodiment of the present disclosure. is a perspective view showing the first guide unit 120, Figure 8 is a side view showing the second short inspection unit 200 according to an embodiment of the present disclosure, and Figure 9 is a second shot inspection unit 200 according to an embodiment of the present disclosure. It is a lower perspective view showing the inspection unit 200, Figure 10 is a side view showing one second guide part 220 according to an embodiment of the present disclosure, and Figure 11 is a battery (B) according to an embodiment of the present disclosure. This is a perspective view showing .

The battery short inspection device (1) is a device that checks whether there is an abnormality in the flow of current inside the battery (B) by physically contacting the manufactured battery (B) and then passing current to the contacted battery (B). .

Here, when referring to FIG. 11, the battery (B) may generally be referred to as a secondary battery, and the battery (B) may include a pouch-type battery (B). In addition, a plurality of terminals BT may be disposed on the side of the battery B for charging and discharging the battery B.

The battery short inspection device 1 includes a first short inspection section 100 disposed below the battery B, a second short inspection section 200 disposed above the battery B, and a first short inspection section 100. It may include a frame 10 for fixing the second short inspection unit 200.

The frame 10 can fix various mechanical components to the battery short inspection device 1, such as the first short inspection unit 100, the second short inspection unit 200, and the weight measurement unit 40. Specifically, the frame 10 can arrange the first short inspection unit 100 and the second short inspection unit 200 vertically, and the second short inspection unit 200 is fixed to the frame 10 to form the second short inspection unit 200. You can move up and down about (200).

The first short-circuit test unit 100 may selectively contact the seated battery B at the same time as the manufactured battery B is seated to perform a short-circuit test on the battery B.

For example, the first short inspection unit 100 is configured to sequentially contact the plurality of terminals BT at a first position spaced apart from the plurality of terminals BT protruding on the side of the battery B. Short inspection can be performed by moving vertically to the desired position. The first short test unit 100 may perform a short test by contacting the plurality of terminals BT protruding from the side of the battery B while sweeping the terminals BT from the bottom to the top.

The first short inspection unit 100 includes a first contact unit 110 on which the battery B is seated and a first guide unit 120 disposed on both sides of the first contact unit 110 centered on the first contact unit 110. may include.

The first contact portion 110 is disposed at the center of the first short inspection portion 100 and includes a first seating portion 111 on which the battery (B) is seated on the upper surface and a first seating portion (111) from the first seating portion 111. It may include a first protrusion 112 protruding from the side of 111).

That is, the first contact part 110 may include a first protrusion 112 extending on the side to form a movement space S in which the shot measuring part 121 moves.

In addition, the first contact portion 110 may include an insulating material to prevent current flowing inside the battery B from leaking when a short circuit is tested for the seated battery B. For example, the first contact part 110 may include elastic rubber or a polymer compound.

The first seating portion 111 may include a weight measurement surface 41 disposed at a preset interval at the center.

The weight measurement surface (41) can measure the weight of the seated battery (B) through the weight measurement unit (40) disposed at the bottom of the battery short inspection device (1), and is used to seat the battery (B). The weight measurement surface 41 can move up and down with respect to the first seating portion 111.

The first protrusion 112 may be disposed to protrude from the first seating portion 111 toward a pair of first guide portions 120 disposed on both sides of the first seating portion 111 . The first protrusion 112 may form a movement space (S) through which the pair of first guide parts 120 can move toward the battery (B).

The width of the moving space (S) may be larger than the width of the short inspection portion of the first guide portion 120 in consideration of the various sizes of the battery (B) for short inspection.

The first guide portion 120 may be composed of a pair disposed on both sides around the first contact portion 110. Since the pair of first guide parts 120 have the same structure, overlapping descriptions will be omitted, and the description will focus on one first guide part 120 of the pair of first guide parts 120.

Referring to FIG. 7, the first guide unit 120 selectively contacts a plurality of terminals (BT) of the battery (B) to perform a short test on the battery (B), a short measuring unit (121), and a frame ( 10) and a first driving unit 122 that moves the short measuring unit 121 in the first direction (D1), and moves the short measuring unit 121 in a second direction (D2) perpendicular to the first direction (D1). ), a second driving unit 124 that moves to the 2 The driving unit 124 is seated, and the first rail unit 123 is disposed between the first driving unit 122 and the second driving unit 124 and connects the first driving unit 122 and the second driving unit 124. It can be included.

The short measuring unit 121 may include a short surface 121a on a surface facing the battery B that contacts a plurality of terminals BT of the battery B and allows current to flow to the battery B. .

That is, the short measuring unit 121 may include a short surface 121a that contacts a plurality of terminals BT of the battery B and allows current to flow. The short surface 121a may include a conductive material through which current can flow. For example, the short surface 121a may include a metal material.

The short measurement unit 121 can move in the first direction (D1) through the first driving unit 122, which will be described later, and in the second direction (D2) perpendicular to the first direction (D1) through the second driving unit 124. ) can be moved to contact the plurality of terminals (BT) of the battery (B).

Here, the first direction D1 may refer to a vertical direction with respect to the ground, and the second direction D2 may refer to a horizontal direction parallel to the ground. In addition, based on FIG. 3, the first direction D1 may mean an up-down direction, and the second direction D2 may mean a left-right direction.

The short measurement unit 121 is connected to a current supply unit (not shown) that supplies current and can receive a preset current from the current supply unit through a process and transfer it to the battery (B).

Accordingly, the battery (B) seated on the first contact portion 110 has a short measuring portion 121 each included in the pair of first guide portions 120 with respect to the plurality of terminals BT disposed at both ends. It comes into contact with, and the processor can detect the flow of current transmitted from the short measurement unit 121 to check whether there is a short inside the battery (B) and check whether the battery (B) is defective.

In other words, the processor detects that the battery (B) is defective when current flows while the short measuring unit 121 is in contact with the plurality of terminals (BT) of the battery (B), and when the current does not flow or there is an abnormal change in the current value. It can be judged that

Likewise, the processor may determine that the battery B is normal when current flows while in contact with the plurality of terminals BT of the battery B and there is no change in the current value.

The first driving unit 122 is disposed on the frame 10 and includes a short measuring unit 121 and a first rail unit 123, a second driving unit 124, and a connection unit directly or indirectly connected to the short measuring unit 121. (125) can be moved in the first direction (D1).

Specifically, the first driving unit 122 may move the first rail unit 123 directly connected to the first driving unit 122 up and down with the first driving unit 122 as the center. The first driving unit 122 is connected to a driving source (not shown) that provides power and can move the first rail unit 123 up and down through the power received from the driving source.

Here, the driving source may include various energy sources, such as electrical energy and hydraulic energy, depending on need.

The first rail unit 123 includes a first driving unit 122 that moves the short measuring unit 121 in the first direction (D1) and a second driving unit that moves the short measuring unit 121 in the second direction (D2). It may be disposed between 124 to connect the first driving unit 122 and the second driving unit 124.

Specifically, the first rail unit 123 can slide up and down with respect to the first drive unit 122 through rail connection with the first drive unit 122.

In addition, the first rail portion 123 is formed integrally with the rail connection portion 123a and the rail connection portion 123a connected in a vertical direction to the first driving unit 122, and moves in a second direction (D2) with respect to the rail connection portion 123a. ) and may include a rail support portion 123b on which the second driving portion 124 is disposed.

The rail connection part 123a is arranged to contact the first driving part 122 in the vertical direction, so that stable movement in the first direction D1 can be implemented.

The rail support part 123b extends in the horizontal direction with respect to the rail connection part 123a and can seat the second driving part 124 that moves the short measurement part 121 in the second direction D2. Here, the first rail unit 123 has a second driving unit 124 disposed in the 'ㄴ'-shaped space formed by the vertically arranged rail connection part 123a and the horizontally arranged rail support part 123b. The second driving unit 124 can be stably supported in vertical and horizontal directions.

Accordingly, the second driving part 124 is moved in the first direction D1 by the first driving part 122, and while the length of the second driving part 124 itself is adjusted, the rail connecting part 123a and the rail It can be stably supported by the support portion 123b.

The second driving part 124 is disposed on the first rail connecting part 123a, and the connecting part 125 and the short measuring part 121 directly or indirectly connected to the second driving part 124 move in the second direction D2. You can do it.

Specifically, the second driving part 124 is connected to a driving source (not shown) that provides power, and the body part 124a and the body part 124a are supported by contacting the rail support part 123b and the rail connection part 123a. It may include an extension portion 124b disposed on the side whose length is adjusted from the body portion 124a.

The outer shape of the body portion 124a may have a shape complementary to that of the rail support portion 123b and the rail connecting portion 123a in order to stably contact the support portion 223 and the rail connecting portion 123a. For example, the body portion 124a may have a rectangular parallelepiped shape.

The elongated portion 124b may include a pillar whose length is adjustable, and whose length is adjusted with respect to the body portion 124a and is connected to the first connection portion 125-1 to connect the first connection portion 125-1 to the second connection portion 125-1. It can be moved in the direction (D2).

The connection unit 125 is disposed between the second driving unit 124 and the short measuring unit 121 and transmits the moving force from the first driving unit 122 and the second driving unit 124 to the short measuring unit 121. It can move in the first direction (D1) and the second direction (D2) together with the short measurement unit 121.

Specifically, the connection part 125 is connected to the second driving part 124 and is disposed to extend to the side of the second driving part 124, and is a display unit that displays the movement state of the short measuring part 121 in the second direction D2. A first connection part 125-1 including (125-1b), a second connection part 125- connected to the first connection part 125-1 and extending downward from the first connection part 125-1. 2) and a third connection part 125-3 extending from the second connection part 125-2 in the second direction D2 and connected to the short measurement unit 121.

Specifically, the first connection part 125-1 may be shaped to surround the front and side surfaces of the body part 124a of the second driving part 124.

For example, the first connection portion 125-1 is disposed to face the front of the body portion 124a and is integrated with the kidney connection portion 125-1a and the kidney connection portion 125-1a connected to the kidney portion 124b. It is formed and may include a display portion (125-1b) disposed perpendicular to the elongation connection portion (125-1a) to surround the side of the body portion (124a).

The extension connection part 125-1a may be connected perpendicularly to the extension part 124b in order to stably transmit the moving force transmitted by the extension part 124b of the second driving unit 124 whose length is adjusted.

The display unit 125-1b may be arranged to cover the side surface of the body portion 124a of the second driving unit 124. The length of the display portion 125-1b extending from the extension connection portion 125-1a may be shorter than the length of the body portion 124a of the second driving portion 124.

Accordingly, the area of the display unit 125-1b covering the body 124a becomes smaller as the second driving unit 124 extends in the second direction D2 around the body 124a. The degree of extension in the second direction D2 can be visually and intuitively indicated to an operator using the battery short inspection device 1 according to an embodiment of the disclosure.

For example, when the extension portion 124b of the second driving unit 124 does not extend from the body portion 124a, the display portion 125-1b covers the side of the body portion 124a and the user intuitively It can be seen that the extension portion 124b of the second driver 124 is not extended.

Likewise, when the extension portion 124b of the second driving unit 124 extends from the body portion 124a, the display portion 125-1b is partially spaced apart from the side of the body portion 124a in the second direction D2. state, and the user can intuitively see that the extension portion 124b of the second driving unit 124 is extended.

The second connection portion 125-2 may be disposed to contact the extension connection portion 125-1a of the first connection portion 125-1 and extend downward.

Specifically, the second connection portion 125-2 includes a vertical support portion 125-2b and a vertical support portion 125- disposed extending downward with respect to the extension connection portion 125-1a of the first connection portion 125-1. 2b) and may include a horizontal support portion (125-2a) that is formed integrally with the vertical support portion (125-2b) and extends in the horizontal direction with respect to the vertical support portion (125-2b).

Accordingly, the vertical support part 125-2b is arranged to extend in the downward direction, so that the horizontal support part 125-2a is the frame of the first driving part 122 in a state in which the first driving part 122 is not extended. It can be supported so that it is arranged on the same line in the horizontal direction as the frame 10 connection portion 125 connected to 10).

That is, the vertical support part 125-2b is connected to the short measuring part 121 through the third connecting part 125-3, and stably supports the short measuring part 121, which has a large weight and includes a conductive material. To this end, the short measuring unit 121, the horizontal support unit 125-2a, and the third connection unit 125-3 are connected to the frame 10 in a state in which the first driving unit 122 is not extended in the first direction D1. It can be maintained in a supported state by contacting one surface.

In addition, even when the first driving unit 122 extends upward and the short measuring unit 121 is spaced from one surface of the frame 10, the short measuring unit 121 can be stably supported in the horizontal direction.

That is, the vertical support part 125-2b and the horizontal support part 125-2a support the heavy short measuring part 121 structurally and stably, and at the same time, the short measuring part 121 also moves according to the movement of the first driving part 122. ) can be stably supported.

The third connection part 125-3 may be in contact with the vertical support part 125-2b and the horizontal support part 125-2a, and may physically connect the second connection part 125-2 and the short measuring part 121. You can.

The third connection part 125-3 may have a shape complementary to the 'ㄴ' shape of the vertical support part 125-2b and the horizontal support part 125-2a.

The second short inspection unit 200 may be connected to the frame 10 and may be movable up and down with respect to the first short inspection unit 100. The second short test unit 200 can stably fix the battery (B) for which a short test is to be performed together with the first short test part 100, and when the first short test test unit 100 performs a short test, the short circuit measuring part (121) can limit the distance it moves.

In addition, the second short inspection unit 200 is connected to the frame 10 and may include a pressing unit 30 that moves the second short inspection unit 200 up and down.

Specifically, the pressing unit 30 is connected to the second short inspection unit 200 and includes a pressure moving shaft 31 that stably guides the movement of the second short inspection unit 200 with respect to the frame 10, and a second short inspection unit. It may include a pressure driver 32 that moves the 200 up and down and simultaneously provides a preset pressure power to the battery B.

The second short inspection portion 200 includes a second contact portion 210 disposed to face the first contact portion 110 and a second guide portion disposed on both sides of the second contact portion 210 centered on the second contact portion 210. It may include (220).

The second contact part 210 may be arranged to face the first contact part 110, and when the second short inspection part 200 moves in the downward direction, the second contact part 210 is connected to the upper surface of the battery B. can be contacted.

The second contact portion 210 is disposed at the center of the second short inspection portion 200 and at the same time contacts the battery (B) with the second seating portion 211 and the second seating portion 211 from the second seating portion 211. It may include a second protrusion 212 protrudingly disposed on the side of.

That is, the second contact part 210 may include a second protrusion 212 extending on the side to form a movement space S in which the interference part 224 of the second guide part 220 moves.

In addition, the second contact portion 210 may include an insulating material to prevent current flowing inside the battery B from leaking when a short circuit is tested for the seated battery B. For example, the second contact portion 210 may include elastic rubber or a polymer compound.

The second guide unit 220 includes an interference unit 224 that limits the vertical movement distance of the short measuring unit 121, a third driving unit 221 that moves the interference unit 224 in the vertical direction, and an interference unit 224 that moves the interference unit 224 in the vertical direction. It may include a support part 223 that is disposed between the part 224 and the third driving part 221 and connects the interference part 224 and the third driving part 221.

The interference unit 224 is disposed above the plurality of terminals BT of the battery B disposed below, and when the third driving unit 221 moves the interference unit 224 downward, the interference unit 224 It may be disposed adjacent to the upper part of the plurality of terminals BT.

Accordingly, when the short measuring unit 121 moves from the bottom to the upper direction and sequentially contacts the plurality of terminals BT of the battery B, the interference unit 224 interferes with the short measuring unit 121. It is possible to prevent the short measuring unit 121 from moving upward excessively.

Here, the interference unit 224 may include an interference surface 224a that is disposed on the lower surface and includes an insulating material to prevent current from flowing. For example, the interference surface 224a may include rubber or a polymer compound.

Therefore, when the short circuit measurement unit 121 moves upward more than necessary and contacts any mechanical component of the battery short inspection device 1 to perform a short circuit test, the interference unit 224 may cause the current to be measured in any mechanical component. This may reduce the stability of the short test.

Accordingly, the interference unit 224 limits the moving distance of the short measurement unit 121 in the first direction D1 and at the same time ensures stability for short inspection because current does not flow even if it contacts the short measurement unit 121. You can add more.

The third driving unit 221 may provide power to selectively protrude the interference surface 224a from the lower surface of the second contact part 210 with respect to the second contact part 210 .

For example, when the interference surface 224a protrudes from the lower surface of the second contact part 210, the interference surface 224a is disposed adjacent to the plurality of terminals BT of the battery B and short measuring unit 121 ) movement can be restricted.

The support unit 223 is disposed between the interference unit 224 and the third driving unit 221 and can transmit the moving power in the first direction D1 generated by the third driving unit 221 to the interference unit 224. . Specifically, the support part 223 may have a second rail part 222 seated on the support part 223 and connected to the third driving part 221 by rail.

Accordingly, the second rail unit 222 can transmit the moving power transmitted from the third driving unit 221 to the interference unit 224 through the rail connection.

Meanwhile, the battery short inspection device 1 according to an embodiment of the present disclosure includes a weight measuring part 40 and a first contact part 110 that are disposed at the bottom of the battery B and measure the weight of the battery B. It may further include a sensor unit 50 disposed adjacent to the battery B to measure whether the battery B is seated, and a long side alignment device 20 to align the slight distortion of the seated battery B.

When the battery B is seated on the first contact portion 110, the long side alignment device 20 can perform fine alignment of the seated battery B. Here, the long side alignment device 20 may be coupled to the frame 10.

Hereinafter, with reference to FIGS. 12 to 16, the operation of the battery short inspection device 1 according to an embodiment of the present disclosure will be described.

FIG. 12 is a side view showing a state in which the first short inspection unit 100 and the second short inspection unit 200 are in contact with the battery (B), and FIG. 13 shows a state in which the interference unit 224 in FIG. 12 is moved downward. It is a side view, and FIG. 14 is a side view showing a state in which the short inspection unit is moved in the second direction (D2), and FIGS. 15 and 16 are side views showing a state in which the short inspection unit is moved in the first direction (D1).

The battery short inspection device 1 is connected to the first short inspection unit 100 and the second short inspection unit 200 and may include a processor that controls the first short inspection unit 100 and the second short inspection unit 200. You can.

Here, the processor is embedded within the battery short test device 1 and can control the overall operation of the battery short test device 1.

In addition, the processor may include one or more of a central processing unit (CPU), a controller, an application processor (AP), a communication processor (CP), or an ARM processor. there is.

First, as shown in FIG. 12, the processor can detect that the battery B is seated on the first contact part 110 and the second contact part 210 is in contact with the battery B. Here, the processor can determine whether the first contact part 110 of the battery B is seated through the sensor unit 50 disposed adjacent to the battery B.

Thereafter, as shown in FIG. 13, the processor controls the second guide part 220 to interfere with the support part 223 so that the interference surface 224a is located on the upper part of the plurality of terminals BT of the battery B. Part 224 can be moved in the downward direction.

That is, the processor can control the interference surface 224a to protrude from the lower surface of the second contact part 210.

Next, as shown in FIGS. 14 to 16, the processor controls the second driving unit 124 to move the short measuring unit 121 in the second direction D2, and then moves the first driving unit 122. The short measurement unit 121 can be controlled to move in the first direction D1.

Here, the processor moves the short measurement unit 121 in the horizontal first direction D1 to sequentially contact the plurality of terminals BT as it moves in the vertical direction. It can be moved in the second direction (D2), which is the vertical direction.

For example, when the short measuring unit 121 moves in the second direction D2, the short measuring unit 121 is adjacent to the plurality of terminals BT of the battery B and is connected to the plurality of terminals BT. It may be placed in a first position that is spaced apart from the bottom.

Here, the processor may be in a state where no current flows through the short measurement unit 121.

Next, the processor controls the first driving unit 122 to move the short measuring unit 121 upward at the first position disposed spaced apart from the lower portion of the plurality of terminals BT of the battery B. Among the plurality of terminals (BT) in (B), contact may be made sequentially from the plurality of terminals (BT) located at the lower part to the plurality of terminals (BT) located at the upper part.

That is, the processor controls the second driver 124 to move the short measurement unit 121 in the second direction D2, and then controls the first driver 122 to move the short measurement unit 121 to the first direction D2. It moves in the direction D1, and while the short measuring unit 121 moves in the second direction D2, current flows through the short surface 121a in contact with the plurality of terminals BT of the battery B. It is possible to determine in real time whether the battery (B) is short-circuited.

At this time, the processor can simultaneously perform a short test while sending current through the short measurement unit 121. That is, the short measurement unit 121 may perform a short test by sequentially contacting the plurality of terminals BT arranged up and down in the thickness direction of the battery B from the bottom to the top.

Accordingly, the battery short inspection device 1 according to an embodiment of the present disclosure moves from the bottom to the top in the battery B in which electronic cells composed of thin layers are stacked in plural, and the electronic cells of each thin layer are At the same time as performing a short test for electronic cells in a stacked structure, it is possible to simultaneously check for a short circuit in the stacked structure by moving from the bottom to the top.

That is, the battery short test device 1 according to an embodiment of the present disclosure operates by sequentially contacting a plurality of terminals BT while the short measurement unit 121 moves from the bottom to the top, thereby detecting a plurality of electronic cells. This stacked battery (B) can be sequentially inspected for electronic defects not only in the layers of each electronic cell but also between layers as it moves from the bottom to the top.

Therefore, the battery short inspection device 1 according to an embodiment of the present disclosure can efficiently perform a stable short inspection specialized for the stacked battery B and at the same time add structural stability to the short measurement unit 121. , the efficiency of inspection can be greatly improved by physically restricting the movement of the short measurement unit 121 through the interference unit 224.

In the above, various embodiments of the present disclosure have been described individually, but each embodiment does not necessarily have to be implemented alone, and the configuration and operation of each embodiment may be implemented in combination with at least one other embodiment. .

In addition, although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and the technical field to which the invention pertains without departing from the gist of the present disclosure as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present disclosure.

The presently disclosed embodiments relate to a battery short circuit inspection device with improved short circuit inspection efficiency and accuracy, and have high industrial applicability.

Claims

a first short inspection unit in contact with the bottom of the battery; and

It includes a second short inspection unit in contact with the top of the battery,

The second short inspection unit is capable of moving up and down with respect to the first short inspection unit,

A battery short inspection device in which the first short inspection unit moves in a vertical direction from a first position disposed to be spaced apart from a plurality of terminals protruding from a side of the battery to a second position in sequential contact with the plurality of terminals.
According to paragraph 1,

The first short inspection unit,

a first contact portion on which the battery is seated; and

A first guide portion disposed on both sides of the first contact portion centered on the first contact portion,

The first guide portion has a short measuring portion that selectively contacts a plurality of terminals of the battery to perform a short test on the battery,

A battery short test device wherein the short measuring unit performs a short test on the battery while moving from the bottom to the top of the plurality of terminals of the battery.
According to paragraph 2,

Further comprising a frame for fixing the first short inspection unit and the second short inspection unit,

The first guide part,

a first driving unit fixed to the frame and moving the shot measuring unit in a first direction;

a second driving unit that moves the short measuring unit in a second direction perpendicular to the first direction;

A connection part disposed between the short measuring part and the second driving part and connecting the short measuring part and the second driving part; and

A first rail unit seats the second driving unit, is disposed between the first driving unit and the second driving unit, and connects the first driving unit and the second driving unit,

The short measurement unit is a battery short inspection device having a short surface that contacts a plurality of terminals of the battery and allows current to flow.
According to paragraph 3,

The connection part is,

a first connection part connected to the second driving part and extending to a side of the second driving part and including a display part that displays a moving state of the shot measuring part in the second direction;

a second connection part connected to the first connection part and extending downward from the first connection part; and

It includes a third connection part extending from the second connection part in a second direction and connected to the short measuring part,

The first contact portion includes a first protrusion extending on the side to form a movement space in which the shot measuring unit moves,

The second short inspection unit,

a second contact portion disposed to face the first contact portion; and

It includes; a second guide portion disposed on both sides of the second contact portion centered on the second contact portion,

The second guide part,

An interference unit that limits the vertical movement distance of the short measurement unit;

a third driving unit that moves the interference unit in an upward and downward direction; and

It includes a support part disposed between the interference part and the third driving part and connecting the interference part and the third driving part,

The support part has a second rail part seated on the support part and connected to the third driving part by rail,

A battery short inspection device wherein the interference unit includes an insulating material and has an interference surface disposed on a lower surface.
According to clause 4,

It further includes a processor connected to the first short inspection unit and the second short inspection unit and controlling the first short inspection unit and the second short inspection unit,

The processor,

After the battery is seated on the first contact and the second contact is detected to be in contact with the battery,

Controlling the second guide unit to move the support unit and the interference unit downward so that the interference surface is positioned above the plurality of terminals of the battery,

Controlling the second driving unit to move the short measuring unit in the second direction, then controlling the first driving unit to move the short measuring unit in the first direction,

A battery short inspection device that passes current through a short surface in contact with a plurality of terminals of the battery while the short measuring unit moves in the second direction and determines whether the battery is short.