KR102328046B1 - Probe For Aging Secondary Battery - Google Patents

Abstract

The present invention relates to a probe for secondary battery aging, which includes: a shell (3) outputting a current supplied from a power source to a target battery; and a core (5) coupled side by side with the shell (3) in an insulation state and outputting a voltage supplied from the power source to the target battery. The part of the shell (3) in contact with an electrode (T) of the target battery is separable and replaceable. Accordingly, when secondary batteries are aged with the probe mounted on aging equipment, head or core replacement can be easily performed even in the event of damage such as wear at the output tip of the head or core of the shell attributable to electrical contact resistance generated in the case of current or voltage application to the electrode through the shell or core of the probe. Accordingly, the probe as a whole does not have to be discarded and aging can be performed in an economical and resource-saving manner.

Description

Secondary battery aging probe {Probe For Aging Secondary Battery}

The present invention relates to a probe for secondary battery aging, and more particularly, for the aging of a secondary battery, a head portion of a probe shell that contacts a secondary battery electrode and applies a current is detachable from the body, while applying a voltage to the electrode By making the probe core detachable from the shell body, it relates to a secondary battery aging probe capable of replacing the core and the shell head of the probe worn due to electrical contact resistance.

Recently, as the demand for secondary batteries has rapidly increased, various equipment necessary for the production of secondary batteries have been developed, and one of these equipment is an aging equipment that sufficiently disperses the electrolyte inside the battery so that the movement of ions can be optimized. Therefore, the aging equipment is activated by arbitrarily charging and discharging the secondary battery. To this end, the aging equipment requires an electrode, that is, a probe, which contacts the electrode of the secondary battery and applies the current and voltage supplied from the power source to the secondary battery. .

As an example of such a probe, a secondary battery charge/discharge test probe (Registration Patent No. 10-16888327) shown by reference numeral 101 in FIG. 1 may be cited. As shown in FIG. 1 , the probe 101 is composed of an external plunger 110 , an internal plunger 120 , and a head portion 130 , and when in contact with the electrode T for aging of the secondary battery First, the lower tip of the inner plunger 120 is in contact with the electrode T, and then the outer plunger 110 relative to the stopped inner plunger 120 moves downward relative to the head 130 and the probe protrusion 134. through the electrode (T). At this time, the head 130 can obtain a sufficient contact area even for the electrode T that is not flat by the helical elastic body 220 that is elastically movable relative to the bottom surface.

However, in the conventional probe 101 as described above, since the applied current or voltage value is very large, electrical contact resistance is greatly generated at the contact surface with the electrode T, and thus, the tip of the inner plunger in contact with the electrode T The part or the probe protrusion 134 is easily worn, and when the wear is severe, the contact with the electrode T is poor, and there is a problem in that the aging efficiency is greatly reduced.

In addition, there is a problem in that the replacement of the probe 101 is frequent in order to prevent a decrease in the aging efficiency as described above, thereby increasing the cost required for the aging operation, thereby reducing work productivity.

KR 10-1688327

The present invention has been proposed to solve the problems of the conventional probe as described above. In providing a probe for aging the secondary battery by applying a current and voltage to the secondary battery through the electrode, the probe is contacted to the electrode to apply the current. By forming the head of the probe shell in a structure detachable from the shell body, it is possible to easily replace the head of the shell worn out due to contact with the electrode, thereby reducing the cost compared to disposing of the entire probe and reducing waste of resources. The purpose is to prevent it.

Similarly, by mounting the probe core in contact with the electrode of the secondary battery in a detachable structure to the shell for the application of voltage, the probe core whose output tip is worn due to contact with the electrode can be easily replaced, so that the entire probe The purpose is to reduce the cost compared to discarding and to prevent wastage of resources.

In order to achieve this object, the present invention provides a shell for outputting current supplied from a power source to a target battery; and a core coupled to the shell in an insulated state and outputting a voltage supplied from a power source to the target battery; the shell is replaced by separating a portion in contact with the electrode (T) of the target battery Provided is a probe for secondary battery aging that is enabled.

In addition, the shell may include a body having a through hole formed along the axis to couple the core; and a head detachably mounted on one end of the body and outputting current by being in contact with the electrode (T) during aging.

In addition, it is preferable that the body and the head are coupled by forcing the head to one end of the body.

In addition, it is preferable that the body includes a male fitting portion formed around one end side, and the head includes a female fitting portion formed to be press-fitted with the male fitting portion on one surface corresponding to the male fitting portion.

In addition, it is preferable that a C-ring interposed between the male fitting part and the female fitting part is further included, and the male fitting part and the female fitting part are press-fitted through the C-ring.

In addition, it is preferable that the core is detachably coupled to the shell so that it can be separated from the shell without disassembling other parts.

In addition, it is preferable to include an E-ring detachably mounted on the input end of the core to prevent the core from being separated from the through hole toward the output end.

According to the secondary battery aging probe of the present invention, the plurality of probes mounted on the aging equipment in order to age the plurality of secondary batteries at once by the aging equipment is in contact with the electrode and the shell body disposed outside in order to apply a current to the secondary battery Since the head can be detached from the shell body, only the damaged head can be separated from the shell body, discarded, and replaced with a new one without disposing of the entire probe when the head part in contact with the electrode is damaged due to repeated aging. Accordingly, it is possible to greatly reduce the cost of the aging operation, as well as significantly reduce the waste of resources due to the discarding of the probe.

In addition, like the probe shell, the core that is disposed inside the shell to apply a voltage to the secondary battery and contacts the electrode can also be detached from the shell body, so that even when the output tip of the core is worn over and over again, the entire probe can be cleaned. Without discarding, only the worn core can be separated from the shell, discarded, and replaced with a new one, and thus, the cost and resource waste for the aging operation can be greatly reduced.

1 is a front view showing a conventional probe.
Figure 2 is a perspective view showing a secondary battery aging probe according to the present invention.
Fig. 4 is a longitudinal sectional view of Fig. 2;
Figure 5 is an exploded perspective view of Figure 2;
6 is a longitudinal sectional view showing another embodiment of a probe according to the present invention;
FIG. 7 is a view showing the probe of FIG. 4 in a loaded state;

Hereinafter, a probe for secondary battery aging according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The probe of the present invention is a probe for current and voltage output having a cylindrical shape as a whole, as shown by reference numeral 1 in FIGS. 2 to 5, and is largely composed of an outer shell 3 and an inner core 5, A screw tube (7) and an elastic spring (9) for mounting on the aging equipment are mounted on the outside of the shell (3).

Here, the shell 3 is a part that outputs a current to the secondary battery to be aged, and supplies the current applied from the power source to the target battery. To this end, the shell 3 again, as shown in FIGS. 2 to 5 , the body 11 on the input side to which the current of the external power is applied, and the head on the output side for supplying the current applied to the body 11 to the target battery. (13) consists of

At this time, the body 11 is a column having various cross-sectional shapes of circular or square shape, and external power is applied to the current input side end in the upper part of the drawing, that is, the input terminal, and the secondary battery is at the current output side end in the lower part of the drawing, that is, the output terminal. of the electrode T is in contact. However, if the abutment ring 15 is present, through this abutment ring 15, if there is not, it directly contacts the electrode T to output current to the secondary battery. Here, the abutment ring 15 is to increase the contact area when the surface of the electrode T in contact with the output end of the body 11 is not flat, and at least a portion is elastically expanded and contracted by the spring unit 16 , so , so that the output terminal of the body 11 can secure a sufficient contact surface even for the non-flat electrode (T) surface.

In addition, in the body 11, the fixing nut 18 for fixing the probe 1 to the aging equipment is fastened to the upper part of the drawing, that is, the input side end, and a female thread part for screwing the fixing nut 18. (19) is processed. Further, a through hole 17 for engaging the core 5 is formed in the central portion along the axis. At this time, the through hole 17 is formed so that the core spring 39 fitted in the outer periphery of the core 5 can be compressed by the body 11 in order to elastically move the shell 3 and the core 5 relative to each other, as will be described later. , As shown in FIG. 4, the pressing jaw 21 is formed in the upper middle portion.

The head 13 enlarges the diameter of the output terminal in order to increase the contact area with the secondary battery electrode T, and as shown in FIG. In order to make the current output of the bar more stable, it may be detachably mounted on the output terminal of the body 11 so that it can be replaced by being separated from the body 11 .

To this end, the head 13 may be detachably coupled to the output terminal of the body 11 in various ways such as screw fastening, and in particular, in this embodiment, as shown in FIGS. It can be joined by fitting. For this purpose, preferably, as shown in FIGS. 2 and 3 , a fastening surface 22 is formed on the outer circumferential surface for convenient gripping of the head 13 with a spanner or the like.

On the other hand, the head 13 may achieve an interference fit by reducing the inner diameter of the through hole through the center than the outer diameter of the output end of the body 11, but in this embodiment, the body 11 fitting tube is located on the upper surface of the drawing of the head 13 (23) may protrude so that the outer peripheral surface of the output side of the body 11 is press-fitted. At this time, the male fitting part 25 is formed on the outer peripheral surface of the body 11 output side, and the male fitting part 25 and the female fitting part are press-fitted on the inner circumferential surface of the fitting pipe 23 corresponding to the male fitting part 25 . (27) is formed.

In addition, as another embodiment, the head 13 is shown on or on the outer circumferential surface as shown in FIG. 3 to indicate the critical range in which the interference fitting of the male fitting part 25 and the female fitting part 27 is completed. Although not, it is possible to put a critical mark 14 on the outer circumferential surface of the fitting pipe 23, and a reference mark 12 for indicating the reference position on the outer circumferential surface of the body 11 to correspond thereto. Therefore, when the operator turns the head 13 and press-fits the lower end of the body 11, the reference mark 12 and the critical mark 14 are the reference mark 12 within the range of the critical mark 14 above. Make sure that the press fit is complete.

Furthermore, in order to further strengthen the interference fit between the output end of the head 13 and the body 11, as shown in FIGS. 4 and 5, a C-ring 29 between the male fitting part 25 and the female fitting part 27 ) can be added to achieve an interference fit.

In addition, the head 13 can be formed in the form of a hollow ring to fit into the outer periphery of the output end of the body 11 when there is an abutment ring 15 on the output end of the body 11 as mentioned above, as well as shown However, it may be formed in the form of a solid cylinder to directly mount the abutment ring.

The core 5 is a part that outputs a voltage to a secondary battery to be aged, and supplies a voltage applied from a power source to the target battery. and is inserted into the through hole 17 of the body 11 so as to be arranged side by side along the axis of the shell 3 . At this time, the core 5 needs to be electrically insulated from the shell 3 , and as shown in FIG. 4 , the input end insulating bushing 31 of the upper part in the drawing interposed between the bodies 11 , the middle part It is coupled to the through hole 17 of the shell 3 while maintaining insulation by the middle insulating bushing 32 of the and the output end insulating bushing 35 of the lower part.

On the other hand, the core 5 according to the present embodiment can be separated from the shell 3 without disassembling other parts of the probe 1, and thus can be replaced as necessary. ) is detachably coupled to the through hole (17). At this time, since the core 5 has a locking protrusion 36 protruding radially outwardly from the lower portion just above the output tip 43 , it is impossible to grab the input tip 41 and pull it out upward in the drawing. However, the E-ring 37 is fitted in the radially outward direction through the locking groove in the upper part just below the input tip 41. When the E-ring 37 is removed from the locking groove, the output tip 43 is held and the core (5) can be easily pulled out downwards in the drawing, so that when a problem such as wear occurs on the output tip 43, the core 5 can be simply replaced. In other words, the E-ring 37 prevents the core 5 from being separated from the through hole 17 toward the output end.

Now, the operation of the secondary battery aging probe 1 according to a preferred embodiment of the present invention will be described as follows.

According to the probe (1) of the present invention, a plurality of probes (1) are mounted on the aging equipment in the form of a flat plate, and the current is collectively applied to a plurality of secondary batteries arranged in a lattice form below through these probes (1). And by applying a voltage, it is possible to age the secondary battery.

To this end, each of the probes 1 has an input terminal positioned at the upper side of FIG. 4 connected to a power source, and an output terminal positioned at the lower side in contact with the electrode T of the secondary battery. At this time, as shown in FIG. 4 , in the probe 1 moving downward, the output tip 43 at the bottom of the core 5 first contacts the electrode T to output a voltage to the electrode T. Thereafter, the core 5 can no longer move downward, but the shell 3 continues to descend until the bottom surface of the head 13 contacts the electrode T, as shown in FIG. 7 . When the head 13 contacts the electrode T, the shell 3 outputs a current to the electrode T. However, when the abutment ring 15 is installed at the bottom of the body 11, the abutment ring 15 comes into contact with the electrode T before the head 13 or the body 11, and at this time, the abutment ring ( 15) is made to flow in the axial direction by the spring 16, so that a sufficient contact area is secured even on the non-flat electrode (T) surface.

As such, in order to press the probe 1 against the electrode T by the aging equipment, the aging equipment must press the shell 3 through the screw tube 7 downward in the drawing. At this time, since the core 5 comes into contact with the electrode T first, the body 11 presses the middle insulating bushing 33 and the core spring 39 through the pressing jaw 21, so the core spring ( 39) is compressed, only the shell 3 moves downward relative to the head 13 and finally comes into contact with the electrode T together with the head 13.

Therefore, the core 5 is located at the bottom dead center by being pressed in advance by the pressing jaw 21 and the middle insulating bushing 33 even in the no-load state shown in FIG. . Conversely, in the load state shown in FIG. 7, the core spring 39 is further compressed by the shell 3, and the shell 3 moves downward relative to the core 5 while compressing the core spring 39. It is in contact with the electrode (T) and returns to its original state by the reaction force of the core spring (39) when the contact is released. When the screw tube 7 is further moved downward by the aging equipment while the head 13 and the body 11 are in contact with the electrode T, the force applied to the probe 1 while the elastic spring 9 is compressed. will fill the

On the other hand, FIG. 7 shows a probe 1 according to another embodiment of the present invention, and the probe 1 has a difference in the length of parts, such as that the length of the head 13 is longer than the length of the head 13 above. Since they are the same except for the presence of , further description is omitted.

In the above, specific embodiments of the present invention have been described as examples, but these are for illustrative purposes only and are not intended to limit the protection scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that various substitutions, modifications and changes can be made within the scope of the present invention without departing from the spirit of the present invention.

1: probe 3: shell
5: core 7: screw tube
9: elastic spring 11: body
13: head 15: abutment ring
17: through hole 19: female thread part
21: presser jaw 23: fitting tube
25: male fitting part 27: female fitting part
29: C ring 31: input end insulation bushing
33: middle insulation bushing 35: output terminal insulation bushing
37: E-ring 39: core spring
41: input tip 43: output tip

Claims (7)

delete a shell 3 for outputting the current supplied from the power source to the target battery; and
A core (5) coupled side by side in an insulating state to the shell (3) and outputting a voltage supplied from a power source to the target battery;
The shell 3 is replaceable by separating the part in contact with the electrode T of the target battery,
a body 11 having a through hole 17 formed along the axis to engage the core 5; and
A head 13 that is detachably mounted on one end of the body 11 and outputs a current by being in contact with the electrode T during aging; consists of,
In order to be able to separate the core 5 from the shell 3 without disassembling other parts, the through hole 17 allows the core 5 to be pulled out downward through the output end, The core 5 is detachably coupled to the shell 3 by an E-ring 37,
The E-ring (37) is detachably mounted on the input end of the core (5) to prevent the core (5) from being separated from the through hole (17) toward the output end. 3. The method according to claim 2,
The secondary battery aging probe, characterized in that the body (11) and the head (13) are coupled by forcing the head (13) to one end of the body (11). 4. The method according to claim 3,
The body 11 includes a male fitting part 25 formed around one end side,
The head (13) is a secondary battery aging probe, characterized in that it comprises a female fitting portion (27) formed to be forced fit with the male fitting portion (25) on one surface corresponding to the male fitting portion (25). 5. The method according to claim 4,
It further includes a C-ring (29) interposed between the male fitting part (25) and the female fitting part (27), wherein the male fitting part (25) and the female fitting part (27) are the C-rings (29). ) A probe for secondary battery aging, characterized in that it is pressed through. delete delete

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