KR102184057B1 - Electrode connection unit with 4 wire connection type - Google Patents

Abstract

The present invention relates to a unit for connection with an electrode of a battery. An electrode connection unit with 4 wire connection type includes: a body; an electrode guide provided therein with insertion guide parts protruding to an insertion side of the electrode to face each other, and to guide insertion of the electrode by increasing a separation distance between each other when a separation distance between insertion guide parts is gradually increased in an end of an insertion side of the electrode; a pogo pin connector buried at an inner side of the electrode guide, and installed at the body electrically connected to the electrode wherein a pogo pin to which elasticity is provided is pressed at the electrode inserted into the electrode guide to protrude the electrode in a direction aligning an insertion direction so that the pogo pin is elastically supported at an end of the electrode. According to the present invention, the pogo pin connector avoids interference with external objects by a structure buried in the electrode guide so that durability and connection reliability can be improved. Since a pair of pogo pin connector may be used by 4 wire connection type due to insulation of the pogo pin connector and insulation of an electrode guide, an exact result may be obtained without contact resistance, and convenience of maintenance and management can be increased by partial separation or replacement of the body.

Description

Electrode connection unit with 4 wire connection type}

The present invention relates to an electrode connection unit, and more particularly, by avoiding interference with external objects by a structure in which a pogo pin connector is embedded in an electrode guide, durability and connection reliability can be improved, and the pogo pin connector itself The present invention relates to an electrode connection unit capable of a four-wire connection method that allows a four-wire connection method to be used when a pogo pin connector is used as a pair so as to correspond to each electrode of a battery due to the insulation property and the insulation of the electrode guide.

In general, secondary batteries are rechargeable and can be large-capacity, and typical examples include nickel cadmium, nickel hydrogen, and lithium ion batteries. Among these secondary batteries, it can be manufactured in a flexible pouch type, and in this case, it has an advantage of relatively free shape.

This secondary battery cell pouch has a battery cell inside, and a polymer exterior material corresponding to the pouch surrounds the battery cell. To this end, it is composed of an electrode, a pouch, and a battery cell, and is charged and discharged during the manufacturing process. However, it requires a connection to the electrode to perform various tests.

As a technology related to connection to electrodes of a conventional cell pouch, “electrode connection unit for preventing electrode damage” of Korean Patent No. 10-2130939 filed by the applicant of the present invention has been disclosed. This is a unit for connecting to an electrode of a battery, comprising: a main body; An electrode provided with an insertion guide part protruding from the insertion side of the electrode to face each other in the main body and provided with an insertion guide part for guiding the insertion of the electrode by increasing the distance from each other toward the end by bending at the insertion side of the electrode guide; And a connection pin provided with an elastic force so as to protrude in a direction in line with the direction in which the electrode is inserted into the electrode guide is pressed against the electrode inserted into the electrode guide so that the electrode is elastically supported at the end of the electrode. A pogo pin connector installed in the main body to be connected to each other, wherein the electrode guide includes fixing holes on both sides for fixing with fixing bolts to the main body, and the pogo pin connector between the fixing holes The receiving groove for receiving the connection pin is formed to be opened back and forth so that the flow of the connection pin is possible, and the electrode is inserted into the receiving groove for connection with the connection pin.

However, in this prior art, since the electrode guide is made of metal, the pogo pin connector is inevitable due to the structure in which the receiving groove is opened front and rear for the reception of the pogo pin connector. It is easily damaged due to interference with an object and has a problem of deteriorating durability and connection reliability.

In addition, in the prior art, since the body of the pogo pin connector is made of a conductive material, when using two pogo pin connectors corresponding to the number of electrodes of the battery, it can be used in a four-wire method due to the non-insulation of the electrode guide and pogo pin made of metal. There was a problem that there was no.

In addition, the conventional technology causes noise during measurement through electrode connection of the battery due to the electrode guide made of metal, and in order to prevent this, in addition to the hassle of attaching and using an insulating sheet to the electrode guide, the insulating sheet is easily damaged and It caused problems such as causing contamination.

In addition, the prior art has a problem in that the convenience of maintenance and management by partial separation and replacement is insufficient due to the standardized structure of the main body.

In order to solve the above problems of the prior art, the present invention can improve durability and connection reliability by avoiding interference with external objects by a structure in which the pogo pin connector is embedded in the electrode guide, and the pogo pin connector itself Due to the insulation properties of the electrode guide and the pogo pin connector as a pair to correspond to each electrode of the battery, the 4-wire connection method can be used, so that accurate results without contact resistance can be obtained. It has the purpose of enhancing the convenience of maintenance and management by part separation or part replacement of the main body.

In order to solve the problems as described above, according to an aspect of the present invention, as a unit for connecting to an electrode of a battery, the main body; An electrode guide protruding toward the insertion side of the electrode in the main body so that the pair faces each other, and an insertion guide portion is provided to guide the insertion of the electrode by increasing a distance from each other toward the end of the electrode; And a pogo pin installed to be buried inside the electrode guide and provided with an elastic force so as to protrude in a direction in line with the direction in which the electrode is inserted is pressed against the electrode inserted into the electrode guide to elastically support the end of the electrode. By doing so, a pogo pin connector installed on the main body so as to be electrically connected to the electrode is provided, including an electrode connection unit capable of a four-wire connection method.

The pogo pin connector is provided so that a plurality of pogo pins protrude from one side of the pogo block, and pogo sockets provided at each end of each pogo pin protrude from the other side of the pogo block, and the pogo pin The block may be made of an insulating material for independent connection of the pogo pins, and a through hole for fixing may be formed in the pogo block.

In the main body, a first block receiving groove for receiving the pogo block is formed on one side thereof, and a guide receiving groove extending to both sides thereof including the first block receiving groove is formed to receive the electrode guide, First and second fastening holes for fixing each of the pogo block and the electrode guide with bolts may be formed in each of the first block receiving groove and the guide receiving groove.

The electrode guide has one side received in the guide receiving groove, and connected to the first block receiving groove, thereby forming a second block receiving groove for receiving the pogo block together with the first block receiving groove, and the A first electrode guide in which a pogo pin receiving groove is provided on one side of the second block receiving groove while allowing the pogo pin to flow, and a first fixing hole is formed at both sides of the second block receiving groove; And the pogo block in the first and second block receiving grooves and the buried groove by being disposed to face the first electrode guide and forming a buried groove to face the second block receiving groove and the pogo pin receiving groove. It is buried so that this exposure is suppressed, and the pogo pin is buried in the pogo pin receiving groove and the buried groove so that exposure is suppressed while allowing the flow, and the second fixing hole penetrates the first fixing hole by a second fixing hole. The first bolt is fastened to the fastening hole so that it is fixed together with the first electrode guide, and the second bolt is fastened to the first fastening hole by penetrating the through hole by a third fixing hole, and thus together with the pogo block. It may include a; second electrode guide to be fixed.

The main body may include first and second main bodies to which a side to which the electrode guide is assembled and a side to be fixed to an apparatus for performing an operation on a battery are detachably coupled to each other.

In the main body, a pair of bent portions are provided on the side where the electrode guide is assembled, so that the ends of the electrode guide are aligned with the side portions.

The pogo pin connector may expose a pogo socket provided at an end of the pogo pin through a cable receiving groove provided for accommodating a connection cable in the main body.

The pogo pin connector may be provided with a connector at an end of a connection cable that is connected to a pogo socket provided at an end of the pogo pin and is drawn out.

According to the electrode connection unit capable of 4 wire connection according to the present invention, the pogo pin connector is embedded in the electrode guide, thereby avoiding interference with external objects, thereby improving durability and connection reliability, and Due to the insulation of the connector itself and the insulation of the electrode guide, when a pogo pin connector is used as a pair to correspond to each electrode of a battery, a four-wire connection method can be used, so that accurate results without contact resistance can be obtained. , It has the effect of increasing the convenience of maintenance and management by part separation or part replacement of the main body.

1 is a perspective view showing an electrode connection unit capable of connecting a four wire according to a first embodiment of the present invention,
2 is a rear perspective view showing an electrode connection unit capable of connecting a four wire method according to a first embodiment of the present invention,
3 is an exploded perspective view showing an electrode connection unit capable of connecting a four wire connection method according to a first embodiment of the present invention;
4 is a rear perspective view showing an exploded view of an electrode connection unit capable of connecting a four wire according to a first embodiment of the present invention;
5 is a side cross-sectional view showing an electrode connection unit capable of connecting a four wire method according to a first embodiment of the present invention,
6 is a view showing an installation state of an electrode connection unit capable of connecting a four wire method according to the first embodiment of the present invention,
7 is a perspective view showing an electrode connection unit capable of connecting a four wire according to a second embodiment of the present invention.

Since the present invention may have various embodiments by various modifications, specific embodiments will be described in the drawings as examples. In addition, the present invention is not limited to these specific embodiments, and it is to be understood that all changes, equivalents, and substitutes included in the technical idea of the present invention are included.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals are assigned to the same or corresponding components regardless of the reference numerals, and redundant descriptions thereof will be omitted. To

1 is a perspective view showing an electrode connection unit capable of a four-wire connection method according to a first embodiment of the present invention, and FIG. 2 is an electrode connection unit capable of a four-wire connection method according to a first embodiment of the present invention. FIG. 3 is a perspective view showing an exploded view of an electrode connection unit capable of connecting a four wire according to a first embodiment of the present invention, and FIG. 4 is a perspective view showing a fourth example according to the first embodiment of the present invention. It is an exploded rear perspective view showing an electrode connection unit capable of a single wire connection method, and FIG. 5 is a side cross-sectional view showing an electrode connection unit capable of a four wire connection method according to a first embodiment of the present invention.

1 to 5, an electrode connection unit 100 capable of connecting a four wire according to an embodiment of the present invention is a unit for connecting to an electrode of a battery, and includes a main body 110 and an electrode guide 120. ) And a pogo pin connector 130 may be included. Here, the battery is, for example, a secondary battery, which is rechargeable and capable of high capacity, and may be a nickel cadmium, nickel hydrogen, lithium ion battery, etc., and further, may be a pouch type having flexibility, This is not necessarily limited, and can be applied to all types of batteries in which the electrodes protrude to the outside.

The main body 110 allows the electrode guide 120 to be installed, and a fixing part 111 may be provided so as to be fixed to a device for performing an operation on a battery. The fixing part 111 may be fixed by fastening a plurality of fixing bolts, for example, a device for discharging, charging, or performing various tests on a battery, or a device provided to perform connection of a battery to such a device, and further, Depending on the fixing structure, a fixing plate 112 fixed by fixing bolts may be additionally provided to mediate fixing. The body 110 may be partially or entirely made of acetal corresponding to engineering plastic, but is not limited thereto, and various materials capable of securing insulation and strength, including synthetic resin, may be used.

The body 110 may be formed with a first block receiving groove 113 for accommodating the pogo block 131 of the pogo pin connector 130 on one side thereof, and both sides thereof including the first block receiving groove 113 A guide receiving groove 114 that is extended to the electrode guide 120 may be formed, and the pogo block 131 and the electrode guide 120 are respectively provided in the first block receiving groove 113 and the guide receiving groove 114. ) First and second fastening holes 113a and 114a for fixing each of the bolts 123 and 124 may be formed, respectively.

The main body 110 is a side to which the electrode guide 120 is assembled to facilitate maintenance and management through partial separation and replacement, and a side to be fixed to a device for performing work on the battery (for example, the fixing part 111 ) Side) may be formed of first and second bodies 118 and 119 that are detachably coupled to each other. The first body 118 may be formed such that, for example, a fitting protrusion 118a at an end thereof extends outward. For example, the second body 119 may have a fitting groove 119a for fitting the fitting protrusion 118a at the end. The first and second bodies 118 and 119 may be detachably coupled to each other by fastening at least one coupling bolt 119b to the fitting groove 119a with the fitting protrusion 118a fitted to each other.

The main body 110 may be formed with a cable receiving groove 115 for receiving the connection cable 140 along the path where the connection cable 140 is installed, and the mounting groove 116 so as to cross the cable receiving groove 115 ) May be formed, and the fixing piece 117 accommodated in the mounting groove 116 and fixed with the fixing bolt 117a may support the connection cable 140 so as not to be separated from the cable receiving groove 115. Accordingly, the connection cable 140 is located within the cable receiving groove 115 to reduce interference with external objects, and further, prevents unwanted separation from the cable receiving groove 115 by the fixing piece 117 can do.

The electrode guide 120 protrudes toward the insertion side of the electrode in the main body 110 and is installed so that the pair faces each other, and the distance from each other increases toward the end of the electrode insertion side, thereby guiding the insertion of the electrode. (121d, 122e) is provided. The electrode guide 120 may be made of an acetal corresponding to engineering plastic, but is not limited thereto, and various materials capable of securing insulation and strength, including synthetic resin, may be used. In addition, the electrode guide 120 is formed in a pair, but may include first and second electrode guides 121 and 122 as in the present embodiment.

The first electrode guide 121 is accommodated in one side in the guide receiving groove 114 and connected to the first block receiving groove 113, so that the pogo block 131 is accommodated together with the first block receiving groove 113. A second block receiving groove 121a may be formed, and a pogo pin receiving groove 121b may be provided on one side of the second block receiving groove 121a to accommodate the pogo pin 132 while allowing the flow. In addition, first fixing holes 121c may be formed on both sides of the second block receiving groove 121a, respectively.

The second electrode guide 122 may be disposed to face the first electrode guide 121, and the buried groove 122a is formed to face the second block receiving groove 121a and the pogo pin receiving groove 121b. , The pogo block 131 may be buried in the first and second block receiving grooves 113 and 121a and the buried groove 122a so that exposure is suppressed, and the pogo pin receiving groove 121b and the buried groove 122a The pin 132 may be buried so that exposure is suppressed while allowing flow, and through the first fixing hole 121c by the second fixing hole 122c, the first bolt 123 is inserted into the second fastening hole 114a. ) Is fastened so that it is fixed together with the first electrode guide 121, and the second bolt 124 is fastened to the first fastening hole 113a through the through hole 131a by the third fixing hole 122d. As a result, it can be fixed together with the pogo block 131. In addition, the second electrode guide 122 may have a lead-out groove 122b formed at an upper end thereof for the lead-out of the connection cable 140.

The electrode guide 120, together with the pogo pin connector 130, has the number and arrangement to correspond to each of the electrodes provided on one side of the battery. In this embodiment, it indicates that it is installed singly on the main body 110, In this case, the electrodes are disposed on opposite sides of the battery, so that the main body 110 is disposed to correspond to each of the electrodes, so that each main body 110 is responsible for connecting to one electrode. The present invention is not limited thereto, and two electrode guides 120 may be installed on the main body 110 so as to be spaced apart from each other along the length direction. In this case, two electrodes are provided side-by-side on one side of the battery. The main body 110 may be configured to perform connection to both of these two electrodes.

The pogo pin connector 130 is formed in a number corresponding to the number of electrode guides 120, and is installed to be buried inside the electrode guide 120, and between the electrode guides 120, that is, the first and second electrode guides The pogo pin 132, which is provided with an elastic force so that it protrudes in a direction in line with the direction in which the electrode is inserted between 121 and 122, is pressed against the electrode inserted into the electrode guide 120 so that it is elastically supported at the end of the electrode. It is installed on the main body 110 to be electrically connected to.

Pogo pin connector 130 may be provided so that a plurality of pogo pins 132 protrude from one side of the pogo block 131 in parallel, and pogo sockets 133 provided at each end of the pogo pin 132 are pogo pins 132 Each may be provided to protrude from the other side of the block 131, the pogo block 131 may be made of an insulating material for independent connection of each of the pogo pins 132, and through for fixing to the pogo block 131 Holes 131a may be formed. The pogo block 131 may be made of, for example, transparent acrylic, but is not limited thereto, and various materials capable of insulation may be used. The pair of pogo pins 132 are spaced apart and insulated from each other by the pogo block 131, so that when the pogo pin connector 130 is used as a pair to correspond to each electrode of the battery, two pogo pins ( 132) is connected, and one of the two pogo pins 132 connected to the electrode is used for supplying power to the battery, and the other is used for receiving an electrical signal output from the battery. The battery can be connected by four wire methods.

In order to elastically support the electrode, for example, the pogo pin 132 is formed of a single unit and is provided with an elastic force in the protruding direction from the spring installed in the pogo block 131 in a state in which it is slidable within a predetermined range of the pogo block 131 Or, as another example, consisting of an outer tube and an inner tube that are slidably coupled to expand and contract within a predetermined range so as to overlap with each other, any one tube is fixed to the pogo block 131, and from a spring installed inside the outer tube and the inner tube The other tube may be configured to receive an elastic force in the protruding direction, whereby the pogo pin 132 provides an elastic force so that the pogo pin 132 protrudes in a direction in line with the direction in which the electrode 11 is inserted into the electrode guide 120 do.

The pogo pin connector 130 may be provided with a connector 141 at an end of a connection cable 140 that is connected to a pogo socket 133 provided at an end of the pogo pin 132 and is drawn out. Such a connector 141 allows connection between cables by a fitting method, but may be a female connector as in this embodiment, but is not limited thereto, and a male connector may be used, and is assembled with a connector of an external cable to provide electrical connection. A variety of connectors to make it possible can be used. The pogo socket 133 may provide a structure to enable electrical connection to the connection cable 140.

Referring to FIG. 6, the electrode connection unit 100 capable of connecting a four wire according to the first embodiment of the present invention is provided with a fixing part 111 or a fixing plate 112 provided in the main body 110, and a battery It may be fixed to the fixing part 21 of the device 20, which is provided to perform discharge, charging, or various tests of the device, or the connection of the battery to the device. In this embodiment, the battery It indicates that they are installed to face each side of the battery 10 so as to be connected to the electrodes 11 respectively provided on both sides of (10). Without being limited thereto, depending on the arrangement shape and position of the electrodes 11 of the battery 10, the fixing and arrangement positions of the electrode connection unit 100 capable of a four-wire connection method according to the present invention, and each body 110 It goes without saying that the number of electrode guides 120 and pogo pin connectors 130 provided may be different.

7 is a perspective view showing an electrode connection unit capable of connecting a four wire according to a second embodiment of the present invention.

Referring to FIG. 7, an electrode connection unit 200 capable of connecting a four wire according to a second embodiment of the present invention may include a body 210, an electrode guide 220, and a pogo pin connector. Since it has been described in detail in the electrode connection unit 100 capable of a four-wire connection method according to the first embodiment of the present invention, overlapping descriptions for the same parts will be omitted, and a description will be made focusing on differences. Therefore, the electrode connection unit 200 capable of four-wire connection according to the second embodiment of the present invention is an electrode connection capable of four-wire connection according to the first embodiment of the present invention, except for differences to be described later. It is the same as the unit 100.

In this embodiment, the body 210 is provided with a pair of bent portions 210A and 210B on the side where the electrode guide 220 is assembled, so that the ends of the electrode guide 220 may be aligned with the side. . Accordingly, the degree of protrusion of the end of the electrode guide 220 from the main body 210 can be appropriately changed according to the installation structure.

In this embodiment, the pogo pin connector may expose the pogo socket 233 provided at the end of the pogo pin through the cable receiving groove 215 provided for accommodating the connection cable in the main body 210, thereby For this reason, the connection state of the pogo socket 233 can be easily checked from the outside or the connection operation can be performed from the outside, thereby making it advantageous for maintenance and management.

According to the electrode connection unit capable of connecting the four wires according to the present invention, the pogo pin connector is buried in the electrode guide, thereby avoiding interference with external objects, thereby improving durability and connection reliability.

In addition, according to the present invention, due to the insulation of the pogo pin connector itself and the insulation of the electrode guide, when the pogo pin connector is used as a pair to correspond to each electrode of the battery, a four-wire connection method can be used, so that the contact resistance is reduced. It is possible to obtain an accurate result that is not present, and the convenience of maintenance and management can be improved by part separation or part replacement of the main body.

Although the present invention has been described with reference to the accompanying drawings as described above, various modifications may be made without departing from the spirit of the present invention. Therefore, the scope of the present invention is limited to the above-described embodiments and should not be defined, but should be defined by the claims and the claims and equivalents.

10: battery 11: electrode
20: connection device 21: fixed part
110,210: main body 111: fixed part
112: fixing plate 113: first block receiving groove
113a: first fastening hole 114: guide receiving groove
114a: second fastening hole 115,215: cable receiving groove
116: mounting groove 117: fixed piece
117a: fixing bolt 118: first body
118a: fitting protrusion 119: second body
119a: fitting groove 119b: coupling bolt
120,220: electrode guide 121: first electrode guide
121a: second block receiving groove 121b: pogo pin receiving groove
121c: first fixing hole 121d: insertion guide part
122: second electrode guide 122a: buried groove
122b: withdrawal groove 122c: second fixing hole
122d: third fixing hole 122e: insertion guide part
123: first bolt 124: second bolt
130: pogo pin connector 131: pogo block
131a: through hole 132: pogo pin
133,233: Pogo socket 140: connection cable
141: connector 210A, 210B: bent part

Claims (8)

As a unit for connecting to the electrode of the battery,
main body;
An electrode guide protruding toward the insertion side of the electrode in the main body so that the pair faces each other, and an insertion guide portion is provided to guide the insertion of the electrode by increasing a distance from each other toward the end of the electrode; And
The pogo pin, which is installed to be buried inside the electrode guide and provided with an elastic force so as to protrude in a direction in line with the direction in which the electrode is inserted, is pressed against the electrode inserted into the electrode guide so that it is elastically supported at the end of the electrode. By doing so, a pogo pin connector installed on the main body to be electrically connected to the electrode; including,
The pogo pin connector,
A plurality of pogo pins are provided to protrude from one side of the pogo block in parallel, and pogo sockets provided at each end of the pogo pin are respectively provided to protrude from the other side of the pogo block, and the pogo blocks are respectively It is made of insulating material for independent connection of
The main body,
A first block receiving groove for accommodating the pogo block is formed on one side thereof, and a guide receiving groove extending to both sides thereof including the first block receiving groove to accommodate the electrode guide is formed,
The electrode guide,
One side is received in the guide receiving groove and connected to the first block receiving groove, thereby forming a second block receiving groove for receiving the pogo block together with the first block receiving groove, and the second block receiving groove A pogo pin receiving groove is provided on one side of the pogo pin to be accommodated while allowing the flow, and a first electrode guide; And
Arranged to face the first electrode guide, by forming a buried groove to face the second block receiving groove and the pogo pin receiving groove, the pogo block in the first and second block receiving grooves and the buried groove A second electrode guide buried so as to suppress exposure, allowing the pogo pin to flow and suppressing exposure in the pogo pin receiving groove and the buried groove; including, an electrode connection unit capable of a four-wire connection method . The method according to claim 1,
The pogo pin connector is formed with a through hole for fixing to the pogo block,
In the main body, first and second fastening holes for fixing each of the pogo block and the electrode guide with bolts are formed in each of the first block receiving groove and the guide receiving groove,
The first electrode guide,
First fixing holes are formed on both sides of the second block receiving groove, respectively,
The second electrode guide,
The first bolt is fastened to the second fastening hole by penetrating the first fixing hole by a second fixing hole, so that it is fixed together with the first electrode guide, and penetrates the through hole by a third fixing hole. An electrode connection unit capable of a four-wire connection method to be fixed together with the pogo block by fastening a second bolt to the first fastening hole. delete delete The method according to claim 1 or 2,
The main body,
An electrode connection unit capable of a four-wire connection method, comprising first and second bodies in which a side to which the electrode guide is assembled and a side to be fixed to an apparatus for performing a work on a battery are detachably coupled to each other. The method according to claim 1 or 2,
The main body,
An electrode connection unit capable of a four-wire connection method, in which a pair of bent portions are provided on the side where the electrode guide is assembled, so that the ends of the electrode guides are aligned with the side portions. The method according to claim 1 or 2,
The pogo pin connector,
An electrode connection unit capable of a four-wire connection method in which the pogo socket provided at the end of the pogo pin is exposed through a cable receiving groove provided for receiving a connection cable in the main body. The method according to claim 1 or 2,
The pogo pin connector,
An electrode connection unit capable of a four-wire connection method, wherein a connector is provided at an end of a connection cable that is connected to a pogo socket provided at an end of the pogo pin and drawn out to the outside.

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