KR101373597B1 - Connector for electrical charge/dicharge of electric vehicle battery - Google Patents

Abstract

The present invention relates to a battery connecting apparatus, and more particularly, to a battery connecting apparatus capable of quickly and easily mounting and dismounting a battery of an electric vehicle without being manually operated, and a connection and disconnection process of the battery can be accurately and safely performed The present invention relates to a battery connecting device.
In order to achieve the above object, the battery connection device according to the present invention is a battery connection device comprising a first power connection portion, and a second power connection portion electrically connected to the first power connection portion, wherein the first power connection portion is a plurality An upper base plate having a socket insertion hole formed therein, a first power socket installed in the socket insertion hole, a second power socket, a ground socket, and a communication socket part including a plurality of communication sockets; A lower base plate having a plurality of pin insertion holes, first and second power pins installed in the pin insertion holes and connected to the first and second power sockets, and ground installed in the pin insertion holes and connected to the ground socket. And a communication pin part provided at the pin and the pin insertion hole and having a plurality of communication pins connected to the communication socket part.
According to this, the connection or disconnection process is performed by moving the first power connection part or the second power connection part even if a separate fastening operation or a separate operation is not performed using a tool or the like, so that the connection operation of the battery is quick and easy. It works. In particular, since the guide pins are guided by connecting and disconnecting the first and second power supply connections, the battery connection and disconnection process is performed accurately, and the first and second power sockets, the grounding sockets, and the communication sockets, Since the first and second power pins, the ground pin and the communication pin part are firmly fixed by a unique fixing structure, the impact force is transmitted to both sides during the connection process of the first and second power connectors, or the separation process of the first and second power connectors is performed. Even when the pulling force is applied to both sides does not deviate there is an advantage to ensure the durability.
In addition, since the ground pin is formed longer than the first and second power pins in the process of connecting the first and second power connectors, before the first and second power pins are connected to the first and second power sockets, Since it is connected to the grounding socket, there is an advantage that can prevent electrical safety accidents due to poor grounding.

Description

Battery connector {CONNECTOR FOR ELECTRICAL CHARGE / DICHARGE OF ELECTRIC VEHICLE BATTERY}

The present invention relates to a battery connecting apparatus, and more particularly, to a battery connecting apparatus capable of quickly and easily mounting and dismounting a battery of an electric vehicle without being manually operated, and a connection and disconnection process of the battery can be accurately and safely performed The present invention relates to a battery connecting device.

Generally, automobiles use fossil energy such as petroleum (gasoline, diesel, etc.) and natural gas as an energy source, but fossil energy is depleted with limited resources and the price is continuously rising.

In addition, since fossil energy is not only exhausting various exhaust gases that pollute the atmospheric environment during its use, but also discharging a large amount of carbon dioxide, which is a major cause of global warming, an electric vehicle Is being developed.

The electric vehicle is charged with the electric power of the battery by the plug-in method unlike the vehicle using the fossil energy, so that there is a problem that the inconvenience of the consumer due to the long waiting time and the lack of economical efficiency of the charging facility operator are accompanied.

As a method for solving such a problem, as disclosed in Korean Patent Laid-Open Publication No. 10-2011-0078289, a method of replacing a fully charged battery by charging a battery in advance without directly charging the battery of the electric vehicle , &Quot; battery replacement method ").

The battery replacement method includes a power connection unit for electrically connecting the charging device and the battery when the battery is charged and electrically connecting the battery and the battery mounting part of the electric vehicle when the battery is mounted on the electric vehicle.

As shown in Korean Patent Registration No. 10-0231663, the power connection unit includes a male screw 21 formed on the battery 10, a nut 30 coupled to the male screw, a leaf spring 40, a cover 50, , And a shield ring (60).

However, since the conventional power connection unit is a method of disassembling and fastening the nut 30 to the male screw 21, a separate manual operation is required, which requires a long connection and disconnection operation. In addition, a battery for an electric vehicle such as an electric bus has a large capacity and is very heavy in load and volume, so that it is more difficult and time-consuming to carry out manual connection work, and there is a problem of safety accidents.

In particular, if you want to use the electric vehicle of the electric bus for public transportation, you can quickly and easily attach and detach the battery in order to operate correctly according to the prescribed time, and detect the battery's remaining capacity, voltage, temperature, etc. There is an urgent need for a power connection to check the battery or control the battery.

The present invention has been proposed in view of the above, and it is possible to mount and detach a battery of an electric vehicle quickly and simply without being dependent on manual operation, so that the process of connecting and disconnecting the battery can be performed accurately and safely. The object is to provide a battery connection.

In order to achieve the above object, the battery connection device according to the present invention is a battery connection device comprising a first power connection portion, and a second power connection portion electrically connected to the first power connection portion, wherein the first power connection portion is a plurality An upper base plate having a socket insertion hole formed therein, a first power socket installed in the socket insertion hole, a second power socket, a ground socket, and a communication socket part including a plurality of communication sockets; A lower base plate having a plurality of pin insertion holes, first and second power pins installed in the pin insertion holes and connected to the first and second power sockets, and ground installed in the pin insertion holes and connected to the ground socket. And a communication pin part provided at the pin and the pin insertion hole and having a plurality of communication pins connected to the communication socket part.

The ground pin may have a longer length than the first and second power pins so that the ground pin may be connected to the ground socket before the first and second power pins when the first and second power connection portions are connected. have.

The first and second power sockets and the ground socket have a structure in which a socket step is formed on an upper outer surface of a rod-shaped body having a pin seating groove, and the upper base plate is inserted into the socket insertion hole so that the socket step is caught. A first socket seating jaw is formed at the upper base plate, and an upper support plate having a first communication hole communicating with the first and second power sockets, the ground socket, and the communication socket part is coupled to a bottom surface of the upper base plate. The first socket and the second power socket, the second socket seating jaw that the lower end of the ground socket is engaged may be formed in the upper portion of the communication hole.

In addition, the first and second power pins, the ground pin has a structure having a protrusion on the outer peripheral surface of the rod-shaped body, the lower base plate has a first pin seating jaw on the upper side of the pin insertion hole so that the lower portion of the protrusion is caught The base plate is formed on the upper surface of the lower base plate and the second communication hole communicating with the first and second power pins, the ground pin, the communication pin portion is coupled to the upper side of the protrusion in the second communication hole A second pin seating jaw may be formed in which the portion is locked.

On the other hand, the communication socket portion is inserted into the socket insertion hole and a plurality of communication socket insertion holes through which the communication socket is inserted through the communication socket body with a first fixing jaw protruding upward and downward, and the first fixing jaw is A first fixing jaw insertion groove to be inserted may be inserted and interposed between the upper base plate and the upper support plate to provide a communication socket fixing member for fixing the communication socket body.

The communication pin unit includes a communication pin body having a plurality of communication pin insertion holes inserted into the pin insertion hole and into which the communication pin is inserted, penetrating up and down and protruding a second fixing jaw to an outer surface thereof. The second fixing jaw insertion groove is inserted into the insertion may be provided between the lower base plate and the backing plate is provided with a communication pin fixing member for fixing the communication pin body.

On the other hand, the first power connection portion is coupled to the edge portion of the upper base plate and the upper housing protruding downward the upper coupling protrusion so that the fitting groove is provided between the upper base plate and the hexahedron provided with a receiving space therein A plurality of wire inlets are formed in a perforated structure in the body of the shape and includes an upper cover member coupled to the upper surface of the upper housing, wherein the second power connection portion is coupled to the edge portion of the lower base plate and inserted into the fitting groove A lower cover member having a lower coupling protrusion protruding upward, a lower cover member coupled to a bottom surface of the lower housing by being formed in a structure in which a plurality of wire inlets are perforated in a hexahedron-shaped body provided with a receiving space therein, and the lower coupling It may be provided with an airtight holding member which is inserted into the groove recessed in the outer surface of the protrusion.

A guide pin insertion hole is drilled in an edge portion of the upper housing, and a pin guide portion having a guide hole is provided below the guide pin insertion hole, and the pin guide portion is inserted through the pin guide portion and connected to the guide pin insertion hole. It may be provided with a guide pin protruding from the lower housing.

In this case, the guide pin is formed in a structure in which the groove is indented on the outer peripheral surface of the body having a round bar shape, the guide bushing is installed so as to have a clearance in the guide pin insertion hole to perform a stable insertion and removal of the guide pin The pin guide part includes an installation hole formed at a position corresponding to the home position groove, a seating ball inserted into the installation hole to be seated in the home position groove, and inserted into the installation hole to apply an elastic force to the seating ball. It may include an elastic member, and a pressure bolt fastened to the outside of the installation hole.

According to the battery connecting device according to the present invention, the connection or disconnection process is performed by the operation of moving the first power connection or the second power connection even without performing a separate fastening or detaching operation using a tool, etc. The connection work is quick and easy.

In particular, since the guide pins are guided by connecting and disconnecting the first and second power supply connections, the battery connection and disconnection process is performed accurately, and the first and second power sockets, the grounding sockets, and the communication sockets, Since the first and second power pins, the ground pin and the communication pin part are firmly fixed by a unique fixing structure, the impact force is transmitted to both sides during the connection process of the first and second power connectors, or the separation process of the first and second power connectors is performed. Even when the pulling force is applied to both sides does not deviate there is an advantage to ensure the durability.

In addition, since the ground pin is formed longer than the first and second power pins in the process of connecting the first and second power connectors, before the first and second power pins are connected to the first and second power sockets, Since it is connected to the grounding socket, there is an advantage that can prevent electrical safety accidents due to poor grounding.

1A and 1C are views illustrating a connected state of a battery connection device according to an embodiment of the present invention;
FIGS. 2A to 2F illustrate a first power connection portion of a battery connection device according to an embodiment of the present invention;
FIGS. 3A through 3F illustrate a second power connection portion of a battery connecting device according to an embodiment of the present invention;
4 is an enlarged exploded perspective view of part A of FIG. 1A.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figures 1a and 1c is a view showing a connected state of the battery connection device according to an embodiment of the present invention, Figure 1a is an exploded perspective view, Figure 1b is a front view, Figure 1c is a side view. FIG. 2B is a side view, FIG. 2C is a bottom view, FIG. 2D is a longitudinal sectional view, and FIG. 2C is a side view of the battery connecting apparatus according to the first embodiment of the present invention. 2e is an enlarged view of the portion B in Fig. 2d, and Fig. 2f is an enlarged view of the portion C in Fig. 2d.

1A to 1C, a battery connection device according to an embodiment of the present invention electrically connects a battery to a charging unit (not shown, a power supply unit of a charging device provided in a charging station) for charging a discharged battery. A device installed to electrically connect a charged battery to a battery mounting unit (not shown) of an electric vehicle, the first power connection unit 1 mounted to the battery, and the first power connection unit 1 to be electrically connected. It consists of a second power supply connecting portion 2 which is installed in the charging unit of the battery or the battery mounting portion of the electric vehicle.

As shown in FIGS. 2A to 2F, the first power connector 1 includes an upper base plate 11, an upper support plate 12, a first power socket 13, a second power socket 14, and a ground socket ( 15), a communication socket portion 16, an upper housing 17, and an upper cover member 18.

The upper base plate 11 is formed in a substantially rectangular plate shape by an insulating material and has a plurality of socket insertion holes 111 formed in the center thereof along the transverse direction.

In addition, the upper base plate 11 has a first socket seating jaw 112 is formed in multiple stages in the socket insertion hole 111 so that the socket end of each socket to be described later is fastened, the fastening for coupling the upper support plate 12 The fastening hole 113 into which the member is inserted is formed. At this time, the first socket-seating pawl 112 is connected to the first power socket 13 even if the upward pressing force is applied in connection with the first and second power pins 23, 24 and the ground pin 25, The second power socket 14, and the ground socket 15 are prevented from being pushed upward or separated from each other.

The upper support plate 12 is a member coupled to the bottom surface of the upper base plate 11 and is formed in the shape of a rectangular plate by an insulating material similar to the upper base plate 11, and the first and second power sockets 13 and 14. ), A ground socket 15, and a plurality of first communication holes 121 in communication with the communication socket portion 16 are formed. The first communication hole 121 is formed with a first socket 122 and a second socket 122 on which the lower ends of the first and second power sockets 13 and 14 and the ground socket 15 are hooked. In this case, the second socket seating jaw 122 is connected to the first and second power pins 23 and 24 and the ground pin 25 which will be described later, and then the pull-down force is applied in the process of being separated downward. And restraining the second power sockets 13 and 14 and the ground socket 15 from falling down.

The first and second power sockets 13 and 14 are provided in the socket hole 111 of the upper base plate 11 and the first communication hole 121 of the upper support plate 12, (23) and is formed of a conductive material.

As shown in FIG. 2F, the first and second power sockets 13 and 14 have pin seating grooves 131 and 141 in which the first and second power pins 23 and 24 are inserted and seated on the lower side of the rod- Shaped terminals 132 and 142 are formed on the upper outer surface of the rod-shaped body, and rod-shaped terminal portions 133 and 143 of the thin plate are formed in the upper portion of which connection holes for connecting electric wires are drilled. At this time, the socket protrusions 132 and 142 are formed in multiple stages for firmly fixing the first and second power sockets 13 and 14.

The ground socket 15 may be formed in the same structure as the first and second power sockets 13 and 14. However, the overall shape of the ground socket 15 is the same as that of the first and second power sockets, The extension portion 154 is formed.

The communication socket unit 16 is provided to detect the remaining battery level, the voltage, the temperature, etc. of the battery so as to check the state of the battery or to control the battery. The communication socket unit 16 includes a plurality of communication pins 261 And a communication socket 161.

More specifically, as shown in FIG. 2E, the communication socket unit 16 is inserted into the socket insertion hole 111 and has a plurality of communication socket insertion holes 162a through which the communication socket 161 is inserted up and down A communication socket body 162 having a first fixing protrusion 162b protruded on the outer surface thereof and a communication socket body 162 interposed between the upper base plate 11 and the upper support plate 12 to fix the communication socket body 162, And a communication socket fixing member 163 into which a first fixing jaw insertion groove 163a into which the first fixing jaw 162b of the socket body 162 is inserted is provided.

In addition, the communication socket 16 has a communication guide pin into which the communication guide pin 264 is inserted so that the connection and disconnection operations of the communication pin 261 to be described later can be stably performed as shown in FIGS. 2D and 2E. An insertion hole 164 is formed, and a communication socket connection terminal 53 to which a communication cable 52 connected to a communication unit (not shown) of a battery is connected to a lower portion of the communication socket 161, respectively.

The upper housing 17 is formed in the shape of a rectangular plate having an opening at the center by being connected to the periphery of the upper base plate 11 and contacting the lower housing 27 of the second power connection part 2 do.

2d, the upper housing 17 has a seating protrusion 171 protruding from the inner edge of the upper housing 17 so that the fitting groove 172 is formed between the upper housing 17 and the upper base plate 11, An upper engagement protrusion 173 protrudes downward and is fitted to the outer surface of the lower engagement protrusion 273 of the lower housing 27. The upper surface of the seating protrusion 171 is fastened to the upper surface So that the plate 11 is engaged.

The upper cover member 18 is coupled to the upper surface of the upper housing 17 and has a plurality of wire inlets 181 formed in a hexahedron body having a receiving space therein. The first and second power sockets 13 and 14 and the rod-like terminal portions 133, 143 and 153 of the grounding socket 15 are connected to the receiving space of the upper cover member 18 by the connecting terminals 31 of the electric wires and the fastening members, Respectively.

3B is a side view, FIG. 3C is a plan view, FIG. 3D is a longitudinal sectional view, and FIG. 3E is a side view of the battery connecting apparatus of FIG. 3A. Fig. 3F is an enlarged view of the E part in Fig. 3D. Fig.

3A to 3F, the second power connector 2 includes a lower base plate 21, a base support plate 22, a first power pin 23, a second power pin 24, and a ground pin 25. And a communication pin portion 26, a lower housing 27, a lower cover member 28, and an airtight holding member 27a.

The sleeve span 21 is formed in a substantially rectangular plate shape by an insulating material and has a plurality of pin insertion holes 211 formed in the center thereof in the transverse direction.

As shown in FIGS. 3D and 3F, the first pin seating step 212 is formed on the upper side of the pin insertion hole 211 so that the lower part of each of the projecting parts 232, 242, And a fastening hole 213 into which the fastening member is inserted is formed for the fastening of the lower plate 21. At this time, the first pin-seating jaw 212 is pressed against the first and second power pins 23 and 24, the ground pin 25, and the communication pin 26, 1 and the second power supply pin, the ground pin, and the communication pin are prevented from being pushed downward or away from each other.

The base plate 22 is a member coupled to the upper surface of the harvester plate 21 and is formed in the shape of a rectangular plate by an insulating material similar to a Harvester plate and includes first and second power pins 23 and 24, And the second communication hole 221 into which the first and second power pins 23 and 24 and the ground pin 25 are inserted are formed in the first communication hole 25 and the communication pin portion 26, And a second pin seating step 222 is formed at a lower portion of the ground pin 221 to receive a first power pin and a second power pin, which will be described later, and an upper portion of a projection of the ground pin. In this case, the second pin seating jaw 222 is connected to the first and second power sockets 13 and 14 and the ground socket 15, and then the first power connecting part 1 is separated from the upwardly- So that the first and second power pins and the ground pin are prevented from being separated upward.

The first and second power pins 23 and 24 are installed in the pin insertion hole 211 of the harness plate 21 and the second communication hole 221 of the base plate 22 and are connected to the first and second power sockets 13 and 14, and is formed of a conductive material.

The first and second power pins 23 and 24 include insertion portions 231 and 241 that are inserted into the first and second power sockets on the upper portion of the bar-shaped body having a round bar shape, protrusions 232, 242), and rod-like terminal portions 233, 243 of a thin plate which are extended at the lower end of the rod-like body and into which connection holes for connecting electric wires are drilled.

The ground pin 25 is formed to have the same overall structure as that of the first and second power pins 23 and 24 in the outer shape. However, when the first and second power connection portions 1.2 are connected, 24 are connected to the ground socket 15 before the power pins 23 and 24 are connected to the first and second power sockets 13 and 14, h, see Fig. 3f) is formed long.

The communication pin portion 26 is provided in the pin insertion hole 211 of the sleeve plate 21 and is connected to the communication socket portion 16 as shown in Figs. A plurality of communication pins 261 are provided.

The communication pin portion 26 is inserted into the pin insertion hole 211 and has a plurality of communication pin insertion holes 262a through which the communication pin 261 is inserted, And a second fixing jaw insertion groove 263a which is interposed between the harness plate 21 and the lower plate 22 and into which the second fixing jaw 262b is inserted is inserted into the communication pin body 262, 262) of the communication pin fixing member (263).

The communication pin 26 is provided with a communication guide pin 264 so that connection and disconnection operations of the communication pin can be performed stably. A communication cable 264 is connected to the communication pin 261, And a communication pin connection terminal 51 to which the connection terminal 52 is connected.

The lower housing 27 is formed in the shape of a rectangular plate which is coupled to the edge portion of the harness span 21 and has an opening at the center in a configuration in which the lower housing 27 is in contact with the upper housing 17 of the first power connection portion 1.

The lower housing 27 is formed with guide pin mounting holes 274 on both sides of which guide pins 29 to be described later are mounted and is inserted into the fitting grooves 172 of the upper housing 17, (273) protrudes upward. In addition, a groove 273a is formed on the outer surface of the lower engaging protrusion 273 for mounting the hermetic retaining member 27a.

The lower cover member 28 is configured to be coupled to the bottom of the lower housing 27 by an O-ring in a watertight manner. The lower cover member 28 has a hexahedron- Not shown) are formed in a perforated structure. The first and second power supply pins 23 and 24 and the rod-shaped terminal portions 233, 243 and 253 of the grounding pin 25 are inserted into the accommodating space of the lower cover member 28 with the connection terminal 31 of the electric wire 3, Respectively.

The airtightness maintaining member 27a is configured to block the inflow of water into the first and second power connection portions 1 and 2 while the first and second power connection portions 1 and 2 are connected to each other. And an O-ring inserted into the O-ring.

FIG. 4 is an enlarged exploded perspective view of part A of FIG. 1A. As shown in FIGS. 2d, 3d, and 4, the battery connecting apparatus according to an embodiment of the present invention includes first and second power connection parts 1 and 2 A guide pin insertion hole 176 is formed in the edge portion of the upper housing 17 so as to stably perform the connection and separation operation of the guide pin 191. A guide hole 191 is formed below the guide pin insertion hole 176 And a guide pin 274 is inserted into the guide pin insertion hole 176 of the lower housing 27 so as to be inserted through the pin guide portion 19 and inserted into the guide pin insertion hole 176. [ 29 are provided so as to protrude upward.

The guide pin 29 is formed in a structure in which a predetermined position groove 291 is formed in the outer peripheral surface of a body having a circular rod shape and the pin guide portion 19 is formed in a position corresponding to the fixed position groove 291 A hole 192 inserted into the mounting hole 192 and a seating ball 193 inserted into the mounting hole 192 and seated in the fixed position groove 291 and an elastic member inserted into the mounting hole 192 to apply an elastic force to the seating ball 193. [ And a pressing bolt 195 such as a mood bolt fastened to the outside of the mounting hole 192 are provided.

The guide pin insertion hole 176 is provided with a guide bushing 177 for performing stable insertion and removal of the guide pin 29 as shown in FIG. 2d. The guide bushing 177 is structured such that a stopping ring portion 177b is formed at the upper and lower ends of a cylindrical bushing body 177a having a hole for insertion of the guide pin 29. The outer diameter of the bushing body 177a is larger than the outer diameter of the guide pin 177a, (Formed to have a tolerance in the range of about 1 to 2 mm) smaller than the inner diameter of the insertion hole 176 and can be moved on the guide pin insertion hole 176, thereby inserting and separating the guide pin 29 So that it can be smoothly performed.

On the other hand, reference numeral 5 in FIG. 1A to FIG. 2D and FIG. 3A to FIG. 3D denotes a cable fixing cap.

Hereinafter, the operation of the battery connecting apparatus according to an embodiment of the present invention will be described.

The battery connecting apparatus according to the present invention is a battery connecting apparatus comprising a charging unit (not shown) provided in a charging station, which is equipped with the second power connection unit 2 as a power supply unit and has a first power connection unit 1 mounted thereon, It is possible to connect the first power connection unit 1 to the second power connection unit 2 to charge the battery while charging the battery. Hereinafter, the second power connection unit 2 is connected to the battery mounting unit (not shown) And attaching or detaching the charged battery to or from the bus while the first power connection unit (1) is mounted on the battery.

As shown in FIG. 1A, when the battery is moved downward from the battery mounting portion of the electric vehicle using a battery exchange device (not shown) equipped with a clamping device for holding the battery, The mounted first power connection part 1 is lowered toward the second power connection part 2.

When the first power connection part 1 is lowered, the lower coupling protrusion 273 of the lower housing 27 is inserted into the fitting groove 172 of the upper housing 17 as shown in FIGS. 2d and 3d At the same time, is meshed with the phase locking projection 173 so as to intersect with each other and is watertightly connected by the hermetic retaining member 27a. At this time, since the guide pins 29 protruding from both edge portions of the lower housing 27 are inserted into the guide holes 191 of the pin guide portion 19 and inserted into the guide pin insertion holes 176, And the second power connection part (1, 2) are stably and precisely performed without shaking.

The first power socket 13, the second power socket 14, the ground socket 15, and the second power socket 14 are coupled to each other when the upper base plate 11 and the upper support plate 12 are lowered as the upper housing 17 descends. The communication socket portion 16 is also lowered so that the first and second power pins 23 and 24, the ground pin 25 and the communication pin portion 26 are connected to each other.

The first power socket 13, the second power socket 14 and the ground socket 15 are fixed to the first socket mounting step 112 formed on the upper base plate 11, Since the first and second power pins 23 and 24 and the ground pin 25 are fixed to the first pin seating step 212 formed in the second power connecting part, Each socket and pin is stably supported without being detached.

2E and 3E, the communication socket unit 16 includes a communication socket fixing member 163 interposed between the upper base plate 11 and the upper support plate 12, And the communication pin portion 26 is fixed to the communication pin fixing member 263 interposed between the harness plate 21 and the back plate 22 by a communication pin 261 to which the communication pin 261 is coupled. Since the body 262 is fixed, the detachment of the communication socket 161 and the communication pin 261 is prevented even if the impact force is transmitted to both the first and second power connection parts 1,2.

In particular, the first and second power connection parts 1 and 2 described above have a length longer than that of the first and second power pins 23 and 24 in the connection process, as shown in FIG. 3F. Therefore, the first and second power pins 23 and 24 are first connected to the ground socket 15 before being connected to the first and second power sockets 13 and 14, thereby preventing electric safety accidents caused by poor grounding. There is an advantage to this.

When the first and second power connection units 1 and 2 are connected to each other as described above, the power charged in the battery is supplied to the first and second power pins 23 and 24 through the first and second power sockets 13 and 14, 24, and then supplied to a power supply point such as a driving motor of the electric vehicle. The battery remaining amount, voltage, temperature, etc. of the battery are transmitted to the communication pin 261 and the communication cable 52 through the communication socket 161, and then applied to the drive control unit of the electric vehicle.

When the battery mounted on the electric vehicle is discharged and replaced, the clamping device of the battery exchange device grasps and lifts the battery, so that the battery is detached from the battery loading part. Thus, the first power connecting part 1 mounted on the battery And disconnected from the power connection part (2).

At this time, the upper and lower housings 17 and 27 of the first and second power connection parts 1 and 2 are guided by the guide pin 29 so that stable separation can be performed, The first power socket 13, the second power socket 14 and the ground socket 15 are fixed to the second socket-seating step 122 formed on the upper support plate 12 at the time of the movement, Since the first and second power pins 23 and 24 and the ground pin 25 are fixed to the second pin seating jaw 222 formed, even though the pulling force is transmitted to both sides in the process of separating the first and second power connection portions The disengagement of each socket or pin is prevented. The communication socket portion 16 and the communication pin portion 26 are fixedly connected to the first and second power connection portions 1 and 2 by the fixing action of the communication socket fixing member 163 and the communication pin fixing member 263 as in the above- 2, the separation of the communication socket 161 and the communication pin 261 is prevented even if the pulling force is transmitted to both sides.

It is to be understood that the present invention is not limited to the above-described embodiment, and that various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: first power connection part 11: upper base plate
12: upper support plate 13: first power socket
14: second power socket 15: ground socket
16: communication socket section 17: upper housing
18: upper cover member 19: pin guide portion
2: second power connection 21: harness span
22: Not Fingerboard 23: First power pin
24: second power supply pin 25: ground pin
26: communication pin 27: lower housing
27a: Hermetic holding member 28: Lower cover member
29: Guide pin 3: Wires
31: Connector

Claims (7)

A battery connecting device comprising a first power connection part and a second power connection part electrically connected to the first power connection part,
The first power connection unit includes an upper base plate having a plurality of socket insertion holes, a first power socket installed in the socket insertion hole, a second power socket, a ground socket, and a communication socket part including a plurality of communication sockets. ,
The second power connection portion is provided with a lower base plate having a plurality of pin insertion holes, first and second power pins installed in the pin insertion holes and connected to the first and second power sockets, and installed in the pin insertion holes. A grounding pin connected to a grounding socket, and a plurality of communication pins provided in the pin insertion hole and connected to the communication socket ,
The first and second power sockets, the ground socket is made of a structure in which a socket step is formed on the upper outer surface of the rod-shaped body having a pin seating groove,
The upper base plate has a first socket seating jaw formed in the socket insertion hole so that the socket step is engaged, and the first and second power sockets, the ground socket, and the communication socket part are formed on the bottom surface of the upper base plate. An upper support plate having a first communication hole communicating therebetween is coupled to each other, but a second socket seating jaw is formed at an upper end of the first communication hole and the lower end of the ground socket is engaged.
The first and second power pins, the ground pin is made of a structure having a protrusion on the outer peripheral surface of the rod-shaped body,
The lower base plate has a first pin seating jaw is formed on the upper side of the pin insertion hole so that the lower portion of the protrusion is engaged, the first and second power pins, the ground pin, the communication pin and the upper surface of the lower base plate And a second pin seating jaw configured to engage a base plate having a second communication hole communicating therewith, wherein a second pin seating jaw is formed at the upper portion of the protrusion in the second communication hole.
The method of claim 1,
The ground pin is formed to have a longer length than the first and second power pins so that the ground pin can be connected to the ground socket before the first and second power pins when the first and second power connection portions are connected Battery connection device.
delete The method of claim 1,
Wherein the communication socket unit comprises: a communication socket body inserted into the socket insertion hole and having a plurality of communication socket insertion holes through which the communication socket is inserted, the communication socket body having a first fixing protrusion protruded on an outer surface thereof; And a communication socket fixing member interposed between the upper fixing plate and the upper supporting plate to fix the communication socket body,
The communication pin unit is inserted into the pin insertion hole and a plurality of communication pin insertion holes through which the communication pin is inserted, the communication pin body through which the second fixing jaw protrudes upward and downward, and the second fixing jaw is inserted. And a communication pin fixing member interposed between the lower base plate and the lower support plate to fix the communication pin body.
The method according to any one of claims 1, 2, and 4,
Wherein the first power connection portion includes an upper housing coupled to an edge portion of the upper base plate and protruding downward from the upper housing base so as to have a fitting groove between the upper housing and the upper base plate, And an upper cover member formed in the body such that a plurality of wire inlets are perforated to be coupled to an upper surface of the upper housing,
The second power connection portion is coupled to the edge portion of the lower base plate and the lower housing has a lower coupling protrusion protruding upwards to be inserted into the fitting groove, a plurality of wire inlets are drilled in the hexahedron-shaped body provided with a receiving space therein. And a lower cover member coupled to a bottom surface of the lower housing and an airtight holding member inserted into a recess recessed in an outer surface of the lower coupling protrusion.
6. The method of claim 5,
A guide pin insertion hole is formed in an edge portion of the upper housing, a pin guide portion having a guide hole is provided below the guide pin insertion hole,
And a guide pin inserted through the pin guide portion and protruding from the lower housing to be connected to the guide pin insertion hole.
The method according to claim 6,
The guide pin is formed in a structure in which the groove is recessed in the outer peripheral surface of the body having a round bar shape,
A guide bushing is installed to have a clearance in the guide pin insertion hole so that the insertion and removal of the guide pin can be performed smoothly.
The pin guide part includes an installation hole formed at a position corresponding to the home position groove, a seating ball inserted into the installation hole to be seated in the home position groove, and an elastic member inserted into the installation hole to apply elastic force to the seating ball. And a pressurizing bolt fastened to the outside of the installation hole.

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