KR100693132B1 - Relay operation checking device of junction box - Google Patents

Abstract

An apparatus for inspecting the operation of a relay inserted in a junction box is provided to increase work efficiency and reliability of products by inspecting the connection and operation states of the correspondent relay and a current applying state of a bus bar inserted with the correspondent relay at the same time. An apparatus for inspecting the operation of a relay inserted into a junction box(10) for a vehicle is composed of a lower inspection plate(130) positioned at the lower side of the junction box having an upper case in which plural relays are inserted, and provided with at least one contact pin(131) coupled to connection terminals of a lower case electrically connected with a power pin and a switch pin of the correspondent relay; an operating power applying device(150a) turning on the correspondent relay by applying operating power to the connection terminals of the lower case connected to the power pin of the correspondent relay through the contact pin of the lower inspection plate; a test power applying device(150b) applying test power to the connection terminals of the lower case connected to the switch pin of the correspondent turned-on relay, through the contact pin of the lower inspection plate; and a conduction sensing device(160) detecting the conduction state of the test power at the contact pin of the inspection plate contacted with the corresponding connection terminal of the lower case connected with the switch pin of the relay of the upper case.

Description

RELAY OPERATION CHECKING DEVICE OF JUNCTION BOX}

1 is an exploded perspective view showing the structure of a junction box to which the present invention is applied.

Figure 2 is a plan view showing a relay arrangement state of the junction box upper case to which the present invention is applied.

Figure 3 is a plan view showing a connection terminal arrangement state of the junction box lower case to which the present invention is applied.

Figure 4a is a perspective view showing a relay to which the present invention is applied.

Figure 4b is a plan view showing a relay to which the present invention is applied.

5 is a view showing an operation test apparatus of a relay inserted into a junction box to which the present invention is applied.

6 is a view showing an operation test state of the relay to which the present invention is applied.

<Description of the symbols for the main parts of the drawings>

10: junction box 11: upper case

12: lower case 13: circuit board

13a: insulation plate 13b: metal bus layer

14: input / output connector 15: connection terminal

16: Mini Fuse Insertion Receptacle 17: Relay Insertion Receptacle

18: mini-fuse 19: relay

19a, 19b: relay power pin 19c, 19d: relay switch pin

20: MIDI fuse 30: S / B fuse

120: fixing device 130: lower inspection plate

131: contact pin 140: drive device

150a: operation power supply device 150b: test power supply device

160: energization detection device 170: memory device

180: monitoring device 190: warning device

The present invention relates to an operation test apparatus for a fuse inserted into a junction box. The present invention relates to an operation test of a plurality of relays inserted into a junction box through a contact pin to which an operating power source and a test power source are applied. It can check the connection and operation as well as the energization status of the busbar to which the corresponding relay is inserted at the same time, thus increasing the efficiency and product reliability of the junction box mass production, reducing the defective rate and reducing the overall working time. It relates to a device for checking the operation of a relay inserted in a box.

In general, the electric device of the vehicle can be compared to the nervous system, and the electric vehicle can only properly exhibit its performance until the electric device is normally operated.

The electric device of such a vehicle can be divided into an engine-side device and a vehicle-side device. The engine-side device includes an ignition device consisting of an ignition coil, a distributor high voltage cable, a spark plug, and a charging device including a generator and a regulator. In addition, the vehicle-side electric device includes a battery, a lighting device for lighting, a sign, a signal, an instrument warning display device and an air conditioner / heating device installed in an instrument panel, and the like.

All of the vehicle's electrical devices are wired and connected to the electronic control unit (ECU) in the engine room of the vehicle. At this time, a junction box is used as an intermediate medium for connecting the wires and the ECU to each other. Is used.

1 is an exploded perspective view showing the structure of a junction box to which the present invention is applied.

As shown in FIG. 1, the junction box 10 includes an upper case 11 into which various elements such as a minifuse 18, a relay 19, a midi fuse 20, and an S / B fuse 30 are inserted. The lower case 12 into which the input / output connector 14 is inserted is provided as an outer case, and a plurality of circuit boards 13 are stacked between the upper case 11 and the lower case 12. It is configured by being inserted.

In this case, the circuit board 13 distributes the current input between the insulating plates 13a by allowing one metal bus layer 13b to be surface-coupled to one insulating plate 13a. A plurality of circuit boards 13 are stacked and inserted into several layers.

The metal bus layer 13b is formed with connection terminals 15 which are bent upwards or downwards, and protruded through the circuit boards 13 stacked on top of the upper connection portions 15. 11 are selectively connected by various mini-fuse 18, relay 19, midi fuse 20, S / B fuse 30, etc., and protrude downward, and the connection terminals 15 protrude downward. 12 to be connected to the input / output connector 14.

In general, the junction box for a vehicle 10 is installed at one side of an engine room of a vehicle or an interior of a vehicle. In order to prevent excessive current from flowing through the electric equipment, the current is melted instantaneously when a current exceeding a specified value melts, thereby blocking this. Fuses 18, 20, 30, or relays 19, which are activated when the input reaches a value, open and close other circuits, are provided. In addition, fuses and relays installed in the junction box are installed in accordance with the allowable current of the electric component, and the fuses and relays are installed in series in the circuit.

At this time, in the actual manufacturing process, these relays 19 are automatically fastened to the upper case 11 of the junction box 10 by an automated fastening process, because a large number of relays 19 are fastened at once. It is necessary to confirm whether or not the relay 19 is properly inserted into the connection terminal 15 on the upper case 11 and operable.

However, in order to find out whether these relays can be inserted and operated correctly in the actual process, there was no measure other than checking the insertion state by the operator's eyes, so a lot of working time in the process for mass production of the junction box In addition, delay and inefficiency of the inevitably occurred, and furthermore, the operator's visual insertion status checking operation for such a large number of relays is not really reliable, and thus the reliability of the finished product is also significantly lowered and defects are inevitable. have.

The present invention has been made to solve the above problems, its purpose is to check the operation of a plurality of relays (Relay) to be inserted into the junction box through the contact pin to which the operating power and test power is applied to the corresponding relay Can check the connection and operation of the bus bar as well as the energization status of the busbar to which the relay is inserted, thereby increasing the efficiency and product reliability of the junction box mass production, reducing the defective rate and reducing the overall working time. It is to provide a device for checking the operation of a relay inserted in a junction box.

The operation inspection apparatus of the relay inserted into the junction box according to the present invention for achieving the above object, in the inspection device for inspecting the operation of the relay inserted on the upper upper case in the vehicle junction box, the upper upper in the junction box Bottom inspection with at least one contact pin located at the bottom of the junction box with a number of relays inserted on the case and in contact with the connection terminals of the lower lower case electrically connected to the power pins and switch pins of the relay. plate; An operating power supply device for applying the operating power to the connection terminals of the lower case connected to the power pin of the corresponding relay through the contact pin of the lower test plate to turn on the corresponding relay; A test power supply device for applying predetermined test power to connection terminals of a lower case connected to a switch pin of a corresponding turn-on relay through a contact pin of the lower test plate; And an energization detecting device for detecting whether the test power is turned on at a contact pin of a test plate in contact with a corresponding connection terminal on a lower case connected to a switch pin of a relay on the upper case. Characterized in that it comprises a.

Preferably, the driving device for moving the lower test plate to move up and down so that the contact pin provided on the plate selectively contacts the connection terminal of the lower lower case; It characterized in that it further comprises.

More preferably, it characterized in that it further comprises a fixing device for performing the fixing and position correction function so that the junction box which is a moving target of the lower test plate is positioned at a predetermined inspection position.

Hereinafter, with reference to the accompanying drawings will be described an operation inspection apparatus of a relay inserted in the junction box according to a preferred embodiment of the present invention.

2, a plurality of relays 19 are disposed in the upper case 11 of the junction box 10.

Corresponding relays 19 are 4-pin relays or 5-pin relays. The role of the relays 19 serves to remotely control or automatically control the energization state of another circuit (switch) by using the current variation of one circuit (a circuit to which a voltage is applied).

The relay 19 inserted into the upper case 11 is connected to the metal bus layer 13b of the circuit board 13 stacked in the junction box 10 to protrude into the lower lower case 12. Electrical connection is made with (15).

The arrangement of the connection terminals 15 of the lower case 12 forming a connection relationship with the relays 19 on the upper case 11 and the metal bus layer 13b is shown in FIG. 3. The input / output connector 14 is later connected to the connection terminals 15 protruding from the lower case 12.

At this time, the relay operation inspection apparatus of the present invention, which is a task for confirming whether the relay 19 is properly inserted into the connection terminal 15 protruding on the upper case 11 and operating properly in the insertion state. Explain.

In fact, it is a very inefficient way to check whether the relays 19 on the upper case 11 are properly inserted and operated properly by the operator's eyes and hands, which consumes much time and of course accuracy. It is true that it falls considerably.

First, a basic relay configuration using a 4-pin relay as an example will be described with reference to FIGS. 4A and 4B.

That is, power for turning on the relay 19 is drawn into the relay power pins 19a and 19b of the relay 19, and when the power is applied to the relay power pins 19a and 19b, The electromotive force causes the corresponding relay switch pins 19c and 19d to operate the circuit to be connected. On the contrary, when no power is applied to the relay power pins 19a and 19b of the relay 19, the relay power pins 19a and 19b are disconnected from each other to stop the operation of the circuit.

This basic relay configuration is almost the same as that of the 5-pin relay, and operates according to the basic principle of controlling the operation state of the circuit depending on whether power is applied.

Therefore, it is quite difficult to check whether the relay 19 is properly inserted and properly operable with the relay 19 already inserted on the upper case 11.

The operation inspection apparatus of the relay inserted in the junction box according to the preferred embodiment of the present invention to overcome this is fixed device 120, lower inspection plate 130, drive device 140, operation as shown in FIG. The power supply device 150a, the test power supply device 150b, the energization detecting device 160, the memory device 170, the monitoring device 180 and the warning device 190 is configured to include.

The fixing device 120 functions to fix the junction box 10 which is transferred or directly seated through a fan belt or the like at a predetermined position. The fixing device 120 allows the junction box 10 to be positioned at a predetermined inspection position with the upper case 11 in which the relays 19 of the junction box 10 are inserted to face upward. . In addition, such a fixing device 120 may preferably perform a function of finely moving the position of the junction box 10 so that the junction box 10 may be accurately positioned at a predetermined inspection position.

The lower inspection plate 130 has a plurality of contact pins 131 protruding toward the lower case 12 of the junction box 10 positioned at the inspection position determined by the fixing device 120. Move to the lower case 12 side of the junction box 10 so that each contact pin 131 is in contact with the connection terminal 15 protruding to the lower case 12 of the junction box 10.

In other words, the respective contact points for the plurality of relays 19 inserted in the upper upper case 11 of the junction box 10 are eventually lowered through the metal bus layer 13b in the junction box 10. 1 to 1 correspond to each of the connection terminals 15 protruding from the case 12.

Therefore, in order to check whether the relays 19 on the upper case 11 are properly inserted and operate properly, the connection terminals 15 protruding from the lower case 12, which is a connection contact corresponding to the relays 19, are provided. It is desirable to check whether or not the proper insertion and operation of the corresponding relays 19 are possible by applying a predetermined test power to the power supply).

To explain this more easily, one relay 19 is inserted into the upper case 11 as shown in FIG. 6, but the relay power pins 19a and 19b and the relay switch pin 19c, 19d is connected to the four connecting terminals 15 protruding from the lower lower case 12 through the metal bus layer 13b in the junction box 10. In the state where the contact pins 131 are in contact with each other, the operating power is applied to the relay power pins 19a and 19b to turn on the corresponding relay, and a predetermined test power is applied to the relay switch pins 19c and 19d to confirm that the power is applied. By grasping this, it is possible to know whether the relay 19 is properly inserted and whether the relay 19 can be operated as a relay (switching operation).

At this time, the four connection terminals 15 of the lower lower case 12 forming the connection contact points with the relay power pins 19a and 19b and the relay switch pins 19c and 19d in one relay 19 must be adjacent to each other. It may not be, and may be located at a considerable distance from each other in the lower case 12.

On the other hand, the lowering operation of the lower test plate 130 is made by the driving force in the driving device 140, the driving device 140 moves the lower test plate 130, the test pin 131 ) Are precisely adjusted to contact the connection terminal 15 protruding from the lower case 12.

Next, the operating power supply device 150a is connected to the lower power supply terminals 19a and 19b of the upper relay 19 among the contact pins 131 of the lower test plate 130. The corresponding relay 19 is turned on by applying a predetermined relay operation power source through the contact pins 131 to the corresponding connection terminals 15.

In addition, the test power supply device 150b corresponds to a lower case connected to the relay switch pins 19c and 19d of the upper relay 19 among the respective contact pins 131 of the lower test plate 130. A predetermined relay test power is applied to the corresponding connection terminals 15 of 12 through the contact pins 131 to prepare whether the relay operates properly when the relay 19 is turned on.

As the operation power supply device 150a turns on the relay 19 and the test power supply device 150b applies the test power to the power path according to the switched-on state of the relay 19. The energization detecting device 160 controls each relay through whether power is supplied between two connection terminals 15 corresponding to contacts on the lower case 12 to the relay switch pins 19c and 19d of each relay 19. It is possible to check whether or not the correct insertion of 19) can be performed as a relay, and to check the correct connection state of the metal bus layer 13b connected to the corresponding relay.

Of course, a plurality of contact pins 131 of the lower test plate 130 are provided to inspect a plurality of relays at one time, and operating power and test power are also applied to the respective relays 19 at the same time. The relay operation check for one junction box 10 is performed.

6, the contact pins 131 of the lower inspection plate 130 come into contact with the connection terminals 15 positioned below the junction box 10.

At this time, the pins of the upper relays 19 and the lower connection terminals 15 are electrically connected to each other by the metal bus layer 13b, and the relay power pins 19a and 19b of the upper relay 19 are connected to each other. A predetermined relay operating power is applied to the corresponding connection terminals 15 of the connected lower case 12 through the contact pins 131 to turn on the corresponding relay 19, and also relay switch pins 19c of the upper relay 19. By applying a predetermined test power to the corresponding connection terminals 15 of the lower case 12 connected to 19d through the contact pin 131, it is determined whether the corresponding relay 19 is operable or not. 160 will be detected.

For example, when a normal relay is inserted, the operating power from the operation power applying device 150a is output through the contact pins 131 of the lower test plate 130 to correspond to the connection terminals 15 on both sides of the lower side. While entering the relay power pins 19a and 19b of the relay 19 to turn on the corresponding relay 19, the power from the test power supply device 150b is connected to the contact pins 131 of the lower test plate 130. Is outputted through the lower connection terminal 15 to the relay switch pin of the corresponding relay 19, which is again connected to the other connection terminal 15 under the corresponding junction box 10 along the predetermined conduction path of the metal bus layer 13b. Out from the other contact pin 131 of the lower test plate 130.

In this case, the driving pin 140 of the lower test plate 130 so that the lifting height is raised only to the extent that the end of the contact pin 131 is in contact with the lower end of the connection terminal 15. Will control the lifting operation.

Therefore, when the relay 19 is not inserted normally, the flow of test power between the contact pins 131 and the contact pins 131 of the lower test plate 130 is disconnected and is not continued.

The energization detecting device 160 detects the flow of the test power to check whether the relay 19 is properly inserted and operated and the energization state of the metal bus layer 13b as a whole. Whether the connection between the relays 19 on the box 10 and the connection terminal 15 on the bottom of the junction box 10 is properly made can be checked at once.

In the memory device 170, a plurality of relays capable of confirming the energization of each relay 19 with respect to the state in which the relays 19 are correctly inserted into the junction box 10 can be checked. The position values of the power pins and the switch pins for the relays and the corresponding connection terminals 15 below the junction box 10 are stored, so that the correct position of the lifting drive of the corresponding lower inspection plate ( Accurate contact position) and the energization detection device 160 is used for checking the energization state.

That is, in the memory device 170, the position values of the lower connection terminals corresponding to the four pins 19a, 19b, 19c, and 19d of each relay 19 (four lower connection terminal position values for one relay). ) Is stored, the energization detecting device 160 through this it is possible to confirm the respective energized position corresponding to each preferably and to confirm the correct energized state.

The monitoring device 180 is visually displayed as a result of the conduction state check operation transmitted from the energization detection device 160, the operator of the process can immediately determine whether the bad relay is inserted.

The correct insertion of the relay identified in the energization detecting device 160 is visually displayed on the monitoring device 180 and is visually recognized by the operator through the warning device 190, so that the worker is not immediately correct. The insertion state of the relay (bad connection junction box) can be checked through sight and hearing.

This warning device 70 is preferably a general acoustic speaker, it may be configured to give a more reliable visual failure warning effect made of a flashing beacon.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawing.

As described above, the operation inspection apparatus of the relay inserted in the junction box shown in the present invention, through the contact pin to which the operating power and the test power is applied whether the operation of a plurality of relays (Relay) inserted into the junction box By inspecting the connection and operation of the relay as well as the energization state of the busbar into which the relay is inserted, the efficiency of work process and product reliability, the failure rate and the overall working time according to the mass production of the junction box can be improved. This has the effect of shortening.

Claims (3)

In the inspection device for inspecting the operation of the relay inserted on the upper upper case in the vehicle junction box, At least one or more lower portion of the junction box which is positioned below the junction box in which a plurality of relays are inserted on the upper upper case and contacts the connection terminals of the lower lower case electrically connected to the power pin and the switch pin of the corresponding relay. A lower test plate provided with a contact pin; A driving device for moving the lower inspection plate up and down to allow the contact pins provided on the plate to approach the lower portion of the junction box to selectively contact the connection terminals of the lower lower case; A memory device for storing the position values of the corresponding connection terminals below the junction box corresponding to the power pins and the switch pins of the corresponding relays for each of the relays inserted on the upper case of the junction box; By using the position value of the lower connection terminal connected to the power pin stored in the memory device, the operating power is applied to the connection terminals of the lower case connected to the power pin of the corresponding relay through the contact pin of the lower test plate to turn on the corresponding relay. An operating power applying device to make it; A test for applying a predetermined test power to the connection terminals of the lower case connected to the switch pin of the turn-on state relay through the contact pins of the lower test plate by using the position values of the switch pin connection lower connection terminals stored in the memory device. A power applying device; And An energization detecting device for detecting whether the test power is turned on at a contact pin of a test plate in contact with a corresponding connection terminal on a lower case connected to a switch pin of a relay on the upper case; Motion inspection apparatus of the relay is inserted into the junction box comprising a. delete The method of claim 1, And a fixing device configured to perform a fixing and position correction function such that the junction box serving as the moving target of the lower test plate is positioned at a predetermined inspection position.

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