CN105092902B - Electric system switching on/off handcart examines auxiliary device - Google Patents

Abstract

The invention discloses an auxiliary device for inspection of a switch handcart in a power system. The conductive pins on the box are set accordingly. The rectifier circuit and the AC power line of the rectifier circuit are installed in the box. The conductive tube holes include at least the power storage positive tube hole, the power storage negative tube hole, the conductive self-locking positive tube Tube hole, conductive self-locking negative tube hole, power-on tube hole, power-off tube hole and public tube hole, wherein the power storage positive tube hole and the conductive self-locking positive tube hole are electrically connected to the positive output end of the rectifier circuit, and the power storage The energy negative tube hole and the conductive self-locking negative tube hole are electrically connected to the negative output terminal of the rectifier circuit, and the tube hole power lines are respectively connected to the power tube hole, the power off tube hole and the common tube hole. During the test of the switch handcart, it is convenient to carry out the test wiring, is not easy to make mistakes, has high reliability, and is easy to operate, saving time and effort.

Description

Power system switch handcart inspection auxiliary device

technical field

The invention relates to a power system switch handcart inspection auxiliary device.

Background technique

With the rapid development of social economy, the modernization level of electrical equipment of local power supply companies is also constantly improving. In order to meet the needs of the society, new equipment must be installed and old equipment must be upgraded. At present, the number of 35kV HD4, VD4 and 10kV HD4, VD4 switchgear control equipment newly installed by prefecture-level city power supply companies and replaced by old equipment is increasing rapidly, generally around 2,300, and there will be more in the future. To keep increasing. During normal power outage maintenance, it is not safe and inconvenient to do on-site detection and testing of the switchgear control equipment, and the work efficiency is very low. When the power fails, after the switch handcart is pulled out from the cabinet, it will be completely separated from the switch cabinet, and the secondary power supply will be disconnected immediately. As a result, the detection and test work of the switch handcart is more difficult. Since the HD4 type and the VD4 type are different types of cabinet-type handcart equipment, although the terminal bases connected to them are the same, the arrangement order and position of the internal conductive pins are different, so it is more difficult to distinguish them during the switch handcart test. , It is very easy to connect the wrong wire and cause an accident. The traditional operation method: one is to manually push the heavy switch handcart, align the switch handcart with the switch cabinet, then push the handcart to the door of the cabinet, and finally insert the terminal into the corresponding built-in power socket, the operation is time-consuming and laborious; There is no special connecting device for inspection. Another method is to use one more person to hold the other end of the control cable and touch the conductive pin of the terminal with a single one. Because the conductive needles are all exposed, it is unsafe and time-consuming to do so. If the two people do not cooperate well, there is a risk of low-voltage electric shock. If there is a total power outage or a large-scale power outage, the workload will be very large and the efficiency will be very low.

Contents of the invention

The purpose of the present invention is to solve the above technical problems, to provide a power system switch handcart inspection aid with reasonable structure, convenient test wiring, less error-prone, high reliability, simple operation, time-saving and labor-saving during the switch handcart test device.

In order to solve the above-mentioned technical problems, the structural features of the present invention are as follows: a box body with a cavity inside is provided, the box body is provided with conductive tube holes that cooperate with the conductive pins of the connector, and the conductive tube holes are connected with the conductive pins evenly distributed on the connector. The conductive pins are arranged accordingly, and the rectifier circuit and the AC power line of the rectifier circuit are installed in the box. The conductive tube holes include at least the power storage positive tube hole, the power energy storage negative tube hole, and the conductive self-locking positive tube hole. , conductive self-locking negative tube hole, power-on tube hole, power-off tube hole and public tube hole, wherein the power storage positive tube hole and the conductive self-locking positive tube hole are electrically connected to the positive output end of the rectifier circuit, and the power storage negative tube hole The tube hole and the conductive self-locking negative tube hole are electrically connected to the negative output terminal of the rectifier circuit, and the tube hole power lines are respectively connected to the power-on tube hole, the power-off tube hole and the common tube hole.

This electric power system switch handcart inspection auxiliary device uses a porous corresponding plug-in structure to realize convenient test wiring during the switch handcart test, which is not easy to make mistakes, has high reliability, and is easy to operate, saving time and effort.

The porous type corresponding plug-in structure mainly includes a box body corresponding to the wiring head, and conductive tube holes corresponding to the conductive pins of the wiring head are evenly distributed on the box body, and there are also electrical connection holes corresponding to the conductive tube holes in the box body. Rectifier circuit and tube hole power cord. The two output wires of the rectifier circuit are electrically connected to the power storage positive tube hole and the power storage negative tube hole respectively, so that when the conductive pin of the connector is inserted into the power storage positive tube hole and the power storage negative tube hole When it is in the tube hole, the external power supply will be rectified by the rectifier circuit to charge and store the energy storage device of the motor connected to the head end, so that the charging and charging test can be completed conveniently and quickly. The conductive self-locking positive tube hole and the conductive self-locking negative tube hole are also electrically connected to the output end of the rectifier circuit, so that the rectifier circuit can control the switch handcart at the terminal end through the conductive self-locking positive tube hole and the conductive self-locking negative tube hole The device moves to complete the closing and locking test. Similarly, the power-on tube hole, the power-off tube hole and the common tube hole respectively obtain power supply or control signals through the corresponding tube hole power lines, and control the action of the switch handcart equipment at the terminal end through the plug-in matching conductive pin of the terminal head. In order to complete the closing test and opening test. When the present invention is in use, it only needs to connect the wiring head and the box body to supply power or send control signals to the corresponding conductive pins of the wiring head, so as to complete the relevant test of the switch handcart, which not only saves time and effort, but is also not easy to operate. Make mistakes, the connection is safe and reliable, which helps to improve the efficiency of the test.

As an improvement, a power connector is installed on one side of the box, two AC power lines for the rectifier circuit, the power line for the power-on tube hole, the power line for the power-off tube hole, and the tube hole power supply for the common tube hole. The wires are correspondingly electrically connected to the conductive pins of the power connector.

After the power supply connector is provided on the box body, the quick connection and quick disconnection of the power cord and the box body can be realized through the power supply connector, which is very convenient.

As a preferred embodiment, the power connector is at least a five-pin male or female plug corresponding to the tube-hole power cord and the AC power cord.

Male plug or female plug are two forms of socket or plug, which can be freely selected in actual production. Set the number of inner cores of the male plug or female plug to at least five cores, which can be connected with the two AC power lines of the rectifier circuit, the power line of the power-on tube hole, the tube-hole power line of the power-off tube hole, and the tube hole of the public tube hole. The power cords of the tube holes correspond to each other, which can ensure the normal progress of the switch handcart test.

As an improvement, the conductive pipe hole includes a public jack that can be plugged and matched with the conductive pins of various types of wiring heads, and also includes a single-use jack that is plugged in with various types of wiring heads. There are self-resetting multi-control switches corresponding to each type of wiring head one by one. One end of each reset multi-control switch is connected to the power connector correspondingly, and the other end of each reset multi-control switch is respectively connected to the corresponding single-purpose jack. Correspondingly electrically connected together, the self-resetting multi-control switch is kept in state by the gap provided on the connector or triggered by the connector when the conductive needle is fully inserted into the conductive pipe hole.

The conductive pipe hole is set into two types including common jack and single-use jack, so that the conductive pins of the same function and the same position of various types of connectors including HD type and VD type can pass through the common jack and the box. It can be inserted into the body to obtain power supply or control signal input; it can also make the conductive pins with the same function and different positions of various types of connectors including HD type and VD type can be obtained through their corresponding single-use jacks. Input for power supply or control signal. Among them, the on-off control of the electrical signal of the single-purpose jack is controlled by the self-resetting multi-control switch corresponding to the single-purpose jack, and the working state of the self-resetting multi-control switch is controlled by the gaps arranged on various types of connectors. control. Specifically, when a connector of a certain type is inserted into the box body, if a gap on the connector body corresponds to a self-resetting multi-control switch, the self-resetting multi-control switch will not is triggered, so it keeps its disconnected state, that is to say, the self-resetting multi-control switch is not matched with the connector, or the connector is not controlled by the self-resetting multi-control switch. On the contrary, when a connector of a certain type is inserted into the box body, if there is no notch on the corresponding position between the connector and a self-resetting multi-control switch, then when the connector is completely inserted into the box body, the The self-resetting multi-control switch will be triggered by the pressure of the connector, thereby switching from the off state to the on state, which also realizes the function of supplying power to the single-use jack corresponding to the connector or connecting the control signal. Then the box becomes a dedicated box corresponding to the connector. The notch on the connector is like the key or password corresponding to the self-resetting multi-control switch. Only the self-resetting multi-control switch that does not correspond to the key or password will trigger the action, and the action of the self-resetting multi-control switch is completed when the connector is completely closed. When it is inserted into the box, it is automatically driven by the connector without manual selection, and the operation is simple. It is especially suitable for use in the test of switch handcarts with many types, which helps to improve test efficiency and reduce error rates.

As an improvement, the connector is in a cylindrical shape fitted with the casing, the conductive needle is fixedly installed on the inner bottom of the casing, the self-resetting multi-control switch corresponds to the cylinder wall of the connector, and the gap is arranged on the cylinder wall.

The connector is set in the cylindrical shape of the suit box, and the conductive pin of the connector can be set on the inner bottom of the connector, so that when the hand-held connector is set on the box, the cylindrical connector can support and isolate The role of hands and conductive needles effectively avoids electric shock accidents during wiring and fundamentally guarantees operational safety. The notch is provided on the cylinder wall of the connecting head, and the notch on the cylinder wall can be modified according to actual needs, which is very convenient.

As a further improvement, a positioning column is fixed on the outer wall of the box, and a lock hook and a groove that are locked and matched with the positioning column are hinged on the connector.

When the connector is put on the box, the positioning post on the box will slide into the groove on the connector. By swinging the locking hook on the connecting head, the locking hook can be hooked to the positioning column, so that the connecting head and the box body can be locked together, effectively ensuring the reliability of the electrical connection between the conductive pin and the conductive tube hole.

In summary, the power system switch handcart inspection auxiliary device with the above-mentioned structure has a reasonable structure, and it is easy to carry out test wiring during the switch handcart test. It is used when the switch handcart is overhauled.

Description of drawings

The present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation before the present invention and wiring head suit;

Fig. 2 is a schematic structural view of the present invention after it is assembled with a wiring head;

Fig. 3 is a schematic diagram of the electrical principle of the present invention.

Detailed ways

As shown in the figure, the auxiliary device for inspection of the switch handcart in the electric power system includes a box body 1 corresponding to the wiring head, and the box body 1 is in the shape of a cuboid. Conductive tube holes 2 corresponding to the conductive pins 8 of the wiring head are evenly distributed on the box body 1 , and a rectifier circuit 3 and a tube power line 5 electrically connected to the conductive tube holes 2 are also provided in the box body 1 . Wherein the two output wires of the rectifier circuit 3 are electrically connected to the power storage positive tube hole 21 and the power storage negative tube hole 22 respectively, so that when the conductive pin 8 of the connector 7 is correspondingly inserted into the power storage positive tube hole 21 and the power storage negative tube hole 22, the external power supply will be rectified by the rectifier circuit 3 to charge and store the motor energy storage device connected to the head end, so that the charging and charging test can be completed conveniently and quickly. The conductive self-locking positive tube hole 23 and the conductive self-locking negative tube hole 24 are also electrically connected to the output end of the rectifier circuit 3, so that the rectifier circuit 3 can be controlled by the conductive self-locking positive tube hole 23 and the conductive self-locking negative tube hole 24. The switch handcart equipment at the terminal end operates to complete the closing and locking test. Similarly, the power-on tube hole 25, the power-off tube hole 26 and the common tube hole 27 respectively obtain power supply or control signals through the corresponding tube hole power lines 5, and control the switch at the terminal end through the plug-in terminal conductive pin 8. The handcart equipment moves to complete the closing test and opening test. When the present invention is in use, it can supply power to the corresponding conductive pin 8 of the terminal or send a control signal only through the plug-in cooperation between the terminal and the box body 1, so as to complete the relevant test of the switch handcart, which not only saves time and effort in operation, but also And it is not easy to make mistakes, and the connection is safe and reliable, which helps to improve the test efficiency.

The end of the box body 1 is equipped with a power supply connector 6, two AC power lines 4 of the rectifier circuit 3, a power line 51 of the power-on pipe hole, a power line 52 of the power-off pipe hole, and a pipe hole power cord 52 of the common pipe hole. The hole power cords 53 are respectively electrically connected to the conductive pins 8 of the power connector 6, so that the power cord and the casing 1 can be quickly connected and disconnected through the power connector 6, which is very convenient.

In this embodiment, the power connector 6 is a male plug or a female plug with at least five cores. Male plug or female plug are two forms of socket or plug, which can be freely selected in actual production. The number of inner cores of the male plug or the female plug is set to at least five cores, which can be connected with the two AC power lines 4 of the rectifier circuit 3, the tube hole power line 51 of the power-on tube hole, the tube hole power line 52 of the power-off tube hole, The tube hole power lines 53 of the common tube holes correspond respectively, which can ensure the normal progress of the switch handcart test.

The energizing pipe hole 25 includes a public jack 00 that can be plugged and matched with the conductive pins 8 of various types of wiring heads such as HD type and VD type, and also includes a socket that is respectively plugged in with the conductive pins 8 of various types of wiring heads such as HD type and VD type. The single-use jack 01 is also installed on the box body 1 with a self-resetting multi-control switch 02 corresponding to each type of wiring head such as HD type and VD type. One end of each reset multi-control switch 02 is connected to the power connector 6 Correspondingly connected together, the other ends of the reset multi-control switches 02 are electrically connected with the corresponding single-use jacks 01 respectively, and the self-reset multi-control switches 02 are set at the The notch 03 on the connector 7 maintains the state or is triggered by the connector 7 . The current pipe hole 25 is set into two types including the public jack 00 and the single-purpose jack 01, so that the conductive pins 8 of the same function and the same position of the connectors 7 of various types including HD type and VD type can pass through. The public jack 00 is plugged and matched with the box body 1, and the input of power supply or control signal is obtained; it can also enable the conductive pins 8 of different positions with the same function of various types of connectors 7 including HD type and VD type to be able to The input of power supply or control signal is obtained through the respective single-use jack 01. Among them, the on-off control of the electrical signal of the single-use jack 01 is controlled by the self-resetting multi-control switch 02 corresponding to the single-use jack 01, and the working state of the self-resetting multi-control switch 02 is controlled by the Notch 03 control on head 7. Specifically, when a connector 7 of a certain type is inserted into the box body 1, if a gap 03 on the body of the connector 7 corresponds to a self-resetting multi-control switch 02, the self-resetting multi-control switch 02 is The reason for the gap 03 will not be triggered, so keep its disconnected state, that is to say, the self-resetting multi-control switch 02 is not matched with the connector 7, or the connector 7 is not affected by the self-resetting multi-control. Control of switch 02. On the contrary, when a connector 7 of a certain type is inserted into the box body 1, if there is no notch 03 on the corresponding position of the connector 7 and a self-resetting multi-control switch 02, then when the connector 7 is completely inserted into the When the box body 1 is on, the self-resetting multi-control switch 02 will be triggered by the pressure of the connector 7, thereby switching from the off state to the on state, and realizing the single-use jack corresponding to the connector 7. 01 power supply or turn on the control signal, at this time the box body 1 becomes a dedicated box body 1 corresponding to the connector 7. The gap 03 on the connector 7 is like the key or password corresponding to the self-resetting multi-control switch 02. Only the self-resetting multi-control switch 02 that does not correspond to the key or password will trigger the action, and the action of the self-resetting multi-control switch 02 It is automatically driven by the connector 7 when the connector 7 is fully inserted into the box body 1. It does not need to be selected manually, and the operation is simple. It is especially suitable for use in the test of switch handcarts with many types, which helps to improve the test performance. efficiency and reduce error rates.

In this embodiment, the connector 7 is set in a cylindrical or sleeve shape that fits with the box body 1, and the conductive pin 8 is fixedly installed on the inner bottom of the box body 1. The self-resetting multi-control switch 02 and the barrel of the connector 7 Corresponding to the wall, the notch 03 is arranged on the cylinder wall. The connector 7 is arranged in a cylindrical shape or a sleeve shape of the box body 1, and the conductive pin 8 of the connector 7 can be arranged on the inner bottom of the connector 7, so that when the hand-held connector 7 is set on the box body 1, The cylindrical connector 7 can support and isolate the hand and the conductive needle 8, effectively avoiding electric shock accidents during wiring, and fundamentally ensuring the safety of operation. The notch 03 is provided on the cylinder wall of the connecting head 7, and the notch 03 on the cylinder wall can be modified according to actual needs, which is very convenient.

A positioning column 10 is fixed on the outer wall of the box body 1 , and a lock hook 9 and a groove that are locked and matched with the positioning column 10 are hinged on the connector 7 . When the connecting head 7 is set on the box body 1 , the positioning post 10 on the box body 1 will slide into the groove on the connecting head 7 . By swinging the locking hook 9 on the connecting head 7, the locking hook 9 can be hooked to the positioning column 10, so that the connecting head 7 and the box body 1 can be locked together, effectively ensuring the conductive pin 8 and the conductive tube hole 25 Reliability of electrical connections.

In this embodiment, the self-resetting multi-control switch is a multi-way control switch with self-resetting function, which has different names in different documents or occasions, such as multi-way switch, multi-control switch, multi-way parallel switch or parallel switch, etc. It belongs to a conventional circuit control device, and its structure and working principle belong to the known technology, which will not be described in detail here. The rectifier circuit 3 is also a conventional circuit, and will not be described in detail here.

Claims (2)

1. A power system switch handcart inspection auxiliary device, which is characterized in that: it includes a box (1) with a cavity inside, and the box (1) is equipped with a conductive needle (8) that cooperates with the connector (7). The conductive tube hole (2), the conductive tube hole (2) is set corresponding to the conductive pin (8) evenly distributed on the connector (7), and the rectifier circuit (3) and the extended The AC power line (4) of the rectifier circuit, the conductive tube hole (2) at least includes a power storage positive tube hole (21), a power storage negative tube hole (22), a conductive self-locking positive tube hole (23), Conductive self-locking negative tube hole (24), power-on tube hole (25), power-off tube hole (26) and public tube hole (27), among which the power storage positive tube hole (21) and the conductive self-locking positive tube hole ( 23) are electrically connected to the positive output end of the rectifier circuit (3), and the power storage negative tube hole (22) and the conductive self-locking negative tube hole (24) are respectively electrically connected to the negative output end of the rectifier circuit (3) , the power-on pipe hole (25), the power-off pipe hole (26) and the common pipe hole (27) are respectively connected with pipe-hole power cords (5); one side of the box body (1) is installed with a power connector (6 ), two AC power lines (4) for the rectifier circuit, the power line for the power-on tube hole (51), the power line for the power-off tube hole (52), and the power line for the common tube hole (53) Correspondingly, they are electrically connected to the conductive pins of the power connector (6). 2. The power system switch handcart inspection auxiliary device according to claim 1, characterized in that: the power connector (6) is at least corresponding to the tube hole power line (5) and the AC power line (4) The five-core male plug or female plug.