CN211790719U - Electromagnetic control switch - Google Patents
Electromagnetic control switch Download PDFInfo
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- CN211790719U CN211790719U CN201922465260.7U CN201922465260U CN211790719U CN 211790719 U CN211790719 U CN 211790719U CN 201922465260 U CN201922465260 U CN 201922465260U CN 211790719 U CN211790719 U CN 211790719U
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- control switch
- intermediate relay
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Abstract
The utility model discloses an electromagnetic control switch, including current detection module, current detection module connects gradually electronic control module, switch module, and current detection module still is connected with switch module. When the fault current is larger than a set value, the delay time reaches 0.01S through the electronic control module, and the main circuit current can be disconnected in time, so that the larger accident potential caused by long delay time is avoided; when the line current rises sharply due to faults such as short circuit and the like of the electric locomotive, the direct current fast switching action is carried out, the work of the whole line network is not influenced, the phenomenon of override trip of a power supply network of the electric locomotive is avoided, and the transportation efficiency of the electric locomotive is ensured; the maintenance is convenient, so that the maintenance efficiency is improved; the influence of natural environment is small, the service life is long, and the safe and reliable action of line failure is ensured.
Description
Technical Field
The utility model belongs to the technical field of the switch, a solenoid electric switch is related to.
Background
In the process of surface mining, the electric locomotive is the most important transportation mode in long distance. The line current is great, and original QDS7 switch adopts mechanical type mode of action, and the switch action is unstable, leads to the line current because the switch does not move when the trouble rises sharply, leads to once protection switch tripping operation to cause whole circuit to have a power failure because of the trouble, seriously influences production operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electromagnetic control switch has solved the unstable problem of switch action that exists among the prior art.
The utility model discloses the technical scheme who adopts is, a solenoid electric switch, including current detection module, current detection module connects gradually electronic control module, switch module, and current detection module still is connected with switch module.
The utility model discloses a characteristics still lie in:
the electronic control module comprises a voltage-stabilized power supply, the voltage-stabilized power supply is sequentially connected with an overcurrent protection switch and an intermediate relay A, and the overcurrent protection switch is also connected with an overload protection switch in parallel.
The switch module comprises an intermediate relay control switch A matched with the intermediate relay A, the intermediate relay control switch A is sequentially connected with an intermediate relay control switch B, a switching-off coil and an electromagnetic switching-off/switching-on system, and further comprises an intermediate relay B matched with the intermediate relay control switch B, and the intermediate relay B is connected with a manual starting button in series.
The intermediate relay control switch A is also connected with a manual closing button in parallel.
The current detection module is a through Hall current sensor.
The utility model has the advantages that:
the utility model relates to an electromagnetic control switch, when the fault current is greater than the setting value, through the electronic control module, the delay time reaches 0.01S, can break off the main circuit current in time, thus avoid the delay time long and lead to bigger accident hidden danger; when the line current rises sharply due to faults such as short circuit and the like of the electric locomotive, the direct current fast switching action is carried out, the work of the whole line network is not influenced, the phenomenon of override trip of a power supply network of the electric locomotive is avoided, and the transportation efficiency of the electric locomotive is ensured; the maintenance is convenient, so that the maintenance efficiency is improved; the influence of natural environment is small, the service life is long, and the safe and reliable action of line failure is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic control switch of the present invention;
fig. 2 is a schematic structural diagram of a current detection module in an electromagnetic control switch according to the present invention;
fig. 3 is a schematic structural diagram of an electronic control module in an electromagnetic control switch according to the present invention;
fig. 4 is a schematic structural diagram of a switch module in the electromagnetic control switch of the present invention.
In the figure, 1, a current detection module, 2, an electronic control module, 3, a switch module, 4, a voltage-stabilized power supply, 5, an overcurrent protection switch, 6, an intermediate relay A, 7, an overload protection switch, 8, an intermediate relay control switch A, 9, an intermediate relay control switch B, 10, a switching-off coil, 11, an electromagnetic switching-off/switching-on system, 12, an intermediate relay B, 13, a manual starting button and 14, a manual closing button are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an electromagnetic control switch, as shown in figure 1, including current detection module 1, current detection module 1 wears to overlap in the circuit, and electronic control module 2 is connected to the output, and current detection module 1 still is connected with switch module 3. The utility model discloses an electromagnetic control switch connects between the positive negative pole of power, and current detection module 1 wears the cover on main current circuit wire.
Preferably, the current detection module 1 is a feedthrough hall current sensor, as shown in fig. 2.
As shown in fig. 3, the electronic control module 2 includes a regulated power supply 4, the regulated power supply 4 is used for outputting a regulated voltage, and the regulated power supply outputs 48V and 24V voltages in the embodiment; the stabilized voltage power supply 4 is sequentially connected with an overcurrent protection switch (KGJ)5 and an intermediate relay A (ZJ)6, and the overcurrent protection switch 5 is also connected with an overload protection switch (GZJ)7 in parallel. After the manual starting button (SB1, SB2)13 is pressed, the equipment starts to be started, the main circuit current flows through the through Hall current sensor and is output to the electronic control module through the Hall current detection device, when the detected current is larger than the fault current (the set value is 800A), the overcurrent protection switch 5 is closed, the intermediate relay A6 acts, and the intermediate relay control switch A8 is closed.
As shown in fig. 4, the switch module 3 includes an intermediate relay control switch A8 adapted to the intermediate relay a6, and when the intermediate relay a6 operates, the intermediate relay control switch A8 is closed; the intermediate relay control switch A8 is sequentially connected with an intermediate relay control switch B9, a switching-off coil 10, an electromagnetic switching-off/switching-on system 11 and also comprises an intermediate relay B (KSF)12 matched with the intermediate relay control switch B9, an artificial starting button 13 is connected in series with the intermediate relay B12, and an artificial closing button 14(SB3 and SB4) is connected in parallel with the intermediate relay control switch A8. When the equipment is started, the coil of the intermediate relay B12 is electrified, the intermediate relay control switch B9 is closed, when the current value of the main circuit is larger than the fault current, the intermediate relay control switch A8 is closed, and the electromagnetic opening/closing system 11 is disconnected after being electrified, so that the purpose of disconnecting the circuit of the main circuit is fulfilled.
The utility model discloses an electromagnetic control switch theory of operation as follows:
when the starting button 13(SB1 or SB2) is manually pressed, the electromagnetic valve in the figure 4 is started, the coil of the intermediate relay B12 is electrified, and the intermediate relay control switch B9 is attracted. In the figure 2, the main circuit generates current, and the straight-through Hall current sensor is electrified and outputs the current to the overcurrent protection device and the overload protection device. FIG. 3 shows the conduction current of regulated power supply 4; when the current of the main circuit is larger than 800A (fault current) due to a fault, the overcurrent protection switch 5 in fig. 3 is closed, the coil of the intermediate relay a6 is electrified, the control switch A8 in fig. 4 is closed, the opening coil 10 is electrified and conducted, and the electromagnetic opening/closing system 12 is disconnected after being electrified to disconnect the current of the main circuit.
Through the mode, the electromagnetic control switch of the utility model, through the electronic control module, when the electric locomotive has faults such as short circuit and the like to cause the line current to rise sharply, carries out direct current rapid switching action, does not influence the whole line network work, avoids the phenomenon of the override trip of the electric locomotive power supply network, thereby ensuring the transportation efficiency of the electric locomotive; the maintenance is convenient, thereby improving the maintenance efficiency.
Claims (4)
1. The utility model provides an electromagnetic control switch, its characterized in that, includes current detection module (1), current detection module (1) connects gradually electronic control module (2), switch module (3), current detection module (1) still is connected with switch module (3), electronic control module (2) include constant voltage power supply (4), constant voltage power supply (4) have connected gradually overcurrent protection switch (5), auxiliary relay A (6), overcurrent protection switch (5) still parallelly connected overload protection switch (7).
2. The electromagnetic control switch according to claim 1, characterized in that the switch module (3) comprises an intermediate relay control switch a (8) adapted to the intermediate relay a (6), the intermediate relay control switch a (8) is sequentially connected to an intermediate relay control switch B (9), a switching-off coil (10), and an electromagnetic switching-off/switching-on system (11), and further comprises an intermediate relay B (12) adapted to the intermediate relay control switch B (9), and the intermediate relay B (12) is serially connected to a manual start button (13).
3. An electromagnetic control switch according to claim 2, characterized in that said intermediate relay control switch a (8) is also connected in parallel with a manual closing button (14).
4. The electromagnetic control switch according to claim 1, characterized in that the current detection module (1) is a feedthrough hall current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465260.7U CN211790719U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465260.7U CN211790719U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790719U true CN211790719U (en) | 2020-10-27 |
Family
ID=72891281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922465260.7U Active CN211790719U (en) | 2019-12-31 | 2019-12-31 | Electromagnetic control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790719U (en) |
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2019
- 2019-12-31 CN CN201922465260.7U patent/CN211790719U/en active Active
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