Electromagnetic switch module

Abstract

The utility model relates to a switch module, in particular to an electromagnetic switch module, which comprises a box body. The binding posts are fixedly arranged on the box body; the box body is fixedly provided with a wiring sleeve; a static contact is fixedly mounted on the binding post; a sliding rod is mounted in the wiring sleeve in a sliding manner; a movable contact is arranged on the sliding rod; a closing assembly is arranged in the box body; the closing assembly acts to drive the sliding rod to slide in the wiring sleeve so as to drive the moving contact to approach and abut against the static contact. An electromagnetic driving assembly used for driving the closing assembly to act is arranged in the box body, and the electromagnetic driving assembly drives the closing assembly to act, so that an operator can be prevented from being in direct contact with the closing assembly, the safety is improved, and the influence of static electricity carried by the operator on the stability of equipment can be avoided; the closing assembly drives the moving contact to approach and abut against the static contact, power supply can be achieved sensitively, the power-on process is safe, and the power supply process is stable.

Description

Technical Field

[0001] This utility model relates to a switch module, specifically an electromagnetic switch module. Background Technology

[0002] The demolition of urban concrete beams, as well as the pre-fracture of rocks in tunnels and mines, all require the pre-fracture of rock or concrete to facilitate further processing.

[0003] During rock breaking, a high-voltage energy storage pulse power supply discharges to a controllable shock wave transducer, creating a short-pulse high voltage between the transducer's discharge electrodes. This high voltage breaks down the liquid medium, generating a plasma channel. When electrical energy is injected into this plasma channel, it generates high temperature and pressure, causing the channel to expand outward and produce a pulsed pressure wave. The high-voltage energy storage pulse power supply discharges through a charge / discharge switch, thus requiring high reliability from the switch; an electromagnetic switch module can be used.

[0004] An electromagnetic switch module, as the name suggests, is a switch module controlled by an electromagnet; it's a combination of an electromagnet and a switch. When the electromagnet coil is energized, the iron core pushes or pulls the switch contacts to close under the influence of magnetic force, thus connecting the control circuit. Electromagnetic switches have wide applications in various industries, most commonly as contactors in industrial applications.

[0005] An electromagnetic switch mainly consists of two parts: an electromagnet mechanism and a mechanical switch. The electromagnet mechanism comprises a fixed iron core, a movable iron core, an attraction coil, and a holding coil. The fixed iron core remains stationary, while the movable iron core can move axially within a copper sleeve. A push rod is fixed to the front end of the movable iron core, and a switch contact plate is mounted at the front end of the push rod. The rear section of the movable iron core is connected to a shift fork using an adjusting screw and a connecting pin. A return spring is installed outside the copper sleeve to reset the movable iron core and other moving parts. The magnetic force generated by the energized attraction coil moves the iron core, thereby actuating the mechanical switch to achieve energization and de-energization.

[0006] In common electromagnetic switch modules, after the attraction coil is de-energized, the reset spring will promptly drive the iron core to reset, thereby triggering the mechanical switch to achieve immediate power-off. However, in the rock-breaking process, there are usually multiple liquid phase medium groups. Breaking down all liquid phase mediums requires a certain breakdown time. Using an electromagnetic switch that can immediately cut off power may result in the operator accidentally triggering the power-off operation when the pulsed high voltage has not broken down all liquid phase mediums, leading to rock-breaking failure or instability after the rock-breaking process is completed. Utility Model Content

[0007] The purpose of this invention is to provide an electromagnetic switch module to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An electromagnetic switch module includes a housing; and a terminal block fixedly installed on one side of the housing; a terminal sleeve is fixedly installed on the other side of the housing.

[0010] A stationary contact is fixedly installed on the terminal block; a sliding rod is slidably installed inside the terminal sleeve; a moving contact is provided on the sliding rod;

[0011] The housing is equipped with a closing assembly; the operation of the closing assembly can drive the sliding rod to slide within the wiring sleeve, thereby causing the moving contact to approach and abut against the stationary contact.

[0012] The housing contains an electromagnetic drive assembly for driving the closing assembly.

[0013] As described above, the electromagnetic switch module includes: an electromagnetic drive assembly comprising a guide rod slidably mounted on the housing, an iron core fixedly mounted at one end of the guide rod, and a power supply module for power supply fixedly mounted on the housing; an adsorption coil and a holding coil are wrapped around the outer periphery of the iron core, and the adsorption coil and the holding coil are connected; the power supply module is connected to the adsorption coil and the holding coil; and the iron core is connected to the closing assembly.

[0014] As described above, the electromagnetic switch module includes: a closing assembly comprising a first telescopic sleeve rotatably mounted on the iron core, a first telescopic column slidably mounted on the first telescopic sleeve; multiple sets of locking grooves are formed on the first telescopic sleeve, and limit bolts are threadedly connected to the locking grooves; a rotating block is rotatably mounted on the housing, and a connecting rod is fixedly mounted on one end of the rotating block near the iron core; a second telescopic sleeve is fixedly mounted on the other end of the rotating block, and a second telescopic column hinged to the sliding rod is slidably mounted on the second telescopic sleeve; an internally threaded slider rotatably mounted on the first telescopic column and slidably connected to the connecting rod; and a lead screw thread threadedly connected to the internally threaded slider is rotatably mounted on the connecting rod.

[0015] As described above, the electromagnetic switch module has a baffle fixedly mounted on the slide rod, the moving contact slidably connected to the slide rod, and a delay spring fixedly mounted on the moving contact and fixedly connected to the baffle.

[0016] As described above, in the electromagnetic switch module: a reset spring that is fixedly connected to the housing is fixedly installed on the iron core.

[0017] As described above, for an electromagnetic switch module: a connecting frame for fixing the housing is fixedly installed on the housing.

[0018] As described above, in the electromagnetic switch module, a button block is fixedly installed at the end of the lead screw.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: the electromagnetic drive component drives the closing component to move, thereby causing the slide rod to slide inside the wiring sleeve, which in turn drives the moving contact to approach and contact the stationary contact. When the moving contact and the stationary contact contact, the power supply can supply power to the electrical equipment so that the equipment can operate; the position of the internal threaded slider can be adjusted by the threaded engagement between the lead screw and the internal threaded slider to change the sliding distance of the slide rod, and the delayed power-off function can be realized by the elastic force of the delay spring (the delay time increases with the increase of the distance between the internal threaded slider and the rotating block). By setting the delayed power-off, sufficient time can be given for the pulsed high voltage to impact the liquid medium so that the pulsed high voltage can break down the liquid medium, thereby ensuring the stable progress of the rock breaking process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the electromagnetic switch module.

[0021] Figure 2 This is a schematic diagram of the moving contact and stationary contact in an electromagnetic switch module.

[0022] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle.

[0023] Figure 4 This is a cross-sectional view of the electromagnetic switch module.

[0024] Figure 5 This is a schematic diagram of the slide bar and wiring sleeve in an electromagnetic switch module.

[0025] Figure 6 This is a structural schematic diagram of an electromagnetic switch module from an exploded perspective.

[0026] In the diagram: 1. Box housing; 101. Terminal block; 102. Terminal sleeve; 103. Connector bracket;

[0027] 2. Static contactor;

[0028] 3. Slide bar; 301. Baffle;

[0029] 4. Moving contact;

[0030] 5. Delay spring;

[0031] 6. Power supply module;

[0032] 7. Adsorption coil;

[0033] 8. Hold the coil;

[0034] 9. Iron core; 901. Return spring;

[0035] 10. Guide rod;

[0036] 11. First telescopic sleeve; 1101. Locking groove;

[0037] 12. First telescopic column;

[0038] 13. Internal thread slider;

[0039] 14. Connecting rod; 1401. Lead screw; 1402. Button block;

[0040] 15. Rotating block;

[0041] 16. Second telescopic sleeve;

[0042] 17. Second telescopic column;

[0043] 18. Limit bolts. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0045] Please see Figures 1-6 As an embodiment of the present utility model, the electromagnetic switch module includes a housing 1; and a terminal block 101 fixedly installed on one side of the housing 1; and a terminal sleeve 102 fixedly installed on the other side of the housing 1.

[0046] A stationary contact 2 is fixedly installed on the terminal block 101; a sliding rod 3 is slidably installed inside the terminal sleeve 102; a moving contact 4 is provided on the sliding rod 3;

[0047] The housing 1 is equipped with a closing assembly; the closing assembly can drive the slide rod 3 to slide within the wiring sleeve 102, thereby driving the moving contact 4 to approach and abut against the stationary contact 2.

[0048] The housing 1 is equipped with an electromagnetic drive component for driving the closing component.

[0049] In this embodiment, the enclosure 1 is installed in the switch cabinet, the terminal 101 is connected to one electrode of the electrical equipment, the terminal sleeve 102 is connected to one electrode of the power supply, and the other electrode of the power supply is connected to the other electrode of the electrical equipment.

[0050] The electromagnetic drive component drives the closing component to move, which in turn causes the slide bar 3 to slide within the wiring sleeve 102. This causes the moving contact 4 to move closer to and contact the stationary contact 2. When the moving contact 4 contacts the stationary contact 2, the power supply can provide power to the electrical equipment so that the equipment can operate.

[0051] By using an electromagnetic drive component to drive the closing component, direct contact between the operator and the closing component can be avoided, thus improving safety and preventing the impact of static electricity carried by personnel on the stability of the equipment. By using the closing component to drive the moving contact 4 to approach and abut against the stationary contact 2, power can be supplied more sensitively, making the power-on process safer and more stable.

[0052] As a further embodiment of this utility model, the electromagnetic drive assembly includes a guide rod 10 slidably mounted on the housing 1, with an iron core 9 fixedly mounted at one end of the guide rod 10, and a power supply module 6 for power supply fixedly mounted on the housing 1; an adsorption coil 7 and a holding coil 8 are wrapped around the outer periphery of the iron core 9, and the adsorption coil 7 and the holding coil 8 are conductive, and the power supply module 6 is conductive to the adsorption coil 7 and the holding coil 8; the iron core 9 is connected to the closing assembly.

[0053] In this embodiment, the power module 6 is controlled by the controller and can provide DC power to the holding coil 8 and the adsorption coil 7. When the adsorption coil 7 is energized, an adsorption force is applied to the iron core 9 under the effect of electromagnetic induction, causing the iron core 9 to slide and move, thereby driving the guide rod 10 to slide outward on the housing 1. At this time, the length of the part of the guide rod 10 that is exposed outside the housing 1 becomes longer. Therefore, the working status of the electromagnetic drive component can be judged by observing the change in the length of the guide rod 10, so as to facilitate the operator to make an accurate judgment on the status of the equipment.

[0054] At the same time, when the iron core 9 moves, it will drive the slide bar 3 to slide, thereby driving the moving contact 4 to approach and contact the stationary contact 2, so as to realize the power supply to the electrical equipment.

[0055] After the moving contact 4 comes into contact with the stationary contact 2, and the moving contact 4 is not moving, the energized holding coil 8 will provide a continuous external force to the iron core 9 under the action of electromagnetic induction. This external force can keep the iron core 9 in a fixed position, thereby keeping the moving contact 4 and the stationary contact 2 in a state of contact.

[0056] By using an electromagnetic drive component to drive the closing component, direct contact between the operator and the closing component can be avoided, thus improving safety and preventing the impact of static electricity carried by personnel on the stability of the equipment.

[0057] As a further embodiment of this utility model, the closing assembly includes a first telescopic sleeve 11 rotatably mounted on the iron core 9, and a first telescopic column 12 slidably mounted on the first telescopic sleeve 11; the first telescopic sleeve 11 has multiple sets of locking grooves 1101, and the locking grooves 1101 are internally threaded with limit bolts 18; a rotating block 15 is rotatably mounted on the housing 1, and a connecting rod 14 is fixedly mounted on one end of the rotating block 15 near the iron core 9; a second telescopic sleeve 16 is fixedly mounted on the other end of the rotating block 15, and a second telescopic column 17 hinged to the slide rod 3 is slidably mounted on the second telescopic sleeve 16; an internally threaded slider 13 rotatably mounted on the first telescopic column 12 and slidably connected to the connecting rod 14; and a lead screw 1401 threadedly connected to the internally threaded slider 13 is rotatably mounted on the connecting rod 14.

[0058] In this embodiment, before use, the limiting bolt 18 is tightened. As the limiting bolt 18 is screwed into the locking groove 1101, it will gradually come into contact with the first telescopic column 12. As the screwing continues, the squeezing force of the limiting bolt 18 on the first telescopic column 12 will continue to increase, thereby locking the first telescopic column 12 in the first telescopic sleeve 11 and preventing relative sliding.

[0059] As the iron core 9 continuously shifts, it causes the first telescopic sleeve 11 and the first telescopic column 12 to shift, thereby causing the rotating block 15 to rotate via the internal threaded slider 13 and the connecting rod 14. During this process, the angle between the first telescopic column 12 and the internal threaded slider 13 changes, and the angle between the first telescopic sleeve 11 and the iron core 9 also changes. When the rotating block 15 rotates, the second telescopic sleeve 16 also deflects. At this time, the rotation angle of the second telescopic sleeve 16 is the same as the rotation angle of the connecting rod 14. During the deflection of the second telescopic sleeve 16, it causes the second telescopic column 17 to rotate, and causes the sliding rod 3 to slide towards the terminal post 101 within the wiring sleeve 102, thereby causing the moving contact 4 to approach and abut against the stationary contact 2. During this process, the second telescopic column 17 slides inward within the second telescopic sleeve 16.

[0060] Because the electromagnetic drive component moves quickly, the closing component also moves the slide bar 3 quickly and without delay. Therefore, by driving the moving contact 4 to approach and abut the stationary contact 2 through the closing component, power can be supplied more sensitively, the power supply process is safer, and the power supply process is more stable.

[0061] As a further embodiment of this utility model, a baffle 301 is fixedly installed on the slide rod 3, the movable contact 4 is slidably connected to the slide rod 3, and a delay spring 5 fixedly installed on the movable contact 4 and fixedly connected to the baffle 301.

[0062] In this embodiment, in the initial position, the greater the distance between the internal thread slider 13 and the rotating block 15, the smaller the angle between the first telescopic sleeve 11 and the iron core 9, the greater the trajectory of the iron core 9 driving the connecting rod 14 to rotate, so that the rotating block 15 rotates at a greater angle and the sliding distance of the slider 3 is greater.

[0063] When the internal thread slider 13 is at its minimum distance from the rotating block 15, the displacement of the iron core 9 causes the sliding rod 3 to slide at its minimum distance. At this time, the sliding rod 3 causes the moving contact 4 to move at its minimum distance. When the moving contact 4 stops moving, the moving contact 4 and the stationary contact 2 just come into contact and fit together, and the delay spring 5 is not compressed. Therefore, when the iron core 9 is reset, the closing assembly can promptly drive the moving contact 4 to separate from the stationary contact 2 to achieve power disconnection.

[0064] During the rock-breaking process, the high-voltage pulse requires a certain breakdown time to break down all liquid phase media. By setting a delayed power-off, sufficient time can be given for the high-voltage pulse to impact all liquid phase media, so that the high-voltage pulse can break down all liquid phase media. That is, after the electromagnetic switch performs the power-off operation, the high-voltage energy storage pulse power supply will still discharge the controllable shock wave transducer for a short time to ensure that all liquid phase media can be broken down, thereby ensuring the stable progress of the rock-breaking process.

[0065] For example, loosen the limit bolt 18; rotate the lead screw 1401, which drives the internal thread slider 13 to move through the threaded engagement, so as to adjust the internal thread slider 13 to the maximum distance from the rotating block 15. During this process, the first telescopic column 12 will slide inward in the first telescopic sleeve 11, tightening the limit bolt 18; then, through the action of the electromagnetic drive assembly and the closing assembly, the sliding rod 3 will move to the maximum displacement distance. During the sliding of the sliding rod 3, the moving contact 4 will move synchronously, so that the moving contact 4 approaches the stationary contact 2. Since the displacement length of the sliding rod 3 increases, even after the moving contact 4 and the stationary contact 2 come into contact, it will still... Continue sliding, causing baffle 301 to compress delay spring 5 until slide rod 3 comes to a stop, at which point the compression of delay spring 5 is at its maximum. When the electromagnetic drive assembly stops operating, iron core 9 will reset, thereby driving slide rod 3 to slide in the opposite direction through the closing assembly, so that moving contact 4 separates from stationary contact 2. During this process, slide rod 3 will first drive baffle 301 to slide, while the compression of delay spring 5 gradually decreases, and the elastic force will always act on moving contact 4, so that moving contact 4 and stationary contact 2 remain in contact. After delay spring 5 resets, slide rod 3 will drive moving contact 4 to move, so that moving contact 4 separates from stationary contact 2, thus achieving power disconnection.

[0066] By adjusting the position of the internal threaded slider 13 through the threaded engagement of the lead screw 1401 and the internal threaded slider 13, the sliding distance of the slider 3 is changed. The delayed power-off function is achieved through the elastic force of the delay spring 5 (the delay time increases as the distance between the internal threaded slider 13 and the rotating block 15 increases). This changes the discharge time of the high-voltage energy storage pulse power supply to the controllable shock wave transducer after the electromagnetic switch performs the power-off operation, ensuring that all liquid phase media can be broken down, thereby ensuring the stable progress of the rock breaking process.

[0067] As a further embodiment of this utility model, a return spring 901, which is fixedly connected to the housing 1, is fixedly installed on the iron core 9.

[0068] In this embodiment, under the control of the power module 6, when the coil 8 and the adsorption coil 7 are energized, the iron core 9 will be displaced, and during the displacement process, the reset spring 901 is compressed.

[0069] Under the control of the power module 6, after the coil 8 and the adsorption coil 7 are disconnected, the elastic force of the reset spring 901 will drive the iron core 9 to move in the opposite direction to reset, thereby driving the closing assembly to move in the opposite direction, thereby driving the slide bar 3 to slide in the opposite direction, so as to separate the moving contact 4 from the stationary contact 2 and reset.

[0070] As a further embodiment of this utility model, a connecting bracket 103 for fixing the box body 1 is fixedly installed on the box body 1.

[0071] In this embodiment, the housing 1 is fixedly installed on a reliable device by the connecting frame 103, which can avoid the influence of external interference on the housing 1 and thus affect the stable operation of the internal structure of the housing 1.

[0072] As a further embodiment of this utility model, a button block 1402 is fixedly installed at the end of the lead screw 1401.

[0073] In this embodiment, the outer surface of the button block 1402 has a large coefficient of friction, which makes it convenient for the operator to rotate the lead screw 1401 for time delay adjustment.

[0074] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An electromagnetic switch module, comprising a housing (1) and a terminal block (101) fixedly installed on one side of the housing (1); a terminal sleeve (102) is fixedly installed on the other side of the housing (1); Its features are, A stationary contact (2) is fixedly installed on the terminal block (101); a sliding rod (3) is slidably installed inside the terminal sleeve (102); a moving contact (4) is provided on the sliding rod (3); The housing (1) is equipped with a closing assembly; the closing assembly can drive the slide rod (3) to slide in the wiring sleeve (102) so as to drive the moving contact (4) to approach and abut against the stationary contact (2); The housing (1) is equipped with an electromagnetic drive assembly for driving the closing assembly.

2. The electromagnetic switch module according to claim 1, characterized in that, The electromagnetic drive assembly includes a guide rod (10) slidably mounted on the housing (1), with an iron core (9) fixedly mounted at one end of the guide rod (10). A power supply module (6) for power supply is fixedly mounted on the housing (1). An adsorption coil (7) and a holding coil (8) are wrapped around the outer periphery of the iron core (9), and the adsorption coil (7) and the holding coil (8) are connected. The power supply module (6) is connected to the adsorption coil (7) and the holding coil (8). The iron core (9) is connected to the closing assembly.

3. An electromagnetic switch module according to claim 2, characterized in that, The closing assembly includes a first telescopic sleeve (11) rotatably mounted on the iron core (9), a first telescopic column (12) slidably mounted on the first telescopic sleeve (11); multiple sets of locking grooves (1101) are provided on the first telescopic sleeve (11), and a limit bolt (18) is threadedly connected to the locking groove (1101); a rotating block (15) is rotatably mounted on the housing (1), and a connecting rod (14) is fixedly mounted on one end of the rotating block (15) near the iron core (9); a second telescopic sleeve (16) is fixedly mounted on the other end of the rotating block (15), and a second telescopic column (17) hinged to the slide rod (3) is slidably mounted on the second telescopic sleeve (16); an internally threaded slider (13) slidably connected to the connecting rod (14) is rotatably mounted on the first telescopic column (12); and a screw rod (1401) threadedly connected to the internally threaded slider (13) is rotatably mounted on the connecting rod (14).

4. An electromagnetic switch module according to claim 3, characterized in that, A baffle (301) is fixedly installed on the slide rod (3), the movable contact (4) is slidably connected to the slide rod (3), and a delay spring (5) fixedly installed on the movable contact (4) and fixedly connected to the baffle (301).

5. An electromagnetic switch module according to claim 4, characterized in that, A return spring (901) that is fixedly connected to the housing (1) is fixedly installed on the iron core (9).

6. An electromagnetic switch module according to claim 1, characterized in that, A connecting frame (103) for fixing the box (1) is fixedly installed on the box (1).

7. An electromagnetic switch module according to claim 3, characterized in that, A button block (1402) is fixedly installed at the end of the lead screw (1401).

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