CN220895403U - Circuit contact structure of explosion-proof vacuum permanent magnet combined feed switch - Google Patents
Circuit contact structure of explosion-proof vacuum permanent magnet combined feed switch Download PDFInfo
- Publication number
- CN220895403U CN220895403U CN202322605543.3U CN202322605543U CN220895403U CN 220895403 U CN220895403 U CN 220895403U CN 202322605543 U CN202322605543 U CN 202322605543U CN 220895403 U CN220895403 U CN 220895403U
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- Prior art keywords
- circuit contact
- contact piece
- driving device
- piece
- feed switch
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- 239000000758 substrate Substances 0.000 claims description 18
- 239000004033 plastic Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 230000006870 function Effects 0.000 description 9
- 239000003245 coal Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
Abstract
The utility model discloses a circuit contact structure of an explosion-proof vacuum permanent magnet combined feed switch, which comprises a first circuit contact piece, a second circuit contact piece, a driving device and a feed switch framework, wherein the first circuit contact piece is arranged on the circuit contact piece; the feed switch framework is provided with a U-shaped arranging groove, and the second circuit contact piece is arranged at the notch of the arranging groove; the driving device is fixedly arranged in the placement groove, the first circuit contact piece is rotatably arranged at the output end of the driving device, and the first circuit contact piece is positioned in the placement groove so as to push the first circuit contact piece to be contacted with the second circuit contact piece through the driving device. According to the utility model, the first circuit contact piece and the second circuit contact piece which keep the distance are arranged, and the first circuit contact piece and the second circuit contact piece are driven by the driving device to realize circuit conduction through contact.
Description
Technical Field
The utility model relates to the technical field of coal mine electrical devices, in particular to a circuit contact structure of an explosion-proof vacuum permanent magnet combined feed switch.
Background
The mining flameproof vacuum feed switch is suitable for the environments containing explosive gas (methane mixture) in underground coal mines and other surrounding mediums, and can be used as a main switch and a branch switch of a power supply system or as a feed switch for a mining flameproof mobile transformer substation in a line with alternating current of 50hz and voltage to 1140v, and can also be used for the infrequent starting of a high-capacity motor, and has the functions of overload, short circuit, undervoltage, electric leakage protection and the like.
In general, a common device includes the following functions:
1. The protection function comprises under-voltage protection, circuit breaking protection, overload protection, leakage locking and the like;
2. Display function: a high-power light-emitting diode is adopted to intuitively display the closing state, the opening state and various fault states;
3. the switch device is provided with a test switch, and can check the control circuit and the protection circuit;
4. The leakage protection and the leakage blocking adopt the direct current addition method principle, and the leakage detection loop is safe and reliable.
The intelligent device comprises:
1. The function protection function can: the three-phase leakage protection circuit has the functions of overload, short circuit, undervoltage, overvoltage, three-phase unbalance (including phase failure), selective leakage protection of a sub-switch, leakage locking, leakage protection of a main switch, leakage locking and the like;
2. Display function: the high-power light-emitting diode is adopted to visually display the closing, opening and closing states, chinese character liquid crystal display is matched, the system voltage, three-phase current, opening and closing conditions and insulation resistance values are displayed in real time, and the fault memory function is realized;
3. When the selective leakage protection adopts a zero sequence current direction type principle and is used as a branch switch, if a leakage current angle occurs to a branch, the branch switch is tripped, and other branch switches and a main switch cannot be tripped;
4. The switch equipment is provided with a leakage test button and an overcurrent test button, and the protection function of the feed switch can be detected at any time.
The circuit contact structure of the existing feed switch has short reaction time, quick contact and no delay when in use, and further can not achieve delay or timing contact when in specific contact control, especially when in electric control. Thus, improvements are needed.
Disclosure of utility model
In view of the above problems, the present utility model is directed to a circuit contact structure of an explosion-proof vacuum permanent magnet combined feed switch.
A circuit contact structure of an explosion-proof vacuum permanent magnet combined feed switch comprises a first circuit contact piece, a second circuit contact piece, a driving device and a feed switch framework;
The feed switch framework is provided with a U-shaped arranging groove, and the second circuit contact piece is arranged at the notch of the arranging groove;
The driving device is fixedly arranged in the placement groove, the first circuit contact piece is rotatably arranged at the output end of the driving device, and the first circuit contact piece is positioned in the placement groove so as to push the first circuit contact piece to be contacted with the second circuit contact piece through the driving device.
In some preferred embodiments, the number of the driving devices is at least one, and the tail parts of the driving devices are fixedly connected to the inner wall of the mounting groove.
In some preferred embodiments, the two side walls of the placement groove are provided with placement tables, the output end of the driving device is connected with a supporting piece, and the supporting piece is slidably supported on the placement tables.
In some preferred embodiments, the first circuit contact sheet includes a first substrate made of plastic or rubber and a first conductive sheet made of metal, and the first conductive sheet is disposed on a surface of the first substrate facing the second circuit contact sheet.
In some preferred embodiments, the second circuit contact sheet includes a second substrate made of plastic or rubber and a second conductive sheet made of metal, and the second conductive sheet is disposed on a surface of the second substrate facing the first conductive sheet.
In some preferred embodiments, the first circuit contact piece is provided with two ear plates side by side, two ear plates are provided with pin holes with opposite positions, the output end of the driving device extends between the two ear plates, the output end of the driving device is provided with a via hole, and the driving device further comprises a pin shaft, and the pin shaft penetrates through the via hole and the pin hole, so that the output end of the driving device and the ear plates are rotatably connected.
In some preferred embodiments, the support is made of rubber and the cross-section of the support is "n" shaped.
The beneficial effects are that: according to the utility model, the first circuit contact piece and the second circuit contact piece which keep the distance are arranged, and the first circuit contact piece and the second circuit contact piece are driven by the driving device to realize circuit conduction through contact.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment of the present utility model.
Fig. 2 is an enlarged schematic view of the portion a in fig. 1.
Fig. 3 is an enlarged schematic view of the portion B in fig. 1.
Fig. 4 is a schematic structural view of a first circuit contact connected to a driving device according to an embodiment of the present utility model.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
Referring to fig. 1-4, a circuit contact structure of an explosion-proof vacuum permanent magnet combined feed switch includes a first circuit contact 10, a second circuit contact 20, a driving device 30 and a feed switch skeleton 40. The scheme is arranged in the explosion-proof vacuum permanent magnet combined feed switch during specific implementation and is used for switching on and off a circuit. The circuit contact structure in this scheme pushes the first circuit contact piece 10 to move to the second circuit contact piece 20 through the driving device 30, so that the two contact pieces are contacted to realize the conduction of a circuit. The feed switch skeleton 40 is a skeleton structure provided in the feed switch.
The feed switch frame 40 is provided with a U-shaped mounting groove 41, and the second circuit contact piece 20 is disposed at a notch of the mounting groove 41. The second circuit contact pad 20 is for connection to a wire that needs to be conducted. The seating groove 41 serves to accommodate the driving device 30 such that the driving device 30 pushes the first circuit contact piece 10 to move very conveniently.
As shown in fig. 1, the driving device 30 is fixedly disposed in the disposition groove 41, and the first circuit contact pad 10 is rotatably disposed at an output end of the driving device 30. The first circuit contact piece 10 is rotatably connected to the output of the drive device 30, so that the first circuit contact piece 10 can be adjusted in position by rotation when the output of the drive device 30 is extended or retracted, and the movement thereof is not affected when interference occurs.
The first circuit contact piece 10 is positioned inside the seating groove 41 to push the first circuit contact piece 10 into contact with the second circuit contact piece 20 by the driving device 30. The first circuit contact piece 10 is located inside the seating groove 41. The first circuit contact piece 10 can be protected by the mounting groove 41. Meanwhile, the driving device 30 does not instantaneously contact with the first circuit contact piece 10 during the moving process. In the original state, the first circuit contact piece 10 and the second circuit contact piece 20 keep a distance, and when the driving device 30 obtains a closing instruction, the driving device 30 pushes the first circuit contact piece 10 and the second circuit contact piece 20 to achieve contact, so that a circuit is conducted. Because of the distance between the first circuit contact pad 10 and the second circuit contact pad 20, there is a time delay between the acquisition of the command and the actual conduction. This is so as to satisfy delay control in the circuit completion. Further, by measuring the time for the driving device 30 to start pushing the first circuit contact piece 10 to the contact of the first circuit contact piece 10 and the second circuit contact piece 20, timing control of the contact of both can be achieved.
In some preferred embodiments, the number of the driving devices 30 is at least one, and the tail portions of the driving devices 30 are fixedly connected to the inner wall of the seating groove 41. As shown in fig. 1, in order to ensure the driving force of the driving means 30, two driving means 30 are provided for driving the first circuit contact 10. Meanwhile, the tail of the driving device 30 is fixed to the rear wall of the seating groove 41 by bolts. In particular embodiments, the number of driving devices 30 may also be three, four, five, etc.
In particular embodiments, the drive means 30 may be a cylinder or/and a cylinder.
In some preferred embodiments, the seating grooves 41 are provided at both side walls with seating tables 42, the supporting member 31 is connected to the output end of the driving device 30, and the supporting member 31 is slidably supported on the seating tables 42. As shown in fig. 1 and 4, the setting table 42 is used to support the setting support 31, and the upper surface of the setting table 42 is slidably fitted with the support 31. Meanwhile, the support 31 is connected to an output end of the driving device 30. In this way, when the output end of the driving device 30 stretches and contracts, the supporting is realized through the placement table 42, and the firmness of the arrangement of the driving device 30 is further enhanced.
In some preferred embodiments, the first circuit contact sheet 10 includes a first substrate 11 made of plastic or rubber and a first conductive sheet 12 made of metal, and the first conductive sheet 12 is disposed on a surface of the first substrate 11 facing the side of the second circuit contact sheet 20. As shown in fig. 2, the first circuit contact piece 10 is provided as a first substrate 11 and a first conductive piece 12, and the first substrate 11 is made of plastic or rubber, and the first conductive piece 12 is made of metal. The first substrate 11 is used as a base material for the arrangement of the first conductive sheet 12. The first substrate 11 is made of plastic or rubber to achieve insulation with its material. The first conductive sheet 12 realizes circuit conduction.
In some preferred embodiments, the second circuit contact piece 20 includes a second substrate 21 made of plastic or rubber and a second conductive piece 22 made of metal, and the second conductive piece 22 is disposed on a surface of the second substrate 21 facing the first conductive piece 12 side. As shown in fig. 3, the second circuit contact 20 is also a layered structure, and includes a second substrate 21 and a second conductive sheet 22. The insulating second substrate 21 is provided with a second conductive sheet 22 for conducting electricity. The second conductive sheet 22 is brought into contact with the first conductive sheet 12 to realize circuit conduction.
In some preferred embodiments, as shown in fig. 1 and 4, two ear plates 13 are disposed on the first circuit contact piece 10 side by side, and two pin holes are disposed on the two ear plates 13, where the output end of the driving device 30 extends between the two ear plates 13, and the output end of the driving device 30 is provided with a via hole, and further includes a pin shaft 14, where the pin shaft 14 passes through the via hole and the pin hole, so that the output end of the driving device 30 and the ear plates 13 are rotatably connected. The output of the drive device 30 is rotatably connected to the first circuit contact strip 10 by a rotatable fit between the output of the drive device 30, the pin 14 and the ear plate 13.
In some preferred embodiments, as shown in fig. 4, the supporting member 31 is made of rubber, and the cross section of the supporting member 31 is in an "n" shape. The supporting member 31 is made of rubber, and the elasticity of the rubber is utilized to eliminate the tight fit generated in the assembly of the components and prevent the sliding.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (7)
1. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch is characterized by comprising a first circuit contact piece (10), a second circuit contact piece (20), a driving device (30) and a feed switch framework (40);
The feed switch framework (40) is provided with a U-shaped placement groove (41), and the second circuit contact piece (20) is arranged at the notch of the placement groove (41);
The driving device (30) is fixedly arranged in the accommodating groove (41), the first circuit contact piece (10) is rotatably arranged at the output end of the driving device (30), and the first circuit contact piece (10) is positioned in the accommodating groove (41) so as to push the first circuit contact piece (10) to be contacted with the second circuit contact piece (20) through the driving device (30).
2. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch as set forth in claim 1, wherein: the number of the driving devices (30) is at least one, and the tail parts of the driving devices (30) are fixedly connected to the inner wall of the placement groove (41).
3. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch as set forth in claim 1, wherein: the two side walls of the placement groove (41) are provided with placement tables (42), the output end of the driving device (30) is connected with a supporting piece (31), and the supporting piece (31) is slidably supported on the placement tables (42).
4. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch as set forth in claim 1, wherein: the first circuit contact piece (10) comprises a first substrate (11) made of plastic or rubber and a first conductive piece (12) made of metal, and the first conductive piece (12) is arranged on the surface of the first substrate (11) facing to one side of the second circuit contact piece (20).
5. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch as set forth in claim 4, wherein: the second circuit contact piece (20) comprises a second substrate (21) made of plastic or rubber and a second conductive piece (22) made of metal, and the second conductive piece (22) is arranged on the surface of the second substrate (21) facing to one side of the first conductive piece (12).
6. The circuit contact structure of the explosion-proof vacuum permanent magnet combined feed switch as set forth in claim 1, wherein: two lug plates (13) are arranged on the first circuit contact piece (10) side by side, pin holes with opposite positions are arranged on the two lug plates (13), the output end of the driving device (30) stretches into the two lug plates (13), a through hole is arranged on the output end of the driving device (30), the driving device further comprises a pin shaft (14), and the pin shaft (14) penetrates through the through hole and the pin holes, so that the output end of the driving device (30) is rotatably connected with the lug plates (13).
7. A circuit contact structure of an explosion-proof vacuum permanent magnet combination feed switch as set forth in claim 3, wherein: the supporting piece (31) is made of rubber, and the cross section of the supporting piece (31) is n-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322605543.3U CN220895403U (en) | 2023-09-25 | 2023-09-25 | Circuit contact structure of explosion-proof vacuum permanent magnet combined feed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322605543.3U CN220895403U (en) | 2023-09-25 | 2023-09-25 | Circuit contact structure of explosion-proof vacuum permanent magnet combined feed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895403U true CN220895403U (en) | 2024-05-03 |
Family
ID=90838439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322605543.3U Active CN220895403U (en) | 2023-09-25 | 2023-09-25 | Circuit contact structure of explosion-proof vacuum permanent magnet combined feed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895403U (en) |
-
2023
- 2023-09-25 CN CN202322605543.3U patent/CN220895403U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |