CN213124256U - Pneumatic isolating switch and power electronic device - Google Patents
Pneumatic isolating switch and power electronic device Download PDFInfo
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- CN213124256U CN213124256U CN202022040677.1U CN202022040677U CN213124256U CN 213124256 U CN213124256 U CN 213124256U CN 202022040677 U CN202022040677 U CN 202022040677U CN 213124256 U CN213124256 U CN 213124256U
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- cylinder
- pneumatic
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- 230000003068 static effect Effects 0.000 claims abstract description 45
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- 230000035939 shock Effects 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- SWGJCIMEBVHMTA-UHFFFAOYSA-K trisodium;6-oxido-4-sulfo-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate Chemical group [Na+].[Na+].[Na+].C1=CC=C2C(N=NC3=C4C(=CC(=CC4=CC=C3O)S([O-])(=O)=O)S([O-])(=O)=O)=CC=C(S([O-])(=O)=O)C2=C1 SWGJCIMEBVHMTA-UHFFFAOYSA-K 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a pneumatic isolating switch and a power electronic device, wherein a cylinder is fixed on an insulating shell; the moving contact is fixed on a piston of the cylinder, and the shock absorber is arranged between the moving contact and the piston; the static contact is fixed on the insulating shell and is used for being matched with the moving contact. Through the pneumatic isolating switch and the power electronic device, the moving contact and the static contact are driven to be in contact and disconnected when the piston of the air cylinder moves, so that the switch is realized, in the process of contacting the moving contact and the static contact, the flexible contact of the moving contact and the static contact can be realized through the arranged shock absorber, the impact force generated in the contact process is reduced, the service life of the contact is effectively prolonged, and the service life of the power electronic device is prolonged.
Description
Technical Field
The utility model relates to an electrical apparatus automation specifically is a pneumatic isolator and power electronic device.
Background
The pneumatic isolating switch is composed of an insulating support plate, a fixed contact, a movable contact, a link mechanism, a cylinder and the like, a cylinder piston is connected to the movable contact through the link mechanism, and the action of the cylinder piston drives the movable contact to move so as to realize the switching of equipment.
However, the pneumatic isolating switch structure in the prior art adopts the cylinder to drive the disconnecting link to act through the connecting rod structure, and along with the increase of the capacity of the industrial power supply equipment, the volume and the weight of the equipment are increased, so that the pneumatic isolating switch in the prior art can not meet the use requirement for the convenience of transportation and installation of the equipment, and the pneumatic isolating switch in the prior art has the disadvantages of complex structure, difficult maintenance and higher cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a pneumatic isolator and power electronic device to solve among the prior art pneumatic isolator structure complicacy and lead to maintaining the difficulty, the problem that the maintenance cost is high, and transportation and the installation problem that leads to are too big, weight is heavier.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model discloses a first aspect discloses a pneumatic isolator, include: the device comprises a static contact, a moving contact, a shock absorber, a cylinder and an insulating shell;
the cylinder is fixed on the insulating shell; the moving contact is fixed on a piston of the cylinder, and the shock absorber is arranged between the moving contact and the piston;
the static contact is fixed on the insulating shell and is used for being matched with the moving contact.
Preferably, the cylinder and the movable contact are at the same electric potential.
Preferably, the insulating housing is provided with an assembly groove, the cylinder is fixed at the bottom of the assembly groove, and the fixed contact is fixed at the notch of the assembly groove.
Preferably, the two fixed contacts are fixed relatively to the notch of the assembling groove.
Preferably, the method further comprises the following steps: fixing the bolt;
the moving contact is fixed on a piston of the cylinder through the fixing bolt.
Preferably, the moving contact and the fixed contact are in inclined surface contact fit.
Preferably, the outer circumferential surface of the moving contact is a conical surface, one end of the moving contact close to the static contact is a small-diameter end, and the inner circumferential surface of the static contact is a conical surface matched with the outer circumferential surface of the moving contact.
Preferably, the static contact is made of red copper;
and/or the moving contact is made of red copper.
Preferably, the material of the insulating shell is epoxy resin.
The utility model discloses a power electronic device is disclosed in the second aspect, including the switching, the switching does the utility model discloses the pneumatic isolator of the first aspect disclosed.
In summary, the utility model provides a pneumatic isolating switch and a power electronic device, which are fixed on the insulating shell through a cylinder; the moving contact is fixed on a piston of the cylinder, and the shock absorber is arranged between the moving contact and the piston; the static contact is fixed on the insulating shell and is used for being matched with the moving contact. Through the pneumatic isolating switch and the power electronic device, the moving contact and the static contact are driven to be in contact and disconnected when the cylinder does piston motion, so that the switch is realized, in the process of contacting the moving contact and the static contact, the flexible contact of the moving contact and the static contact can be realized through the arranged shock absorber, the impact force generated in the contact process is reduced, the service life of the contact is effectively prolonged, and the service life of the power electronic device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front view of a pneumatic isolating switch provided in an embodiment of the present invention;
fig. 2 is a side view of a pneumatic isolating switch according to an embodiment of the present invention;
fig. 3 is a cross-sectional view taken along section line a-a of fig. 1.
The device comprises a static contact 1, a moving contact 2, a shock absorber 3, a fixing bolt 4, a cylinder 5 and an insulating shell 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An embodiment of the utility model provides a pneumatic isolator, refer to fig. 1 to fig. 3, do the utility model discloses pneumatic isolator's schematic structure, pneumatic isolator, include: the device comprises a static contact 1, a moving contact 2, a shock absorber 3, a cylinder 5 and an insulating shell 6;
the cylinder 5 is fixed on the insulating shell 6; the moving contact 2 is fixed on a piston of the cylinder 5, and the shock absorber 3 is arranged between the moving contact 2 and the piston;
the static contact 1 is fixed on the insulating shell 6 and is used for being matched with the moving contact 2.
It should be noted that the moving contact 2 is driven by a piston of the cylinder 5, and can realize the contact between the moving contact 2 and the static contact 1, thereby realizing the switching function.
It should be further noted that, by the aid of the shock absorber 3, when the moving contact 2 is in contact with the static contact 1, the contact mode of the moving contact 2 with the static contact 1 is optimized, and when the moving contact 2 is in contact with the static contact 1, the moving contact 2 can be self-adjusted, and the moving contact 2 can be in flexible contact with the static contact 1.
The bumper shock absorber 3 is the part that has elastic property material to make, can be the spring that the spring steel was made, still can make the cavernosum for the sponge the utility model discloses in, elastic property material is not limited only to spring steel and sponge.
The embodiment of the application is fixed on the insulating shell through the cylinder; the moving contact is fixed on a piston of the cylinder, and the shock absorber is arranged between the moving contact and the piston; the static contact is fixed on the insulating shell and is used for being matched with the moving contact. Through the pneumatic isolating switch disclosed above, the moving contact is driven to be in contact with and disconnected from the static contact when the piston of the cylinder moves, so that the switch is realized, in the contact process of the moving contact and the static contact, the flexible contact of the moving contact and the static contact can be realized through the arranged shock absorber, the impact force generated during contact is reduced, and the service life of the contact is effectively prolonged.
Further, the cylinder 5 and the movable contact 2 are at the same electric potential.
It should be noted that, with such an arrangement, the connection mode of the movable contact 2 and the cylinder 5 is simplified, and the overall size of the device is reduced.
Specifically, the insulating housing 6 is provided with an assembly groove, the cylinder 5 is fixed at the bottom of the assembly groove, and the static contact 1 is fixed at the notch of the assembly groove.
It should be noted that, through the assembly groove in the insulating housing 6, the cylinder 5 and the stationary contact 1 can be better fixed, thereby reducing the installation difficulty.
Specifically, the two static contacts 1 are fixed relatively to the notch of the assembly groove.
It should be noted that, the two static contacts 1 are relatively fixed to the notches of the assembly groove, so that when the piston moves outwards, the moving contact 2 is convenient to contact with the two static contacts 1 at the same time, thereby simplifying installation and reducing installation difficulty.
Further, still include: a fixing bolt 4;
the moving contact 2 is fixed on a piston of the cylinder 5 through the fixing bolt 4.
Furthermore, the moving contact 2 and the static contact 1 are in contact fit with each other by inclined surfaces.
Specifically, the outer circumferential surface of the moving contact 2 is a conical surface, one end of the moving contact close to the static contact 1 is a small-diameter end, and the inner circumferential surface of the static contact 1 is a conical surface matched with the outer circumferential surface of the moving contact 2.
It should be noted that, by matching the inner side conical surface of the static contact 1 with the outer side circumferential surface of the moving contact 2, the contact area between the static contact 1 and the moving contact 2 can be effectively increased, so that the current flux of the current is effectively increased.
Specifically, the static contact 1 is made of red copper;
and/or the moving contact 2 is made of red copper.
The red copper is named as a copper simple substance because the color of the copper simple substance is purple red. The electrical conductivity and thermal conductivity of red copper are second to those of silver, and the red copper is widely used for manufacturing electric conduction and heat conduction devices. The red copper is industrial pure copper, the melting point of the red copper is 1083 ℃, the red copper has no isomerous transformation, the relative density is 8.9, and the red copper is five times of magnesium.
It should be noted that the static contact 1 and the moving contact 2 may be made of the same material, i.e. both made of red copper, or may be made of different conductive materials, in the present invention, the materials of the static contact 1 and the moving contact 2 are preferably made of red copper, but not limited thereto.
Specifically, the material of the insulating housing 6 is epoxy resin.
The epoxy resin is a generic term for a polymer having two or more epoxy groups in a molecule. It is a polycondensation product of epichlorohydrin and bisphenol A or a polyol. Because of the chemical activity of the epoxy group, a plurality of compounds containing active hydrogen can be used for ring opening, curing and crosslinking to generate a network structure, so that the epoxy group is a thermosetting resin and is not conductive.
The embodiment of the application also discloses a power electronic device, includes: and (5) switching.
The switching is a pneumatic isolating switch;
the pneumatic isolating switch comprises: the device comprises a static contact 1, a moving contact 2, a shock absorber 3, a cylinder 5 and an insulating shell 6;
the cylinder 5 is fixed on the insulating shell 6; the moving contact 2 is fixed on a piston of the cylinder 5, and the shock absorber 3 is arranged between the moving contact 2 and the piston;
the static contact 1 is fixed on the insulating shell 6 and is used for being matched with the moving contact 2.
The embodiment of the application is fixed on the insulating shell through the cylinder; the moving contact is fixed on a piston of the cylinder, and the shock absorber is arranged between the moving contact and the piston; the static contact is fixed on the insulating shell and is used for being matched with the moving contact. Through the power electronic device disclosed above, the moving contact is driven to be in contact with and disconnected from the static contact when the cylinder does piston motion, so that a switch is realized.
In order to facilitate understanding of the above solution, the present invention will be further described below based on fig. 1 to 3.
A cylinder and a moving contact are at the same potential, the moving contact is provided with an automatic adjusting space by optimizing the contact mode of the moving contact and a static contact when in connection, and the moving contact is in flexible contact with the static contact simultaneously, so that the effective contact area and the flow rate are improved, the switch volume is reduced, and the reliability is improved.
A pneumatic isolating switch is mainly composed of a static contact, a moving contact, a shock absorber, a fixing bolt and an insulating shell. The cylinder is fixed on the insulating casing of epoxy board preparation, and the stationary contact of two red copper preparations is fixed in the both sides of passageway by the bolt. A moving contact made of red copper is fixed on a cylinder piston by a bolt, and the piston drives the moving contact to move so as to realize the conduction or disconnection of the moving contact and a fixed contact.
The innovation points are as follows:
1. a shock absorber is additionally arranged at the joint of the cylinder piston and the moving contact, and the moving contact is in flexible contact with the fixed contact, so that the impact force during contact is reduced, and the service life of the contact is prolonged.
2. The cylinder and the moving contact are at the same potential, so that the connection mode of the moving contact and the cylinder is simplified, and the overall size of the equipment is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A pneumatic isolating switch, comprising: the device comprises a fixed contact (1), a movable contact (2), a shock absorber (3), a cylinder (5) and an insulating shell (6);
the cylinder (5) is fixed on the insulating shell (6); the moving contact (2) is fixed on a piston of the cylinder (5), and the shock absorber (3) is arranged between the moving contact (2) and the piston;
the static contact (1) is fixed on the insulating shell (6) and is used for being matched with the moving contact (2).
2. Pneumatic disconnector according to claim 1, characterized in that the cylinder (5) is at the same potential as the moving contact (2).
3. The pneumatic disconnector according to claim 1, characterized in that the insulating housing (6) has a mounting groove, the cylinder (5) is fixed at the bottom of the mounting groove, and the stationary contact (1) is fixed at the notch of the mounting groove.
4. A pneumatic disconnector according to claim 3, characterized in that the two stationary contacts (1) are fixed opposite to each other in the notches of the assembly slots.
5. The pneumatic isolating switch of claim 1, further comprising: a fixing bolt (4);
the moving contact (2) is fixed on a piston of the cylinder (5) through the fixing bolt (4).
6. The pneumatic isolating switch according to claim 1, characterized in that the moving contact (2) and the stationary contact (1) are in a bevel contact fit.
7. The pneumatic isolating switch according to claim 6, wherein the outer circumferential surface of the movable contact (2) is a conical surface, one end of the movable contact close to the fixed contact (1) is a small diameter end, and the inner circumferential surface of the fixed contact (1) is a conical surface matched with the outer circumferential surface of the movable contact (2).
8. The pneumatic isolating switch according to claim 1, characterized in that the material of the stationary contact (1) is red copper;
and/or the moving contact (2) is made of red copper.
9. Pneumatic disconnector according to claim 1, characterized in that the material of the insulating housing (6) is epoxy.
10. A power electronic device comprising a switch as a pneumatic isolating switch as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022040677.1U CN213124256U (en) | 2020-09-17 | 2020-09-17 | Pneumatic isolating switch and power electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022040677.1U CN213124256U (en) | 2020-09-17 | 2020-09-17 | Pneumatic isolating switch and power electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213124256U true CN213124256U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022040677.1U Active CN213124256U (en) | 2020-09-17 | 2020-09-17 | Pneumatic isolating switch and power electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213124256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872152A (en) * | 2021-12-01 | 2021-12-31 | 国网山东省电力公司高密市供电公司 | A power electronic monitoring system and its working method |
| CN117594391A (en) * | 2023-10-26 | 2024-02-23 | 武汉杭久电气有限公司 | A high-speed switching structure for DC air circuit breaker |
-
2020
- 2020-09-17 CN CN202022040677.1U patent/CN213124256U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872152A (en) * | 2021-12-01 | 2021-12-31 | 国网山东省电力公司高密市供电公司 | A power electronic monitoring system and its working method |
| CN113872152B (en) * | 2021-12-01 | 2022-04-05 | 国网山东省电力公司高密市供电公司 | Power electronic monitoring system and working method thereof |
| CN117594391A (en) * | 2023-10-26 | 2024-02-23 | 武汉杭久电气有限公司 | A high-speed switching structure for DC air circuit breaker |
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