CN111293667B - Bus low residual voltage protection device for power transmission and transformation system - Google Patents
Bus low residual voltage protection device for power transmission and transformation system Download PDFInfo
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- CN111293667B CN111293667B CN202010194347.XA CN202010194347A CN111293667B CN 111293667 B CN111293667 B CN 111293667B CN 202010194347 A CN202010194347 A CN 202010194347A CN 111293667 B CN111293667 B CN 111293667B
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- Prior art keywords
- baffle
- spring
- sliding block
- inclined plane
- cabinet body
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
Abstract
The invention discloses a bus low residual voltage protection device for a power transmission and transformation system, and relates to the technical field of circuit protection devices; the improved wardrobe comprises a wardrobe body and an installation plate, wherein the installation plate is positioned below the wardrobe body, the bottom of the wardrobe body is fixedly connected with a first support plate and a second support plate, the installation plate is fixedly connected with a guide rail, the guide rail is slidably connected with a first sliding block and a second sliding block which slide along the axis of the guide rail, the installation plate is fixedly connected with a first baffle and a second baffle, the first baffle is positioned on the outer side of the first sliding block, a first spring is arranged between the first sliding block and the first baffle, and a second spring is arranged between the second sliding block and the second baffle; and third springs are arranged on the outer sides of the first baffle and the second baffle. The invention buffers the shock impact, thereby damping the cabinet body, keeping the circuit connection in the cabinet body reliable and improving the running stability of the device.
Description
The technical field is as follows:
the invention relates to the technical field of power transmission and transformation protection devices, in particular to a bus low residual voltage protection device for a power transmission and transformation system.
Background art:
in a power transmission and transformation system, an overvoltage phenomenon is very common, along with the rapid development of the power industry and the miniaturization of the design of a switch cabinet, a large amount of application of a power cable provides new requirements for insulation matching and overvoltage protection, along with the expansion of a power supply system and the use of a large amount of vacuum circuit breakers, the frequency generated by overvoltage is gradually increased, and if no precautionary measures are taken, the impact of overvoltage is likely to occur at any time to clamp and age system electrical equipment in an insulation manner, so that the system electrical equipment has a fault of insulation breakdown. If the overvoltage is not effectively limited, accidents such as circuit blasting, motor insulation breakdown, lightning arrester explosion, voltage transformer burnout and the like can be caused. In the current situation of overvoltage prevention and control in a power transmission and transformation system, a bus low residual voltage protection device is generally adopted to protect a circuit system, so that the occurrence of system insulation breakdown accidents is prevented and controlled, the service life is prolonged, and the operation stability of the system is improved.
The low residual voltage protection device of generating line generally installs at the internal protection of protection cabinet, and the current protection device cabinet body adopts to fix at subaerial mode fixed, and the internal circuit wiring of cabinet receives cabinet body bottom vibrations external force collision influence very easily, causes the line connection contact port not hard up for protection device will unable normal work, improves in order to satisfy the user demand to this needs.
The invention content is as follows:
the invention aims to at least solve the technical problems that the cabinet body of the existing protection device is fixed in a mode of being fixed on the ground, and the line connection in the cabinet body is easily impacted by the external shock force at the bottom of the cabinet body, so that the line connection contact port is loosened, and the protection device cannot normally work, and provides a bus low residual voltage protection device for a power transmission and transformation system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a bus low residual voltage protection device for a power transmission and transformation system comprises a cabinet body and a mounting plate, wherein the mounting plate is positioned below the cabinet body, the bottom of the cabinet body is fixedly connected with a first supporting plate and a second supporting plate, the mounting plate is fixedly connected with a guide rail, the guide rail is connected with a first sliding block and a second sliding block which slide along the axis of the guide rail in a sliding manner, the first sliding block and the second sliding block are respectively positioned at the outer sides of the first supporting plate and the second supporting plate, a first inclined plane is arranged at one corner, close to the first supporting plate, of the upper end of the first sliding block, a second inclined plane is arranged at one corner, opposite to the first sliding block, of the bottom of the first supporting plate, the first inclined plane is attached to the second inclined plane and can slide along the second inclined plane, a third inclined plane is arranged at one corner, close to the second supporting plate, of the upper end of the second sliding block, and a fourth inclined plane is arranged at one corner, opposite to the second sliding block, of the bottom of the second supporting plate, the third inclined plane is attached to the fourth inclined plane and can slide along the fourth inclined plane, a first baffle plate and a second baffle plate are fixedly connected to the mounting plate, the first baffle plate is located on the outer side of the first sliding block, a first spring is arranged between the first sliding block and the first baffle plate, the second baffle plate is located on the outer side of the second sliding block, and a second spring is arranged between the second sliding block and the second baffle plate; the outside of first baffle, second baffle all is equipped with the third spring, the lower extreme at the cabinet body is fixed to the upper end of third spring, the lower extreme fixed connection of third spring is on the mounting panel.
Furthermore, the first support plate and the second support plate are symmetrically arranged, the first baffle and the second baffle are symmetrically arranged, and the third springs are symmetrically arranged on the outer sides of the first baffle and the second baffle.
Further, the cabinet body bottom fixedly connected with first fixed block, first fixed block symmetrical arrangement is in the outside of third spring, fixedly connected with second fixed block on the mounting panel, the second fixed block is located the outside of first fixed block, be equipped with transverse arrangement's elastic support mechanism between first fixed block and the second fixed block.
Further, elastic support mechanism includes a fixed cylinder, a fixed cylinder fixed connection is on first fixed block, be equipped with the telescopic link in the fixed cylinder, the one end of telescopic link alternates in the fixed cylinder and be equipped with fourth compression spring between the bottom of tip and fixed cylinder, the other end of telescopic link articulates there is the gyro wheel, the outside of gyro wheel is supported on the inboard lateral wall of second fixed block.
Furthermore, the outer side of the second fixing block is flush with the outer side wall of the cabinet body.
Furthermore, the elastic supporting mechanisms on the first fixing block are arranged in an upper row and a lower row.
The bus low residual voltage protection device for the power transmission and transformation system has the following beneficial effects: when the cabinet body in the device has shock and other impacts outside the ground, the shock is transmitted to the mounting plate, the mounting plate is transmitted to the first sliding block and the second sliding block, the first sliding block, the second sliding block, the first supporting plate and the second supporting plate are extruded and guided through the inclined surface, so that the first sliding block and the second sliding block extrude the first spring and the second spring, the shock energy is absorbed through the first spring and the second spring, the shock impact is reduced, the shock is absorbed for the cabinet body, the circuit connection in the cabinet body is reliable, and the running stability of the device is improved; the cabinet body can be further damped through the third spring, and the up-down damping effect is improved; the transverse vibration can be further slowed down through the elastic supporting mechanism between the first fixing block and the second fixing block, and the transverse damping effect is improved; the elastic supporting mechanism is contacted with the second fixing block through the roller, so that the device is prevented from being clamped.
Description of the drawings:
the following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
fig. 1 is a schematic structural diagram of a bus low residual voltage protection device for a power transmission and transformation system according to the present invention;
FIG. 2 is a partial structural view of the portion A in FIG. 1;
FIG. 3 is a partial structural view of the portion B in FIG. 1;
fig. 4 is a partial structural diagram of the part C in fig. 2.
The numbering in the figures illustrates: 1-cabinet body, 11-first supporting plate, 12-second supporting plate, 2-mounting plate, 21-guide rail, 22-first sliding block, 23-second sliding block, 24-first baffle, 25-second baffle, 26-first spring, 27-second spring, 28-third spring, 3-first fixed block, 4-second fixed block, 5-elastic supporting mechanism, 51-fixed cylinder, 52-telescopic rod, 53-fourth compression spring and 54-roller.
The specific implementation mode is as follows:
it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up-down-left-right-front-back … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the figure) -motion situation, etc., and if the specific posture is changed, the directional indicators are changed accordingly, and the connection may be a direct connection or an indirect connection.
As shown in fig. 1, 2, 3 and 4, a bus low residual voltage protection device for a power transmission and transformation system includes a cabinet body 1 and a mounting plate 2, the mounting plate 2 is located below the cabinet body 1, the bottom of the cabinet body 1 is fixedly connected with a first support plate 11 and a second support plate 12, the mounting plate 2 is fixedly connected with a guide rail 21, the guide rail 21 is slidably connected with a first slider 22 and a second slider 23 sliding along the axis of the guide rail 21, the first slider 22 and the second slider 23 are respectively located at the outer sides of the first support plate 11 and the second support plate 12, a first inclined surface is arranged at one corner of the upper end of the first slider 22 close to the first support plate 11, a second inclined surface is arranged at one corner of the bottom of the first support plate 11 opposite to the first slider 22, the first inclined surface is attached to the second inclined surface and can slide along the second inclined surface, a third inclined surface is arranged at one corner of the upper end of the second slider 23 close to the second support plate 12, a fourth inclined surface is arranged at one corner of the bottom of the second support plate 12, which is opposite to the second slider 23, the third inclined surface is attached to the fourth inclined surface and can slide along the fourth inclined surface, a first baffle plate 24 and a second baffle plate 25 are fixedly connected to the mounting plate 2, the first baffle plate 24 is positioned at the outer side of the first slider 22, a first spring 26 is arranged between the first slider 22 and the first baffle plate 24, the second baffle plate 25 is positioned at the outer side of the second slider 23, and a second spring 27 is arranged between the second slider 23 and the second baffle plate 25; the outside of first baffle 24, second baffle 25 all is equipped with third spring 28, the lower extreme at the cabinet body 1 is fixed to the upper end of third spring 28, the lower extreme fixed connection of third spring 28 is on mounting panel 2.
Specifically, the first support plate 11 and the second support plate 12 are symmetrically arranged, the first baffle 24 and the second baffle 25 are symmetrically arranged, and the third spring 28 is symmetrically arranged at the outer sides of the first baffle 24 and the second baffle 25.
Specifically, the cabinet body 1 bottom fixedly connected with first fixed block 3, 3 symmetric arrangement of first fixed block are in the outside of third spring 28, fixedly connected with second fixed block 4 on the mounting panel 2, second fixed block 4 is located the outside of first fixed block 3, be equipped with transverse arrangement's elastic support mechanism 5 between first fixed block 3 and the second fixed block 4.
Specifically, the elastic support mechanism 5 includes a fixed cylinder 51, the fixed cylinder 51 is fixedly connected to the first fixed block 3, an expansion link 52 is disposed in the fixed cylinder 51, one end of the expansion link 52 is inserted into the fixed cylinder 51, a fourth compression spring 53 is disposed between the end of the expansion link and the bottom of the fixed cylinder 51, the other end of the expansion link 52 is hinged to a roller 54, and the outer side of the roller 54 abuts against the inner side wall of the second fixed block 4.
Specifically, the outer side of the second fixing block 4 is flush with the outer side wall of the cabinet body 1.
Specifically, the elastic support mechanisms 5 on the first fixing block 3 are arranged in an upper row and a lower row.
The bus low residual voltage protection device for the power transmission and transformation system has the following beneficial effects: when the cabinet body 1 in the device has shocks such as shocks outside the ground, the shocks are transmitted to the mounting plate 2, the mounting plate 2 is transmitted to the first slider 22 and the second slider 23, the first slider 22, the second slider 23, the first support plate 11 and the second support plate 12 are extruded and guided through inclined planes, so that the first slider 22 and the second slider 23 extrude the first spring 26 and the second spring 27, the first spring 26 and the second spring 27 absorb shock energy, shock shocks are reduced, the cabinet body 1 is damped, the circuit connection in the cabinet body 1 is reliable, and the device is stable in operation; the cabinet body 1 can be further damped through the third spring 28, and the up-and-down damping effect is improved; the transverse vibration can be further slowed down through the elastic supporting mechanism 5 between the first fixing block 3 and the second fixing block 4, and the transverse damping effect is improved; the elastic supporting mechanism 5 is contacted with the second fixed block 4 through a roller 54, so that the device is prevented from being clamped.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is to be protected by the following claims and their equivalents.
Claims (6)
1. A bus low residual voltage protection device for a power transmission and transformation system is characterized in that: including the cabinet body (1), mounting panel (2) are located the below of the cabinet body (1), the bottom fixedly connected with first backup pad (11) and second backup pad (12) of the cabinet body (1), fixedly connected with guide rail (21) on mounting panel (2), sliding connection has along the gliding first slider (22) of guide rail (21) axis and second slider (23) on guide rail (21), first slider (22) are located the outside of first backup pad (11) and second backup pad (12) respectively with second slider (23), the one corner that the upper end of first slider (22) is close to first backup pad (11) is equipped with first inclined plane, the bottom of first backup pad (11) is equipped with the second inclined plane with first slider (22) relative one corner, first inclined plane pastes on the second inclined plane and can follow the second inclined plane and slide, a third inclined plane is arranged at one corner, close to the second support plate (12), of the upper end of the second sliding block (23), a fourth inclined plane is arranged at one corner, opposite to the second sliding block (23), of the bottom of the second support plate (12), the third inclined plane is attached to the fourth inclined plane and can slide along the fourth inclined plane, a first baffle (24) and a second baffle (25) are fixedly connected to the mounting plate (2), the first baffle (24) is located on the outer side of the first sliding block (22), a first spring (26) is arranged between the first sliding block (22) and the first baffle (24), the second baffle (25) is located on the outer side of the second sliding block (23), and a second spring (27) is arranged between the second sliding block (23) and the second baffle (25); the outside of first baffle (24), second baffle (25) all is equipped with third spring (28), the lower extreme at the cabinet body (1) is fixed to the upper end of third spring (28), the lower extreme fixed connection of third spring (28) is on mounting panel (2).
2. The bus bar low residual voltage protection device for the power transmission and transformation system according to claim 1, characterized in that: the first supporting plate (11) and the second supporting plate (12) are symmetrically arranged, the first baffle plate (24) and the second baffle plate (25) are symmetrically arranged, and the third spring (28) is symmetrically arranged on the outer sides of the first baffle plate (24) and the second baffle plate (25).
3. The bus bar low residual voltage protection device for the power transmission and transformation system according to claim 1, wherein: the cabinet body (1) bottom fixedly connected with first fixed block (3), first fixed block (3) symmetrical arrangement is in the outside of third spring (28), fixedly connected with second fixed block (4) on mounting panel (2), second fixed block (4) are located the outside of first fixed block (3), be equipped with transverse arrangement's elastic support mechanism (5) between first fixed block (3) and second fixed block (4).
4. A bus bar low residual voltage protection device for a power transmission and transformation system according to claim 3, wherein: elastic support mechanism (5) are including a fixed section of thick bamboo (51), a fixed section of thick bamboo (51) fixed connection is on first fixed block (3), be equipped with telescopic link (52) in a fixed section of thick bamboo (51), the one end of telescopic link (52) alternates in a fixed section of thick bamboo (51) and be equipped with fourth compression spring (53) between the bottom of tip and a fixed section of thick bamboo (51), the other end of telescopic link (52) articulates there is gyro wheel (54), the outside of gyro wheel (54) is supported on the inboard lateral wall of second fixed block (4).
5. The bus bar low residual voltage protection device for the power transmission and transformation system according to claim 4, wherein: the outer side of the second fixing block (4) is flush with the outer side wall of the cabinet body (1).
6. The bus bar low residual voltage protection device for the power transmission and transformation system according to claim 4, wherein: the elastic supporting mechanisms (5) on the first fixing block (3) are arranged in an upper row and a lower row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194347.XA CN111293667B (en) | 2020-03-19 | 2020-03-19 | Bus low residual voltage protection device for power transmission and transformation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194347.XA CN111293667B (en) | 2020-03-19 | 2020-03-19 | Bus low residual voltage protection device for power transmission and transformation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111293667A CN111293667A (en) | 2020-06-16 |
| CN111293667B true CN111293667B (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010194347.XA Active CN111293667B (en) | 2020-03-19 | 2020-03-19 | Bus low residual voltage protection device for power transmission and transformation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111293667B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112867297A (en) * | 2021-01-08 | 2021-05-28 | 浙江工贸职业技术学院 | Computer network equipment cabinet |
| CN113710025B (en) * | 2021-08-06 | 2022-05-27 | 四川大学 | Electric control management device with protection performance for medical robot |
| CN114389249B (en) * | 2022-01-17 | 2023-03-21 | 苏州达晶微电子有限公司 | Low residual voltage protection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208257384U (en) * | 2018-05-21 | 2018-12-18 | 安徽亚智电气有限公司 | Low residual voltage bus over voltage protection device |
-
2020
- 2020-03-19 CN CN202010194347.XA patent/CN111293667B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208257384U (en) * | 2018-05-21 | 2018-12-18 | 安徽亚智电气有限公司 | Low residual voltage bus over voltage protection device |
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| Publication number | Publication date |
|---|---|
| CN111293667A (en) | 2020-06-16 |
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