CN112186587A - Self-ejection opening device for power distribution cabinet based on principle of thermal expansion and cold contraction - Google Patents
Self-ejection opening device for power distribution cabinet based on principle of thermal expansion and cold contraction Download PDFInfo
- Publication number
- CN112186587A CN112186587A CN202010986159.0A CN202010986159A CN112186587A CN 112186587 A CN112186587 A CN 112186587A CN 202010986159 A CN202010986159 A CN 202010986159A CN 112186587 A CN112186587 A CN 112186587A
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- Prior art keywords
- heat
- piston
- principle
- cold
- cabinet
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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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
- F16F15/023—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 fluid means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model provides a switch board is with opening device from bullet based on expend with heat and contract with cold principle, relates to switch board technical field, and a switch board is with opening device from bullet based on expend with heat and contract with cold principle, including the cabinet door, the right side inner wall fixedly connected with magnetic path of cabinet door, the right side swing joint of cabinet door has the cabinet body, and the piston groove has been seted up at the middle part of the cabinet body, and the inner wall swing joint in piston groove has the piston piece, the left inner wall fixedly connected with resistance of piston piece, the middle part fixedly connected with electromagnet of. This switch board is with device of opening from bullet based on expend with heat and contract with cold principle, cooperation through gas tank and slider is used, when the inside high temperature of switch board, the gaseous thermal energy of gas tank, at this moment the slider can move to the left side, make the electromagnet outage, at this moment piston piece and cabinet experience move to the left side under the effort of slider and spring, make the cabinet door automatic open to overheated automatic effect of opening has been reached, make the heat in time discharge, the security that has improved the switch board.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a self-popping device for a power distribution cabinet based on a principle of thermal expansion and cold contraction.
Background
The power distribution cabinet is a general name of a motor control center, the power distribution cabinet is used in occasions with dispersed loads and less loops, the motor control center is used in occasions with concentrated loads and more loops, the power distribution cabinet distributes electric energy of a certain circuit of the previous-stage power distribution equipment to nearby loads, the equipment provides protection, monitoring and control for the loads, and the existing power distribution cabinet frequently encounters some problems during use, so that the use of the power distribution cabinet is caused to be problematic.
Present switch board when using, the inside overheated condition of switch board often can appear, leads to inside high temperature, and the resistance value that causes the circuit is too big, influences the transmission efficiency of circuit to inside high temperature still has conflagration potential safety hazard, leads to the switch board to have the possibility spontaneous combustion very much, causes unnecessary economic loss, has reduced the security of switch board.
Therefore, the self-popping device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold is provided to solve the problems.
Disclosure of Invention
The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a switch board is with device of opening from bullet based on expend with heat and contract with cold principle, which comprises a cabinet door, the right side inner wall fixedly connected with magnetic path of cabinet door, the right side swing joint of cabinet door has the cabinet body, the piston groove has been seted up at the middle part of the cabinet body, the inner wall swing joint in piston groove has the piston piece, the left inner wall fixedly connected with resistance of piston piece, the middle part fixedly connected with electromagnet of piston piece, the inner wall of piston piece just is close to the outside of electromagnet and sets up the damping hole of equal and distribution, the inner wall fixedly connected with spring on piston piece right side, the right side fixedly connected with slider of spring, the middle part inner wall fixedly connected with dielectric plate of slider, the air duct with slider looks adaptation is seted up to the inner wall of the cabinet body, the inner wall of piston.
The invention has the following beneficial effects:
1. this switch board is with device of opening from bullet based on expend with heat and contract with cold principle, cooperation through gas tank and slider is used, when the inside high temperature of switch board, the gaseous thermal energy of gas tank, at this moment the slider can move to the left side, make the electromagnet outage, at this moment piston piece and cabinet experience move to the left side under the effort of slider and spring, make the cabinet door automatic open to overheated automatic effect of opening has been reached, make the heat in time discharge, the security that has improved the switch board.
2. This switch board is with device of opening by bullet based on expend with heat and contract with cold principle, cooperation through electromagnet and damping hole is used, when cabinet door and the cabinet body are pegged graft, the electromagnet is in the on state, attract each other with the magnetic path, and the magnetism of electromagnet makes the magnetic current in the damping hole become the viscosity degree and increases, effectively obstruct the removal of piston block, when the switch board is inside overheated, the electromagnet outage, at this moment magnetic current becomes the viscosity degree and reduces, the removal of the piston block of being convenient for, thereby the effect of being convenient for the cabinet door to open has been reached, practicality and sensitivity have been improved.
Further, the cabinet door is made of hard high-strength materials and does not have conductivity, the cabinet door plays a role in fixing all parts, the magnetic blocks are made of rubidium magnet materials and are smaller than the cabinet door in size, and the magnetic blocks play a role in magnetic transmission and tightly adsorb the cabinet door and the cabinet body together.
Further, the cabinet body is made of hard high-strength materials, the cabinet body does not have magnetic conductivity and electric conductivity, the cabinet body plays a role in fixing all parts, the size of the piston groove is smaller than that of the cabinet body, magnetorheological fluid is filled in the piston groove, and the piston groove plays a role in facilitating the movement of the piston block and storing the magnetorheological fluid.
Furthermore, the piston block is made of hard high-strength materials and is in a cross shape, the piston block plays a role in transmission, the resistor is a piezoresistor, the minimum path voltage of the resistor is smaller than the maximum circuit voltage of the negative plate, and the resistor plays a role in controlling the connection condition of the electromagnet circuit.
Further, the size of the electromagnet is smaller than that of the piston block, the magnetism of the left side of the electromagnet is opposite to that of the right side of the magnetic block, the electromagnet plays a role in magnetic transmission, the damping hole is cylindrical, the diameter of the damping hole is smaller than the height of the piston block, and the damping hole plays a role in facilitating flowing of the magnetorheological fluid.
Further, the material of slider does not have all magnetic conductivities for stereoplasm high strength material and slider, and the slider plays driven effect, the size of dielectric plate is less than the size of slider, and the dielectric plate plays the effect that changes circuit voltage size, the right side of gas tank is filled with compressed gas and compressed gas has expend with heat and contract with cold's nature, and the gas tank plays the effect of storing compressed gas.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a schematic diagram of a slider left-shift structure according to the present invention;
FIG. 4 is an enlarged partial view of the portion B in FIG. 3 according to the present invention.
In the figure: 1. a cabinet door; 2. a magnetic block; 3. a cabinet body; 4. a piston groove; 5. a piston block; 6. a resistance; 7. an electromagnet; 8. a damping hole; 9. a spring; 10. a slider; 11. a dielectric plate; 12. an air tank; 13. a positive plate; 14. and a negative plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.
Referring to fig. 1-4, a self-ejection device for a power distribution cabinet based on a principle of thermal expansion and cold contraction comprises a cabinet door 1, wherein the cabinet door 1 is made of a hard high-strength material, the cabinet door 1 does not have electrical conductivity, the cabinet door 1 plays a role in fixing components, the magnetic block 2 is made of a rubidium magnet material, the size of the magnetic block 2 is smaller than that of the cabinet door 1, the magnetic block 2 plays a role in magnetic transmission, the cabinet door 1 and the cabinet body 3 are tightly adsorbed together, the magnetic block 2 is fixedly connected to the inner wall of the right side of the cabinet door 1, the cabinet body 3 is movably connected to the right side of the cabinet door 1, the cabinet body 3 is made of a hard high-strength material, the cabinet body 3 does not have magnetic conductivity and electrical conductivity, the cabinet body 3 plays a role in fixing components, the size of a piston groove 4 is smaller than that of the cabinet body 3, magnetorheological fluid is filled in the.
The middle part of the cabinet body 3 is provided with a piston groove 4, the inner wall of the piston groove 4 is movably connected with a piston block 5, the material of the piston block 5 is a hard high-strength material, the shape of the piston block 5 is cross-shaped, the piston block 5 plays a role in transmission, the resistor 6 is a piezoresistor, the minimum path voltage of the resistor 6 is smaller than the maximum circuit voltage of the negative plate 14, the resistor 6 plays a role in controlling the circuit communication state of the electromagnet 7, the inner wall on the left side of the piston block 5 is fixedly connected with the resistor 6, the middle part of the piston block 5 is fixedly connected with the electromagnet 7, the size of the electromagnet 7 is smaller than that of the piston block 5, the left magnetism of the electromagnet 7 is opposite to that on the right side of the magnetic block 2, the electromagnet 7 plays a role in magnetic transmission, the damping hole 8 is cylindrical, the diameter of the damping hole 8 is smaller than.
The inner wall of piston piece 5 and the outside that is close to electromagnet 7 seted up the damping hole 8 all with the distribution, inner wall fixedly connected with spring 9 on piston piece 5 right side, the right side fixedly connected with slider 10 of spring 9, the material of slider 10 is stereoplasm high strength material and slider 10 does not have all magnetic conductivity, slider 10 plays driven effect, the size of dielectric plate 11 is less than the size of slider 10, dielectric plate 11 plays the effect that changes circuit voltage size, the right side of gas tank 12 is filled with compressed gas and compressed gas has the property of expend with heat and contract with cold, gas tank 12 plays the effect of storing compressed gas, the middle part inner wall fixedly connected with dielectric plate 11 of slider 10, gas tank 12 with slider 10 looks adaptation is seted up to the inner wall of cabinet body 3, the inner wall of piston piece 5 and the top fixedly connected with positive plate 13 that is close to slider 10, the inner wall of piston piece 5 and the bottom fixedly connected with negative plate 14 that is close to.
The working principle is as follows: when the cabinet door 1 and the cabinet body 3 are relatively fixed, the electromagnet 7 and the magnetic block 2 attract each other at the moment, the cabinet door 1 is effectively guaranteed to be tightly closed, meanwhile, the piston block 5 is squeezed into the right side of the piston groove 4 by the cabinet door 1, at the moment, magnetorheological fluid in the piston groove 4 becomes high in viscosity under the magnetic action of the electromagnet 7, so that the viscosity of the magnetorheological fluid in the damping hole 8 is too high, the piston block 5 is effectively prevented from moving to the left side, the cabinet door 1 is effectively fixed, the slide block 10 on the right side is ejected to the right side under the action of the spring 9, at the moment, the relative area of the positive plate 13 and the negative plate 14 is increased to the maximum by the dielectric plate 11, at the moment, the circuit voltage passing through the negative plate 14 is larger than the;
when the inside high temperature of switch board, at this moment, the inboard compressed gas of gas tank 12 is heated and expands, slider 10 thinks the left side under the effect of atmospheric pressure and moves, at this moment, dielectric plate 11 reduces positive plate 13 and negative plate 14 relative area to the minimum, at this moment, the circuit voltage through negative plate 14 is less than the circuit voltage of resistance 6, so resistance 6 is in the state of opening circuit, lead to electromagnet 7 to be in the state of opening circuit, no longer produce magnetism, so electromagnet 7 no longer attracts each other with magnetic path 2 this moment, the viscosity of magnetorheological suspensions also descends at this moment, lead to piston block 5 can be free activity in piston groove 4, at this moment, piston block 5 can move to the left side under the effect of spring 9, ejecting left side with cabinet door 1, make cabinet door 1 open, in time dispel the heat, guarantee the power consumption safety of switch.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a switch board is with device that opens by bullet based on expend with heat and contract with cold principle, includes cabinet door (1), its characterized in that: the cabinet comprises a cabinet door (1), a magnet block (2) is fixedly connected to the inner wall of the right side of the cabinet door (1), a cabinet body (3) is movably connected to the right side of the cabinet door (1), a piston groove (4) is formed in the middle of the cabinet body (3), a piston block (5) is movably connected to the inner wall of the piston groove (4), a resistor (6) is fixedly connected to the inner wall of the left side of the piston block (5), an electromagnet (7) is fixedly connected to the middle of the piston block (5), damping holes (8) which are uniformly distributed are formed in the inner wall of the piston block (5) and close to the outer side of the electromagnet (7), a spring (9) is fixedly connected to the inner wall of the right side of the piston block (5), a slider (10) is fixedly connected to the right side of the spring (9), a dielectric plate (11) is fixedly connected to the inner wall of the middle of the slider (10), an air groove (12, the inner wall of the piston block (5) and the bottom close to the slide block (10) are fixedly connected with a negative plate (14).
2. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the cabinet door (1) is made of hard high-strength materials, and the cabinet door (1) is not conductive.
3. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the magnetic block (2) is made of a rubidium magnet material, and the size of the magnetic block (2) is smaller than that of the cabinet door (1).
4. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the cabinet body (3) is made of hard high-strength materials, and the cabinet body (3) is not provided with magnetic conductivity and electric conductivity.
5. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the size of the piston groove (4) is smaller than that of the cabinet body (3), and magnetorheological fluid is filled in the piston groove (4).
6. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the piston block (5) is made of hard high-strength materials, the piston block (5) is in a cross shape, the resistor (6) is a piezoresistor, and the minimum circuit voltage of the resistor (6) is smaller than the maximum circuit voltage of the negative plate (14).
7. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the size of the electromagnet (7) is smaller than that of the piston block (5), the magnetism of the left side of the electromagnet (7) is opposite to that of the right side of the magnetic block (2), the damping hole (8) is cylindrical, and the diameter of the damping hole (8) is smaller than the height of the piston block (5).
8. The self-ejection device for the power distribution cabinet based on the principle of expansion with heat and contraction with cold as claimed in claim 1, wherein: the slider (10) is made of hard high-strength materials, the slider (10) does not have magnetic permeability, the size of the dielectric plate (11) is smaller than that of the slider (10), and the right side of the air groove (12) is filled with compressed air which has the properties of expansion with heat and contraction with cold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986159.0A CN112186587A (en) | 2020-09-18 | 2020-09-18 | Self-ejection opening device for power distribution cabinet based on principle of thermal expansion and cold contraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986159.0A CN112186587A (en) | 2020-09-18 | 2020-09-18 | Self-ejection opening device for power distribution cabinet based on principle of thermal expansion and cold contraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112186587A true CN112186587A (en) | 2021-01-05 |
Family
ID=73921661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010986159.0A Withdrawn CN112186587A (en) | 2020-09-18 | 2020-09-18 | Self-ejection opening device for power distribution cabinet based on principle of thermal expansion and cold contraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112186587A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821214A (en) * | 2021-03-02 | 2021-05-18 | 何静伟 | Fire extinguishing type cabinet door used for power distribution cabinet |
| CN112865025A (en) * | 2021-02-23 | 2021-05-28 | 马海涛 | Automatic protection distribution switchgear for avoiding short circuit |
| CN112892164A (en) * | 2021-01-14 | 2021-06-04 | 浙江涵宸气动液压设备有限公司 | Intelligent manufacturing dryer capable of preventing overhigh temperature based on thermal expansion principle |
| CN115540574A (en) * | 2022-08-01 | 2022-12-30 | 恩硕智能(深圳)有限公司 | Air guide groove heat exchange system for toothbrush dryer |
-
2020
- 2020-09-18 CN CN202010986159.0A patent/CN112186587A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892164A (en) * | 2021-01-14 | 2021-06-04 | 浙江涵宸气动液压设备有限公司 | Intelligent manufacturing dryer capable of preventing overhigh temperature based on thermal expansion principle |
| CN112865025A (en) * | 2021-02-23 | 2021-05-28 | 马海涛 | Automatic protection distribution switchgear for avoiding short circuit |
| CN112821214A (en) * | 2021-03-02 | 2021-05-18 | 何静伟 | Fire extinguishing type cabinet door used for power distribution cabinet |
| CN115540574A (en) * | 2022-08-01 | 2022-12-30 | 恩硕智能(深圳)有限公司 | Air guide groove heat exchange system for toothbrush dryer |
| CN115540574B (en) * | 2022-08-01 | 2023-11-03 | 恩硕智能(深圳)有限公司 | Air guide groove heat exchange system for toothbrush dryer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210105 |
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| WW01 | Invention patent application withdrawn after publication |