CN111817179B - Prevent burning multiple pressure release formula switch board of arc - Google Patents
Prevent burning multiple pressure release formula switch board of arc Download PDFInfo
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- CN111817179B CN111817179B CN202010530252.0A CN202010530252A CN111817179B CN 111817179 B CN111817179 B CN 111817179B CN 202010530252 A CN202010530252 A CN 202010530252A CN 111817179 B CN111817179 B CN 111817179B
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- air inlet
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- baffle
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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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- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an arc-burning-prevention multi-pressure-relief type power distribution cabinet, which comprises: the top of the cabinet body is provided with a top cover, an electric bin is arranged in the cabinet body, a bottom mounting frame is arranged at the bottom of the electric bin, and a top isolation plate is arranged at the top of the electric bin; the annular air inlet set up in the bottom of the cabinet body, the centre is provided with the rotation spread groove, the inboard of rotating the spread groove is provided with annular baffle, annular baffle's centre is provided with the intercommunication mouth. The air outlet convergence plate and the air inlet convergence plate which are symmetrically arranged up and down in the cabinet body are both provided with an explosion-proof pressure relief and sealing structure, the concave flow baffle plate can sink when the pressure in the cabinet body is increased, so that the air duct connecting port is sealed, high-pressure blasting gas is prevented from being discharged through the air duct connecting port and the annular air inlet, surrounding electrical equipment and personnel are prevented from being damaged, the explosion-proof flow baffle plate can be lifted to adjust the size of the air outlet, the high-pressure blasting gas can be completely released through the air outlet, and the equipment is prevented from being damaged by blasting in the accumulation cabinet body.
Description
Technical Field
The invention relates to electrical equipment, in particular to an arc-burning-prevention multi-pressure-relief type power distribution cabinet.
Background
The power distribution cabinet is a general name of a motor control center, and is used in occasions with dispersed loads and less loops; motor control centers are used in load concentration and loop-rich applications, where they distribute the power from a circuit of a higher level of distribution equipment to nearby loads, which provide protection, monitoring and control of the loads. The applicant finds that when the humidity in the power distribution cabinet is large, or the electric power is fluctuated, short circuit arcing occurs between the wiring terminals in the power distribution cabinet very easily, the influence and the damage to the electrical equipment can be caused, and due to the fact that the voltage is high, the temperature of the arcing is extremely high, air in the cabinet body can be heated instantly in a short time, so that the air collision causes explosion, the power distribution cabinet can be damaged, and the damage to the electrical equipment and personnel around the cabinet can be caused.
Disclosure of Invention
In view of this, the present invention provides an arc-burning prevention multi-relief type power distribution cabinet.
Based on the above purpose, the invention provides a flame-proof arc multiple pressure relief type power distribution cabinet, which comprises:
the top of the cabinet body is provided with a top cover, an electric bin is arranged in the cabinet body, a bottom mounting frame is arranged at the bottom of the electric bin, and a top isolation plate is arranged at the top of the electric bin;
the annular air inlet is arranged at the bottom of the cabinet body, a rotating connecting groove is formed in the middle of the annular air inlet, an annular baffle is arranged on the inner side of the rotating connecting groove, and a communicating opening is formed in the middle of the annular baffle;
the air inlet converging plate is arranged on the inner side of the annular air inlet, the middle of the air inlet converging plate is provided with a fan, the top end of the air inlet converging plate is provided with an air channel connecting port, and the middle of the air channel connecting port is provided with a sealing rubber ring;
the concave flow baffle is arranged above the air duct connecting port, the outer side of the concave flow baffle is provided with a connecting frame, the outer end of the connecting frame is provided with a vertical sliding groove, and the middle of the vertical sliding groove is provided with a return spring;
the air outlet is arranged in the middle of the top cover, a protective baffle is arranged on the outer side of the air outlet, and an air outlet convergence plate is arranged below the air outlet convergence plate;
the anti-explosion flow baffle is arranged above the air outlet, a connecting sliding sleeve is arranged in the middle of the anti-explosion flow baffle, a vertical sliding rod is nested in the inner side of the connecting sliding sleeve, a buffer spring is arranged in the middle of the vertical sliding rod, and a limiting frame is arranged above the buffer spring;
the annular baffle is rotatably connected with the annular air inlet through the rotary connecting groove, and the annular air inlet is matched with the annular baffle in size;
the communication ports are symmetrically arranged relative to the vertical central line of the annular baffle, and the opening angle of the communication ports is ninety degrees;
the concave flow baffle is connected with the vertical sliding chute in a sliding manner through the connecting frame, and vertical center lines of the vertical sliding chutes are parallel to each other;
the vertical central line of the concave flow baffle and the vertical central line of the air duct connecting port are positioned on the same straight line, and the concave flow baffle and the sealing rubber ring are matched in size.
In some optional embodiments, the vertical center line of the air inlet collecting plate and the vertical center line of the air outlet collecting plate are located on the same straight line.
In some optional embodiments, a vertical center line of the anti-explosion flow baffle and a vertical center line of the air outlet are located on the same straight line, and a lower surface of the anti-explosion flow baffle and the vertical center line of the air outlet are perpendicular to each other.
In some optional embodiments, the explosion-proof flow baffle is slidably connected with the vertical sliding rods through the connecting sliding sleeves, and vertical center lines of the vertical sliding rods are parallel to each other.
From the above, according to the arc-burning-prevention multi-pressure-release type power distribution cabinet provided by the invention, the annular air inlet arranged at the bottom of the cabinet body is used for air inlet heat dissipation, the air outlet convergence plate and the air inlet convergence plate which are symmetrically arranged in the electrical bin are both provided with explosion-proof pressure-release and sealing structures, the concave flow baffle plate arranged at the air inlet convergence plate can sink when the pressure inside the cabinet body rises, so that the air duct connector is sealed, high-pressure blasting gas is prevented from being discharged through the air duct connector and the annular air inlet, damage to surrounding electrical equipment and personnel is avoided, the air outlet of the air outlet convergence plate is adjusted in size through the explosion-proof flow baffle plate, the high-pressure blasting gas can be completely released through the air outlet, and equipment damage caused by blasting in the accumulation cabinet body is avoided.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic front view of an embodiment of the present invention;
FIG. 3 is a schematic longitudinal cross-sectional structure of an embodiment of the present invention;
FIG. 4 is an exploded view of an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an annular air inlet according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an annular baffle of an embodiment of the invention;
FIG. 7 is a schematic view of an air outlet according to an embodiment of the present invention;
fig. 8 is a schematic structural view of an explosion-proof pressure release state according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are only used for convenience of expression and should not be construed as a limitation to the embodiments of the present invention, and no description is given in the following embodiments.
As an embodiment, an arc-burning prevention multiple pressure-relief type power distribution cabinet includes:
the top of the cabinet body 1 is provided with a top cover 101, an electric bin 102 is arranged in the cabinet body, the bottom of the electric bin 102 is provided with a bottom mounting frame 103, and the top of the electric bin 102 is provided with a top isolation plate 104;
the annular air inlet 2 is arranged at the bottom of the cabinet body 1, a rotating connecting groove 201 is formed in the middle of the annular air inlet, an annular baffle plate 202 is arranged on the inner side of the rotating connecting groove 201, and a communication opening 203 is formed in the middle of the annular baffle plate 202;
the air inlet converging plate 3 is arranged on the inner side of the annular air inlet 2, a fan 301 is arranged in the middle of the air inlet converging plate, an air duct connecting port 302 is arranged at the top end of the air inlet converging plate, and a sealing rubber ring 303 is arranged in the middle of the air duct connecting port 302;
the concave flow baffle 4 is arranged above the air duct connecting port 302, the outer side of the concave flow baffle 4 is provided with a connecting frame 401, the outer end of the connecting frame 401 is provided with a vertical chute 402, and the middle of the vertical chute 402 is provided with a return spring 403;
the air outlet 5 is arranged in the middle of the top cover 101, a protective baffle 501 is arranged on the outer side of the air outlet 5, and an air outlet convergence plate 502 is arranged below the air outlet;
the anti-explosion flow baffle 6 is arranged above the air outlet 5, a connecting sliding sleeve 601 is arranged in the middle of the anti-explosion flow baffle, a vertical sliding rod 602 is nested inside the connecting sliding sleeve 601, a buffer spring 603 is arranged in the middle of the vertical sliding rod 602, and a limiting frame 604 is arranged above the buffer spring 603.
Referring to fig. 1 to 7, as an embodiment of the present invention, an arc-burning prevention multiple voltage-relief type power distribution cabinet 1 includes: the top of the cabinet body 1 is provided with a top cover 101, an electric bin 102 is arranged in the cabinet body, the bottom of the electric bin 102 is provided with a bottom mounting frame 103, and the top of the electric bin 102 is provided with a top isolation plate 104; the annular air inlet 2 is arranged at the bottom of the cabinet body 1, a rotating connecting groove 201 is formed in the middle of the annular air inlet, an annular baffle plate 202 is arranged on the inner side of the rotating connecting groove 201, and a communication opening 203 is formed in the middle of the annular baffle plate 202; the air inlet converging plate 3 is arranged on the inner side of the annular air inlet 2, the middle of the air inlet converging plate is provided with a fan 301, the top end of the air inlet converging plate is provided with an air duct connecting port 302, and the middle of the air duct connecting port 302 is provided with a sealing rubber ring 303; the concave flow baffle 4 is arranged above the air duct connecting port 302, the outer side of the concave flow baffle 4 is provided with a connecting frame 401, the outer end of the connecting frame 401 is provided with a vertical chute 402, and the middle of the vertical chute 402 is provided with a return spring 403; the air outlet 5 is arranged in the middle of the top cover 101, a protective baffle 501 is arranged on the outer side of the air outlet 5, and an air outlet convergence plate 502 is arranged below the air outlet; the anti-explosion flow baffle 6 is arranged above the air outlet 5, a connecting sliding sleeve 601 is arranged in the middle of the anti-explosion flow baffle, a vertical sliding rod 602 is nested inside the connecting sliding sleeve 601, a buffer spring 603 is arranged in the middle of the vertical sliding rod 602, and a limiting frame 604 is arranged above the buffer spring 603.
Referring to fig. 2 to 6, optionally, the ring-shaped baffle 202 is rotatably connected to the ring-shaped air inlet 2 through a rotating connecting groove 201, the ring-shaped air inlet 2 is matched with the ring-shaped baffle 202 in size, the communicating ports 203 are symmetrically arranged about a vertical center line of the ring-shaped baffle 202, an opening angle of the communicating port 203 is ninety degrees, the ring-shaped air inlet 2 is arranged at the bottom of the cabinet body 1 of the power distribution cabinet, external air is introduced into the electrical cabin 102 inside the cabinet body 1 through the ring-shaped air inlet 2, so as to perform heat dissipation work, the ring-shaped air inlet 2 is of a circular structure, so that an omnidirectional air inlet channel can be provided, the ventilation and heat dissipation effects can be improved, the ring-shaped baffle 202 is arranged around the outer side of the ring-shaped air inlet 2, the ring-shaped baffle 202 can rotate through the rotating connecting grooves 201 at the upper and lower sides of the ring-shaped air inlet 2, and as the hollowed-out area of the ring-shaped baffle 202, that is, only two communicating ports 203 are arranged, these two intercommunication mouths 203 symmetry are established and the opening angle is ninety degrees to restrict annular air intake 2's an intake volume direction, through rotate annular baffle 202 alright in order to adjust the direction of air inlet, thereby can be by the front and back air inlet when adjacent placing about the switch board, and can be by left and right sides side air inlet when adjacent placing around the switch board, prevent mutual interference.
Referring to fig. 3 to 6, optionally, the concave flow baffle 4 is slidably connected to the vertical chute 402 through a connecting frame 401, vertical center lines of the vertical chute 402 are parallel to each other, the vertical center line of the concave flow baffle 4 and the vertical center line of the air duct connecting port 302 are located on the same straight line, the concave flow baffle 4 and the sealing rubber ring 303 are matched in size, the power distribution cabinet is provided with an annular air inlet 2 through the bottom of the cabinet body 1 to introduce air, the air is collected to the air inlet collecting plate 3 above the annular air inlet 2 after passing through the fan 301 arranged inside the annular air inlet 2, the air inlet collecting plate 3 has a structure with a large lower part and a small upper part, so that the flow rate of the air can be increased, the air is led out from the air duct connecting port 302 through the air inlet collecting plate 3 and is circulated into the electric bin 102 through a gap between the air duct connecting port 302 and the concave flow baffle 4, and the concave flow baffle 4 has an arc-shaped direction-changing bowl-shaped structure, the arc structure of lower surface can reduce the resistance and carry out the water conservancy diversion, and when taking place the arcing in the switch board, the air is by high temperature arc heating expansion, make electric storehouse 102 internal pressure increase, and concave fender stream board 4 receives gas pressure and impact can the downstream, thereby the lock is in wind channel connector 302 department, and keep sealed through sealed rubber ring 303, thereby close wind channel connector 302, make inside high-pressure gas can't spout by the air inlet direction, because annular air intake 2 just to other electric appliance cabinets and staff, so can protect equipment and personnel in the annular air intake 2 outside, after the pressure release is accomplished simultaneously, concave fender stream board 4 rises through reset spring 403 and resets, be convenient for the air reentrant with the inside flue gas of the cabinet body 1 discharge, resume the heat dissipation for it.
Referring to fig. 3 to 8, optionally, the vertical center line of the inlet air collecting plate 3 and the vertical center line of the outlet air collecting plate 502 are located on the same straight line, the vertical center line of the explosion-proof flow baffle 6 and the vertical center line of the outlet 5 are located on the same straight line, the lower surface of the explosion-proof flow baffle 6 and the vertical center line of the outlet 5 are perpendicular to each other, the explosion-proof flow baffle 6 is slidably connected to the vertical sliding rod 602 through a connecting sliding sleeve 601, the vertical center lines of the vertical sliding rods 602 are parallel to each other, the power distribution cabinet discharges the heat dissipation air through the outlet 5 disposed on the top cover 101 of the cabinet body 1, and in a general state, the heat dissipation air is blocked by the explosion-proof flow baffle 6 after being discharged from the outlet 5, so as to be further discharged through the protective baffle 501 in the side direction, the outlet 5 is prevented from directly leaking out, dust and sundries are prevented from falling into the cabinet body 1 through the outlet 5, and when arcing occurs in the power distribution cabinet, the air is heated by high temperature electric arc and expands, make electrical bin 102 internal pressure increase, and the air inlet direction seals through concave fender and flows board 4, so high-pressure gas all releases through air outlet 5, because pressure is too big, explosion-proof fender and flows board 6 is strikeed to the air, make explosion-proof fender and flow board 6 upwards remove on vertical slide bar 602 through connecting sliding sleeve 601, thereby enlarge the flow in the 5 outsides of air outlet in the twinkling of an eye, make inside high-pressure gas can release fast, prevent to explode and damage cabinet body 1 and equipment, it is safer to use, and buffer spring 603 can provide the buffering when explosion-proof fender and flow board 6 receives the impact and move, prevent that the switch board from being stressed too big and damaging in the twinkling of an eye.
When the power distribution cabinet is used, firstly, the power distribution cabinet is arranged at a required position, corresponding electrical equipment is installed inside the cabinet body 1, when the power distribution cabinet is adjacently arranged at the left side and the right side, the annular baffle 202 can be rotated to enable the communication port 203 to be positioned at the front side and the rear side, so that air can be conveniently fed through the front side and the rear side, when the power distribution cabinet is adjacently arranged at the front side and the rear side or is arranged against a wall surface, the annular baffle 202 can be rotated to enable the communication port 203 to be positioned at the left side and the right side, so that air can be conveniently fed through the left side and the right side, when the power distribution cabinet is independently arranged, the annular baffle 202 can be taken down, so that the power distribution cabinet can conveniently feed air through the annular air inlet 2 in all directions to improve the heat dissipation effect, when the power distribution cabinet is used, the fan 301 introduces air through the annular air inlet 2 and then collects the air inlet collecting plate 3 above the air inlet collecting plate 3, and the air inlet collecting plate 3 is led out through the air duct connecting port 302, the air is changed in direction and flows into the electric bin 102 through a gap between the air duct connecting port 302 and the concave flow baffle plate 4, the air carries heat out from bottom to top, the air is discharged from the air outlet 5 through the air outlet convergence plate 502, when arcing occurs in the power distribution cabinet, the air is heated and expanded by high-temperature electric arc, the pressure in the electric bin 102 is increased, the concave flow baffle plate 4 moves downwards under the action of gas pressure and impact, and is buckled at the air duct connecting port 302 and kept sealed through the sealing rubber ring 303, so that the air duct connecting port 302 is closed, high-pressure gas in the air duct connecting port 302 cannot be sprayed out in the air inlet direction, equipment and personnel outside the annular air inlet 2 can be protected due to the fact that the annular air inlet 2 is over against other electric appliance cabinets and workers, the compressed gas is released through the air outlet 5, and the air impacts the explosion-proof flow baffle plate 6, so that the explosion-proof flow baffle plate 6 moves upwards on the vertical sliding rod 602 through the connecting sliding sleeve 601, thereby enlarge the flow in the outside of air outlet 5 in the twinkling of an eye, make inside high-pressure gas can release fast, prevent to explode and damage cabinet body 1 and equipment, cabinet body 1 internal pressure resumes normally afterwards, and concave type baffling board 4 rises through reset spring 403 and resets, and the air reentrant of being convenient for discharges the inside flue gas of cabinet body 1, resumes the heat dissipation for it, and explosion-proof baffling board 6 also receives gravity free fall to reset.
According to the arc-burning-prevention multi-pressure-relief power distribution cabinet provided by the invention, air is fed through the annular air inlet 2 arranged at the bottom of the cabinet body 1 for heat dissipation, the air outlet convergence plate 502 and the air inlet convergence plate 3 which are symmetrically arranged up and down in the electric bin 102 are both provided with an explosion-proof pressure-relief and sealing structure, the concave flow baffle plate 4 arranged at the air inlet convergence plate 3 can sink when the pressure inside the cabinet body 1 is increased, so that the air duct connecting port 302 is sealed, high-pressure explosive gas is prevented from being discharged through the air duct connecting port 302 and the annular air inlet 2, damage to surrounding electric equipment and personnel is avoided, the air outlet 5 of the air outlet convergence plate 502 is adjusted in air outlet size through the explosion-proof flow baffle plate 6, so that the high-pressure explosive gas can be completely released through the air outlet 5, and explosion damage to equipment in the cabinet body 1 is avoided.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; combinations between features of the above embodiments or different embodiments are also possible within the inventive idea, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, equivalents, improvements, and the like that may be made without departing from the spirit or scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a multiple pressure release formula switch board of preventing arcing which characterized in that includes:
the electric cabinet comprises a cabinet body, wherein a top cover is arranged at the top of the cabinet body, an electric bin is arranged in the cabinet body, a bottom mounting frame is arranged at the bottom of the electric bin, and a top isolation plate is arranged at the top of the electric bin;
the annular air inlet is arranged at the bottom of the cabinet body, a rotating connecting groove is formed in the middle of the annular air inlet, an annular baffle is arranged on the inner side of the rotating connecting groove, and a communicating opening is formed in the middle of the annular baffle;
the air inlet converging plate is arranged on the inner side of the annular air inlet, a fan is arranged in the middle of the air inlet converging plate, an air duct connecting port is arranged at the top end of the air inlet converging plate, and a sealing rubber ring is arranged in the middle of the air duct connecting port;
the concave flow baffle is arranged above the air duct connecting port, the outer side of the concave flow baffle is provided with a connecting frame, the outer end of the connecting frame is provided with a vertical sliding groove, and the middle of the vertical sliding groove is provided with a return spring;
the air outlet is arranged in the middle of the top cover, a protective baffle is arranged on the outer side of the air outlet, and an air outlet convergence plate is arranged below the air outlet convergence plate;
the anti-explosion flow baffle is arranged above the air outlet, a connecting sliding sleeve is arranged in the middle of the anti-explosion flow baffle, a vertical sliding rod is nested inside the connecting sliding sleeve, a buffer spring is arranged in the middle of the vertical sliding rod, and a limiting frame is arranged above the buffer spring;
the annular baffle is rotationally connected with the annular air inlet through the rotary connecting groove, and the annular air inlet is matched with the annular baffle in size;
the communication ports are symmetrically arranged relative to the vertical central line of the annular baffle, and the opening angle of the communication ports is ninety degrees;
the concave flow baffle is connected with the vertical sliding groove in a sliding manner through the connecting frame, and the vertical central lines of the vertical sliding grooves are parallel to each other;
the vertical central line of the concave flow baffle and the vertical central line of the air duct connecting port are positioned on the same straight line, and the concave flow baffle and the sealing rubber ring are matched in size.
2. The arc-burning-prevention multi-pressure-relief power distribution cabinet according to claim 1, wherein a vertical center line of the inlet air convergence plate and a vertical center line of the outlet air convergence plate are located on the same straight line.
3. The arc-burning-prevention multi-pressure-relief power distribution cabinet according to claim 1, wherein a vertical center line of the explosion-proof flow baffle and a vertical center line of the air outlet are located on the same straight line, and a lower surface of the explosion-proof flow baffle and the vertical center line of the air outlet are perpendicular to each other.
4. The arc-burning-prevention multi-pressure-relief type power distribution cabinet according to claim 1, wherein the explosion-proof flow baffle is slidably connected with the vertical sliding rods through the connecting sliding sleeves, and vertical center lines of the vertical sliding rods are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530252.0A CN111817179B (en) | 2020-06-11 | 2020-06-11 | Prevent burning multiple pressure release formula switch board of arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530252.0A CN111817179B (en) | 2020-06-11 | 2020-06-11 | Prevent burning multiple pressure release formula switch board of arc |
Publications (2)
| Publication Number | Publication Date |
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| CN111817179A CN111817179A (en) | 2020-10-23 |
| CN111817179B true CN111817179B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010530252.0A Active CN111817179B (en) | 2020-06-11 | 2020-06-11 | Prevent burning multiple pressure release formula switch board of arc |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976899B (en) * | 2020-12-21 | 2024-09-13 | 济南志远电器成套设备有限公司 | Low-voltage power distribution cabinet for power system |
| CN112839472B (en) * | 2020-12-30 | 2023-04-18 | 安徽天赢电气成套设备制造有限公司 | Interval heat dissipation formula regulator cubicle |
| CN114198854A (en) * | 2021-11-12 | 2022-03-18 | 浙江维度环保科技有限公司 | Indoor air treatment construction process based on real-time monitoring of negative ions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204179508U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of pressure relief device of switch cabinet |
| US10644484B2 (en) * | 2018-09-06 | 2020-05-05 | Toshiba International Corporation | Arc resistant exhaust and intake for drives and switchgear |
| CN209298623U (en) * | 2019-02-20 | 2019-08-23 | 陕西伏尔特电气有限公司 | A kind of pressure relief device of low-voltage distribution cabinet |
| CN209675718U (en) * | 2019-04-22 | 2019-11-22 | 重庆市渝展电气有限公司 | A kind of GCS top cover for switch cabinet structure |
| CN210517390U (en) * | 2019-09-26 | 2020-05-12 | 郑淼 | Auxiliary heat dissipation device for electrical engineering equipment |
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